diff --git a/.gitignore b/.gitignore
index 3f15a070..950eecdd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,3 +50,9 @@ iterate.dat
 
 # pycharm IDE stuff
 .idea/
+
+# docs
+GPy*.rst
+
+# vscode
+settings.json
\ No newline at end of file
diff --git a/.readthedocs.yml b/.readthedocs.yml
new file mode 100644
index 00000000..36eef22f
--- /dev/null
+++ b/.readthedocs.yml
@@ -0,0 +1,24 @@
+# .readthedocs.yml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+  configuration: doc/source/conf.py
+
+# Build documentation with MkDocs
+#mkdocs:
+#  configuration: mkdocs.yml
+
+# Optionally build your docs in additional formats such as PDF and ePub
+formats: 
+  - htmlzip
+
+# Optionally set the version of Python and requirements required to build your docs
+python:
+  version: 3.7
+  install:
+    - requirements: doc/source/requirements.txt
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index 038bab01..f2fc73f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,7 @@
 sudo: false
 
+osx_image: xcode12.2
+
 os:
 - osx
 - linux
@@ -14,12 +16,11 @@ addons:
 #  - "$HOME/install/"
 
 env:
-  - PYTHON_VERSION=2.7
-  #- PYTHON_VERSION=3.3
-  #- PYTHON_VERSION=3.4
   - PYTHON_VERSION=3.5
   - PYTHON_VERSION=3.6
   - PYTHON_VERSION=3.7
+  - PYTHON_VERSION=3.8
+  - PYTHON_VERSION=3.9
 
 before_install:
 - wget https://github.com/mzwiessele/travis_scripts/raw/master/download_miniconda.sh
diff --git a/GPy/__version__.py b/GPy/__version__.py
index 5986f100..fcfdf383 100644
--- a/GPy/__version__.py
+++ b/GPy/__version__.py
@@ -1 +1 @@
-__version__ = "1.9.9"
+__version__ = "1.10.0"
diff --git a/GPy/core/__init__.py b/GPy/core/__init__.py
index 49e9c3c7..08659add 100644
--- a/GPy/core/__init__.py
+++ b/GPy/core/__init__.py
@@ -1,6 +1,47 @@
 # Copyright (c) 2012-2014, GPy authors (see AUTHORS.txt).
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
 
+"""
+Introduction
+^^^^^^^^^^^^
+
+This module contains the fundamental classes of GPy - classes that are
+inherited by objects in other parts of GPy in order to provide a
+consistent interface to major functionality.
+
+.. inheritance-diagram:: GPy.core.gp.GP
+    :top-classes: paramz.core.parameter_core.Parameterizable
+
+:py:class:`GPy.core.model` is inherited by
+:py:class:`GPy.core.gp.GP`. And :py:class:`GPy.core.model` itself
+inherits :py:class:`paramz.model.Model` from the `paramz`
+package. `paramz` essentially provides an inherited set of properties
+and functions used to manage state (and state changes) of the model.
+
+:py:class:`GPy.core.gp.GP` represents a GP model. Such an entity is
+typically passed variables representing known (x) and observed (y)
+data, along with a kernel and other information needed to create the
+specific model. It exposes functions which return information derived
+from the inputs to the model, for example predicting unobserved
+variables based on new known variables, or the log marginal likelihood
+of the current state of the model.
+
+:py:func:`~GPy.core.gp.GP.optimize` is called to optimize
+hyperparameters of the model. The optimizer argument takes a string
+which is used to specify non-default optimization schemes.
+
+Various plotting functions can be called against :py:class:`GPy.core.gp.GP`.
+
+.. inheritance-diagram:: GPy.core.gp_grid.GpGrid GPy.core.sparse_gp.SparseGP GPy.core.sparse_gp_mpi.SparseGP_MPI GPy.core.svgp.SVGP 
+    :top-classes: GPy.core.gp.GP
+
+:py:class:`GPy.core.gp.GP` is used as the basis for classes supporting
+more specialized types of Gaussian Process model. These are however
+generally still not specific enough to be called by the user and are
+inhereted by members of the :py:class:`GPy.models` package.
+
+"""
+
 from GPy.core.model import Model
 from .parameterization import Param, Parameterized
 from . import parameterization
diff --git a/GPy/core/gp.py b/GPy/core/gp.py
index 1e2e3611..66d62f62 100644
--- a/GPy/core/gp.py
+++ b/GPy/core/gp.py
@@ -43,8 +43,6 @@ class GP(Model):
             self.X = X.copy()
         else: self.X = ObsAr(X)
 
-        self.num_data, self.input_dim = self.X.shape
-
         assert Y.ndim == 2
         logger.info("initializing Y")
 
@@ -199,6 +197,14 @@ class GP(Model):
     def _predictive_variable(self):
         return self.X
 
+    @property
+    def num_data(self):
+        return self.X.shape[0]
+
+    @property
+    def input_dim(self):
+        return self.X.shape[1]
+
     def set_XY(self, X=None, Y=None):
         """
         Set the input / output data of the model
@@ -235,6 +241,7 @@ class GP(Model):
                     self.link_parameter(self.X, index=index)
             else:
                 self.X = ObsAr(X)
+
         self.update_model(True)
 
     def set_X(self,X):
@@ -328,7 +335,7 @@ class GP(Model):
             of the output dimensions.
 
         Note: If you want the predictive quantiles (e.g. 95% confidence
-        interval) use :py:func:"~GPy.core.gp.GP.predict_quantiles".
+        interval) use :py:func:`~GPy.core.gp.GP.predict_quantiles`.
         """
 
         # Predict the latent function values
@@ -377,7 +384,7 @@ class GP(Model):
            If full_cov and self.input_dim > 1, the return shape of var is Nnew x Nnew x self.input_dim. If self.input_dim == 1, the return shape is Nnew x Nnew.
            This is to allow for different normalizations of the output dimensions.
 
-        Note: If you want the predictive quantiles (e.g. 95% confidence interval) use :py:func:"~GPy.core.gp.GP.predict_quantiles".
+        Note: If you want the predictive quantiles (e.g. 95% confidence interval) use :py:func:`~GPy.core.gp.GP.predict_quantiles`.
         """
         return self.predict(Xnew, full_cov, Y_metadata, kern, None, False)
 
@@ -451,6 +458,15 @@ class GP(Model):
             alpha = -2.*np.dot(kern.K(Xnew, self._predictive_variable),
                                self.posterior.woodbury_inv)
             var_jac += kern.gradients_X(alpha, Xnew, self._predictive_variable)
+
+        if self.normalizer is not None:
+            mean_jac = self.normalizer.inverse_mean(mean_jac) \
+                       - self.normalizer.inverse_mean(0.)
+            if self.output_dim > 1:
+                var_jac = self.normalizer.inverse_covariance(var_jac)
+            else:
+                var_jac = self.normalizer.inverse_variance(var_jac)
+
         return mean_jac, var_jac
 
     def predict_jacobian(self, Xnew, kern=None, full_cov=False):
@@ -587,9 +603,9 @@ class GP(Model):
         :param size: the number of a posteriori samples.
         :type size: int.
         :returns: set of simulations
-        :rtype: np.ndarray (Nnew x D x samples) 
+        :rtype: np.ndarray (Nnew x D x samples)
         """
-        predict_kwargs["full_cov"] = True  # Always use the full covariance for posterior samples. 
+        predict_kwargs["full_cov"] = True  # Always use the full covariance for posterior samples.
         m, v = self._raw_predict(X,  **predict_kwargs)
         if self.normalizer is not None:
             m, v = self.normalizer.inverse_mean(m), self.normalizer.inverse_variance(v)
@@ -711,11 +727,59 @@ class GP(Model):
         mu_star, var_star = self._raw_predict(x_test)
         return self.likelihood.log_predictive_density_sampling(y_test, mu_star, var_star, Y_metadata=Y_metadata, num_samples=num_samples)
 
-    def posterior_covariance_between_points(self, X1, X2):
+
+    def _raw_posterior_covariance_between_points(self, X1, X2):
         """
-        Computes the posterior covariance between points.
+        Computes the posterior covariance between points. Does not account for 
+        normalization or likelihood
 
         :param X1: some input observations
         :param X2: other input observations
+
+        :returns: 
+            cov: raw posterior covariance: k(X1,X2) - k(X1,X) G^{-1} K(X,X2)
         """
         return self.posterior.covariance_between_points(self.kern, self.X, X1, X2)
+
+
+    def posterior_covariance_between_points(self, X1, X2, Y_metadata=None, 
+                                            likelihood=None, 
+                                            include_likelihood=True):
+        """
+        Computes the posterior covariance between points. Includes likelihood 
+        variance as well as normalization so that evaluation at (x,x) is consistent 
+        with model.predict
+
+        :param X1: some input observations
+        :param X2: other input observations
+        :param Y_metadata: metadata about the predicting point to pass to the
+                           likelihood
+        :param include_likelihood: Whether or not to add likelihood noise to
+                                   the predicted underlying latent function f.
+        :type include_likelihood: bool
+
+        :returns: 
+            cov: posterior covariance, a Numpy array, Nnew x Nnew if 
+            self.output_dim == 1, and Nnew x Nnew x self.output_dim otherwise.
+        """
+
+        cov = self._raw_posterior_covariance_between_points(X1, X2)
+
+        if include_likelihood:
+            # Predict latent mean and push through likelihood
+            mean, _ = self._raw_predict(X1, full_cov=True)
+            if likelihood is None:
+                likelihood = self.likelihood
+            _, cov = likelihood.predictive_values(mean, cov, full_cov=True, 
+                                                  Y_metadata=Y_metadata)
+
+        if self.normalizer is not None:
+            if self.output_dim > 1:
+                cov = self.normalizer.inverse_covariance(cov)
+            else:
+                cov = self.normalizer.inverse_variance(cov)
+
+        return cov
+
+
+
diff --git a/GPy/core/gp_grid.py b/GPy/core/gp_grid.py
index 3cd7d8cb..cfb96fd4 100644
--- a/GPy/core/gp_grid.py
+++ b/GPy/core/gp_grid.py
@@ -46,7 +46,7 @@ class GpGrid(GP):
 
         inference_method = gaussian_grid_inference.GaussianGridInference()
 
-        GP.__init__(self, X, Y, kernel, likelihood, inference_method=inference_method, name=name, Y_metadata=Y_metadata, normalizer=normalizer)
+        super(GpGrid, self).__init__(X, Y, kernel, likelihood, inference_method=inference_method, name=name, Y_metadata=Y_metadata, normalizer=normalizer)
         self.posterior = None
 
     def parameters_changed(self):
diff --git a/GPy/core/parameterization/__init__.py b/GPy/core/parameterization/__init__.py
index fb064c9c..28ac755f 100644
--- a/GPy/core/parameterization/__init__.py
+++ b/GPy/core/parameterization/__init__.py
@@ -1,3 +1,14 @@
+"""
+Introduction
+^^^^^^^^^^^^
+
+Extends the functionality of the `paramz` package (dependency) to support paramterization of priors (:py:class:`GPy.core.parameterization.priors`).
+
+.. inheritance-diagram:: GPy.core.parameterization.priors
+   :top-classes: paramz.core.parameter_core.Parameterizable
+"""
+
+
 # Copyright (c) 2012-2014, GPy authors (see AUTHORS.txt).
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
 
diff --git a/GPy/core/parameterization/priors.py b/GPy/core/parameterization/priors.py
index cbff4ca0..906ad65f 100644
--- a/GPy/core/parameterization/priors.py
+++ b/GPy/core/parameterization/priors.py
@@ -17,7 +17,7 @@ class Prior(object):
         if not cls._instance or cls._instance.__class__ is not cls:
                 newfunc = super(Prior, cls).__new__
                 if newfunc is object.__new__:
-                    cls._instance = newfunc(cls)  
+                    cls._instance = newfunc(cls)
                 else:
                     cls._instance = newfunc(cls, *args, **kwargs)
                 return cls._instance
@@ -58,9 +58,9 @@ class Gaussian(Prior):
                     return instance()
         newfunc = super(Prior, cls).__new__
         if newfunc is object.__new__:
-            o = newfunc(cls)  
+            o = newfunc(cls)
         else:
-            o = newfunc(cls, mu, sigma)            
+            o = newfunc(cls, mu, sigma)
         cls._instances.append(weakref.ref(o))
         return cls._instances[-1]()
 
@@ -102,9 +102,9 @@ class Uniform(Prior):
                     return instance()
         newfunc = super(Prior, cls).__new__
         if newfunc is object.__new__:
-            o = newfunc(cls)  
+            o = newfunc(cls)
         else:
-            o = newfunc(cls, lower, upper)     
+            o = newfunc(cls, lower, upper)
         cls._instances.append(weakref.ref(o))
         return cls._instances[-1]()
 
@@ -282,7 +282,7 @@ class Gamma(Prior):
                     return instance()
         newfunc = super(Prior, cls).__new__
         if newfunc is object.__new__:
-            o = newfunc(cls)  
+            o = newfunc(cls)
         else:
             o = newfunc(cls, a, b)
         cls._instances.append(weakref.ref(o))
@@ -542,8 +542,8 @@ class DGPLVM(Prior):
 
     """
     domain = _REAL
-    
-    def __new__(cls, sigma2, lbl, x_shape): 
+
+    def __new__(cls, sigma2, lbl, x_shape):
         return super(Prior, cls).__new__(cls, sigma2, lbl, x_shape)
 
     def __init__(self, sigma2, lbl, x_shape):
@@ -909,13 +909,13 @@ class DGPLVM_Lamda(Prior, Parameterized):
     # This function calculates log of our prior
     def lnpdf(self, x):
         x = x.reshape(self.x_shape)
-	
-	#!!!!!!!!!!!!!!!!!!!!!!!!!!!
-	#self.lamda.values[:] = self.lamda.values/self.lamda.values.sum()	
+
+        #!!!!!!!!!!!!!!!!!!!!!!!!!!!
+        #self.lamda.values[:] = self.lamda.values/self.lamda.values.sum()
 
         xprime = x.dot(np.diagflat(self.lamda))
         x = xprime
-	# print x
+        # print x
         cls = self.compute_cls(x)
         M_0 = np.mean(x, axis=0)
         M_i = self.compute_Mi(cls)
@@ -932,7 +932,7 @@ class DGPLVM_Lamda(Prior, Parameterized):
         x = x.reshape(self.x_shape)
         xprime = x.dot(np.diagflat(self.lamda))
         x = xprime
-	# print x
+        # print x
         cls = self.compute_cls(x)
         M_0 = np.mean(x, axis=0)
         M_i = self.compute_Mi(cls)
@@ -964,14 +964,14 @@ class DGPLVM_Lamda(Prior, Parameterized):
 
         # Because of the GPy we need to transpose our matrix so that it gets the same shape as out matrix (denominator layout!!!)
         DPxprim_Dx = DPxprim_Dx.T
-    
+
         DPxprim_Dlamda = DPx_Dx.dot(x)
 
-    	# Because of the GPy we need to transpose our matrix so that it gets the same shape as out matrix (denominator layout!!!)
+        # Because of the GPy we need to transpose our matrix so that it gets the same shape as out matrix (denominator layout!!!)
         DPxprim_Dlamda = DPxprim_Dlamda.T
 
         self.lamda.gradient = np.diag(DPxprim_Dlamda)
-	# print DPxprim_Dx
+        # print DPxprim_Dx
         return DPxprim_Dx
 
 
@@ -1046,7 +1046,7 @@ class DGPLVM_T(Prior):
         M_i = np.zeros((self.classnum, self.dim))
         for i in cls:
             # Mean of each class
-	    # class_i = np.multiply(cls[i],vec)
+            # class_i = np.multiply(cls[i],vec)
             class_i = cls[i]
             M_i[i] = np.mean(class_i, axis=0)
         return M_i
@@ -1155,7 +1155,7 @@ class DGPLVM_T(Prior):
         x = x.reshape(self.x_shape)
         xprim = x.dot(self.vec)
         x = xprim
-	# print x  
+        # print x
         cls = self.compute_cls(x)
         M_0 = np.mean(x, axis=0)
         M_i = self.compute_Mi(cls)
@@ -1163,7 +1163,7 @@ class DGPLVM_T(Prior):
         Sw = self.compute_Sw(cls, M_i)
         # Sb_inv_N = np.linalg.inv(Sb + np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.1))
         #Sb_inv_N = np.linalg.inv(Sb+np.eye(Sb.shape[0])*0.1)
-	#print 'SB_inv: ', Sb_inv_N
+        #print 'SB_inv: ', Sb_inv_N
         #Sb_inv_N = pdinv(Sb+ np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.1))[0]
         Sb_inv_N = pdinv(Sb+np.eye(Sb.shape[0])*0.1)[0]
         return (-1 / self.sigma2) * np.trace(Sb_inv_N.dot(Sw))
@@ -1172,8 +1172,8 @@ class DGPLVM_T(Prior):
     def lnpdf_grad(self, x):
         x = x.reshape(self.x_shape)
         xprim = x.dot(self.vec)
-        x = xprim 
-	# print x       
+        x = xprim
+        # print x
         cls = self.compute_cls(x)
         M_0 = np.mean(x, axis=0)
         M_i = self.compute_Mi(cls)
@@ -1188,7 +1188,7 @@ class DGPLVM_T(Prior):
         # Calculating inverse of Sb and its transpose and minus
         # Sb_inv_N = np.linalg.inv(Sb + np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.1))
         #Sb_inv_N = np.linalg.inv(Sb+np.eye(Sb.shape[0])*0.1)
-	#print 'SB_inv: ',Sb_inv_N
+        #print 'SB_inv: ',Sb_inv_N
         #Sb_inv_N = pdinv(Sb+ np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.1))[0]
         Sb_inv_N = pdinv(Sb+np.eye(Sb.shape[0])*0.1)[0]
         Sb_inv_N_trans = np.transpose(Sb_inv_N)
@@ -1375,4 +1375,5 @@ class StudentT(Prior):
     def rvs(self, n):
         from scipy.stats import t
         ret = t.rvs(self.nu, loc=self.mu, scale=self.sigma, size=n)
-        return ret    
+        return ret
+
diff --git a/GPy/core/sparse_gp.py b/GPy/core/sparse_gp.py
index d9439d28..95940282 100644
--- a/GPy/core/sparse_gp.py
+++ b/GPy/core/sparse_gp.py
@@ -53,7 +53,7 @@ class SparseGP(GP):
         self.Z = Param('inducing inputs', Z)
         self.num_inducing = Z.shape[0]
 
-        GP.__init__(self, X, Y, kernel, likelihood, mean_function, inference_method=inference_method, name=name, Y_metadata=Y_metadata, normalizer=normalizer)
+        super(SparseGP, self).__init__(X, Y, kernel, likelihood, mean_function, inference_method=inference_method, name=name, Y_metadata=Y_metadata, normalizer=normalizer)
 
         logger.info("Adding Z as parameter")
         self.link_parameter(self.Z, index=0)
diff --git a/GPy/examples/__init__.py b/GPy/examples/__init__.py
index 8c7a5b65..d0636ea8 100644
--- a/GPy/examples/__init__.py
+++ b/GPy/examples/__init__.py
@@ -1,10 +1,16 @@
 # Copyright (c) 2012-2014, GPy authors (see AUTHORS.txt).
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
 """
-Examples for GPy.
+Introduction
+^^^^^^^^^^^^
 
 The examples in this package usually depend on `pods <https://github.com/sods/ods>`_ so make sure 
-you have that installed before running examples.
+you have that installed before running examples. The easiest way to do this is to run `pip install pods`. `pods` enables access to 3rd party data required for most of the examples. 
+
+The examples are executable and self-contained workflows in that they have their own source data, create their own models, kernels and other objects as needed, execute optimisation as required, and display output.
+
+Viewing the source code of each model will clarify the steps taken in its execution, and may provide inspiration for developing of user-specific applications of `GPy`.
+
 """
 from . import classification
 from . import regression
diff --git a/GPy/examples/regression.py b/GPy/examples/regression.py
index 583f12a9..93e05cbb 100644
--- a/GPy/examples/regression.py
+++ b/GPy/examples/regression.py
@@ -620,8 +620,10 @@ def multioutput_gp_with_derivative_observations():
 
     # Then create the model, we give everything in lists, the order of the inputs indicates the order of the outputs
     # Now we have the regular observations first and derivative observations second, meaning that the kernels and
-    # the likelihoods must follow the same order. Crosscovariances are automatically taken car of
-    m = GPy.models.MultioutputGP(X_list=[x, xd], Y_list=[y, yd], kernel_list=[se, se_der], likelihood_list = [gauss, gauss])
+    # the likelihoods must follow the same order. Crosscovariances are automatically taken care of
+    m = GPy.models.MultioutputGP(X_list=[x, xd], Y_list=[y, yd],
+                                 kernel_list=[se, se_der],
+                                 likelihood_list=[gauss, gauss_der])
 
     # Optimize the model
     m.optimize(messages=0, ipython_notebook=False)
diff --git a/GPy/inference/__init__.py b/GPy/inference/__init__.py
index 4d94c619..283cb8dc 100644
--- a/GPy/inference/__init__.py
+++ b/GPy/inference/__init__.py
@@ -1,3 +1,11 @@
+"""
+Introduction
+^^^^^^^^^^^^
+
+
+
+"""
+
 from . import optimization
 from . import latent_function_inference
 from . import mcmc
diff --git a/GPy/inference/latent_function_inference/__init__.py b/GPy/inference/latent_function_inference/__init__.py
index be4fbde6..5af09442 100644
--- a/GPy/inference/latent_function_inference/__init__.py
+++ b/GPy/inference/latent_function_inference/__init__.py
@@ -1,23 +1,30 @@
 # Copyright (c) 2012-2014, Max Zwiessele, James Hensman
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
 
-__doc__ = """
+"""
+Introduction
+^^^^^^^^^^^^
+
+Certain :py:class:`GPy.models` can be instanciated with an `inference_method`. This submodule contains objects that can be assigned to `inference_method`.
+
 Inference over Gaussian process latent functions
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-In all our GP models, the consistency propery means that we have a Gaussian
-prior over a finite set of points f. This prior is
+In all our GP models, the consistency property means that we have a Gaussian
+prior over a finite set of points f. This prior is:
 
-  math:: N(f | 0, K)
+.. math:: 
+    N(f | 0, K)
 
-where K is the kernel matrix.
+where :math:`K` is the kernel matrix.
 
-We also have a likelihood (see GPy.likelihoods) which defines how the data are
-related to the latent function: p(y | f).  If the likelihood is also a Gaussian,
-the inference over f is tractable (see exact_gaussian_inference.py).
+We also have a likelihood (see :py:class:`GPy.likelihoods`) which defines how the data are
+related to the latent function: :math:`p(y | f)`.  If the likelihood is also a Gaussian,
+the inference over :math:`f` is tractable (see :py:class:`GPy.inference.latent_function_inference.exact_gaussian_inference`).
 
 If the likelihood object is something other than Gaussian, then exact inference
-is not tractable. We then resort to a Laplace approximation (laplace.py) or
-expectation propagation (ep.py).
+is not tractable. We then resort to a Laplace approximation (:py:class:`GPy.inference.latent_function_inference.laplace`) or
+expectation propagation (:py:class:`GPy.inference.latent_function_inference.expectation_propagation`).
 
 The inference methods return a
 :class:`~GPy.inference.latent_function_inference.posterior.Posterior`
diff --git a/GPy/inference/latent_function_inference/var_dtc.py b/GPy/inference/latent_function_inference/var_dtc.py
index 9870015d..b4c9bfdf 100644
--- a/GPy/inference/latent_function_inference/var_dtc.py
+++ b/GPy/inference/latent_function_inference/var_dtc.py
@@ -142,8 +142,7 @@ class VarDTC(LatentFunctionInference):
         Cpsi1Vf, _ = dtrtrs(Lm, tmp, lower=1, trans=1)
 
         # data fit and derivative of L w.r.t. Kmm
-        dL_dm = -np.dot((_LBi_Lmi_psi1.T.dot(_LBi_Lmi_psi1))
-                        - np.eye(Y.shape[0]), VVT_factor)
+        dL_dm = -_LBi_Lmi_psi1.T.dot(_LBi_Lmi_psi1.dot(VVT_factor)) + VVT_factor
 
         delit = tdot(_LBi_Lmi_psi1Vf)
         data_fit = np.trace(delit)
diff --git a/GPy/kern/__init__.py b/GPy/kern/__init__.py
index 0b769e0a..178e4019 100644
--- a/GPy/kern/__init__.py
+++ b/GPy/kern/__init__.py
@@ -1,10 +1,36 @@
-"""
-Kernel module the kernels to sit in.
 
-.. automodule:: .src
-   :members:
-   :private-members:
 """
+Introduction
+^^^^^^^^^^^^
+
+In terms of Gaussian Processes, a kernel is a function that specifies
+the degree of similarity between variables given their relative
+positions in parameter space. If known variables *x* and *x'* are
+close together then observed variables *y* and *y'* may also be
+similar, depending on the kernel function and its parameters. *Note:
+this may be too simple a definition for the broad range of kernels
+available in :py:class:`GPy`.*
+
+:py:class:`GPy.kern.src.kern.Kern` is a generic kernel object
+inherited by more specific, end-user kernels used in models. It
+provides methods that specific kernels should generally have such as
+:py:class:`GPy.kern.src.kern.Kern.K` to compute the value of the
+kernel, :py:class:`GPy.kern.src.kern.Kern.add` to combine kernels and
+numerous functions providing information on kernel gradients.
+
+There are several inherited types of kernel that provide a basis for specific end user kernels:
+
+.. inheritance-diagram:: GPy.kern.src.kern.Kern GPy.kern.src.static GPy.kern.src.stationary GPy.kern.src.kern.CombinationKernel GPy.kern.src.brownian GPy.kern.src.linear GPy.kern.src.standard_periodic
+   :top-classes: GPy.core.parameterization.parameterized.Parameterized
+
+e.g. the archetype :py:class:`GPy.kern.RBF` does not inherit directly from :py:class:`GPy.kern.src.kern.Kern`, but from :py:class:`GPy.kern.src.stationary`.
+
+.. inheritance-diagram:: GPy.kern.src.kern.Kern GPy.kern.RBF
+   :top-classes: GPy.core.parameterization.parameterized.Parameterized
+
+"""
+
+
 from .src.kern import Kern
 from .src.add import Add
 from .src.prod import Prod
@@ -45,4 +71,4 @@ from .src.sde_stationary import sde_RBF,sde_Exponential,sde_RatQuad
 from .src.sde_brownian import sde_Brownian
 from .src.multioutput_kern import MultioutputKern
 from .src.multioutput_derivative_kern import MultioutputDerivativeKern
-from .src.diff_kern import DiffKern
\ No newline at end of file
+from .src.diff_kern import DiffKern
diff --git a/GPy/kern/src/ODE_t.py b/GPy/kern/src/ODE_t.py
index 539330a3..f6530c32 100644
--- a/GPy/kern/src/ODE_t.py
+++ b/GPy/kern/src/ODE_t.py
@@ -20,7 +20,7 @@ class ODE_t(Kern):
                 self.link_parameters(self.a, self.c, self.variance_Yt, self.lengthscale_Yt,self.ubias)
 
         def K(self, X, X2=None):
-                """Compute the covariance matrix between X and X2."""        
+                """Compute the covariance matrix between X and X2."""
                 X,slices = X[:,:-1],index_to_slices(X[:,-1])
                 if X2 is None:
                         X2,slices2 = X,slices
@@ -31,9 +31,9 @@ class ODE_t(Kern):
 
                 tdist = (X[:,0][:,None] - X2[:,0][None,:])**2
                 ttdist = (X[:,0][:,None] - X2[:,0][None,:])
-                
+
                 vyt = self.variance_Yt
-                
+
                 lyt=1/(2*self.lengthscale_Yt)
 
                 a = -self.a
@@ -69,10 +69,10 @@ class ODE_t(Kern):
                 lyt = 1./(2*self.lengthscale_Yt)
 
                 a = -self.a
-                c = self.c        
-                
+                c = self.c
+
                 k1 = (2*lyt )*vyt
-                
+
                 Kdiag = np.zeros(X.shape[0])
                 slices = index_to_slices(X[:,-1])
 
@@ -106,7 +106,7 @@ class ODE_t(Kern):
                 tdist = (X[:,0][:,None] - X2[:,0][None,:])**2
                 ttdist = (X[:,0][:,None] - X2[:,0][None,:])
                 #rdist = [tdist,xdist]
-                
+
                 rd=tdist.shape[0]
 
                 dka = np.zeros([rd,rd])
@@ -146,7 +146,7 @@ class ODE_t(Kern):
                                 elif i==1 and j==1:
                                     dkYdvart[ss1,ss2] = (k1(tdist[ss1,ss2]) + 1. )* kyy(tdist[ss1,ss2])
                                     dkYdlent[ss1,ss2] = vyt*dkyydlyt(tdist[ss1,ss2])*( k1(tdist[ss1,ss2]) + 1. ) +\
-                          			vyt*kyy(tdist[ss1,ss2])*dk1dlyt(tdist[ss1,ss2])
+                                                        vyt*kyy(tdist[ss1,ss2])*dk1dlyt(tdist[ss1,ss2])
                                     dkdubias[ss1,ss2] = 1
                                 else:
                                     dkYdvart[ss1,ss2] = (-k4(ttdist[ss1,ss2])+1)*kyy(tdist[ss1,ss2])
@@ -156,10 +156,10 @@ class ODE_t(Kern):
                                     dkdubias[ss1,ss2] = 0
                                     #dkYdlent[ss1,ss2] = vyt*dkyydlyt(tdist[ss1,ss2])* (-2*lyt*(ttdist[ss1,ss2])+1.)+\
                                     #vyt*kyy(tdist[ss1,ss2])*(-2)*(ttdist[ss1,ss2])
-   
 
                 self.variance_Yt.gradient = np.sum(dkYdvart * dL_dK)
 
                 self.lengthscale_Yt.gradient =  np.sum(dkYdlent*(-0.5*self.lengthscale_Yt**(-2)) * dL_dK)
 
-                self.ubias.gradient = np.sum(dkdubias * dL_dK) 
+                self.ubias.gradient = np.sum(dkdubias * dL_dK)
+
diff --git a/GPy/kern/src/__init__.py b/GPy/kern/src/__init__.py
index 69522e32..2d81d9b6 100644
--- a/GPy/kern/src/__init__.py
+++ b/GPy/kern/src/__init__.py
@@ -1 +1,2 @@
+
 from . import psi_comp
diff --git a/GPy/kern/src/coregionalize.py b/GPy/kern/src/coregionalize.py
index 0c471cb3..d5111c3b 100644
--- a/GPy/kern/src/coregionalize.py
+++ b/GPy/kern/src/coregionalize.py
@@ -20,12 +20,13 @@ class Coregionalize(Kern):
     Covariance function for intrinsic/linear coregionalization models
 
     This covariance has the form:
+
     .. math::
-       \mathbf{B} = \mathbf{W}\mathbf{W}^\top + \text{diag}(kappa)
+       \mathbf{B} = \mathbf{W}\mathbf{W}^\intercal + \mathrm{diag}(kappa)
 
     An intrinsic/linear coregionalization covariance function of the form:
-    .. math::
 
+    .. math::
        k_2(x, y)=\mathbf{B} k(x, y)
 
     it is obtained as the tensor product between a covariance function
diff --git a/GPy/kern/src/coregionalize_cython.c b/GPy/kern/src/coregionalize_cython.c
index 4b46fadc..484fc6f9 100644
--- a/GPy/kern/src/coregionalize_cython.c
+++ b/GPy/kern/src/coregionalize_cython.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.29.2 */
+/* Generated by Cython 0.29.21 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,8 +7,8 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_29_2"
-#define CYTHON_HEX_VERSION 0x001D02F0
+#define CYTHON_ABI "0_29_21"
+#define CYTHON_HEX_VERSION 0x001D15F0
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -310,8 +310,13 @@
   #define __Pyx_DefaultClassType PyClass_Type
 #else
   #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+#if PY_VERSION_HEX >= 0x030800A4 && PY_VERSION_HEX < 0x030800B2
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, 0, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#else
   #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#endif
   #define __Pyx_DefaultClassType PyType_Type
 #endif
 #ifndef Py_TPFLAGS_CHECKTYPES
@@ -346,26 +351,6 @@
 #else
 #define __Pyx_PyFastCFunction_Check(func) 0
 #endif
-#if CYTHON_USE_DICT_VERSIONS
-#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
-    (version_var) = __PYX_GET_DICT_VERSION(dict);\
-    (cache_var) = (value);
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
-        static PY_UINT64_T __pyx_dict_version = 0;\
-        static PyObject *__pyx_dict_cached_value = NULL;\
-        if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
-            (VAR) = __pyx_dict_cached_value;\
-        } else {\
-            (VAR) = __pyx_dict_cached_value = (LOOKUP);\
-            __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
-        }\
-    }
-#else
-#define __PYX_GET_DICT_VERSION(dict)  (0)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
-#endif
 #if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
   #define PyObject_Malloc(s)   PyMem_Malloc(s)
   #define PyObject_Free(p)     PyMem_Free(p)
@@ -398,7 +383,7 @@
 typedef int Py_tss_t;
 static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
   *key = PyThread_create_key();
-  return 0; // PyThread_create_key reports success always
+  return 0;
 }
 static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
   Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
@@ -421,7 +406,7 @@ static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
 static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   return PyThread_get_key_value(*key);
 }
-#endif // TSS (Thread Specific Storage) API
+#endif
 #if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
 #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
 #else
@@ -450,7 +435,11 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
   #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
   #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
+  #if defined(PyUnicode_IS_READY) && defined(PyUnicode_GET_SIZE)
   #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+  #else
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
+  #endif
 #else
   #define CYTHON_PEP393_ENABLED 0
   #define PyUnicode_1BYTE_KIND  1
@@ -499,8 +488,10 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+#ifndef PyObject_Unicode
   #define PyObject_Unicode             PyObject_Str
 #endif
+#endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
   #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
@@ -511,6 +502,13 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
 #ifndef PySet_CheckExact
   #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
 #endif
+#if PY_VERSION_HEX >= 0x030900A4
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SET_SIZE(obj, size)
+#else
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
+#endif
 #if CYTHON_ASSUME_SAFE_MACROS
   #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
 #else
@@ -550,7 +548,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
 #endif
 #if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? ((void)(klass), PyMethod_New(func, self)) : __Pyx_NewRef(func))
 #else
   #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
 #endif
@@ -591,11 +589,10 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __Pyx_truncl truncl
 #endif
 
-
+#define __PYX_MARK_ERR_POS(f_index, lineno) \
+    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
 #define __PYX_ERR(f_index, lineno, Ln_error) \
-{ \
-  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
-}
+    { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }
 
 #ifndef __PYX_EXTERN_C
   #ifdef __cplusplus
@@ -611,7 +608,13 @@ static CYTHON_INLINE float __PYX_NAN() {
 #include <string.h>
 #include <stdio.h>
 #include "numpy/arrayobject.h"
+#include "numpy/ndarrayobject.h"
+#include "numpy/ndarraytypes.h"
+#include "numpy/arrayscalars.h"
 #include "numpy/ufuncobject.h"
+
+    /* NumPy API declarations from "numpy/__init__.pxd" */
+    
 #ifdef _OPENMP
 #include <omp.h>
 #endif /* _OPENMP */
@@ -624,7 +627,8 @@ typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* enc
                 const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
 
 #define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
-#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_UTF8 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT (PY_MAJOR_VERSION >= 3 && __PYX_DEFAULT_STRING_ENCODING_IS_UTF8)
 #define __PYX_DEFAULT_STRING_ENCODING ""
 #define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
 #define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
@@ -894,7 +898,7 @@ typedef struct {
 #endif
 
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":690
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -903,7 +907,7 @@ typedef struct {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":691
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -912,7 +916,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":692
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -921,7 +925,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":693
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -930,7 +934,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":697
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -939,7 +943,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":698
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -948,7 +952,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":699
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -957,7 +961,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":700
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -966,7 +970,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":704
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -975,7 +979,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":705
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -984,7 +988,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":714
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -993,7 +997,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":715
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -1002,7 +1006,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":716
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -1011,7 +1015,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":718
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -1020,7 +1024,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":719
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -1029,7 +1033,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":720
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -1038,7 +1042,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":722
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -1047,7 +1051,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":723
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -1056,7 +1060,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":725
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1065,7 +1069,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":726
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1074,7 +1078,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":727
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1109,7 +1113,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 
 /*--- Type declarations ---*/
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":729
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1118,7 +1122,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":730
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1127,7 +1131,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":731
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1136,7 +1140,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":733
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1258,6 +1262,32 @@ static CYTHON_INLINE void __Pyx_SafeReleaseBuffer(Py_buffer* info);
 static Py_ssize_t __Pyx_minusones[] = { -1, -1, -1, -1, -1, -1, -1, -1 };
 static Py_ssize_t __Pyx_zeros[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
 
+/* PyDictVersioning.proto */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+#define __PYX_DICT_VERSION_INIT  ((PY_UINT64_T) -1)
+#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
+    (version_var) = __PYX_GET_DICT_VERSION(dict);\
+    (cache_var) = (value);
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
+        (VAR) = __pyx_dict_cached_value;\
+    } else {\
+        (VAR) = __pyx_dict_cached_value = (LOOKUP);\
+        __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
+    }\
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj);
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj);
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version);
+#else
+#define __PYX_GET_DICT_VERSION(dict)  (0)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
+#endif
+
 /* GetModuleGlobalName.proto */
 #if CYTHON_USE_DICT_VERSIONS
 #define __Pyx_GetModuleGlobalName(var, name)  {\
@@ -1291,7 +1321,7 @@ static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObje
 #define __Pyx_PyFunction_FastCall(func, args, nargs)\
     __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs);
 #else
 #define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
 #endif
@@ -1369,29 +1399,6 @@ static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject
 #define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
 #endif
 
-/* RaiseException.proto */
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
-
-/* DictGetItem.proto */
-#if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
-static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key);
-#define __Pyx_PyObject_Dict_GetItem(obj, name)\
-    (likely(PyDict_CheckExact(obj)) ?\
-     __Pyx_PyDict_GetItem(obj, name) : PyObject_GetItem(obj, name))
-#else
-#define __Pyx_PyDict_GetItem(d, key) PyObject_GetItem(d, key)
-#define __Pyx_PyObject_Dict_GetItem(obj, name)  PyObject_GetItem(obj, name)
-#endif
-
-/* RaiseTooManyValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
-
-/* RaiseNeedMoreValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
-
-/* RaiseNoneIterError.proto */
-static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
-
 /* GetTopmostException.proto */
 #if CYTHON_USE_EXC_INFO_STACK
 static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate);
@@ -1424,6 +1431,9 @@ static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
 #endif
 
+/* RaiseException.proto */
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
 /* TypeImport.proto */
 #ifndef __PYX_HAVE_RT_ImportType_proto
 #define __PYX_HAVE_RT_ImportType_proto
@@ -1588,9 +1598,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
     #endif
 #endif
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
-
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
@@ -1648,8 +1655,17 @@ static PyTypeObject *__pyx_ptype_5numpy_dtype = 0;
 static PyTypeObject *__pyx_ptype_5numpy_flatiter = 0;
 static PyTypeObject *__pyx_ptype_5numpy_broadcast = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ndarray = 0;
+static PyTypeObject *__pyx_ptype_5numpy_generic = 0;
+static PyTypeObject *__pyx_ptype_5numpy_number = 0;
+static PyTypeObject *__pyx_ptype_5numpy_integer = 0;
+static PyTypeObject *__pyx_ptype_5numpy_signedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_unsignedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_inexact = 0;
+static PyTypeObject *__pyx_ptype_5numpy_floating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_complexfloating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_flexible = 0;
+static PyTypeObject *__pyx_ptype_5numpy_character = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
-static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
 
 /* Module declarations from 'GPy.kern.src.coregionalize_cython' */
 static __Pyx_TypeInfo __Pyx_TypeInfo_double = { "double", NULL, sizeof(double), { 0 }, 0, 'R', 0, 0 };
@@ -1661,8 +1677,6 @@ int __pyx_module_is_main_GPy__kern__src__coregionalize_cython = 0;
 
 /* Implementation of 'GPy.kern.src.coregionalize_cython' */
 static PyObject *__pyx_builtin_range;
-static PyObject *__pyx_builtin_ValueError;
-static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
 static const char __pyx_k_B[] = "B";
 static const char __pyx_k_D[] = "D";
@@ -1688,28 +1702,18 @@ static const char __pyx_k_range[] = "range";
 static const char __pyx_k_zeros[] = "zeros";
 static const char __pyx_k_import[] = "__import__";
 static const char __pyx_k_index2[] = "index2";
-static const char __pyx_k_ValueError[] = "ValueError";
 static const char __pyx_k_ImportError[] = "ImportError";
 static const char __pyx_k_K_symmetric[] = "K_symmetric";
 static const char __pyx_k_dL_dK_small[] = "dL_dK_small";
 static const char __pyx_k_K_asymmetric[] = "K_asymmetric";
-static const char __pyx_k_RuntimeError[] = "RuntimeError";
 static const char __pyx_k_gradient_reduce[] = "gradient_reduce";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
-static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
 static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
-static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
-static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
 static const char __pyx_k_GPy_kern_src_coregionalize_cytho[] = "GPy/kern/src/coregionalize_cython.pyx";
-static const char __pyx_k_Non_native_byte_order_not_suppor[] = "Non-native byte order not supported";
-static const char __pyx_k_ndarray_is_not_Fortran_contiguou[] = "ndarray is not Fortran contiguous";
 static const char __pyx_k_numpy_core_umath_failed_to_impor[] = "numpy.core.umath failed to import";
-static const char __pyx_k_Format_string_allocated_too_shor_2[] = "Format string allocated too short.";
 static const char __pyx_k_GPy_kern_src_coregionalize_cytho_2[] = "GPy.kern.src.coregionalize_cython";
 static PyObject *__pyx_n_s_B;
 static PyObject *__pyx_n_s_D;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor_2;
 static PyObject *__pyx_kp_s_GPy_kern_src_coregionalize_cytho;
 static PyObject *__pyx_n_s_GPy_kern_src_coregionalize_cytho_2;
 static PyObject *__pyx_n_s_ImportError;
@@ -1718,9 +1722,6 @@ static PyObject *__pyx_n_s_K_asymmetric;
 static PyObject *__pyx_n_s_K_symmetric;
 static PyObject *__pyx_n_s_M;
 static PyObject *__pyx_n_s_N;
-static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
-static PyObject *__pyx_n_s_RuntimeError;
-static PyObject *__pyx_n_s_ValueError;
 static PyObject *__pyx_n_s_X;
 static PyObject *__pyx_n_s_X2;
 static PyObject *__pyx_n_s_cline_in_traceback;
@@ -1737,8 +1738,6 @@ static PyObject *__pyx_n_s_m;
 static PyObject *__pyx_n_s_main;
 static PyObject *__pyx_n_s_n;
 static PyObject *__pyx_n_s_name;
-static PyObject *__pyx_kp_u_ndarray_is_not_C_contiguous;
-static PyObject *__pyx_kp_u_ndarray_is_not_Fortran_contiguou;
 static PyObject *__pyx_n_s_np;
 static PyObject *__pyx_n_s_numpy;
 static PyObject *__pyx_kp_s_numpy_core_multiarray_failed_to;
@@ -1746,26 +1745,18 @@ static PyObject *__pyx_kp_s_numpy_core_umath_failed_to_impor;
 static PyObject *__pyx_n_s_range;
 static PyObject *__pyx_n_s_size;
 static PyObject *__pyx_n_s_test;
-static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_n_s_zeros;
 static PyObject *__pyx_pf_3GPy_4kern_3src_20coregionalize_cython_K_symmetric(CYTHON_UNUSED PyObject *__pyx_self, PyArrayObject *__pyx_v_B, PyArrayObject *__pyx_v_X); /* proto */
 static PyObject *__pyx_pf_3GPy_4kern_3src_20coregionalize_cython_2K_asymmetric(CYTHON_UNUSED PyObject *__pyx_self, PyArrayObject *__pyx_v_B, PyArrayObject *__pyx_v_X, PyArrayObject *__pyx_v_X2); /* proto */
 static PyObject *__pyx_pf_3GPy_4kern_3src_20coregionalize_cython_4gradient_reduce(CYTHON_UNUSED PyObject *__pyx_self, int __pyx_v_D, PyArrayObject *__pyx_v_dL_dK, PyArrayObject *__pyx_v_index, PyArrayObject *__pyx_v_index2); /* proto */
-static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
-static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static PyObject *__pyx_tuple_;
 static PyObject *__pyx_tuple__2;
 static PyObject *__pyx_tuple__3;
-static PyObject *__pyx_tuple__4;
 static PyObject *__pyx_tuple__5;
-static PyObject *__pyx_tuple__6;
 static PyObject *__pyx_tuple__7;
-static PyObject *__pyx_tuple__8;
-static PyObject *__pyx_tuple__10;
-static PyObject *__pyx_tuple__12;
-static PyObject *__pyx_codeobj__9;
-static PyObject *__pyx_codeobj__11;
-static PyObject *__pyx_codeobj__13;
+static PyObject *__pyx_codeobj__4;
+static PyObject *__pyx_codeobj__6;
+static PyObject *__pyx_codeobj__8;
 /* Late includes */
 
 /* "GPy/kern/src/coregionalize_cython.pyx":8
@@ -1782,6 +1773,9 @@ static PyMethodDef __pyx_mdef_3GPy_4kern_3src_20coregionalize_cython_1K_symmetri
 static PyObject *__pyx_pw_3GPy_4kern_3src_20coregionalize_cython_1K_symmetric(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyArrayObject *__pyx_v_B = 0;
   PyArrayObject *__pyx_v_X = 0;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("K_symmetric (wrapper)", 0);
@@ -1875,6 +1869,9 @@ static PyObject *__pyx_pf_3GPy_4kern_3src_20coregionalize_cython_K_symmetric(CYT
   __pyx_t_5numpy_int64_t __pyx_t_16;
   Py_ssize_t __pyx_t_17;
   Py_ssize_t __pyx_t_18;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("K_symmetric", 0);
   __pyx_pybuffer_K.pybuffer.buf = NULL;
   __pyx_pybuffer_K.refcount = 0;
@@ -2106,6 +2103,9 @@ static PyObject *__pyx_pw_3GPy_4kern_3src_20coregionalize_cython_3K_asymmetric(P
   PyArrayObject *__pyx_v_B = 0;
   PyArrayObject *__pyx_v_X = 0;
   PyArrayObject *__pyx_v_X2 = 0;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("K_asymmetric (wrapper)", 0);
@@ -2213,6 +2213,9 @@ static PyObject *__pyx_pf_3GPy_4kern_3src_20coregionalize_cython_2K_asymmetric(C
   __pyx_t_5numpy_int64_t __pyx_t_16;
   Py_ssize_t __pyx_t_17;
   Py_ssize_t __pyx_t_18;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("K_asymmetric", 0);
   __pyx_pybuffer_K.pybuffer.buf = NULL;
   __pyx_pybuffer_K.refcount = 0;
@@ -2469,6 +2472,9 @@ static PyObject *__pyx_pw_3GPy_4kern_3src_20coregionalize_cython_5gradient_reduc
   PyArrayObject *__pyx_v_dL_dK = 0;
   PyArrayObject *__pyx_v_index = 0;
   PyArrayObject *__pyx_v_index2 = 0;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("gradient_reduce (wrapper)", 0);
@@ -2586,6 +2592,9 @@ static PyObject *__pyx_pf_3GPy_4kern_3src_20coregionalize_cython_4gradient_reduc
   Py_ssize_t __pyx_t_16;
   __pyx_t_5numpy_int64_t __pyx_t_17;
   __pyx_t_5numpy_int64_t __pyx_t_18;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("gradient_reduce", 0);
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 static int __Pyx_modinit_type_import_code(void) {
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+   if (!__pyx_ptype_5numpy_unsignedinteger) __PYX_ERR(1, 779, __pyx_L1_error)
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+   if (!__pyx_ptype_5numpy_inexact) __PYX_ERR(1, 781, __pyx_L1_error)
+  __pyx_ptype_5numpy_floating = __Pyx_ImportType(__pyx_t_1, "numpy", "floating", sizeof(PyObject), __Pyx_ImportType_CheckSize_Warn);
+   if (!__pyx_ptype_5numpy_floating) __PYX_ERR(1, 783, __pyx_L1_error)
+  __pyx_ptype_5numpy_complexfloating = __Pyx_ImportType(__pyx_t_1, "numpy", "complexfloating", sizeof(PyObject), __Pyx_ImportType_CheckSize_Warn);
+   if (!__pyx_ptype_5numpy_complexfloating) __PYX_ERR(1, 785, __pyx_L1_error)
+  __pyx_ptype_5numpy_flexible = __Pyx_ImportType(__pyx_t_1, "numpy", "flexible", sizeof(PyObject), __Pyx_ImportType_CheckSize_Warn);
+   if (!__pyx_ptype_5numpy_flexible) __PYX_ERR(1, 787, __pyx_L1_error)
+  __pyx_ptype_5numpy_character = __Pyx_ImportType(__pyx_t_1, "numpy", "character", sizeof(PyObject), __Pyx_ImportType_CheckSize_Warn);
+   if (!__pyx_ptype_5numpy_character) __PYX_ERR(1, 789, __pyx_L1_error)
+  __pyx_ptype_5numpy_ufunc = __Pyx_ImportType(__pyx_t_1, "numpy", "ufunc", sizeof(PyUFuncObject), __Pyx_ImportType_CheckSize_Ignore);
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 }
 
 
-#if PY_MAJOR_VERSION < 3
-#ifdef CYTHON_NO_PYINIT_EXPORT
-#define __Pyx_PyMODINIT_FUNC void
-#else
+#ifndef CYTHON_NO_PYINIT_EXPORT
 #define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
+#elif PY_MAJOR_VERSION < 3
+#ifdef __cplusplus
+#define __Pyx_PyMODINIT_FUNC extern "C" void
+#else
+#define __Pyx_PyMODINIT_FUNC void
 #endif
 #else
-#ifdef CYTHON_NO_PYINIT_EXPORT
-#define __Pyx_PyMODINIT_FUNC PyObject *
+#ifdef __cplusplus
+#define __Pyx_PyMODINIT_FUNC extern "C" PyObject *
 #else
-#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
+#define __Pyx_PyMODINIT_FUNC PyObject *
 #endif
 #endif
 
@@ -5660,6 +4228,9 @@ static CYTHON_SMALL_CODE int __pyx_pymod_exec_coregionalize_cython(PyObject *__p
 #endif
 {
   PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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-  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
-  #if CYTHON_COMPILING_IN_PYPY
   Py_INCREF(__pyx_b);
-  #endif
+  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
+  Py_INCREF(__pyx_cython_runtime);
   if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
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- *         raise ImportError("numpy.core.umath failed to import")
+  /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":1016
  * 
- * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
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- *         _import_umath()
+ * 
+ * cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) nogil:             # <<<<<<<<<<<<<<
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   /*--- Wrapped vars code ---*/
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         name = first_kw_arg;
         #if PY_MAJOR_VERSION < 3
-        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+        if (likely(PyString_Check(key))) {
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-                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
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                     #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
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       return -1;
     } else {
         count = *t++ - '0';
-        while (*t >= '0' && *t < '9') {
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             count += *t++ - '0';
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@@ -6131,6 +4701,7 @@ static void __Pyx_BufFmt_RaiseUnexpectedChar(char ch) {
 }
 static const char* __Pyx_BufFmt_DescribeTypeChar(char ch, int is_complex) {
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     case 'B': return "'unsigned char'";
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 static size_t __Pyx_BufFmt_TypeCharToNativeSize(char ch, int is_complex) {
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         return 'I';
-    case 'B': case 'H': case 'I': case 'L': case 'Q':
+    case '?': case 'B': case 'H': case 'I': case 'L': case 'Q':
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         return (is_complex ? 'C' : 'R');
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-    int i = 0, number;
-    int ndim = ctx->head->field->type->ndim;
-;
+    int i = 0, number, ndim;
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         return NULL;
     }
     if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
+    ndim = ctx->head->field->type->ndim;
     while (*ts && *ts != ')') {
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-      case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
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-        if (ctx->enc_type == *ts && got_Z == ctx->is_complex &&
-            ctx->enc_packmode == ctx->new_packmode) {
+        if ((ctx->enc_type == *ts) && (got_Z == ctx->is_complex) &&
+            (ctx->enc_packmode == ctx->new_packmode) && (!ctx->is_valid_array)) {
           ctx->enc_count += ctx->new_count;
           ctx->new_count = 1;
           got_Z = 0;
@@ -6610,7 +5180,7 @@ static int __Pyx__GetBufferAndValidate(
     __Pyx_BufFmt_Init(&ctx, stack, dtype);
     if (!__Pyx_BufFmt_CheckString(&ctx, buf->format)) goto fail;
   }
-  if (unlikely((unsigned)buf->itemsize != dtype->size)) {
+  if (unlikely((size_t)buf->itemsize != dtype->size)) {
     PyErr_Format(PyExc_ValueError,
       "Item size of buffer (%" CYTHON_FORMAT_SSIZE_T "d byte%s) does not match size of '%s' (%" CYTHON_FORMAT_SSIZE_T "d byte%s)",
       buf->itemsize, (buf->itemsize > 1) ? "s" : "",
@@ -6624,6 +5194,32 @@ fail:;
   return -1;
 }
 
+/* PyDictVersioning */
+  #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
+    PyObject **dictptr = NULL;
+    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
+    if (offset) {
+#if CYTHON_COMPILING_IN_CPYTHON
+        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
+#else
+        dictptr = _PyObject_GetDictPtr(obj);
+#endif
+    }
+    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
+}
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
+        return 0;
+    return obj_dict_version == __Pyx_get_object_dict_version(obj);
+}
+#endif
+
 /* GetModuleGlobalName */
   #if CYTHON_USE_DICT_VERSIONS
 static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
@@ -6713,7 +5309,7 @@ static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args
     return result;
 }
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
     PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
     PyObject *globals = PyFunction_GET_GLOBALS(func);
     PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
@@ -6784,12 +5380,12 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
     }
 #if PY_MAJOR_VERSION >= 3
     result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, kwdefs, closure);
 #else
     result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, closure);
 #endif
@@ -6947,6 +5543,161 @@ static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject
 }
 #endif
 
+/* GetTopmostException */
+  #if CYTHON_USE_EXC_INFO_STACK
+static _PyErr_StackItem *
+__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
+{
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
+           exc_info->previous_item != NULL)
+    {
+        exc_info = exc_info->previous_item;
+    }
+    return exc_info;
+}
+#endif
+
+/* SaveResetException */
+  #if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    *type = exc_info->exc_type;
+    *value = exc_info->exc_value;
+    *tb = exc_info->exc_traceback;
+    #else
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    #endif
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+}
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = type;
+    exc_info->exc_value = value;
+    exc_info->exc_traceback = tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+}
+#endif
+
+/* PyErrExceptionMatches */
+  #if CYTHON_FAST_THREAD_STATE
+static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
+    PyObject *exc_type = tstate->curexc_type;
+    if (exc_type == err) return 1;
+    if (unlikely(!exc_type)) return 0;
+    if (unlikely(PyTuple_Check(err)))
+        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
+    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
+}
+#endif
+
+/* GetException */
+  #if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+#endif
+{
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
+#endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
+#endif
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
+    }
+    #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if CYTHON_USE_EXC_INFO_STACK
+    {
+        _PyErr_StackItem *exc_info = tstate->exc_info;
+        tmp_type = exc_info->exc_type;
+        tmp_value = exc_info->exc_value;
+        tmp_tb = exc_info->exc_traceback;
+        exc_info->exc_type = local_type;
+        exc_info->exc_value = local_value;
+        exc_info->exc_traceback = local_tb;
+    }
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
+
 /* RaiseException */
   #if PY_MAJOR_VERSION < 3
 static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
@@ -7106,203 +5857,6 @@ bad:
 }
 #endif
 
-/* DictGetItem */
-  #if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
-static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key) {
-    PyObject *value;
-    value = PyDict_GetItemWithError(d, key);
-    if (unlikely(!value)) {
-        if (!PyErr_Occurred()) {
-            if (unlikely(PyTuple_Check(key))) {
-                PyObject* args = PyTuple_Pack(1, key);
-                if (likely(args)) {
-                    PyErr_SetObject(PyExc_KeyError, args);
-                    Py_DECREF(args);
-                }
-            } else {
-                PyErr_SetObject(PyExc_KeyError, key);
-            }
-        }
-        return NULL;
-    }
-    Py_INCREF(value);
-    return value;
-}
-#endif
-
-/* RaiseTooManyValuesToUnpack */
-  static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
-    PyErr_Format(PyExc_ValueError,
-                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
-}
-
-/* RaiseNeedMoreValuesToUnpack */
-  static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
-    PyErr_Format(PyExc_ValueError,
-                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
-                 index, (index == 1) ? "" : "s");
-}
-
-/* RaiseNoneIterError */
-  static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
-}
-
-/* GetTopmostException */
-  #if CYTHON_USE_EXC_INFO_STACK
-static _PyErr_StackItem *
-__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
-{
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
-           exc_info->previous_item != NULL)
-    {
-        exc_info = exc_info->previous_item;
-    }
-    return exc_info;
-}
-#endif
-
-/* SaveResetException */
-  #if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
-    *type = exc_info->exc_type;
-    *value = exc_info->exc_value;
-    *tb = exc_info->exc_traceback;
-    #else
-    *type = tstate->exc_type;
-    *value = tstate->exc_value;
-    *tb = tstate->exc_traceback;
-    #endif
-    Py_XINCREF(*type);
-    Py_XINCREF(*value);
-    Py_XINCREF(*tb);
-}
-static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    tmp_type = exc_info->exc_type;
-    tmp_value = exc_info->exc_value;
-    tmp_tb = exc_info->exc_traceback;
-    exc_info->exc_type = type;
-    exc_info->exc_value = value;
-    exc_info->exc_traceback = tb;
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = type;
-    tstate->exc_value = value;
-    tstate->exc_traceback = tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-}
-#endif
-
-/* PyErrExceptionMatches */
-  #if CYTHON_FAST_THREAD_STATE
-static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    n = PyTuple_GET_SIZE(tuple);
-#if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
-    }
-#endif
-    for (i=0; i<n; i++) {
-        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
-    }
-    return 0;
-}
-static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
-    PyObject *exc_type = tstate->curexc_type;
-    if (exc_type == err) return 1;
-    if (unlikely(!exc_type)) return 0;
-    if (unlikely(PyTuple_Check(err)))
-        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
-    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
-}
-#endif
-
-/* GetException */
-  #if CYTHON_FAST_THREAD_STATE
-static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
-#else
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
-#endif
-{
-    PyObject *local_type, *local_value, *local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    local_type = tstate->curexc_type;
-    local_value = tstate->curexc_value;
-    local_tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-#else
-    PyErr_Fetch(&local_type, &local_value, &local_tb);
-#endif
-    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-#if CYTHON_FAST_THREAD_STATE
-    if (unlikely(tstate->curexc_type))
-#else
-    if (unlikely(PyErr_Occurred()))
-#endif
-        goto bad;
-    #if PY_MAJOR_VERSION >= 3
-    if (local_tb) {
-        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
-            goto bad;
-    }
-    #endif
-    Py_XINCREF(local_tb);
-    Py_XINCREF(local_type);
-    Py_XINCREF(local_value);
-    *type = local_type;
-    *value = local_value;
-    *tb = local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    #if CYTHON_USE_EXC_INFO_STACK
-    {
-        _PyErr_StackItem *exc_info = tstate->exc_info;
-        tmp_type = exc_info->exc_type;
-        tmp_value = exc_info->exc_value;
-        tmp_tb = exc_info->exc_traceback;
-        exc_info->exc_type = local_type;
-        exc_info->exc_value = local_value;
-        exc_info->exc_traceback = local_tb;
-    }
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = local_type;
-    tstate->exc_value = local_value;
-    tstate->exc_traceback = local_tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-#else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
-#endif
-    return 0;
-bad:
-    *type = 0;
-    *value = 0;
-    *tb = 0;
-    Py_XDECREF(local_type);
-    Py_XDECREF(local_value);
-    Py_XDECREF(local_tb);
-    return -1;
-}
-
 /* TypeImport */
   #ifndef __PYX_HAVE_RT_ImportType
 #define __PYX_HAVE_RT_ImportType
@@ -7394,7 +5948,7 @@ bad:
     {
         #if PY_MAJOR_VERSION >= 3
         if (level == -1) {
-            if (strchr(__Pyx_MODULE_NAME, '.')) {
+            if ((1) && (strchr(__Pyx_MODULE_NAME, '.'))) {
                 module = PyImport_ImportModuleLevelObject(
                     name, global_dict, empty_dict, list, 1);
                 if (!module) {
@@ -7431,7 +5985,7 @@ bad:
 
 /* CLineInTraceback */
   #ifndef CYTHON_CLINE_IN_TRACEBACK
-static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
+static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int c_line) {
     PyObject *use_cline;
     PyObject *ptype, *pvalue, *ptraceback;
 #if CYTHON_COMPILING_IN_CPYTHON
@@ -7535,7 +6089,7 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
     if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
         int new_max = __pyx_code_cache.max_count + 64;
         entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
-            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+            __pyx_code_cache.entries, ((size_t)new_max) * sizeof(__Pyx_CodeObjectCacheEntry));
         if (unlikely(!entries)) {
             return;
         }
@@ -7639,7 +6193,6 @@ bad:
 #if PY_MAJOR_VERSION < 3
 static int __Pyx_GetBuffer(PyObject *obj, Py_buffer *view, int flags) {
     if (PyObject_CheckBuffer(obj)) return PyObject_GetBuffer(obj, view, flags);
-        if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) return __pyx_pw_5numpy_7ndarray_1__getbuffer__(obj, view, flags);
     PyErr_Format(PyExc_TypeError, "'%.200s' does not have the buffer interface", Py_TYPE(obj)->tp_name);
     return -1;
 }
@@ -7651,7 +6204,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
         return;
     }
     if ((0)) {}
-        else if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) __pyx_pw_5numpy_7ndarray_3__releasebuffer__(obj, view);
     view->obj = NULL;
     Py_DECREF(obj);
 }
@@ -7764,13 +6316,13 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                 return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 float r = b.imag / b.real;
-                float s = 1.0 / (b.real + b.imag * r);
+                float s = (float)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_float_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             float r = b.real / b.imag;
-            float s = 1.0 / (b.imag + b.real * r);
+            float s = (float)(1.0) / (b.imag + b.real * r);
             return __pyx_t_float_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -7828,7 +6380,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_float(a, a);
                         return __Pyx_c_prod_float(a, a);
                     case 3:
                         z = __Pyx_c_prod_float(a, a);
@@ -7850,7 +6401,7 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2f(0, -1);
+                    theta = atan2f(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_float(a);
@@ -7919,13 +6470,13 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                 return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 double r = b.imag / b.real;
-                double s = 1.0 / (b.real + b.imag * r);
+                double s = (double)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_double_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             double r = b.real / b.imag;
-            double s = 1.0 / (b.imag + b.real * r);
+            double s = (double)(1.0) / (b.imag + b.real * r);
             return __pyx_t_double_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -7983,7 +6534,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_double(a, a);
                         return __Pyx_c_prod_double(a, a);
                     case 3:
                         z = __Pyx_c_prod_double(a, a);
@@ -8005,7 +6555,7 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2(0, -1);
+                    theta = atan2(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_double(a);
@@ -8021,37 +6571,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
     #endif
 #endif
 
-/* CIntToPy */
-  static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value) {
-    const enum NPY_TYPES neg_one = (enum NPY_TYPES) ((enum NPY_TYPES) 0 - (enum NPY_TYPES) 1), const_zero = (enum NPY_TYPES) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(enum NPY_TYPES) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(enum NPY_TYPES) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(enum NPY_TYPES),
-                                     little, !is_unsigned);
-    }
-}
-
 /* CIntFromPy */
   static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
diff --git a/GPy/kern/src/grid_kerns.py b/GPy/kern/src/grid_kerns.py
index ef18f1a9..9f153c27 100644
--- a/GPy/kern/src/grid_kerns.py
+++ b/GPy/kern/src/grid_kerns.py
@@ -10,67 +10,67 @@ from paramz.caching import Cache_this
 
 class GridKern(Stationary):
 
-	def __init__(self, input_dim, variance, lengthscale, ARD, active_dims, name, originalDimensions, useGPU=False):
-		super(GridKern, self).__init__(input_dim, variance, lengthscale, ARD, active_dims, name, useGPU=useGPU)
-		self.originalDimensions = originalDimensions
+    def __init__(self, input_dim, variance, lengthscale, ARD, active_dims, name, originalDimensions, useGPU=False):
+        super(GridKern, self).__init__(input_dim, variance, lengthscale, ARD, active_dims, name, useGPU=useGPU)
+        self.originalDimensions = originalDimensions
 
-	@Cache_this(limit=3, ignore_args=())
-	def dKd_dVar(self, X, X2=None):
-		"""
-		Derivative of Kernel function wrt variance applied on inputs X and X2.
-		In the stationary case there is an inner function depending on the
-		distances from X to X2, called r.
+    @Cache_this(limit=3, ignore_args=())
+    def dKd_dVar(self, X, X2=None):
+        """
+        Derivative of Kernel function wrt variance applied on inputs X and X2.
+        In the stationary case there is an inner function depending on the
+        distances from X to X2, called r.
 
-		dKd_dVar(X, X2) = dKdVar_of_r((X-X2)**2)
-		"""
-		r = self._scaled_dist(X, X2)
-		return self.dKdVar_of_r(r)
+        dKd_dVar(X, X2) = dKdVar_of_r((X-X2)**2)
+        """
+        r = self._scaled_dist(X, X2)
+        return self.dKdVar_of_r(r)
 
-	@Cache_this(limit=3, ignore_args=())
-	def dKd_dLen(self, X, dimension, lengthscale, X2=None):
-		"""
-		Derivate of Kernel function wrt lengthscale applied on inputs X and X2.
-		In the stationary case there is an inner function depending on the
-		distances from X to X2, called r.
+    @Cache_this(limit=3, ignore_args=())
+    def dKd_dLen(self, X, dimension, lengthscale, X2=None):
+        """
+        Derivate of Kernel function wrt lengthscale applied on inputs X and X2.
+        In the stationary case there is an inner function depending on the
+        distances from X to X2, called r.
 
-		dKd_dLen(X, X2) = dKdLen_of_r((X-X2)**2)
-		"""
-		r = self._scaled_dist(X, X2)
-		return self.dKdLen_of_r(r, dimension, lengthscale)
+        dKd_dLen(X, X2) = dKdLen_of_r((X-X2)**2)
+        """
+        r = self._scaled_dist(X, X2)
+        return self.dKdLen_of_r(r, dimension, lengthscale)
 
 class GridRBF(GridKern):
-	"""
-	Similar to regular RBF but supplemented with methods required for Gaussian grid regression
-	Radial Basis Function kernel, aka squared-exponential, exponentiated quadratic or Gaussian kernel:
+    """
+    Similar to regular RBF but supplemented with methods required for Gaussian grid regression
+    Radial Basis Function kernel, aka squared-exponential, exponentiated quadratic or Gaussian kernel:
 
-	.. math::
+    .. math::
 
-	   k(r) = \sigma^2 \exp \\bigg(- \\frac{1}{2} r^2 \\bigg)
+       k(r) = \sigma^2 \exp \\bigg(- \\frac{1}{2} r^2 \\bigg)
 
-	"""
-	_support_GPU = True
-	def __init__(self, input_dim, variance=1., lengthscale=None, ARD=False, active_dims=None, name='gridRBF', originalDimensions=1, useGPU=False):
-		super(GridRBF, self).__init__(input_dim, variance, lengthscale, ARD, active_dims, name, originalDimensions, useGPU=useGPU)
+    """
+    _support_GPU = True
+    def __init__(self, input_dim, variance=1., lengthscale=None, ARD=False, active_dims=None, name='gridRBF', originalDimensions=1, useGPU=False):
+        super(GridRBF, self).__init__(input_dim, variance, lengthscale, ARD, active_dims, name, originalDimensions, useGPU=useGPU)
 
-	def K_of_r(self, r):
-		return (self.variance**(float(1)/self.originalDimensions)) * np.exp(-0.5 *  r**2)
+    def K_of_r(self, r):
+        return (self.variance**(float(1)/self.originalDimensions)) * np.exp(-0.5 *  r**2)
 
-	def dKdVar_of_r(self, r):
-		"""
-		Compute derivative of kernel wrt variance
-		"""
-		return np.exp(-0.5 * r**2)
+    def dKdVar_of_r(self, r):
+        """
+        Compute derivative of kernel wrt variance
+        """
+        return np.exp(-0.5 * r**2)
 
-	def dKdLen_of_r(self, r, dimCheck, lengthscale):
-		"""
-		Compute derivative of kernel for dimension wrt lengthscale
-		Computation of derivative changes when lengthscale corresponds to
-		the dimension of the kernel whose derivate is being computed. 
-		"""
-		if (dimCheck == True):
-			return (self.variance**(float(1)/self.originalDimensions)) * np.exp(-0.5 * r**2) * (r**2) / (lengthscale**(float(1)/self.originalDimensions))
-		else:
-			return (self.variance**(float(1)/self.originalDimensions)) * np.exp(-0.5 * r**2) / (lengthscale**(float(1)/self.originalDimensions))
+    def dKdLen_of_r(self, r, dimCheck, lengthscale):
+        """
+        Compute derivative of kernel for dimension wrt lengthscale
+        Computation of derivative changes when lengthscale corresponds to
+        the dimension of the kernel whose derivate is being computed.
+        """
+        if (dimCheck == True):
+            return (self.variance**(float(1)/self.originalDimensions)) * np.exp(-0.5 * r**2) * (r**2) / (lengthscale**(float(1)/self.originalDimensions))
+        else:
+            return (self.variance**(float(1)/self.originalDimensions)) * np.exp(-0.5 * r**2) / (lengthscale**(float(1)/self.originalDimensions))
 
-	def dK_dr(self, r):
-		return -r*self.K_of_r(r)
\ No newline at end of file
+    def dK_dr(self, r):
+        return -r*self.K_of_r(r)
diff --git a/GPy/kern/src/kern.py b/GPy/kern/src/kern.py
index 362ac418..b8597c73 100644
--- a/GPy/kern/src/kern.py
+++ b/GPy/kern/src/kern.py
@@ -434,7 +434,14 @@ class CombinationKernel(Kern):
             [setitem(i_s, (i, k._all_dims_active), k.input_sensitivity(summarize)) for i, k in enumerate(parts)]
             return i_s
         else:
-            raise NotImplementedError("Choose the kernel you want to get the sensitivity for. You need to override the default behaviour for getting the input sensitivity to be able to get the input sensitivity. For sum kernel it is the sum of all sensitivities, TODO: product kernel? Other kernels?, also TODO: shall we return all the sensitivities here in the combination kernel? So we can combine them however we want? This could lead to just plot all the sensitivities here...")
+            raise NotImplementedError("Choose the kernel you want to get the sensitivity for. "
+                                      "You need to override the default behaviour for getting "
+                                      "the input sensitivity to be able to get the input sensitivity. "
+                                      "For sum kernel it is the sum of all sensitivities, "
+                                      "TODO: product kernel? Other kernels?, also "
+                                      "TODO: shall we return all the sensitivities here in the combination "
+                                      "kernel? So we can combine them however we want? "
+                                      "This could lead to just plot all the sensitivities here...")
 
     def _check_active_dims(self, X):
         return
diff --git a/GPy/kern/src/psi_comp/ssrbf_psi_gpucomp.py b/GPy/kern/src/psi_comp/ssrbf_psi_gpucomp.py
index 488e9e22..f626c2d5 100644
--- a/GPy/kern/src/psi_comp/ssrbf_psi_gpucomp.py
+++ b/GPy/kern/src/psi_comp/ssrbf_psi_gpucomp.py
@@ -448,12 +448,34 @@ class PSICOMP_SSRBF_GPU(PSICOMP_RBF):
             dL_dpsi0_sum = dL_dpsi0.sum()
 
         self.reset_derivative()
-        # t=self.g_psi1compDer(dvar_gpu,dl_gpu,dZ_gpu,dmu_gpu,dS_gpu,dL_dpsi1_gpu,psi1_gpu, np.float64(variance),l_gpu,Z_gpu,mu_gpu,S_gpu, np.int32(N), np.int32(M), np.int32(Q), block=(self.threadnum,1,1), grid=(self.blocknum,1),time_kernel=True)
+        # t=self.g_psi1compDer(dvar_gpu,dl_gpu,dZ_gpu,dmu_gpu,dS_gpu,dL_dpsi1_gpu,psi1_gpu,
+        #                      np.float64(variance),l_gpu,Z_gpu,mu_gpu,S_gpu, np.int32(N),
+        #                      np.int32(M), np.int32(Q), block=(self.threadnum,1,1),
+        #                      grid=(self.blocknum,1),time_kernel=True)
         # print 'g_psi1compDer '+str(t)
-        # t=self.g_psi2compDer(dvar_gpu,dl_gpu,dZ_gpu,dmu_gpu,dS_gpu,dL_dpsi2_gpu,psi2n_gpu, np.float64(variance),l_gpu,Z_gpu,mu_gpu,S_gpu, np.int32(N), np.int32(M), np.int32(Q), block=(self.threadnum,1,1), grid=(self.blocknum,1),time_kernel=True)
+        # t=self.g_psi2compDer(dvar_gpu,dl_gpu,dZ_gpu,dmu_gpu,dS_gpu,dL_dpsi2_gpu,psi2n_gpu,
+        #                      np.float64(variance),l_gpu,Z_gpu,mu_gpu,S_gpu, np.int32(N),
+        #                      np.int32(M), np.int32(Q), block=(self.threadnum,1,1),
+        #                      grid=(self.blocknum,1),time_kernel=True)
         # print 'g_psi2compDer '+str(t)
-        self.g_psi1compDer.prepared_call((self.blocknum,1),(self.threadnum,1,1),dvar_gpu.gpudata,dl_gpu.gpudata,dZ_gpu.gpudata,dmu_gpu.gpudata,dS_gpu.gpudata,dgamma_gpu.gpudata,dL_dpsi1_gpu.gpudata,psi1_gpu.gpudata, log_denom1_gpu.gpudata, log_gamma_gpu.gpudata, log_gamma1_gpu.gpudata, np.float64(variance),l_gpu.gpudata,Z_gpu.gpudata,mu_gpu.gpudata,S_gpu.gpudata,gamma_gpu.gpudata,np.int32(N), np.int32(M), np.int32(Q))
-        self.g_psi2compDer.prepared_call((self.blocknum,1),(self.threadnum,1,1),dvar_gpu.gpudata,dl_gpu.gpudata,dZ_gpu.gpudata,dmu_gpu.gpudata,dS_gpu.gpudata,dgamma_gpu.gpudata,dL_dpsi2_gpu.gpudata,psi2n_gpu.gpudata, log_denom2_gpu.gpudata, log_gamma_gpu.gpudata, log_gamma1_gpu.gpudata, np.float64(variance),l_gpu.gpudata,Z_gpu.gpudata,mu_gpu.gpudata,S_gpu.gpudata,gamma_gpu.gpudata,np.int32(N), np.int32(M), np.int32(Q))
+        self.g_psi1compDer.prepared_call((self.blocknum,1), (self.threadnum,1,1),
+                                         dvar_gpu.gpudata, dl_gpu.gpudata, dZ_gpu.gpudata,
+                                         dmu_gpu.gpudata, dS_gpu.gpudata, dgamma_gpu.gpudata,
+                                         dL_dpsi1_gpu.gpudata, psi1_gpu.gpudata,
+                                         log_denom1_gpu.gpudata, log_gamma_gpu.gpudata,
+                                         log_gamma1_gpu.gpudata, np.float64(variance),
+                                         l_gpu.gpudata, Z_gpu.gpudata, mu_gpu.gpudata,
+                                         S_gpu.gpudata, gamma_gpu.gpudata, np.int32(N),
+                                         np.int32(M), np.int32(Q))
+        self.g_psi2compDer.prepared_call((self.blocknum,1), (self.threadnum,1,1),
+                                         dvar_gpu.gpudata, dl_gpu.gpudata, dZ_gpu.gpudata,
+                                         dmu_gpu.gpudata, dS_gpu.gpudata, dgamma_gpu.gpudata,
+                                         dL_dpsi2_gpu.gpudata, psi2n_gpu.gpudata,
+                                         log_denom2_gpu.gpudata, log_gamma_gpu.gpudata,
+                                         log_gamma1_gpu.gpudata, np.float64(variance),
+                                         l_gpu.gpudata, Z_gpu.gpudata, mu_gpu.gpudata,
+                                         S_gpu.gpudata, gamma_gpu.gpudata, np.int32(N),
+                                         np.int32(M), np.int32(Q))
 
         dL_dvar = dL_dpsi0_sum + gpuarray.sum(dvar_gpu).get()
         sum_axis(grad_mu_gpu,dmu_gpu,N*Q,self.blocknum)
@@ -468,7 +490,6 @@ class PSICOMP_SSRBF_GPU(PSICOMP_RBF):
             dL_dlengscale = grad_l_gpu.get()
         else:
             dL_dlengscale = gpuarray.sum(dl_gpu).get()
-            
-        return dL_dvar, dL_dlengscale, dL_dZ, dL_dmu, dL_dS, dL_dgamma
-    
+
+        return dL_dvar, dL_dlengscale, dL_dZ, dL_dmu, dL_dS, dL_dgamma
 
diff --git a/GPy/kern/src/stationary.py b/GPy/kern/src/stationary.py
index 888320a0..527bb9bb 100644
--- a/GPy/kern/src/stationary.py
+++ b/GPy/kern/src/stationary.py
@@ -412,7 +412,6 @@ class Exponential(Stationary):
 #        return (F, L, Qc, H, Pinf)
 
 
-
 class OU(Stationary):
     """
     OU kernel:
@@ -426,6 +425,23 @@ class OU(Stationary):
     def __init__(self, input_dim, variance=1., lengthscale=None, ARD=False, active_dims=None, name='OU'):
         super(OU, self).__init__(input_dim, variance, lengthscale, ARD, active_dims, name)
 
+    def to_dict(self):
+        """
+        Convert the object into a json serializable dictionary.
+
+        Note: It uses the private method _save_to_input_dict of the parent.
+
+        :return dict: json serializable dictionary containing the needed information to instantiate the object
+        """
+        input_dict = super(OU, self)._save_to_input_dict()
+        input_dict["class"] = "GPy.kern.OU"
+        return input_dict
+
+    @staticmethod
+    def _build_from_input_dict(kernel_class, input_dict):
+        useGPU = input_dict.pop('useGPU', None)
+        return OU(**input_dict)
+
     def K_of_r(self, r):
         return self.variance * np.exp(-r)
 
diff --git a/GPy/kern/src/stationary_cython.c b/GPy/kern/src/stationary_cython.c
index 4a1bb32d..9ecdaf9d 100644
--- a/GPy/kern/src/stationary_cython.c
+++ b/GPy/kern/src/stationary_cython.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.29.2 */
+/* Generated by Cython 0.29.21 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,8 +7,8 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_29_2"
-#define CYTHON_HEX_VERSION 0x001D02F0
+#define CYTHON_ABI "0_29_21"
+#define CYTHON_HEX_VERSION 0x001D15F0
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -310,8 +310,13 @@
   #define __Pyx_DefaultClassType PyClass_Type
 #else
   #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+#if PY_VERSION_HEX >= 0x030800A4 && PY_VERSION_HEX < 0x030800B2
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, 0, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#else
   #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#endif
   #define __Pyx_DefaultClassType PyType_Type
 #endif
 #ifndef Py_TPFLAGS_CHECKTYPES
@@ -346,26 +351,6 @@
 #else
 #define __Pyx_PyFastCFunction_Check(func) 0
 #endif
-#if CYTHON_USE_DICT_VERSIONS
-#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
-    (version_var) = __PYX_GET_DICT_VERSION(dict);\
-    (cache_var) = (value);
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
-        static PY_UINT64_T __pyx_dict_version = 0;\
-        static PyObject *__pyx_dict_cached_value = NULL;\
-        if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
-            (VAR) = __pyx_dict_cached_value;\
-        } else {\
-            (VAR) = __pyx_dict_cached_value = (LOOKUP);\
-            __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
-        }\
-    }
-#else
-#define __PYX_GET_DICT_VERSION(dict)  (0)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
-#endif
 #if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
   #define PyObject_Malloc(s)   PyMem_Malloc(s)
   #define PyObject_Free(p)     PyMem_Free(p)
@@ -398,7 +383,7 @@
 typedef int Py_tss_t;
 static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
   *key = PyThread_create_key();
-  return 0; // PyThread_create_key reports success always
+  return 0;
 }
 static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
   Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
@@ -421,7 +406,7 @@ static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
 static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   return PyThread_get_key_value(*key);
 }
-#endif // TSS (Thread Specific Storage) API
+#endif
 #if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
 #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
 #else
@@ -450,7 +435,11 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
   #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
   #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
+  #if defined(PyUnicode_IS_READY) && defined(PyUnicode_GET_SIZE)
   #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+  #else
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
+  #endif
 #else
   #define CYTHON_PEP393_ENABLED 0
   #define PyUnicode_1BYTE_KIND  1
@@ -499,8 +488,10 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+#ifndef PyObject_Unicode
   #define PyObject_Unicode             PyObject_Str
 #endif
+#endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
   #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
@@ -511,6 +502,13 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
 #ifndef PySet_CheckExact
   #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
 #endif
+#if PY_VERSION_HEX >= 0x030900A4
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SET_SIZE(obj, size)
+#else
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
+#endif
 #if CYTHON_ASSUME_SAFE_MACROS
   #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
 #else
@@ -550,7 +548,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
 #endif
 #if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? ((void)(klass), PyMethod_New(func, self)) : __Pyx_NewRef(func))
 #else
   #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
 #endif
@@ -591,11 +589,10 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __Pyx_truncl truncl
 #endif
 
-
+#define __PYX_MARK_ERR_POS(f_index, lineno) \
+    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
 #define __PYX_ERR(f_index, lineno, Ln_error) \
-{ \
-  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
-}
+    { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }
 
 #ifndef __PYX_EXTERN_C
   #ifdef __cplusplus
@@ -611,7 +608,13 @@ static CYTHON_INLINE float __PYX_NAN() {
 #include <string.h>
 #include <stdio.h>
 #include "numpy/arrayobject.h"
+#include "numpy/ndarrayobject.h"
+#include "numpy/ndarraytypes.h"
+#include "numpy/arrayscalars.h"
 #include "numpy/ufuncobject.h"
+
+    /* NumPy API declarations from "numpy/__init__.pxd" */
+    
 #include "stationary_utils.h"
 #include "pythread.h"
 #include <stdlib.h>
@@ -628,7 +631,8 @@ typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* enc
                 const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
 
 #define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
-#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_UTF8 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT (PY_MAJOR_VERSION >= 3 && __PYX_DEFAULT_STRING_ENCODING_IS_UTF8)
 #define __PYX_DEFAULT_STRING_ENCODING ""
 #define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
 #define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
@@ -959,7 +963,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":690
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -968,7 +972,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":691
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -977,7 +981,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":692
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -986,7 +990,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":693
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -995,7 +999,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":697
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -1004,7 +1008,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":698
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -1013,7 +1017,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":699
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -1022,7 +1026,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":700
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -1031,7 +1035,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":704
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -1040,7 +1044,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":705
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -1049,7 +1053,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":714
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -1058,7 +1062,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":715
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -1067,7 +1071,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":716
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -1076,7 +1080,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":718
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -1085,7 +1089,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":719
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -1094,7 +1098,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":720
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -1103,7 +1107,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":722
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -1112,7 +1116,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":723
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -1121,7 +1125,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":725
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1130,7 +1134,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":726
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1139,7 +1143,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":727
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1187,7 +1191,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":729
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1196,7 +1200,7 @@ struct __pyx_memoryviewslice_obj;
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":730
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1205,7 +1209,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":731
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1214,7 +1218,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":733
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1284,7 +1288,7 @@ struct __pyx_memoryview_obj {
 };
 
 
-/* "View.MemoryView":961
+/* "View.MemoryView":965
  * 
  * @cname('__pyx_memoryviewslice')
  * cdef class _memoryviewslice(memoryview):             # <<<<<<<<<<<<<<
@@ -1335,7 +1339,7 @@ struct __pyx_vtabstruct_memoryview {
 static struct __pyx_vtabstruct_memoryview *__pyx_vtabptr_memoryview;
 
 
-/* "View.MemoryView":961
+/* "View.MemoryView":965
  * 
  * @cname('__pyx_memoryviewslice')
  * cdef class _memoryviewslice(memoryview):             # <<<<<<<<<<<<<<
@@ -1523,77 +1527,6 @@ static CYTHON_INLINE int __pyx_sub_acquisition_count_locked(
 static CYTHON_INLINE void __Pyx_INC_MEMVIEW(__Pyx_memviewslice *, int, int);
 static CYTHON_INLINE void __Pyx_XDEC_MEMVIEW(__Pyx_memviewslice *, int, int);
 
-/* PyObjectCall.proto */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
-#else
-#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
-#endif
-
-/* RaiseException.proto */
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
-
-/* PyCFunctionFastCall.proto */
-#if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
-#else
-#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
-#endif
-
-/* PyFunctionFastCall.proto */
-#if CYTHON_FAST_PYCALL
-#define __Pyx_PyFunction_FastCall(func, args, nargs)\
-    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
-#if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
-#else
-#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
-#endif
-#define __Pyx_BUILD_ASSERT_EXPR(cond)\
-    (sizeof(char [1 - 2*!(cond)]) - 1)
-#ifndef Py_MEMBER_SIZE
-#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
-#endif
-  static size_t __pyx_pyframe_localsplus_offset = 0;
-  #include "frameobject.h"
-  #define __Pxy_PyFrame_Initialize_Offsets()\
-    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
-     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
-  #define __Pyx_PyFrame_GetLocalsplus(frame)\
-    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
-#endif
-
-/* PyObjectCallMethO.proto */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
-#endif
-
-/* PyObjectCallOneArg.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
-
-/* DictGetItem.proto */
-#if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
-static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key);
-#define __Pyx_PyObject_Dict_GetItem(obj, name)\
-    (likely(PyDict_CheckExact(obj)) ?\
-     __Pyx_PyDict_GetItem(obj, name) : PyObject_GetItem(obj, name))
-#else
-#define __Pyx_PyDict_GetItem(d, key) PyObject_GetItem(d, key)
-#define __Pyx_PyObject_Dict_GetItem(obj, name)  PyObject_GetItem(obj, name)
-#endif
-
-/* RaiseTooManyValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
-
-/* RaiseNeedMoreValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
-
-/* RaiseNoneIterError.proto */
-static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
-
-/* ExtTypeTest.proto */
-static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
-
 /* GetTopmostException.proto */
 #if CYTHON_USE_EXC_INFO_STACK
 static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate);
@@ -1626,9 +1559,57 @@ static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
 #endif
 
+/* PyObjectCall.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
+/* RaiseException.proto */
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
+/* PyCFunctionFastCall.proto */
+#if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
+#else
+#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
+#endif
+
+/* PyFunctionFastCall.proto */
+#if CYTHON_FAST_PYCALL
+#define __Pyx_PyFunction_FastCall(func, args, nargs)\
+    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs);
+#else
+#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
+#endif
+#define __Pyx_BUILD_ASSERT_EXPR(cond)\
+    (sizeof(char [1 - 2*!(cond)]) - 1)
+#ifndef Py_MEMBER_SIZE
+#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
+#endif
+  static size_t __pyx_pyframe_localsplus_offset = 0;
+  #include "frameobject.h"
+  #define __Pxy_PyFrame_Initialize_Offsets()\
+    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
+     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
+  #define __Pyx_PyFrame_GetLocalsplus(frame)\
+    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
+#endif
+
 /* PyObjectCall2Args.proto */
 static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2);
 
+/* PyObjectCallMethO.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+/* PyObjectCallOneArg.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
 /* IncludeStringH.proto */
 #include <string.h>
 
@@ -1709,6 +1690,32 @@ static CYTHON_INLINE PyObject* __Pyx_decode_c_string(
 /* GetAttr3.proto */
 static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *, PyObject *, PyObject *);
 
+/* PyDictVersioning.proto */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+#define __PYX_DICT_VERSION_INIT  ((PY_UINT64_T) -1)
+#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
+    (version_var) = __PYX_GET_DICT_VERSION(dict);\
+    (cache_var) = (value);
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
+        (VAR) = __pyx_dict_cached_value;\
+    } else {\
+        (VAR) = __pyx_dict_cached_value = (LOOKUP);\
+        __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
+    }\
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj);
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj);
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version);
+#else
+#define __PYX_GET_DICT_VERSION(dict)  (0)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
+#endif
+
 /* GetModuleGlobalName.proto */
 #if CYTHON_USE_DICT_VERSIONS
 #define __Pyx_GetModuleGlobalName(var, name)  {\
@@ -1730,6 +1737,18 @@ static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_ve
 static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
 #endif
 
+/* RaiseTooManyValuesToUnpack.proto */
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
+
+/* RaiseNeedMoreValuesToUnpack.proto */
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
+
+/* RaiseNoneIterError.proto */
+static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
+
+/* ExtTypeTest.proto */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
+
 /* SwapException.proto */
 #if CYTHON_FAST_THREAD_STATE
 #define __Pyx_ExceptionSwap(type, value, tb)  __Pyx__ExceptionSwap(__pyx_tstate, type, value, tb)
@@ -1763,7 +1782,7 @@ static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
     if (likely(L->allocated > len)) {
         Py_INCREF(x);
         PyList_SET_ITEM(list, len, x);
-        Py_SIZE(list) = len+1;
+        __Pyx_SET_SIZE(list, len + 1);
         return 0;
     }
     return PyList_Append(list, x);
@@ -1774,9 +1793,9 @@ static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
 
 /* PyIntBinop.proto */
 #if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, long intval, int inplace);
+static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, long intval, int inplace, int zerodivision_check);
 #else
-#define __Pyx_PyInt_AddObjC(op1, op2, intval, inplace)\
+#define __Pyx_PyInt_AddObjC(op1, op2, intval, inplace, zerodivision_check)\
     (inplace ? PyNumber_InPlaceAdd(op1, op2) : PyNumber_Add(op1, op2))
 #endif
 
@@ -1801,7 +1820,7 @@ static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
     if (likely(L->allocated > len) & likely(len > (L->allocated >> 1))) {
         Py_INCREF(x);
         PyList_SET_ITEM(list, len, x);
-        Py_SIZE(list) = len+1;
+        __Pyx_SET_SIZE(list, len + 1);
         return 0;
     }
     return PyList_Append(list, x);
@@ -1816,11 +1835,6 @@ static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname);
 /* None.proto */
 static CYTHON_INLINE long __Pyx_div_long(long, long);
 
-/* WriteUnraisableException.proto */
-static void __Pyx_WriteUnraisable(const char *name, int clineno,
-                                  int lineno, const char *filename,
-                                  int full_traceback, int nogil);
-
 /* ImportFrom.proto */
 static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
 
@@ -1844,6 +1858,9 @@ static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_nam
 /* SetVTable.proto */
 static int __Pyx_SetVtable(PyObject *dict, void *vtable);
 
+/* PyObjectGetAttrStrNoError.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name);
+
 /* SetupReduce.proto */
 static int __Pyx_setup_reduce(PyObject* type_obj);
 
@@ -2039,9 +2056,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
     #endif
 #endif
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
-
 /* MemviewSliceCopyTemplate.proto */
 static __Pyx_memviewslice
 __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
@@ -2104,8 +2118,17 @@ static PyTypeObject *__pyx_ptype_5numpy_dtype = 0;
 static PyTypeObject *__pyx_ptype_5numpy_flatiter = 0;
 static PyTypeObject *__pyx_ptype_5numpy_broadcast = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ndarray = 0;
+static PyTypeObject *__pyx_ptype_5numpy_generic = 0;
+static PyTypeObject *__pyx_ptype_5numpy_number = 0;
+static PyTypeObject *__pyx_ptype_5numpy_integer = 0;
+static PyTypeObject *__pyx_ptype_5numpy_signedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_unsignedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_inexact = 0;
+static PyTypeObject *__pyx_ptype_5numpy_floating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_complexfloating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_flexible = 0;
+static PyTypeObject *__pyx_ptype_5numpy_character = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
-static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
 static CYTHON_INLINE int __pyx_f_5numpy_import_array(void); /*proto*/
 
 /* Module declarations from 'cython.view' */
@@ -2165,9 +2188,8 @@ int __pyx_module_is_main_GPy__kern__src__stationary_cython = 0;
 
 /* Implementation of 'GPy.kern.src.stationary_cython' */
 static PyObject *__pyx_builtin_range;
-static PyObject *__pyx_builtin_ValueError;
-static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
+static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_MemoryError;
 static PyObject *__pyx_builtin_enumerate;
 static PyObject *__pyx_builtin_TypeError;
@@ -2246,7 +2268,6 @@ static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
 static const char __pyx_k_ImportError[] = "ImportError";
 static const char __pyx_k_MemoryError[] = "MemoryError";
 static const char __pyx_k_PickleError[] = "PickleError";
-static const char __pyx_k_RuntimeError[] = "RuntimeError";
 static const char __pyx_k_pyx_checksum[] = "__pyx_checksum";
 static const char __pyx_k_stringsource[] = "stringsource";
 static const char __pyx_k_grad_X_cython[] = "grad_X_cython";
@@ -2270,31 +2291,25 @@ static const char __pyx_k_contiguous_and_indirect[] = "<contiguous and indirect>
 static const char __pyx_k_Cannot_index_with_type_s[] = "Cannot index with type '%s'";
 static const char __pyx_k_Invalid_shape_in_axis_d_d[] = "Invalid shape in axis %d: %d.";
 static const char __pyx_k_itemsize_0_for_cython_array[] = "itemsize <= 0 for cython.array";
-static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
 static const char __pyx_k_unable_to_allocate_array_data[] = "unable to allocate array data.";
 static const char __pyx_k_GPy_kern_src_stationary_cython[] = "GPy.kern.src.stationary_cython";
 static const char __pyx_k_strided_and_direct_or_indirect[] = "<strided and direct or indirect>";
 static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
-static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
 static const char __pyx_k_Buffer_view_does_not_expose_stri[] = "Buffer view does not expose strides";
 static const char __pyx_k_Can_only_create_a_buffer_that_is[] = "Can only create a buffer that is contiguous in memory.";
 static const char __pyx_k_Cannot_assign_to_read_only_memor[] = "Cannot assign to read-only memoryview";
 static const char __pyx_k_Cannot_create_writable_memory_vi[] = "Cannot create writable memory view from read-only memoryview";
 static const char __pyx_k_Empty_shape_tuple_for_cython_arr[] = "Empty shape tuple for cython.array";
-static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
 static const char __pyx_k_GPy_kern_src_stationary_cython_p[] = "GPy/kern/src/stationary_cython.pyx";
 static const char __pyx_k_Incompatible_checksums_s_vs_0xb0[] = "Incompatible checksums (%s vs 0xb068931 = (name))";
 static const char __pyx_k_Indirect_dimensions_not_supporte[] = "Indirect dimensions not supported";
 static const char __pyx_k_Invalid_mode_expected_c_or_fortr[] = "Invalid mode, expected 'c' or 'fortran', got %s";
-static const char __pyx_k_Non_native_byte_order_not_suppor[] = "Non-native byte order not supported";
 static const char __pyx_k_Out_of_bounds_on_buffer_access_a[] = "Out of bounds on buffer access (axis %d)";
 static const char __pyx_k_Unable_to_convert_item_to_object[] = "Unable to convert item to object";
 static const char __pyx_k_got_differing_extents_in_dimensi[] = "got differing extents in dimension %d (got %d and %d)";
-static const char __pyx_k_ndarray_is_not_Fortran_contiguou[] = "ndarray is not Fortran contiguous";
 static const char __pyx_k_no_default___reduce___due_to_non[] = "no default __reduce__ due to non-trivial __cinit__";
 static const char __pyx_k_numpy_core_umath_failed_to_impor[] = "numpy.core.umath failed to import";
 static const char __pyx_k_unable_to_allocate_shape_and_str[] = "unable to allocate shape and strides.";
-static const char __pyx_k_Format_string_allocated_too_shor_2[] = "Format string allocated too short.";
 static PyObject *__pyx_n_s_ASCII;
 static PyObject *__pyx_kp_s_Buffer_view_does_not_expose_stri;
 static PyObject *__pyx_kp_s_Can_only_create_a_buffer_that_is;
@@ -2304,8 +2319,6 @@ static PyObject *__pyx_kp_s_Cannot_index_with_type_s;
 static PyObject *__pyx_n_s_D;
 static PyObject *__pyx_n_s_Ellipsis;
 static PyObject *__pyx_kp_s_Empty_shape_tuple_for_cython_arr;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor_2;
 static PyObject *__pyx_n_s_GPy_kern_src_stationary_cython;
 static PyObject *__pyx_kp_s_GPy_kern_src_stationary_cython_p;
 static PyObject *__pyx_n_s_ImportError;
@@ -2319,12 +2332,10 @@ static PyObject *__pyx_n_s_MemoryError;
 static PyObject *__pyx_kp_s_MemoryView_of_r_at_0x_x;
 static PyObject *__pyx_kp_s_MemoryView_of_r_object;
 static PyObject *__pyx_n_s_N;
-static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
 static PyObject *__pyx_n_b_O;
 static PyObject *__pyx_kp_s_Out_of_bounds_on_buffer_access_a;
 static PyObject *__pyx_n_s_PickleError;
 static PyObject *__pyx_n_s_Q;
-static PyObject *__pyx_n_s_RuntimeError;
 static PyObject *__pyx_n_s_TypeError;
 static PyObject *__pyx_kp_s_Unable_to_convert_item_to_object;
 static PyObject *__pyx_n_s_ValueError;
@@ -2373,8 +2384,6 @@ static PyObject *__pyx_n_s_n;
 static PyObject *__pyx_n_s_name;
 static PyObject *__pyx_n_s_name_2;
 static PyObject *__pyx_n_s_nd;
-static PyObject *__pyx_kp_u_ndarray_is_not_C_contiguous;
-static PyObject *__pyx_kp_u_ndarray_is_not_Fortran_contiguou;
 static PyObject *__pyx_n_s_ndim;
 static PyObject *__pyx_n_s_new;
 static PyObject *__pyx_kp_s_no_default___reduce___due_to_non;
@@ -2415,15 +2424,12 @@ static PyObject *__pyx_n_s_tmp;
 static PyObject *__pyx_n_s_tmp_2;
 static PyObject *__pyx_kp_s_unable_to_allocate_array_data;
 static PyObject *__pyx_kp_s_unable_to_allocate_shape_and_str;
-static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_n_s_unpack;
 static PyObject *__pyx_n_s_update;
 static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_grad_X(CYTHON_UNUSED PyObject *__pyx_self, int __pyx_v_N, int __pyx_v_D, int __pyx_v_M, PyArrayObject *__pyx_v__X, PyArrayObject *__pyx_v__X2, PyArrayObject *__pyx_v__tmp, PyArrayObject *__pyx_v__grad); /* proto */
 static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_2grad_X_cython(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED int __pyx_v_N, int __pyx_v_D, int __pyx_v_M, __Pyx_memviewslice __pyx_v_X, __Pyx_memviewslice __pyx_v_X2, __Pyx_memviewslice __pyx_v_tmp, __Pyx_memviewslice __pyx_v_grad); /* proto */
 static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_4lengthscale_grads_in_c(CYTHON_UNUSED PyObject *__pyx_self, int __pyx_v_N, int __pyx_v_M, int __pyx_v_Q, PyArrayObject *__pyx_v__tmp, PyArrayObject *__pyx_v__X, PyArrayObject *__pyx_v__X2, PyArrayObject *__pyx_v__grad); /* proto */
 static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_6lengthscale_grads(CYTHON_UNUSED PyObject *__pyx_self, int __pyx_v_N, int __pyx_v_M, int __pyx_v_Q, __Pyx_memviewslice __pyx_v_tmp, __Pyx_memviewslice __pyx_v_X, __Pyx_memviewslice __pyx_v_X2, __Pyx_memviewslice __pyx_v_grad); /* proto */
-static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
-static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static int __pyx_array___pyx_pf_15View_dot_MemoryView_5array___cinit__(struct __pyx_array_obj *__pyx_v_self, PyObject *__pyx_v_shape, Py_ssize_t __pyx_v_itemsize, PyObject *__pyx_v_format, PyObject *__pyx_v_mode, int __pyx_v_allocate_buffer); /* proto */
 static int __pyx_array___pyx_pf_15View_dot_MemoryView_5array_2__getbuffer__(struct __pyx_array_obj *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_array___pyx_pf_15View_dot_MemoryView_5array_4__dealloc__(struct __pyx_array_obj *__pyx_v_self); /* proto */
@@ -2483,7 +2489,7 @@ static PyObject *__pyx_tuple__6;
 static PyObject *__pyx_tuple__7;
 static PyObject *__pyx_tuple__8;
 static PyObject *__pyx_tuple__9;
-static PyObject *__pyx_slice__22;
+static PyObject *__pyx_slice__17;
 static PyObject *__pyx_tuple__10;
 static PyObject *__pyx_tuple__11;
 static PyObject *__pyx_tuple__12;
@@ -2491,29 +2497,24 @@ static PyObject *__pyx_tuple__13;
 static PyObject *__pyx_tuple__14;
 static PyObject *__pyx_tuple__15;
 static PyObject *__pyx_tuple__16;
-static PyObject *__pyx_tuple__17;
 static PyObject *__pyx_tuple__18;
 static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 static PyObject *__pyx_tuple__21;
 static PyObject *__pyx_tuple__23;
-static PyObject *__pyx_tuple__24;
 static PyObject *__pyx_tuple__25;
-static PyObject *__pyx_tuple__26;
-static PyObject *__pyx_tuple__28;
+static PyObject *__pyx_tuple__27;
+static PyObject *__pyx_tuple__29;
 static PyObject *__pyx_tuple__30;
+static PyObject *__pyx_tuple__31;
 static PyObject *__pyx_tuple__32;
+static PyObject *__pyx_tuple__33;
 static PyObject *__pyx_tuple__34;
-static PyObject *__pyx_tuple__35;
-static PyObject *__pyx_tuple__36;
-static PyObject *__pyx_tuple__37;
-static PyObject *__pyx_tuple__38;
-static PyObject *__pyx_tuple__39;
-static PyObject *__pyx_codeobj__27;
-static PyObject *__pyx_codeobj__29;
-static PyObject *__pyx_codeobj__31;
-static PyObject *__pyx_codeobj__33;
-static PyObject *__pyx_codeobj__40;
+static PyObject *__pyx_codeobj__22;
+static PyObject *__pyx_codeobj__24;
+static PyObject *__pyx_codeobj__26;
+static PyObject *__pyx_codeobj__28;
+static PyObject *__pyx_codeobj__35;
 /* Late includes */
 
 /* "GPy/kern/src/stationary_cython.pyx":19
@@ -2535,6 +2536,9 @@ static PyObject *__pyx_pw_3GPy_4kern_3src_17stationary_cython_1grad_X(PyObject *
   PyArrayObject *__pyx_v__X2 = 0;
   PyArrayObject *__pyx_v__tmp = 0;
   PyArrayObject *__pyx_v__grad = 0;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("grad_X (wrapper)", 0);
@@ -2664,6 +2668,9 @@ static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_grad_X(CYTHON_UNUS
   __Pyx_Buffer __pyx_pybuffer__tmp;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("grad_X", 0);
   __pyx_pybuffer__X.pybuffer.buf = NULL;
   __pyx_pybuffer__X.refcount = 0;
@@ -2836,6 +2843,9 @@ static PyObject *__pyx_pw_3GPy_4kern_3src_17stationary_cython_3grad_X_cython(PyO
   __Pyx_memviewslice __pyx_v_X2 = { 0, 0, { 0 }, { 0 }, { 0 } };
   __Pyx_memviewslice __pyx_v_tmp = { 0, 0, { 0 }, { 0 }, { 0 } };
   __Pyx_memviewslice __pyx_v_grad = { 0, 0, { 0 }, { 0 }, { 0 } };
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("grad_X_cython (wrapper)", 0);
@@ -2963,8 +2973,6 @@ static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_2grad_X_cython(CYT
   Py_ssize_t __pyx_t_12;
   Py_ssize_t __pyx_t_13;
   Py_ssize_t __pyx_t_14;
-  Py_ssize_t __pyx_t_15;
-  Py_ssize_t __pyx_t_16;
   __Pyx_RefNannySetupContext("grad_X_cython", 0);
 
   /* "GPy/kern/src/stationary_cython.pyx":34
@@ -2982,7 +2990,7 @@ static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_2grad_X_cython(CYT
       #endif
       /*try:*/ {
         __pyx_t_1 = (__pyx_v_N * __pyx_v_D);
-        if (1 == 0) abort();
+        if ((1 == 0)) abort();
         {
             #if ((defined(__APPLE__) || defined(__OSX__)) && (defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))))
                 #undef likely
@@ -2994,7 +3002,7 @@ static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_2grad_X_cython(CYT
             if (__pyx_t_3 > 0)
             {
                 #ifdef _OPENMP
-                #pragma omp parallel private(__pyx_t_10, __pyx_t_11, __pyx_t_12, __pyx_t_13, __pyx_t_14, __pyx_t_15, __pyx_t_16, __pyx_t_4, __pyx_t_5, __pyx_t_6, __pyx_t_7, __pyx_t_8, __pyx_t_9)
+                #pragma omp parallel private(__pyx_t_10, __pyx_t_11, __pyx_t_12, __pyx_t_13, __pyx_t_14, __pyx_t_4, __pyx_t_5, __pyx_t_6, __pyx_t_7, __pyx_t_8, __pyx_t_9)
                 #endif /* _OPENMP */
                 {
                     #ifdef _OPENMP
@@ -3056,15 +3064,15 @@ static PyObject *__pyx_pf_3GPy_4kern_3src_17stationary_cython_2grad_X_cython(CYT
  * 
  * def lengthscale_grads_in_c(int N, int M, int Q,
  */
+                              __pyx_t_5 = __pyx_v_n;
+                              __pyx_t_4 = __pyx_v_m;
                               __pyx_t_9 = __pyx_v_n;
-                              __pyx_t_10 = __pyx_v_m;
-                              __pyx_t_11 = __pyx_v_n;
+                              __pyx_t_10 = __pyx_v_d;
+                              __pyx_t_11 = __pyx_v_m;
                               __pyx_t_12 = __pyx_v_d;
-                              __pyx_t_13 = __pyx_v_m;
+                              __pyx_t_13 = __pyx_v_n;
                               __pyx_t_14 = __pyx_v_d;
-                              __pyx_t_15 = __pyx_v_n;
-                              __pyx_t_16 = __pyx_v_d;
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 static int __pyx_MemviewEnum___init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
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   PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
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   int __pyx_v_dtype_is_object;
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   int __pyx_t_3;
   int __pyx_t_4;
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+ *         elif (<__pyx_buffer *> &self.view).obj == Py_None:
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-    /* "View.MemoryView":379
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-      /* "View.MemoryView":380
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-        /* "View.MemoryView":381
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-          /* "View.MemoryView":384
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-          /* "View.MemoryView":383
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  */
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     }
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@@ -9109,18 +7811,18 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
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     __pyx_t_1 = (__pyx_t_1 + 1);
 
-    /* "View.MemoryView":394
+    /* "View.MemoryView":398
  * 
  *         for dim, idx in enumerate(index):
  *             itemp = pybuffer_index(&self.view, itemp, idx, dim)             # <<<<<<<<<<<<<<
  * 
  *         return itemp
  */
-    __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_idx); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 394, __pyx_L1_error)
-    __pyx_t_7 = __pyx_pybuffer_index((&__pyx_v_self->view), __pyx_v_itemp, __pyx_t_6, __pyx_v_dim); if (unlikely(__pyx_t_7 == ((char *)NULL))) __PYX_ERR(2, 394, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_idx); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 398, __pyx_L1_error)
+    __pyx_t_7 = __pyx_pybuffer_index((&__pyx_v_self->view), __pyx_v_itemp, __pyx_t_6, __pyx_v_dim); if (unlikely(__pyx_t_7 == ((char *)NULL))) __PYX_ERR(2, 398, __pyx_L1_error)
     __pyx_v_itemp = __pyx_t_7;
 
-    /* "View.MemoryView":393
+    /* "View.MemoryView":397
  *         cdef char *itemp = <char *> self.view.buf
  * 
  *         for dim, idx in enumerate(index):             # <<<<<<<<<<<<<<
@@ -9130,7 +7832,7 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
   }
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "View.MemoryView":396
+  /* "View.MemoryView":400
  *             itemp = pybuffer_index(&self.view, itemp, idx, dim)
  * 
  *         return itemp             # <<<<<<<<<<<<<<
@@ -9140,7 +7842,7 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
   __pyx_r = __pyx_v_itemp;
   goto __pyx_L0;
 
-  /* "View.MemoryView":389
+  /* "View.MemoryView":393
  *                 PyThread_free_lock(self.lock)
  * 
  *     cdef char *get_item_pointer(memoryview self, object index) except NULL:             # <<<<<<<<<<<<<<
@@ -9160,7 +7862,7 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
   return __pyx_r;
 }
 
-/* "View.MemoryView":399
+/* "View.MemoryView":403
  * 
  * 
  *     def __getitem__(memoryview self, object index):             # <<<<<<<<<<<<<<
@@ -9193,9 +7895,12 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
   PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
   char *__pyx_t_6;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__getitem__", 0);
 
-  /* "View.MemoryView":400
+  /* "View.MemoryView":404
  * 
  *     def __getitem__(memoryview self, object index):
  *         if index is Ellipsis:             # <<<<<<<<<<<<<<
@@ -9206,7 +7911,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":401
+    /* "View.MemoryView":405
  *     def __getitem__(memoryview self, object index):
  *         if index is Ellipsis:
  *             return self             # <<<<<<<<<<<<<<
@@ -9218,7 +7923,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
     __pyx_r = ((PyObject *)__pyx_v_self);
     goto __pyx_L0;
 
-    /* "View.MemoryView":400
+    /* "View.MemoryView":404
  * 
  *     def __getitem__(memoryview self, object index):
  *         if index is Ellipsis:             # <<<<<<<<<<<<<<
@@ -9227,14 +7932,14 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  */
   }
 
-  /* "View.MemoryView":403
+  /* "View.MemoryView":407
  *             return self
  * 
  *         have_slices, indices = _unellipsify(index, self.view.ndim)             # <<<<<<<<<<<<<<
  * 
  *         cdef char *itemp
  */
-  __pyx_t_3 = _unellipsify(__pyx_v_index, __pyx_v_self->view.ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 403, __pyx_L1_error)
+  __pyx_t_3 = _unellipsify(__pyx_v_index, __pyx_v_self->view.ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 407, __pyx_L1_error)
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     PyObject* sequence = __pyx_t_3;
@@ -9242,7 +7947,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
     if (unlikely(size != 2)) {
       if (size > 2) __Pyx_RaiseTooManyValuesError(2);
       else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-      __PYX_ERR(2, 403, __pyx_L1_error)
+      __PYX_ERR(2, 407, __pyx_L1_error)
     }
     #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
     __pyx_t_4 = PyTuple_GET_ITEM(sequence, 0); 
@@ -9250,31 +7955,31 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
     __Pyx_INCREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_t_5);
     #else
-    __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 403, __pyx_L1_error)
+    __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 407, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 403, __pyx_L1_error)
+    __pyx_t_5 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 407, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     #endif
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   } else {
-    __Pyx_RaiseNoneNotIterableError(); __PYX_ERR(2, 403, __pyx_L1_error)
+    __Pyx_RaiseNoneNotIterableError(); __PYX_ERR(2, 407, __pyx_L1_error)
   }
   __pyx_v_have_slices = __pyx_t_4;
   __pyx_t_4 = 0;
   __pyx_v_indices = __pyx_t_5;
   __pyx_t_5 = 0;
 
-  /* "View.MemoryView":406
+  /* "View.MemoryView":410
  * 
  *         cdef char *itemp
  *         if have_slices:             # <<<<<<<<<<<<<<
  *             return memview_slice(self, indices)
  *         else:
  */
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_have_slices); if (unlikely(__pyx_t_2 < 0)) __PYX_ERR(2, 406, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_have_slices); if (unlikely(__pyx_t_2 < 0)) __PYX_ERR(2, 410, __pyx_L1_error)
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":407
+    /* "View.MemoryView":411
  *         cdef char *itemp
  *         if have_slices:
  *             return memview_slice(self, indices)             # <<<<<<<<<<<<<<
@@ -9282,13 +7987,13 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  *             itemp = self.get_item_pointer(indices)
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_3 = ((PyObject *)__pyx_memview_slice(__pyx_v_self, __pyx_v_indices)); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 407, __pyx_L1_error)
+    __pyx_t_3 = ((PyObject *)__pyx_memview_slice(__pyx_v_self, __pyx_v_indices)); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 411, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_r = __pyx_t_3;
     __pyx_t_3 = 0;
     goto __pyx_L0;
 
-    /* "View.MemoryView":406
+    /* "View.MemoryView":410
  * 
  *         cdef char *itemp
  *         if have_slices:             # <<<<<<<<<<<<<<
@@ -9297,7 +8002,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  */
   }
 
-  /* "View.MemoryView":409
+  /* "View.MemoryView":413
  *             return memview_slice(self, indices)
  *         else:
  *             itemp = self.get_item_pointer(indices)             # <<<<<<<<<<<<<<
@@ -9305,10 +8010,10 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  * 
  */
   /*else*/ {
-    __pyx_t_6 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->get_item_pointer(__pyx_v_self, __pyx_v_indices); if (unlikely(__pyx_t_6 == ((char *)NULL))) __PYX_ERR(2, 409, __pyx_L1_error)
+    __pyx_t_6 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->get_item_pointer(__pyx_v_self, __pyx_v_indices); if (unlikely(__pyx_t_6 == ((char *)NULL))) __PYX_ERR(2, 413, __pyx_L1_error)
     __pyx_v_itemp = __pyx_t_6;
 
-    /* "View.MemoryView":410
+    /* "View.MemoryView":414
  *         else:
  *             itemp = self.get_item_pointer(indices)
  *             return self.convert_item_to_object(itemp)             # <<<<<<<<<<<<<<
@@ -9316,14 +8021,14 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  *     def __setitem__(memoryview self, object index, object value):
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_3 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->convert_item_to_object(__pyx_v_self, __pyx_v_itemp); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 410, __pyx_L1_error)
+    __pyx_t_3 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->convert_item_to_object(__pyx_v_self, __pyx_v_itemp); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 414, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_r = __pyx_t_3;
     __pyx_t_3 = 0;
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":399
+  /* "View.MemoryView":403
  * 
  * 
  *     def __getitem__(memoryview self, object index):             # <<<<<<<<<<<<<<
@@ -9346,7 +8051,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
   return __pyx_r;
 }
 
-/* "View.MemoryView":412
+/* "View.MemoryView":416
  *             return self.convert_item_to_object(itemp)
  * 
  *     def __setitem__(memoryview self, object index, object value):             # <<<<<<<<<<<<<<
@@ -9376,10 +8081,13 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__setitem__", 0);
   __Pyx_INCREF(__pyx_v_index);
 
-  /* "View.MemoryView":413
+  /* "View.MemoryView":417
  * 
  *     def __setitem__(memoryview self, object index, object value):
  *         if self.view.readonly:             # <<<<<<<<<<<<<<
@@ -9389,20 +8097,20 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
   __pyx_t_1 = (__pyx_v_self->view.readonly != 0);
   if (unlikely(__pyx_t_1)) {
 
-    /* "View.MemoryView":414
+    /* "View.MemoryView":418
  *     def __setitem__(memoryview self, object index, object value):
  *         if self.view.readonly:
  *             raise TypeError("Cannot assign to read-only memoryview")             # <<<<<<<<<<<<<<
  * 
  *         have_slices, index = _unellipsify(index, self.view.ndim)
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__15, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 414, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__10, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 418, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(2, 414, __pyx_L1_error)
+    __PYX_ERR(2, 418, __pyx_L1_error)
 
-    /* "View.MemoryView":413
+    /* "View.MemoryView":417
  * 
  *     def __setitem__(memoryview self, object index, object value):
  *         if self.view.readonly:             # <<<<<<<<<<<<<<
@@ -9411,14 +8119,14 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
  */
   }
 
-  /* "View.MemoryView":416
+  /* "View.MemoryView":420
  *             raise TypeError("Cannot assign to read-only memoryview")
  * 
  *         have_slices, index = _unellipsify(index, self.view.ndim)             # <<<<<<<<<<<<<<
  * 
  *         if have_slices:
  */
-  __pyx_t_2 = _unellipsify(__pyx_v_index, __pyx_v_self->view.ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 416, __pyx_L1_error)
+  __pyx_t_2 = _unellipsify(__pyx_v_index, __pyx_v_self->view.ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 420, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   if (likely(__pyx_t_2 != Py_None)) {
     PyObject* sequence = __pyx_t_2;
@@ -9426,7 +8134,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
     if (unlikely(size != 2)) {
       if (size > 2) __Pyx_RaiseTooManyValuesError(2);
       else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-      __PYX_ERR(2, 416, __pyx_L1_error)
+      __PYX_ERR(2, 420, __pyx_L1_error)
     }
     #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
     __pyx_t_3 = PyTuple_GET_ITEM(sequence, 0); 
@@ -9434,67 +8142,67 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
     __Pyx_INCREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_t_4);
     #else
-    __pyx_t_3 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 416, __pyx_L1_error)
+    __pyx_t_3 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 420, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 416, __pyx_L1_error)
+    __pyx_t_4 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 420, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
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     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   } else {
-    __Pyx_RaiseNoneNotIterableError(); __PYX_ERR(2, 416, __pyx_L1_error)
+    __Pyx_RaiseNoneNotIterableError(); __PYX_ERR(2, 420, __pyx_L1_error)
   }
   __pyx_v_have_slices = __pyx_t_3;
   __pyx_t_3 = 0;
   __Pyx_DECREF_SET(__pyx_v_index, __pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "View.MemoryView":418
+  /* "View.MemoryView":422
  *         have_slices, index = _unellipsify(index, self.view.ndim)
  * 
  *         if have_slices:             # <<<<<<<<<<<<<<
  *             obj = self.is_slice(value)
  *             if obj:
  */
-  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_have_slices); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 418, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_have_slices); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 422, __pyx_L1_error)
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":419
+    /* "View.MemoryView":423
  * 
  *         if have_slices:
  *             obj = self.is_slice(value)             # <<<<<<<<<<<<<<
  *             if obj:
  *                 self.setitem_slice_assignment(self[index], obj)
  */
-    __pyx_t_2 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->is_slice(__pyx_v_self, __pyx_v_value); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 419, __pyx_L1_error)
+    __pyx_t_2 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->is_slice(__pyx_v_self, __pyx_v_value); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 423, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_v_obj = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "View.MemoryView":420
+    /* "View.MemoryView":424
  *         if have_slices:
  *             obj = self.is_slice(value)
  *             if obj:             # <<<<<<<<<<<<<<
  *                 self.setitem_slice_assignment(self[index], obj)
  *             else:
  */
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_obj); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 420, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_obj); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 424, __pyx_L1_error)
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":421
+      /* "View.MemoryView":425
  *             obj = self.is_slice(value)
  *             if obj:
  *                 self.setitem_slice_assignment(self[index], obj)             # <<<<<<<<<<<<<<
  *             else:
  *                 self.setitem_slice_assign_scalar(self[index], value)
  */
-      __pyx_t_2 = __Pyx_PyObject_GetItem(((PyObject *)__pyx_v_self), __pyx_v_index); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 421, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyObject_GetItem(((PyObject *)__pyx_v_self), __pyx_v_index); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 425, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->setitem_slice_assignment(__pyx_v_self, __pyx_t_2, __pyx_v_obj); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 421, __pyx_L1_error)
+      __pyx_t_4 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->setitem_slice_assignment(__pyx_v_self, __pyx_t_2, __pyx_v_obj); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 425, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-      /* "View.MemoryView":420
+      /* "View.MemoryView":424
  *         if have_slices:
  *             obj = self.is_slice(value)
  *             if obj:             # <<<<<<<<<<<<<<
@@ -9504,7 +8212,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
       goto __pyx_L5;
     }
 
-    /* "View.MemoryView":423
+    /* "View.MemoryView":427
  *                 self.setitem_slice_assignment(self[index], obj)
  *             else:
  *                 self.setitem_slice_assign_scalar(self[index], value)             # <<<<<<<<<<<<<<
@@ -9512,17 +8220,17 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
  *             self.setitem_indexed(index, value)
  */
     /*else*/ {
-      __pyx_t_4 = __Pyx_PyObject_GetItem(((PyObject *)__pyx_v_self), __pyx_v_index); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 423, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_PyObject_GetItem(((PyObject *)__pyx_v_self), __pyx_v_index); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 427, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_memoryview_type))))) __PYX_ERR(2, 423, __pyx_L1_error)
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+      if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_memoryview_type))))) __PYX_ERR(2, 427, __pyx_L1_error)
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-    /* "View.MemoryView":418
+    /* "View.MemoryView":422
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@@ -9532,7 +8240,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
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-  /* "View.MemoryView":425
+  /* "View.MemoryView":429
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@@ -9540,13 +8248,13 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
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-  /* "View.MemoryView":412
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-/* "View.MemoryView":427
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   PyObject *__pyx_t_8 = NULL;
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+  int __pyx_lineno = 0;
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-  /* "View.MemoryView":428
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@@ -9605,7 +8316,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-    /* "View.MemoryView":429
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@@ -9621,34 +8332,34 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
       __Pyx_XGOTREF(__pyx_t_5);
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-        /* "View.MemoryView":430
+        /* "View.MemoryView":434
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-        /* "View.MemoryView":431
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-        /* "View.MemoryView":430
+        /* "View.MemoryView":434
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-        __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 430, __pyx_L4_error)
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@@ -9659,13 +8370,13 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-        /* "View.MemoryView":429
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@@ -9679,10 +8390,10 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-      /* "View.MemoryView":432
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@@ -9692,12 +8403,12 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-        /* "View.MemoryView":433
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@@ -9714,7 +8425,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-      /* "View.MemoryView":429
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-    /* "View.MemoryView":428
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  *     cdef is_slice(self, obj):
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  */
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-  /* "View.MemoryView":435
+  /* "View.MemoryView":439
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-  /* "View.MemoryView":427
+  /* "View.MemoryView":431
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  *     cdef is_slice(self, obj):             # <<<<<<<<<<<<<<
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-  /* "View.MemoryView":442
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-  /* "View.MemoryView":443
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-  /* "View.MemoryView":437
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   goto __pyx_L0;
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-  __Pyx_XDECREF(__pyx_t_1);
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-  int __pyx_t_1;
-  PyObject *__pyx_t_2 = NULL;
-  int __pyx_t_3;
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+  int __pyx_t_2;
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   int __pyx_t_4;
-  char const *__pyx_t_5;
-  PyObject *__pyx_t_6 = NULL;
+  int __pyx_t_5;
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   PyObject *__pyx_t_11 = NULL;
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-  /* "View.MemoryView":452
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-  /* "View.MemoryView":454
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-    /* "View.MemoryView":455
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-    /* "View.MemoryView":456
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@@ -10772,20 +9507,20 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_L4_bool_binop_done:;
   if (unlikely(__pyx_t_1)) {
 
-    /* "View.MemoryView":516
+    /* "View.MemoryView":520
  *     def __getbuffer__(self, Py_buffer *info, int flags):
  *         if flags & PyBUF_WRITABLE and self.view.readonly:
  *             raise ValueError("Cannot create writable memory view from read-only memoryview")             # <<<<<<<<<<<<<<
  * 
  *         if flags & PyBUF_ND:
  */
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__17, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 516, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__12, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 520, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_Raise(__pyx_t_3, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __PYX_ERR(2, 516, __pyx_L1_error)
+    __PYX_ERR(2, 520, __pyx_L1_error)
 
-    /* "View.MemoryView":515
+    /* "View.MemoryView":519
  *     @cname('getbuffer')
  *     def __getbuffer__(self, Py_buffer *info, int flags):
  *         if flags & PyBUF_WRITABLE and self.view.readonly:             # <<<<<<<<<<<<<<
@@ -10794,7 +9529,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
  */
   }
 
-  /* "View.MemoryView":518
+  /* "View.MemoryView":522
  *             raise ValueError("Cannot create writable memory view from read-only memoryview")
  * 
  *         if flags & PyBUF_ND:             # <<<<<<<<<<<<<<
@@ -10804,7 +9539,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_ND) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":519
+    /* "View.MemoryView":523
  * 
  *         if flags & PyBUF_ND:
  *             info.shape = self.view.shape             # <<<<<<<<<<<<<<
@@ -10814,7 +9549,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     __pyx_t_4 = __pyx_v_self->view.shape;
     __pyx_v_info->shape = __pyx_t_4;
 
-    /* "View.MemoryView":518
+    /* "View.MemoryView":522
  *             raise ValueError("Cannot create writable memory view from read-only memoryview")
  * 
  *         if flags & PyBUF_ND:             # <<<<<<<<<<<<<<
@@ -10824,7 +9559,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L6;
   }
 
-  /* "View.MemoryView":521
+  /* "View.MemoryView":525
  *             info.shape = self.view.shape
  *         else:
  *             info.shape = NULL             # <<<<<<<<<<<<<<
@@ -10836,7 +9571,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L6:;
 
-  /* "View.MemoryView":523
+  /* "View.MemoryView":527
  *             info.shape = NULL
  * 
  *         if flags & PyBUF_STRIDES:             # <<<<<<<<<<<<<<
@@ -10846,7 +9581,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_STRIDES) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":524
+    /* "View.MemoryView":528
  * 
  *         if flags & PyBUF_STRIDES:
  *             info.strides = self.view.strides             # <<<<<<<<<<<<<<
@@ -10856,7 +9591,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     __pyx_t_4 = __pyx_v_self->view.strides;
     __pyx_v_info->strides = __pyx_t_4;
 
-    /* "View.MemoryView":523
+    /* "View.MemoryView":527
  *             info.shape = NULL
  * 
  *         if flags & PyBUF_STRIDES:             # <<<<<<<<<<<<<<
@@ -10866,7 +9601,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L7;
   }
 
-  /* "View.MemoryView":526
+  /* "View.MemoryView":530
  *             info.strides = self.view.strides
  *         else:
  *             info.strides = NULL             # <<<<<<<<<<<<<<
@@ -10878,7 +9613,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L7:;
 
-  /* "View.MemoryView":528
+  /* "View.MemoryView":532
  *             info.strides = NULL
  * 
  *         if flags & PyBUF_INDIRECT:             # <<<<<<<<<<<<<<
@@ -10888,7 +9623,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_INDIRECT) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":529
+    /* "View.MemoryView":533
  * 
  *         if flags & PyBUF_INDIRECT:
  *             info.suboffsets = self.view.suboffsets             # <<<<<<<<<<<<<<
@@ -10898,7 +9633,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     __pyx_t_4 = __pyx_v_self->view.suboffsets;
     __pyx_v_info->suboffsets = __pyx_t_4;
 
-    /* "View.MemoryView":528
+    /* "View.MemoryView":532
  *             info.strides = NULL
  * 
  *         if flags & PyBUF_INDIRECT:             # <<<<<<<<<<<<<<
@@ -10908,7 +9643,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L8;
   }
 
-  /* "View.MemoryView":531
+  /* "View.MemoryView":535
  *             info.suboffsets = self.view.suboffsets
  *         else:
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -10920,7 +9655,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L8:;
 
-  /* "View.MemoryView":533
+  /* "View.MemoryView":537
  *             info.suboffsets = NULL
  * 
  *         if flags & PyBUF_FORMAT:             # <<<<<<<<<<<<<<
@@ -10930,7 +9665,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_FORMAT) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":534
+    /* "View.MemoryView":538
  * 
  *         if flags & PyBUF_FORMAT:
  *             info.format = self.view.format             # <<<<<<<<<<<<<<
@@ -10940,7 +9675,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     __pyx_t_5 = __pyx_v_self->view.format;
     __pyx_v_info->format = __pyx_t_5;
 
-    /* "View.MemoryView":533
+    /* "View.MemoryView":537
  *             info.suboffsets = NULL
  * 
  *         if flags & PyBUF_FORMAT:             # <<<<<<<<<<<<<<
@@ -10950,7 +9685,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L9;
   }
 
-  /* "View.MemoryView":536
+  /* "View.MemoryView":540
  *             info.format = self.view.format
  *         else:
  *             info.format = NULL             # <<<<<<<<<<<<<<
@@ -10962,7 +9697,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L9:;
 
-  /* "View.MemoryView":538
+  /* "View.MemoryView":542
  *             info.format = NULL
  * 
  *         info.buf = self.view.buf             # <<<<<<<<<<<<<<
@@ -10972,7 +9707,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_6 = __pyx_v_self->view.buf;
   __pyx_v_info->buf = __pyx_t_6;
 
-  /* "View.MemoryView":539
+  /* "View.MemoryView":543
  * 
  *         info.buf = self.view.buf
  *         info.ndim = self.view.ndim             # <<<<<<<<<<<<<<
@@ -10982,7 +9717,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_7 = __pyx_v_self->view.ndim;
   __pyx_v_info->ndim = __pyx_t_7;
 
-  /* "View.MemoryView":540
+  /* "View.MemoryView":544
  *         info.buf = self.view.buf
  *         info.ndim = self.view.ndim
  *         info.itemsize = self.view.itemsize             # <<<<<<<<<<<<<<
@@ -10992,7 +9727,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_8 = __pyx_v_self->view.itemsize;
   __pyx_v_info->itemsize = __pyx_t_8;
 
-  /* "View.MemoryView":541
+  /* "View.MemoryView":545
  *         info.ndim = self.view.ndim
  *         info.itemsize = self.view.itemsize
  *         info.len = self.view.len             # <<<<<<<<<<<<<<
@@ -11002,7 +9737,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_8 = __pyx_v_self->view.len;
   __pyx_v_info->len = __pyx_t_8;
 
-  /* "View.MemoryView":542
+  /* "View.MemoryView":546
  *         info.itemsize = self.view.itemsize
  *         info.len = self.view.len
  *         info.readonly = self.view.readonly             # <<<<<<<<<<<<<<
@@ -11012,7 +9747,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = __pyx_v_self->view.readonly;
   __pyx_v_info->readonly = __pyx_t_1;
 
-  /* "View.MemoryView":543
+  /* "View.MemoryView":547
  *         info.len = self.view.len
  *         info.readonly = self.view.readonly
  *         info.obj = self             # <<<<<<<<<<<<<<
@@ -11025,7 +9760,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "View.MemoryView":514
+  /* "View.MemoryView":518
  * 
  *     @cname('getbuffer')
  *     def __getbuffer__(self, Py_buffer *info, int flags):             # <<<<<<<<<<<<<<
@@ -11055,7 +9790,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   return __pyx_r;
 }
 
-/* "View.MemoryView":549
+/* "View.MemoryView":553
  * 
  *     @property
  *     def T(self):             # <<<<<<<<<<<<<<
@@ -11082,31 +9817,34 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_1T___get__(struct _
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
   int __pyx_t_2;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "View.MemoryView":550
+  /* "View.MemoryView":554
  *     @property
  *     def T(self):
  *         cdef _memoryviewslice result = memoryview_copy(self)             # <<<<<<<<<<<<<<
  *         transpose_memslice(&result.from_slice)
  *         return result
  */
-  __pyx_t_1 = __pyx_memoryview_copy_object(__pyx_v_self); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 550, __pyx_L1_error)
+  __pyx_t_1 = __pyx_memoryview_copy_object(__pyx_v_self); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 554, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_memoryviewslice_type))))) __PYX_ERR(2, 550, __pyx_L1_error)
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_memoryviewslice_type))))) __PYX_ERR(2, 554, __pyx_L1_error)
   __pyx_v_result = ((struct __pyx_memoryviewslice_obj *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "View.MemoryView":551
+  /* "View.MemoryView":555
  *     def T(self):
  *         cdef _memoryviewslice result = memoryview_copy(self)
  *         transpose_memslice(&result.from_slice)             # <<<<<<<<<<<<<<
  *         return result
  * 
  */
-  __pyx_t_2 = __pyx_memslice_transpose((&__pyx_v_result->from_slice)); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(2, 551, __pyx_L1_error)
+  __pyx_t_2 = __pyx_memslice_transpose((&__pyx_v_result->from_slice)); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(2, 555, __pyx_L1_error)
 
-  /* "View.MemoryView":552
+  /* "View.MemoryView":556
  *         cdef _memoryviewslice result = memoryview_copy(self)
  *         transpose_memslice(&result.from_slice)
  *         return result             # <<<<<<<<<<<<<<
@@ -11118,7 +9856,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_1T___get__(struct _
   __pyx_r = ((PyObject *)__pyx_v_result);
   goto __pyx_L0;
 
-  /* "View.MemoryView":549
+  /* "View.MemoryView":553
  * 
  *     @property
  *     def T(self):             # <<<<<<<<<<<<<<
@@ -11138,7 +9876,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_1T___get__(struct _
   return __pyx_r;
 }
 
-/* "View.MemoryView":555
+/* "View.MemoryView":559
  * 
  *     @property
  *     def base(self):             # <<<<<<<<<<<<<<
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   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "View.MemoryView":556
+  /* "View.MemoryView":560
  *     @property
  *     def base(self):
  *         return self.obj             # <<<<<<<<<<<<<<
@@ -11176,7 +9914,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_4base___get__(struc
   __pyx_r = __pyx_v_self->obj;
   goto __pyx_L0;
 
-  /* "View.MemoryView":555
+  /* "View.MemoryView":559
  * 
  *     @property
  *     def base(self):             # <<<<<<<<<<<<<<
@@ -11191,7 +9929,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_4base___get__(struc
   return __pyx_r;
 }
 
-/* "View.MemoryView":559
+/* "View.MemoryView":563
  * 
  *     @property
  *     def shape(self):             # <<<<<<<<<<<<<<
@@ -11221,9 +9959,12 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_5shape___get__(stru
   Py_ssize_t *__pyx_t_3;
   Py_ssize_t *__pyx_t_4;
   PyObject *__pyx_t_5 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "View.MemoryView":560
+  /* "View.MemoryView":564
  *     @property
  *     def shape(self):
  *         return tuple([length for length in self.view.shape[:self.view.ndim]])             # <<<<<<<<<<<<<<
@@ -11231,25 +9972,25 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_5shape___get__(stru
  *     @property
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   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 560, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 564, __pyx_L1_error)
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   __pyx_t_3 = (__pyx_v_self->view.shape + __pyx_v_self->view.ndim);
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-    __pyx_t_5 = PyInt_FromSsize_t(__pyx_v_length); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 560, __pyx_L1_error)
+    __pyx_t_5 = PyInt_FromSsize_t(__pyx_v_length); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 564, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
-    if (unlikely(__Pyx_ListComp_Append(__pyx_t_1, (PyObject*)__pyx_t_5))) __PYX_ERR(2, 560, __pyx_L1_error)
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-  __pyx_t_5 = PyList_AsTuple(((PyObject*)__pyx_t_1)); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 560, __pyx_L1_error)
+  __pyx_t_5 = PyList_AsTuple(((PyObject*)__pyx_t_1)); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 564, __pyx_L1_error)
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   goto __pyx_L0;
 
-  /* "View.MemoryView":559
+  /* "View.MemoryView":563
  * 
  *     @property
  *     def shape(self):             # <<<<<<<<<<<<<<
@@ -11269,7 +10010,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_5shape___get__(stru
   return __pyx_r;
 }
 
-/* "View.MemoryView":563
+/* "View.MemoryView":567
  * 
  *     @property
  *     def strides(self):             # <<<<<<<<<<<<<<
@@ -11300,9 +10041,12 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_7strides___get__(st
   Py_ssize_t *__pyx_t_4;
   Py_ssize_t *__pyx_t_5;
   PyObject *__pyx_t_6 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "View.MemoryView":564
+  /* "View.MemoryView":568
  *     @property
  *     def strides(self):
  *         if self.view.strides == NULL:             # <<<<<<<<<<<<<<
@@ -11312,20 +10056,20 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_7strides___get__(st
   __pyx_t_1 = ((__pyx_v_self->view.strides == NULL) != 0);
   if (unlikely(__pyx_t_1)) {
 
-    /* "View.MemoryView":566
+    /* "View.MemoryView":570
  *         if self.view.strides == NULL:
  * 
  *             raise ValueError("Buffer view does not expose strides")             # <<<<<<<<<<<<<<
  * 
  *         return tuple([stride for stride in self.view.strides[:self.view.ndim]])
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__18, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 566, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__13, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 570, __pyx_L1_error)
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     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(2, 566, __pyx_L1_error)
+    __PYX_ERR(2, 570, __pyx_L1_error)
 
-    /* "View.MemoryView":564
+    /* "View.MemoryView":568
  *     @property
  *     def strides(self):
  *         if self.view.strides == NULL:             # <<<<<<<<<<<<<<
@@ -11334,7 +10078,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_7strides___get__(st
  */
   }
 
-  /* "View.MemoryView":568
+  /* "View.MemoryView":572
  *             raise ValueError("Buffer view does not expose strides")
  * 
  *         return tuple([stride for stride in self.view.strides[:self.view.ndim]])             # <<<<<<<<<<<<<<
@@ -11342,25 +10086,25 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_7strides___get__(st
  *     @property
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 568, __pyx_L1_error)
+  __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 572, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_t_4 = (__pyx_v_self->view.strides + __pyx_v_self->view.ndim);
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     __pyx_v_stride = (__pyx_t_3[0]);
-    __pyx_t_6 = PyInt_FromSsize_t(__pyx_v_stride); if (unlikely(!__pyx_t_6)) __PYX_ERR(2, 568, __pyx_L1_error)
+    __pyx_t_6 = PyInt_FromSsize_t(__pyx_v_stride); if (unlikely(!__pyx_t_6)) __PYX_ERR(2, 572, __pyx_L1_error)
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-    if (unlikely(__Pyx_ListComp_Append(__pyx_t_2, (PyObject*)__pyx_t_6))) __PYX_ERR(2, 568, __pyx_L1_error)
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-  /* "View.MemoryView":654
+  /* "View.MemoryView":658
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-  __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 654, __pyx_L1_error)
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-  /* "View.MemoryView":655
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@@ -12564,7 +11354,7 @@ static PyObject *__pyx_memoryview_new(PyObject *__pyx_v_o, int __pyx_v_flags, in
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   __pyx_v_result->typeinfo = __pyx_v_typeinfo;
 
-  /* "View.MemoryView":656
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-  /* "View.MemoryView":653
+  /* "View.MemoryView":657
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-  /* "View.MemoryView":660
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-  /* "View.MemoryView":659
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 }
 
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   int __pyx_t_9;
   int __pyx_t_10;
   PyObject *__pyx_t_11 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
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-  /* "View.MemoryView":667
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-    /* "View.MemoryView":668
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-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 668, __pyx_L1_error)
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@@ -12694,7 +11487,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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-    /* "View.MemoryView":667
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-  /* "View.MemoryView":670
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-  /* "View.MemoryView":672
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-  __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 672, __pyx_L1_error)
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-  /* "View.MemoryView":673
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@@ -12738,7 +11531,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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   __pyx_v_have_slices = 0;
 
-  /* "View.MemoryView":674
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-  /* "View.MemoryView":675
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@@ -12789,7 +11582,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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@@ -12799,13 +11592,13 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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-    /* "View.MemoryView":676
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-        /* "View.MemoryView":678
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-        /* "View.MemoryView":679
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@@ -12855,7 +11648,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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         __pyx_v_seen_ellipsis = 1;
 
-        /* "View.MemoryView":677
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-      /* "View.MemoryView":681
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-      /* "View.MemoryView":682
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@@ -12886,7 +11679,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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       __pyx_v_have_slices = 1;
 
-      /* "View.MemoryView":676
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@@ -12896,7 +11689,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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-    /* "View.MemoryView":684
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@@ -12916,23 +11709,23 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
       __pyx_L9_bool_binop_done:;
       if (unlikely(__pyx_t_1)) {
 
-        /* "View.MemoryView":685
+        /* "View.MemoryView":689
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  * 
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-        __pyx_t_7 = __Pyx_PyString_FormatSafe(__pyx_kp_s_Cannot_index_with_type_s, ((PyObject *)Py_TYPE(__pyx_v_item))); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 685, __pyx_L1_error)
+        __pyx_t_7 = __Pyx_PyString_FormatSafe(__pyx_kp_s_Cannot_index_with_type_s, ((PyObject *)Py_TYPE(__pyx_v_item))); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 689, __pyx_L1_error)
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+        __pyx_t_11 = __Pyx_PyObject_CallOneArg(__pyx_builtin_TypeError, __pyx_t_7); if (unlikely(!__pyx_t_11)) __PYX_ERR(2, 689, __pyx_L1_error)
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-        __PYX_ERR(2, 685, __pyx_L1_error)
+        __PYX_ERR(2, 689, __pyx_L1_error)
 
-        /* "View.MemoryView":684
+        /* "View.MemoryView":688
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@@ -12941,7 +11734,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
  */
       }
 
-      /* "View.MemoryView":687
+      /* "View.MemoryView":691
  *                 raise TypeError("Cannot index with type '%s'" % type(item))
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  *             have_slices = have_slices or isinstance(item, slice)             # <<<<<<<<<<<<<<
@@ -12960,18 +11753,18 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
       __pyx_L11_bool_binop_done:;
       __pyx_v_have_slices = __pyx_t_1;
 
-      /* "View.MemoryView":688
+      /* "View.MemoryView":692
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-      __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_result, __pyx_v_item); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 688, __pyx_L1_error)
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-    /* "View.MemoryView":675
+    /* "View.MemoryView":679
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@@ -12982,17 +11775,17 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "View.MemoryView":690
+  /* "View.MemoryView":694
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  *     nslices = ndim - len(result)             # <<<<<<<<<<<<<<
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-  __pyx_t_5 = PyList_GET_SIZE(__pyx_v_result); if (unlikely(__pyx_t_5 == ((Py_ssize_t)-1))) __PYX_ERR(2, 690, __pyx_L1_error)
+  __pyx_t_5 = PyList_GET_SIZE(__pyx_v_result); if (unlikely(__pyx_t_5 == ((Py_ssize_t)-1))) __PYX_ERR(2, 694, __pyx_L1_error)
   __pyx_v_nslices = (__pyx_v_ndim - __pyx_t_5);
 
-  /* "View.MemoryView":691
+  /* "View.MemoryView":695
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@@ -13002,26 +11795,26 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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   if (__pyx_t_1) {
 
-    /* "View.MemoryView":692
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+    __pyx_t_3 = PyList_New(1 * ((__pyx_v_nslices<0) ? 0:__pyx_v_nslices)); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 696, __pyx_L1_error)
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       for (__pyx_temp=0; __pyx_temp < __pyx_v_nslices; __pyx_temp++) {
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-        __Pyx_GIVEREF(__pyx_slice__22);
-        PyList_SET_ITEM(__pyx_t_3, __pyx_temp, __pyx_slice__22);
+        __Pyx_INCREF(__pyx_slice__17);
+        __Pyx_GIVEREF(__pyx_slice__17);
+        PyList_SET_ITEM(__pyx_t_3, __pyx_temp, __pyx_slice__17);
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-    __pyx_t_9 = __Pyx_PyList_Extend(__pyx_v_result, __pyx_t_3); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 692, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyList_Extend(__pyx_v_result, __pyx_t_3); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 696, __pyx_L1_error)
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-    /* "View.MemoryView":691
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@@ -13030,7 +11823,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
  */
   }
 
-  /* "View.MemoryView":694
+  /* "View.MemoryView":698
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@@ -13040,20 +11833,20 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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+    __pyx_t_4 = __Pyx_PyBool_FromLong(__pyx_v_have_slices); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 698, __pyx_L1_error)
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-  __pyx_t_4 = PyInt_FromSsize_t(__pyx_v_nslices); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 694, __pyx_L1_error)
+  __pyx_t_4 = PyInt_FromSsize_t(__pyx_v_nslices); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 698, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
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-  __pyx_t_4 = PyList_AsTuple(__pyx_v_result); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 694, __pyx_L1_error)
+  __pyx_t_4 = PyList_AsTuple(__pyx_v_result); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 698, __pyx_L1_error)
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-  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) __PYX_ERR(2, 694, __pyx_L1_error)
+  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) __PYX_ERR(2, 698, __pyx_L1_error)
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@@ -13065,7 +11858,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
   __pyx_t_11 = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":662
+  /* "View.MemoryView":666
  *     return isinstance(o, memoryview)
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  * cdef tuple _unellipsify(object index, int ndim):             # <<<<<<<<<<<<<<
@@ -13091,7 +11884,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
   return __pyx_r;
 }
 
-/* "View.MemoryView":696
+/* "View.MemoryView":700
  *     return have_slices or nslices, tuple(result)
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@@ -13108,9 +11901,12 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
   Py_ssize_t *__pyx_t_3;
   int __pyx_t_4;
   PyObject *__pyx_t_5 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("assert_direct_dimensions", 0);
 
-  /* "View.MemoryView":697
+  /* "View.MemoryView":701
  * 
  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):
  *     for suboffset in suboffsets[:ndim]:             # <<<<<<<<<<<<<<
@@ -13122,7 +11918,7 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
     __pyx_t_1 = __pyx_t_3;
     __pyx_v_suboffset = (__pyx_t_1[0]);
 
-    /* "View.MemoryView":698
+    /* "View.MemoryView":702
  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):
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  *         if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -13132,20 +11928,20 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
     __pyx_t_4 = ((__pyx_v_suboffset >= 0) != 0);
     if (unlikely(__pyx_t_4)) {
 
-      /* "View.MemoryView":699
+      /* "View.MemoryView":703
  *     for suboffset in suboffsets[:ndim]:
  *         if suboffset >= 0:
  *             raise ValueError("Indirect dimensions not supported")             # <<<<<<<<<<<<<<
  * 
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-      __pyx_t_5 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__23, NULL); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 699, __pyx_L1_error)
+      __pyx_t_5 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__18, NULL); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 703, __pyx_L1_error)
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       __Pyx_Raise(__pyx_t_5, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __PYX_ERR(2, 699, __pyx_L1_error)
+      __PYX_ERR(2, 703, __pyx_L1_error)
 
-      /* "View.MemoryView":698
+      /* "View.MemoryView":702
  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):
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  *         if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -13155,7 +11951,7 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
     }
   }
 
-  /* "View.MemoryView":696
+  /* "View.MemoryView":700
  *     return have_slices or nslices, tuple(result)
  * 
  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):             # <<<<<<<<<<<<<<
@@ -13176,7 +11972,7 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
   return __pyx_r;
 }
 
-/* "View.MemoryView":706
+/* "View.MemoryView":710
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  * @cname('__pyx_memview_slice')
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@@ -13215,9 +12011,12 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   Py_ssize_t __pyx_t_10;
   int __pyx_t_11;
   Py_ssize_t __pyx_t_12;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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-  /* "View.MemoryView":707
+  /* "View.MemoryView":711
  * @cname('__pyx_memview_slice')
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@@ -13227,7 +12026,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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   __pyx_v_suboffset_dim = -1;
 
-  /* "View.MemoryView":714
+  /* "View.MemoryView":718
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  * 
  *     memset(&dst, 0, sizeof(dst))             # <<<<<<<<<<<<<<
@@ -13236,7 +12035,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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   (void)(memset((&__pyx_v_dst), 0, (sizeof(__pyx_v_dst))));
 
-  /* "View.MemoryView":718
+  /* "View.MemoryView":722
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  *     assert memview.view.ndim > 0             # <<<<<<<<<<<<<<
@@ -13247,12 +12046,12 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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       PyErr_SetNone(PyExc_AssertionError);
-      __PYX_ERR(2, 718, __pyx_L1_error)
+      __PYX_ERR(2, 722, __pyx_L1_error)
     }
   }
   #endif
 
-  /* "View.MemoryView":720
+  /* "View.MemoryView":724
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  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -13263,20 +12062,20 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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   if (__pyx_t_2) {
 
-    /* "View.MemoryView":721
+    /* "View.MemoryView":725
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  *     if isinstance(memview, _memoryviewslice):
  *         memviewsliceobj = memview             # <<<<<<<<<<<<<<
  *         p_src = &memviewsliceobj.from_slice
  *     else:
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-    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(2, 721, __pyx_L1_error)
+    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(2, 725, __pyx_L1_error)
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     __pyx_t_3 = 0;
 
-    /* "View.MemoryView":722
+    /* "View.MemoryView":726
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@@ -13285,7 +12084,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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     __pyx_v_p_src = (&__pyx_v_memviewsliceobj->from_slice);
 
-    /* "View.MemoryView":720
+    /* "View.MemoryView":724
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  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -13295,7 +12094,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":724
+  /* "View.MemoryView":728
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@@ -13305,7 +12104,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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-    /* "View.MemoryView":725
+    /* "View.MemoryView":729
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@@ -13316,7 +12115,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   }
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-  /* "View.MemoryView":731
+  /* "View.MemoryView":735
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  * 
  *     dst.memview = p_src.memview             # <<<<<<<<<<<<<<
@@ -13326,7 +12125,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   __pyx_t_4 = __pyx_v_p_src->memview;
   __pyx_v_dst.memview = __pyx_t_4;
 
-  /* "View.MemoryView":732
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  *     dst.memview = p_src.memview
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@@ -13336,7 +12135,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   __pyx_t_5 = __pyx_v_p_src->data;
   __pyx_v_dst.data = __pyx_t_5;
 
-  /* "View.MemoryView":737
+  /* "View.MemoryView":741
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  * 
  *     cdef __Pyx_memviewslice *p_dst = &dst             # <<<<<<<<<<<<<<
@@ -13345,7 +12144,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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   __pyx_v_p_dst = (&__pyx_v_dst);
 
-  /* "View.MemoryView":738
+  /* "View.MemoryView":742
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  *     cdef __Pyx_memviewslice *p_dst = &dst
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@@ -13354,7 +12153,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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-  /* "View.MemoryView":742
+  /* "View.MemoryView":746
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  *     for dim, index in enumerate(indices):             # <<<<<<<<<<<<<<
@@ -13366,26 +12165,26 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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         #endif
       } else {
         if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_9 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_9); __pyx_t_7++; if (unlikely(0 < 0)) __PYX_ERR(2, 742, __pyx_L1_error)
+        __pyx_t_9 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_9); __pyx_t_7++; if (unlikely(0 < 0)) __PYX_ERR(2, 746, __pyx_L1_error)
         #else
-        __pyx_t_9 = PySequence_ITEM(__pyx_t_3, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 742, __pyx_L1_error)
+        __pyx_t_9 = PySequence_ITEM(__pyx_t_3, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 746, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_9);
         #endif
       }
@@ -13395,7 +12194,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(2, 742, __pyx_L1_error)
+          else __PYX_ERR(2, 746, __pyx_L1_error)
         }
         break;
       }
@@ -13406,7 +12205,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     __pyx_v_dim = __pyx_t_6;
     __pyx_t_6 = (__pyx_t_6 + 1);
 
-    /* "View.MemoryView":743
+    /* "View.MemoryView":747
  * 
  *     for dim, index in enumerate(indices):
  *         if PyIndex_Check(index):             # <<<<<<<<<<<<<<
@@ -13416,25 +12215,25 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     __pyx_t_2 = (PyIndex_Check(__pyx_v_index) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":747
+      /* "View.MemoryView":751
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  *                 dim, new_ndim, p_suboffset_dim,
  *                 index, 0, 0, # start, stop, step             # <<<<<<<<<<<<<<
  *                 0, 0, 0, # have_{start,stop,step}
  *                 False)
  */
-      __pyx_t_10 = __Pyx_PyIndex_AsSsize_t(__pyx_v_index); if (unlikely((__pyx_t_10 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 747, __pyx_L1_error)
+      __pyx_t_10 = __Pyx_PyIndex_AsSsize_t(__pyx_v_index); if (unlikely((__pyx_t_10 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 751, __pyx_L1_error)
 
-      /* "View.MemoryView":744
+      /* "View.MemoryView":748
  *     for dim, index in enumerate(indices):
  *         if PyIndex_Check(index):
  *             slice_memviewslice(             # <<<<<<<<<<<<<<
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  *                 dim, new_ndim, p_suboffset_dim,
  */
-      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_t_10, 0, 0, 0, 0, 0, 0); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(2, 744, __pyx_L1_error)
+      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_t_10, 0, 0, 0, 0, 0, 0); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(2, 748, __pyx_L1_error)
 
-      /* "View.MemoryView":743
+      /* "View.MemoryView":747
  * 
  *     for dim, index in enumerate(indices):
  *         if PyIndex_Check(index):             # <<<<<<<<<<<<<<
@@ -13444,7 +12243,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       goto __pyx_L6;
     }
 
-    /* "View.MemoryView":750
+    /* "View.MemoryView":754
  *                 0, 0, 0, # have_{start,stop,step}
  *                 False)
  *         elif index is None:             # <<<<<<<<<<<<<<
@@ -13455,7 +12254,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     __pyx_t_1 = (__pyx_t_2 != 0);
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":751
+      /* "View.MemoryView":755
  *                 False)
  *         elif index is None:
  *             p_dst.shape[new_ndim] = 1             # <<<<<<<<<<<<<<
@@ -13464,7 +12263,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->shape[__pyx_v_new_ndim]) = 1;
 
-      /* "View.MemoryView":752
+      /* "View.MemoryView":756
  *         elif index is None:
  *             p_dst.shape[new_ndim] = 1
  *             p_dst.strides[new_ndim] = 0             # <<<<<<<<<<<<<<
@@ -13473,7 +12272,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->strides[__pyx_v_new_ndim]) = 0;
 
-      /* "View.MemoryView":753
+      /* "View.MemoryView":757
  *             p_dst.shape[new_ndim] = 1
  *             p_dst.strides[new_ndim] = 0
  *             p_dst.suboffsets[new_ndim] = -1             # <<<<<<<<<<<<<<
@@ -13482,7 +12281,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->suboffsets[__pyx_v_new_ndim]) = -1L;
 
-      /* "View.MemoryView":754
+      /* "View.MemoryView":758
  *             p_dst.strides[new_ndim] = 0
  *             p_dst.suboffsets[new_ndim] = -1
  *             new_ndim += 1             # <<<<<<<<<<<<<<
@@ -13491,7 +12290,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       __pyx_v_new_ndim = (__pyx_v_new_ndim + 1);
 
-      /* "View.MemoryView":750
+      /* "View.MemoryView":754
  *                 0, 0, 0, # have_{start,stop,step}
  *                 False)
  *         elif index is None:             # <<<<<<<<<<<<<<
@@ -13501,7 +12300,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       goto __pyx_L6;
     }
 
-    /* "View.MemoryView":756
+    /* "View.MemoryView":760
  *             new_ndim += 1
  *         else:
  *             start = index.start or 0             # <<<<<<<<<<<<<<
@@ -13509,13 +12308,13 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  *             step = index.step or 0
  */
     /*else*/ {
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 756, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 760, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 756, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 760, __pyx_L1_error)
       if (!__pyx_t_1) {
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 756, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 760, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         goto __pyx_L7_bool_binop_done;
@@ -13524,20 +12323,20 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       __pyx_L7_bool_binop_done:;
       __pyx_v_start = __pyx_t_10;
 
-      /* "View.MemoryView":757
+      /* "View.MemoryView":761
  *         else:
  *             start = index.start or 0
  *             stop = index.stop or 0             # <<<<<<<<<<<<<<
  *             step = index.step or 0
  * 
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 757, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 761, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 757, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 761, __pyx_L1_error)
       if (!__pyx_t_1) {
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 757, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 761, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         goto __pyx_L9_bool_binop_done;
@@ -13546,20 +12345,20 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       __pyx_L9_bool_binop_done:;
       __pyx_v_stop = __pyx_t_10;
 
-      /* "View.MemoryView":758
+      /* "View.MemoryView":762
  *             start = index.start or 0
  *             stop = index.stop or 0
  *             step = index.step or 0             # <<<<<<<<<<<<<<
  * 
  *             have_start = index.start is not None
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 758, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 762, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 758, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 762, __pyx_L1_error)
       if (!__pyx_t_1) {
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 758, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 762, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         goto __pyx_L11_bool_binop_done;
@@ -13568,55 +12367,55 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       __pyx_L11_bool_binop_done:;
       __pyx_v_step = __pyx_t_10;
 
-      /* "View.MemoryView":760
+      /* "View.MemoryView":764
  *             step = index.step or 0
  * 
  *             have_start = index.start is not None             # <<<<<<<<<<<<<<
  *             have_stop = index.stop is not None
  *             have_step = index.step is not None
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 760, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 764, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
       __pyx_t_1 = (__pyx_t_9 != Py_None);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_v_have_start = __pyx_t_1;
 
-      /* "View.MemoryView":761
+      /* "View.MemoryView":765
  * 
  *             have_start = index.start is not None
  *             have_stop = index.stop is not None             # <<<<<<<<<<<<<<
  *             have_step = index.step is not None
  * 
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 761, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 765, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
       __pyx_t_1 = (__pyx_t_9 != Py_None);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_v_have_stop = __pyx_t_1;
 
-      /* "View.MemoryView":762
+      /* "View.MemoryView":766
  *             have_start = index.start is not None
  *             have_stop = index.stop is not None
  *             have_step = index.step is not None             # <<<<<<<<<<<<<<
  * 
  *             slice_memviewslice(
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 762, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 766, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
       __pyx_t_1 = (__pyx_t_9 != Py_None);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_v_have_step = __pyx_t_1;
 
-      /* "View.MemoryView":764
+      /* "View.MemoryView":768
  *             have_step = index.step is not None
  * 
  *             slice_memviewslice(             # <<<<<<<<<<<<<<
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  *                 dim, new_ndim, p_suboffset_dim,
  */
-      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_v_start, __pyx_v_stop, __pyx_v_step, __pyx_v_have_start, __pyx_v_have_stop, __pyx_v_have_step, 1); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(2, 764, __pyx_L1_error)
+      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_v_start, __pyx_v_stop, __pyx_v_step, __pyx_v_have_start, __pyx_v_have_stop, __pyx_v_have_step, 1); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(2, 768, __pyx_L1_error)
 
-      /* "View.MemoryView":770
+      /* "View.MemoryView":774
  *                 have_start, have_stop, have_step,
  *                 True)
  *             new_ndim += 1             # <<<<<<<<<<<<<<
@@ -13627,7 +12426,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     }
     __pyx_L6:;
 
-    /* "View.MemoryView":742
+    /* "View.MemoryView":746
  *     cdef bint have_start, have_stop, have_step
  * 
  *     for dim, index in enumerate(indices):             # <<<<<<<<<<<<<<
@@ -13637,7 +12436,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   }
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "View.MemoryView":772
+  /* "View.MemoryView":776
  *             new_ndim += 1
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -13648,7 +12447,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":773
+    /* "View.MemoryView":777
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,             # <<<<<<<<<<<<<<
@@ -13657,39 +12456,39 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
     __Pyx_XDECREF(((PyObject *)__pyx_r));
 
-    /* "View.MemoryView":774
+    /* "View.MemoryView":778
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,
  *                                     memviewsliceobj.to_object_func,             # <<<<<<<<<<<<<<
  *                                     memviewsliceobj.to_dtype_func,
  *                                     memview.dtype_is_object)
  */
-    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(2, 774, __pyx_L1_error) }
+    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(2, 778, __pyx_L1_error) }
 
-    /* "View.MemoryView":775
+    /* "View.MemoryView":779
  *         return memoryview_fromslice(dst, new_ndim,
  *                                     memviewsliceobj.to_object_func,
  *                                     memviewsliceobj.to_dtype_func,             # <<<<<<<<<<<<<<
  *                                     memview.dtype_is_object)
  *     else:
  */
-    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(2, 775, __pyx_L1_error) }
+    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(2, 779, __pyx_L1_error) }
 
-    /* "View.MemoryView":773
+    /* "View.MemoryView":777
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,             # <<<<<<<<<<<<<<
  *                                     memviewsliceobj.to_object_func,
  *                                     memviewsliceobj.to_dtype_func,
  */
-    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, __pyx_v_memviewsliceobj->to_object_func, __pyx_v_memviewsliceobj->to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 773, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, __pyx_v_memviewsliceobj->to_object_func, __pyx_v_memviewsliceobj->to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 777, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(2, 773, __pyx_L1_error)
+    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(2, 777, __pyx_L1_error)
     __pyx_r = ((struct __pyx_memoryview_obj *)__pyx_t_3);
     __pyx_t_3 = 0;
     goto __pyx_L0;
 
-    /* "View.MemoryView":772
+    /* "View.MemoryView":776
  *             new_ndim += 1
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -13698,7 +12497,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
   }
 
-  /* "View.MemoryView":778
+  /* "View.MemoryView":782
  *                                     memview.dtype_is_object)
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,             # <<<<<<<<<<<<<<
@@ -13708,30 +12507,30 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   /*else*/ {
     __Pyx_XDECREF(((PyObject *)__pyx_r));
 
-    /* "View.MemoryView":779
+    /* "View.MemoryView":783
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,
  *                                     memview.dtype_is_object)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, NULL, NULL, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 778, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, NULL, NULL, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 782, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
 
-    /* "View.MemoryView":778
+    /* "View.MemoryView":782
  *                                     memview.dtype_is_object)
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,             # <<<<<<<<<<<<<<
  *                                     memview.dtype_is_object)
  * 
  */
-    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(2, 778, __pyx_L1_error)
+    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(2, 782, __pyx_L1_error)
     __pyx_r = ((struct __pyx_memoryview_obj *)__pyx_t_3);
     __pyx_t_3 = 0;
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":706
+  /* "View.MemoryView":710
  * 
  * @cname('__pyx_memview_slice')
  * cdef memoryview memview_slice(memoryview memview, object indices):             # <<<<<<<<<<<<<<
@@ -13753,7 +12552,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   return __pyx_r;
 }
 
-/* "View.MemoryView":803
+/* "View.MemoryView":807
  * 
  * @cname('__pyx_memoryview_slice_memviewslice')
  * cdef int slice_memviewslice(             # <<<<<<<<<<<<<<
@@ -13768,8 +12567,11 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   int __pyx_t_1;
   int __pyx_t_2;
   int __pyx_t_3;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
-  /* "View.MemoryView":823
+  /* "View.MemoryView":827
  *     cdef bint negative_step
  * 
  *     if not is_slice:             # <<<<<<<<<<<<<<
@@ -13779,7 +12581,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_t_1 = ((!(__pyx_v_is_slice != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":825
+    /* "View.MemoryView":829
  *     if not is_slice:
  * 
  *         if start < 0:             # <<<<<<<<<<<<<<
@@ -13789,7 +12591,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_1 = ((__pyx_v_start < 0) != 0);
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":826
+      /* "View.MemoryView":830
  * 
  *         if start < 0:
  *             start += shape             # <<<<<<<<<<<<<<
@@ -13798,7 +12600,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_start = (__pyx_v_start + __pyx_v_shape);
 
-      /* "View.MemoryView":825
+      /* "View.MemoryView":829
  *     if not is_slice:
  * 
  *         if start < 0:             # <<<<<<<<<<<<<<
@@ -13807,7 +12609,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":827
+    /* "View.MemoryView":831
  *         if start < 0:
  *             start += shape
  *         if not 0 <= start < shape:             # <<<<<<<<<<<<<<
@@ -13821,16 +12623,16 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = ((!(__pyx_t_1 != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":828
+      /* "View.MemoryView":832
  *             start += shape
  *         if not 0 <= start < shape:
  *             _err_dim(IndexError, "Index out of bounds (axis %d)", dim)             # <<<<<<<<<<<<<<
  *     else:
  * 
  */
-      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"Index out of bounds (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 828, __pyx_L1_error)
+      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"Index out of bounds (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 832, __pyx_L1_error)
 
-      /* "View.MemoryView":827
+      /* "View.MemoryView":831
  *         if start < 0:
  *             start += shape
  *         if not 0 <= start < shape:             # <<<<<<<<<<<<<<
@@ -13839,7 +12641,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":823
+    /* "View.MemoryView":827
  *     cdef bint negative_step
  * 
  *     if not is_slice:             # <<<<<<<<<<<<<<
@@ -13849,7 +12651,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":831
+  /* "View.MemoryView":835
  *     else:
  * 
  *         negative_step = have_step != 0 and step < 0             # <<<<<<<<<<<<<<
@@ -13868,7 +12670,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_L6_bool_binop_done:;
     __pyx_v_negative_step = __pyx_t_2;
 
-    /* "View.MemoryView":833
+    /* "View.MemoryView":837
  *         negative_step = have_step != 0 and step < 0
  * 
  *         if have_step and step == 0:             # <<<<<<<<<<<<<<
@@ -13886,16 +12688,16 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_L9_bool_binop_done:;
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":834
+      /* "View.MemoryView":838
  * 
  *         if have_step and step == 0:
  *             _err_dim(ValueError, "Step may not be zero (axis %d)", dim)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Step may not be zero (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 834, __pyx_L1_error)
+      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Step may not be zero (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 838, __pyx_L1_error)
 
-      /* "View.MemoryView":833
+      /* "View.MemoryView":837
  *         negative_step = have_step != 0 and step < 0
  * 
  *         if have_step and step == 0:             # <<<<<<<<<<<<<<
@@ -13904,7 +12706,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":837
+    /* "View.MemoryView":841
  * 
  * 
  *         if have_start:             # <<<<<<<<<<<<<<
@@ -13914,7 +12716,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (__pyx_v_have_start != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":838
+      /* "View.MemoryView":842
  * 
  *         if have_start:
  *             if start < 0:             # <<<<<<<<<<<<<<
@@ -13924,7 +12726,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_start < 0) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":839
+        /* "View.MemoryView":843
  *         if have_start:
  *             if start < 0:
  *                 start += shape             # <<<<<<<<<<<<<<
@@ -13933,7 +12735,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_start = (__pyx_v_start + __pyx_v_shape);
 
-        /* "View.MemoryView":840
+        /* "View.MemoryView":844
  *             if start < 0:
  *                 start += shape
  *                 if start < 0:             # <<<<<<<<<<<<<<
@@ -13943,7 +12745,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         __pyx_t_2 = ((__pyx_v_start < 0) != 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":841
+          /* "View.MemoryView":845
  *                 start += shape
  *                 if start < 0:
  *                     start = 0             # <<<<<<<<<<<<<<
@@ -13952,7 +12754,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_start = 0;
 
-          /* "View.MemoryView":840
+          /* "View.MemoryView":844
  *             if start < 0:
  *                 start += shape
  *                 if start < 0:             # <<<<<<<<<<<<<<
@@ -13961,7 +12763,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         }
 
-        /* "View.MemoryView":838
+        /* "View.MemoryView":842
  * 
  *         if have_start:
  *             if start < 0:             # <<<<<<<<<<<<<<
@@ -13971,7 +12773,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L12;
       }
 
-      /* "View.MemoryView":842
+      /* "View.MemoryView":846
  *                 if start < 0:
  *                     start = 0
  *             elif start >= shape:             # <<<<<<<<<<<<<<
@@ -13981,7 +12783,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_start >= __pyx_v_shape) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":843
+        /* "View.MemoryView":847
  *                     start = 0
  *             elif start >= shape:
  *                 if negative_step:             # <<<<<<<<<<<<<<
@@ -13991,7 +12793,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         __pyx_t_2 = (__pyx_v_negative_step != 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":844
+          /* "View.MemoryView":848
  *             elif start >= shape:
  *                 if negative_step:
  *                     start = shape - 1             # <<<<<<<<<<<<<<
@@ -14000,7 +12802,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_start = (__pyx_v_shape - 1);
 
-          /* "View.MemoryView":843
+          /* "View.MemoryView":847
  *                     start = 0
  *             elif start >= shape:
  *                 if negative_step:             # <<<<<<<<<<<<<<
@@ -14010,7 +12812,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
           goto __pyx_L14;
         }
 
-        /* "View.MemoryView":846
+        /* "View.MemoryView":850
  *                     start = shape - 1
  *                 else:
  *                     start = shape             # <<<<<<<<<<<<<<
@@ -14022,7 +12824,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         }
         __pyx_L14:;
 
-        /* "View.MemoryView":842
+        /* "View.MemoryView":846
  *                 if start < 0:
  *                     start = 0
  *             elif start >= shape:             # <<<<<<<<<<<<<<
@@ -14032,7 +12834,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       }
       __pyx_L12:;
 
-      /* "View.MemoryView":837
+      /* "View.MemoryView":841
  * 
  * 
  *         if have_start:             # <<<<<<<<<<<<<<
@@ -14042,7 +12844,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       goto __pyx_L11;
     }
 
-    /* "View.MemoryView":848
+    /* "View.MemoryView":852
  *                     start = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -14053,7 +12855,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = (__pyx_v_negative_step != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":849
+        /* "View.MemoryView":853
  *         else:
  *             if negative_step:
  *                 start = shape - 1             # <<<<<<<<<<<<<<
@@ -14062,7 +12864,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_start = (__pyx_v_shape - 1);
 
-        /* "View.MemoryView":848
+        /* "View.MemoryView":852
  *                     start = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -14072,7 +12874,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L15;
       }
 
-      /* "View.MemoryView":851
+      /* "View.MemoryView":855
  *                 start = shape - 1
  *             else:
  *                 start = 0             # <<<<<<<<<<<<<<
@@ -14086,7 +12888,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     }
     __pyx_L11:;
 
-    /* "View.MemoryView":853
+    /* "View.MemoryView":857
  *                 start = 0
  * 
  *         if have_stop:             # <<<<<<<<<<<<<<
@@ -14096,7 +12898,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (__pyx_v_have_stop != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":854
+      /* "View.MemoryView":858
  * 
  *         if have_stop:
  *             if stop < 0:             # <<<<<<<<<<<<<<
@@ -14106,7 +12908,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_stop < 0) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":855
+        /* "View.MemoryView":859
  *         if have_stop:
  *             if stop < 0:
  *                 stop += shape             # <<<<<<<<<<<<<<
@@ -14115,7 +12917,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = (__pyx_v_stop + __pyx_v_shape);
 
-        /* "View.MemoryView":856
+        /* "View.MemoryView":860
  *             if stop < 0:
  *                 stop += shape
  *                 if stop < 0:             # <<<<<<<<<<<<<<
@@ -14125,7 +12927,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         __pyx_t_2 = ((__pyx_v_stop < 0) != 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":857
+          /* "View.MemoryView":861
  *                 stop += shape
  *                 if stop < 0:
  *                     stop = 0             # <<<<<<<<<<<<<<
@@ -14134,7 +12936,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_stop = 0;
 
-          /* "View.MemoryView":856
+          /* "View.MemoryView":860
  *             if stop < 0:
  *                 stop += shape
  *                 if stop < 0:             # <<<<<<<<<<<<<<
@@ -14143,7 +12945,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         }
 
-        /* "View.MemoryView":854
+        /* "View.MemoryView":858
  * 
  *         if have_stop:
  *             if stop < 0:             # <<<<<<<<<<<<<<
@@ -14153,7 +12955,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L17;
       }
 
-      /* "View.MemoryView":858
+      /* "View.MemoryView":862
  *                 if stop < 0:
  *                     stop = 0
  *             elif stop > shape:             # <<<<<<<<<<<<<<
@@ -14163,7 +12965,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_stop > __pyx_v_shape) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":859
+        /* "View.MemoryView":863
  *                     stop = 0
  *             elif stop > shape:
  *                 stop = shape             # <<<<<<<<<<<<<<
@@ -14172,7 +12974,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = __pyx_v_shape;
 
-        /* "View.MemoryView":858
+        /* "View.MemoryView":862
  *                 if stop < 0:
  *                     stop = 0
  *             elif stop > shape:             # <<<<<<<<<<<<<<
@@ -14182,7 +12984,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       }
       __pyx_L17:;
 
-      /* "View.MemoryView":853
+      /* "View.MemoryView":857
  *                 start = 0
  * 
  *         if have_stop:             # <<<<<<<<<<<<<<
@@ -14192,7 +12994,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       goto __pyx_L16;
     }
 
-    /* "View.MemoryView":861
+    /* "View.MemoryView":865
  *                 stop = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -14203,7 +13005,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = (__pyx_v_negative_step != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":862
+        /* "View.MemoryView":866
  *         else:
  *             if negative_step:
  *                 stop = -1             # <<<<<<<<<<<<<<
@@ -14212,7 +13014,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = -1L;
 
-        /* "View.MemoryView":861
+        /* "View.MemoryView":865
  *                 stop = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -14222,7 +13024,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L19;
       }
 
-      /* "View.MemoryView":864
+      /* "View.MemoryView":868
  *                 stop = -1
  *             else:
  *                 stop = shape             # <<<<<<<<<<<<<<
@@ -14236,7 +13038,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     }
     __pyx_L16:;
 
-    /* "View.MemoryView":866
+    /* "View.MemoryView":870
  *                 stop = shape
  * 
  *         if not have_step:             # <<<<<<<<<<<<<<
@@ -14246,7 +13048,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = ((!(__pyx_v_have_step != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":867
+      /* "View.MemoryView":871
  * 
  *         if not have_step:
  *             step = 1             # <<<<<<<<<<<<<<
@@ -14255,7 +13057,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_step = 1;
 
-      /* "View.MemoryView":866
+      /* "View.MemoryView":870
  *                 stop = shape
  * 
  *         if not have_step:             # <<<<<<<<<<<<<<
@@ -14264,7 +13066,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":871
+    /* "View.MemoryView":875
  * 
  *         with cython.cdivision(True):
  *             new_shape = (stop - start) // step             # <<<<<<<<<<<<<<
@@ -14273,7 +13075,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     __pyx_v_new_shape = ((__pyx_v_stop - __pyx_v_start) / __pyx_v_step);
 
-    /* "View.MemoryView":873
+    /* "View.MemoryView":877
  *             new_shape = (stop - start) // step
  * 
  *             if (stop - start) - step * new_shape:             # <<<<<<<<<<<<<<
@@ -14283,7 +13085,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (((__pyx_v_stop - __pyx_v_start) - (__pyx_v_step * __pyx_v_new_shape)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":874
+      /* "View.MemoryView":878
  * 
  *             if (stop - start) - step * new_shape:
  *                 new_shape += 1             # <<<<<<<<<<<<<<
@@ -14292,7 +13094,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_new_shape = (__pyx_v_new_shape + 1);
 
-      /* "View.MemoryView":873
+      /* "View.MemoryView":877
  *             new_shape = (stop - start) // step
  * 
  *             if (stop - start) - step * new_shape:             # <<<<<<<<<<<<<<
@@ -14301,7 +13103,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":876
+    /* "View.MemoryView":880
  *                 new_shape += 1
  * 
  *         if new_shape < 0:             # <<<<<<<<<<<<<<
@@ -14311,7 +13113,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = ((__pyx_v_new_shape < 0) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":877
+      /* "View.MemoryView":881
  * 
  *         if new_shape < 0:
  *             new_shape = 0             # <<<<<<<<<<<<<<
@@ -14320,7 +13122,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_new_shape = 0;
 
-      /* "View.MemoryView":876
+      /* "View.MemoryView":880
  *                 new_shape += 1
  * 
  *         if new_shape < 0:             # <<<<<<<<<<<<<<
@@ -14329,7 +13131,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":880
+    /* "View.MemoryView":884
  * 
  * 
  *         dst.strides[new_ndim] = stride * step             # <<<<<<<<<<<<<<
@@ -14338,7 +13140,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     (__pyx_v_dst->strides[__pyx_v_new_ndim]) = (__pyx_v_stride * __pyx_v_step);
 
-    /* "View.MemoryView":881
+    /* "View.MemoryView":885
  * 
  *         dst.strides[new_ndim] = stride * step
  *         dst.shape[new_ndim] = new_shape             # <<<<<<<<<<<<<<
@@ -14347,7 +13149,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     (__pyx_v_dst->shape[__pyx_v_new_ndim]) = __pyx_v_new_shape;
 
-    /* "View.MemoryView":882
+    /* "View.MemoryView":886
  *         dst.strides[new_ndim] = stride * step
  *         dst.shape[new_ndim] = new_shape
  *         dst.suboffsets[new_ndim] = suboffset             # <<<<<<<<<<<<<<
@@ -14358,7 +13160,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":885
+  /* "View.MemoryView":889
  * 
  * 
  *     if suboffset_dim[0] < 0:             # <<<<<<<<<<<<<<
@@ -14368,7 +13170,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_t_2 = (((__pyx_v_suboffset_dim[0]) < 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":886
+    /* "View.MemoryView":890
  * 
  *     if suboffset_dim[0] < 0:
  *         dst.data += start * stride             # <<<<<<<<<<<<<<
@@ -14377,7 +13179,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     __pyx_v_dst->data = (__pyx_v_dst->data + (__pyx_v_start * __pyx_v_stride));
 
-    /* "View.MemoryView":885
+    /* "View.MemoryView":889
  * 
  * 
  *     if suboffset_dim[0] < 0:             # <<<<<<<<<<<<<<
@@ -14387,7 +13189,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     goto __pyx_L23;
   }
 
-  /* "View.MemoryView":888
+  /* "View.MemoryView":892
  *         dst.data += start * stride
  *     else:
  *         dst.suboffsets[suboffset_dim[0]] += start * stride             # <<<<<<<<<<<<<<
@@ -14400,7 +13202,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   }
   __pyx_L23:;
 
-  /* "View.MemoryView":890
+  /* "View.MemoryView":894
  *         dst.suboffsets[suboffset_dim[0]] += start * stride
  * 
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -14410,7 +13212,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_t_2 = ((__pyx_v_suboffset >= 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":891
+    /* "View.MemoryView":895
  * 
  *     if suboffset >= 0:
  *         if not is_slice:             # <<<<<<<<<<<<<<
@@ -14420,7 +13222,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = ((!(__pyx_v_is_slice != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":892
+      /* "View.MemoryView":896
  *     if suboffset >= 0:
  *         if not is_slice:
  *             if new_ndim == 0:             # <<<<<<<<<<<<<<
@@ -14430,7 +13232,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_new_ndim == 0) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":893
+        /* "View.MemoryView":897
  *         if not is_slice:
  *             if new_ndim == 0:
  *                 dst.data = (<char **> dst.data)[0] + suboffset             # <<<<<<<<<<<<<<
@@ -14439,7 +13241,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_dst->data = ((((char **)__pyx_v_dst->data)[0]) + __pyx_v_suboffset);
 
-        /* "View.MemoryView":892
+        /* "View.MemoryView":896
  *     if suboffset >= 0:
  *         if not is_slice:
  *             if new_ndim == 0:             # <<<<<<<<<<<<<<
@@ -14449,7 +13251,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L26;
       }
 
-      /* "View.MemoryView":895
+      /* "View.MemoryView":899
  *                 dst.data = (<char **> dst.data)[0] + suboffset
  *             else:
  *                 _err_dim(IndexError, "All dimensions preceding dimension %d "             # <<<<<<<<<<<<<<
@@ -14458,18 +13260,18 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       /*else*/ {
 
-        /* "View.MemoryView":896
+        /* "View.MemoryView":900
  *             else:
  *                 _err_dim(IndexError, "All dimensions preceding dimension %d "
  *                                      "must be indexed and not sliced", dim)             # <<<<<<<<<<<<<<
  *         else:
  *             suboffset_dim[0] = new_ndim
  */
-        __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"All dimensions preceding dimension %d must be indexed and not sliced"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 895, __pyx_L1_error)
+        __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"All dimensions preceding dimension %d must be indexed and not sliced"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 899, __pyx_L1_error)
       }
       __pyx_L26:;
 
-      /* "View.MemoryView":891
+      /* "View.MemoryView":895
  * 
  *     if suboffset >= 0:
  *         if not is_slice:             # <<<<<<<<<<<<<<
@@ -14479,7 +13281,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       goto __pyx_L25;
     }
 
-    /* "View.MemoryView":898
+    /* "View.MemoryView":902
  *                                      "must be indexed and not sliced", dim)
  *         else:
  *             suboffset_dim[0] = new_ndim             # <<<<<<<<<<<<<<
@@ -14491,7 +13293,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     }
     __pyx_L25:;
 
-    /* "View.MemoryView":890
+    /* "View.MemoryView":894
  *         dst.suboffsets[suboffset_dim[0]] += start * stride
  * 
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -14500,7 +13302,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
   }
 
-  /* "View.MemoryView":900
+  /* "View.MemoryView":904
  *             suboffset_dim[0] = new_ndim
  * 
  *     return 0             # <<<<<<<<<<<<<<
@@ -14510,7 +13312,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_r = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":803
+  /* "View.MemoryView":807
  * 
  * @cname('__pyx_memoryview_slice_memviewslice')
  * cdef int slice_memviewslice(             # <<<<<<<<<<<<<<
@@ -14534,7 +13336,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   return __pyx_r;
 }
 
-/* "View.MemoryView":906
+/* "View.MemoryView":910
  * 
  * @cname('__pyx_pybuffer_index')
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,             # <<<<<<<<<<<<<<
@@ -14554,9 +13356,12 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("pybuffer_index", 0);
 
-  /* "View.MemoryView":908
+  /* "View.MemoryView":912
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,
  *                           Py_ssize_t dim) except NULL:
  *     cdef Py_ssize_t shape, stride, suboffset = -1             # <<<<<<<<<<<<<<
@@ -14565,7 +13370,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   __pyx_v_suboffset = -1L;
 
-  /* "View.MemoryView":909
+  /* "View.MemoryView":913
  *                           Py_ssize_t dim) except NULL:
  *     cdef Py_ssize_t shape, stride, suboffset = -1
  *     cdef Py_ssize_t itemsize = view.itemsize             # <<<<<<<<<<<<<<
@@ -14575,7 +13380,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_1 = __pyx_v_view->itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":912
+  /* "View.MemoryView":916
  *     cdef char *resultp
  * 
  *     if view.ndim == 0:             # <<<<<<<<<<<<<<
@@ -14585,7 +13390,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_2 = ((__pyx_v_view->ndim == 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":913
+    /* "View.MemoryView":917
  * 
  *     if view.ndim == 0:
  *         shape = view.len / itemsize             # <<<<<<<<<<<<<<
@@ -14594,15 +13399,15 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     if (unlikely(__pyx_v_itemsize == 0)) {
       PyErr_SetString(PyExc_ZeroDivisionError, "integer division or modulo by zero");
-      __PYX_ERR(2, 913, __pyx_L1_error)
+      __PYX_ERR(2, 917, __pyx_L1_error)
     }
     else if (sizeof(Py_ssize_t) == sizeof(long) && (!(((Py_ssize_t)-1) > 0)) && unlikely(__pyx_v_itemsize == (Py_ssize_t)-1)  && unlikely(UNARY_NEG_WOULD_OVERFLOW(__pyx_v_view->len))) {
       PyErr_SetString(PyExc_OverflowError, "value too large to perform division");
-      __PYX_ERR(2, 913, __pyx_L1_error)
+      __PYX_ERR(2, 917, __pyx_L1_error)
     }
     __pyx_v_shape = __Pyx_div_Py_ssize_t(__pyx_v_view->len, __pyx_v_itemsize);
 
-    /* "View.MemoryView":914
+    /* "View.MemoryView":918
  *     if view.ndim == 0:
  *         shape = view.len / itemsize
  *         stride = itemsize             # <<<<<<<<<<<<<<
@@ -14611,7 +13416,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_stride = __pyx_v_itemsize;
 
-    /* "View.MemoryView":912
+    /* "View.MemoryView":916
  *     cdef char *resultp
  * 
  *     if view.ndim == 0:             # <<<<<<<<<<<<<<
@@ -14621,7 +13426,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":916
+  /* "View.MemoryView":920
  *         stride = itemsize
  *     else:
  *         shape = view.shape[dim]             # <<<<<<<<<<<<<<
@@ -14631,7 +13436,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   /*else*/ {
     __pyx_v_shape = (__pyx_v_view->shape[__pyx_v_dim]);
 
-    /* "View.MemoryView":917
+    /* "View.MemoryView":921
  *     else:
  *         shape = view.shape[dim]
  *         stride = view.strides[dim]             # <<<<<<<<<<<<<<
@@ -14640,7 +13445,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_stride = (__pyx_v_view->strides[__pyx_v_dim]);
 
-    /* "View.MemoryView":918
+    /* "View.MemoryView":922
  *         shape = view.shape[dim]
  *         stride = view.strides[dim]
  *         if view.suboffsets != NULL:             # <<<<<<<<<<<<<<
@@ -14650,7 +13455,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
     __pyx_t_2 = ((__pyx_v_view->suboffsets != NULL) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":919
+      /* "View.MemoryView":923
  *         stride = view.strides[dim]
  *         if view.suboffsets != NULL:
  *             suboffset = view.suboffsets[dim]             # <<<<<<<<<<<<<<
@@ -14659,7 +13464,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
       __pyx_v_suboffset = (__pyx_v_view->suboffsets[__pyx_v_dim]);
 
-      /* "View.MemoryView":918
+      /* "View.MemoryView":922
  *         shape = view.shape[dim]
  *         stride = view.strides[dim]
  *         if view.suboffsets != NULL:             # <<<<<<<<<<<<<<
@@ -14670,7 +13475,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":921
+  /* "View.MemoryView":925
  *             suboffset = view.suboffsets[dim]
  * 
  *     if index < 0:             # <<<<<<<<<<<<<<
@@ -14680,7 +13485,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_2 = ((__pyx_v_index < 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":922
+    /* "View.MemoryView":926
  * 
  *     if index < 0:
  *         index += view.shape[dim]             # <<<<<<<<<<<<<<
@@ -14689,7 +13494,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_index = (__pyx_v_index + (__pyx_v_view->shape[__pyx_v_dim]));
 
-    /* "View.MemoryView":923
+    /* "View.MemoryView":927
  *     if index < 0:
  *         index += view.shape[dim]
  *         if index < 0:             # <<<<<<<<<<<<<<
@@ -14699,26 +13504,26 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
     __pyx_t_2 = ((__pyx_v_index < 0) != 0);
     if (unlikely(__pyx_t_2)) {
 
-      /* "View.MemoryView":924
+      /* "View.MemoryView":928
  *         index += view.shape[dim]
  *         if index < 0:
  *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)             # <<<<<<<<<<<<<<
  * 
  *     if index >= shape:
  */
-      __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 924, __pyx_L1_error)
+      __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 928, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 924, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 928, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 924, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 928, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_Raise(__pyx_t_3, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __PYX_ERR(2, 924, __pyx_L1_error)
+      __PYX_ERR(2, 928, __pyx_L1_error)
 
-      /* "View.MemoryView":923
+      /* "View.MemoryView":927
  *     if index < 0:
  *         index += view.shape[dim]
  *         if index < 0:             # <<<<<<<<<<<<<<
@@ -14727,7 +13532,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     }
 
-    /* "View.MemoryView":921
+    /* "View.MemoryView":925
  *             suboffset = view.suboffsets[dim]
  * 
  *     if index < 0:             # <<<<<<<<<<<<<<
@@ -14736,7 +13541,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   }
 
-  /* "View.MemoryView":926
+  /* "View.MemoryView":930
  *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
  * 
  *     if index >= shape:             # <<<<<<<<<<<<<<
@@ -14746,26 +13551,26 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_2 = ((__pyx_v_index >= __pyx_v_shape) != 0);
   if (unlikely(__pyx_t_2)) {
 
-    /* "View.MemoryView":927
+    /* "View.MemoryView":931
  * 
  *     if index >= shape:
  *         raise IndexError("Out of bounds on buffer access (axis %d)" % dim)             # <<<<<<<<<<<<<<
  * 
  *     resultp = bufp + index * stride
  */
-    __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 927, __pyx_L1_error)
+    __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 931, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 927, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 931, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 927, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 931, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_Raise(__pyx_t_3, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __PYX_ERR(2, 927, __pyx_L1_error)
+    __PYX_ERR(2, 931, __pyx_L1_error)
 
-    /* "View.MemoryView":926
+    /* "View.MemoryView":930
  *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
  * 
  *     if index >= shape:             # <<<<<<<<<<<<<<
@@ -14774,7 +13579,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   }
 
-  /* "View.MemoryView":929
+  /* "View.MemoryView":933
  *         raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
  * 
  *     resultp = bufp + index * stride             # <<<<<<<<<<<<<<
@@ -14783,7 +13588,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   __pyx_v_resultp = (__pyx_v_bufp + (__pyx_v_index * __pyx_v_stride));
 
-  /* "View.MemoryView":930
+  /* "View.MemoryView":934
  * 
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -14793,7 +13598,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_2 = ((__pyx_v_suboffset >= 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":931
+    /* "View.MemoryView":935
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:
  *         resultp = (<char **> resultp)[0] + suboffset             # <<<<<<<<<<<<<<
@@ -14802,7 +13607,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_resultp = ((((char **)__pyx_v_resultp)[0]) + __pyx_v_suboffset);
 
-    /* "View.MemoryView":930
+    /* "View.MemoryView":934
  * 
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -14811,7 +13616,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   }
 
-  /* "View.MemoryView":933
+  /* "View.MemoryView":937
  *         resultp = (<char **> resultp)[0] + suboffset
  * 
  *     return resultp             # <<<<<<<<<<<<<<
@@ -14821,7 +13626,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_r = __pyx_v_resultp;
   goto __pyx_L0;
 
-  /* "View.MemoryView":906
+  /* "View.MemoryView":910
  * 
  * @cname('__pyx_pybuffer_index')
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,             # <<<<<<<<<<<<<<
@@ -14840,7 +13645,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   return __pyx_r;
 }
 
-/* "View.MemoryView":939
+/* "View.MemoryView":943
  * 
  * @cname('__pyx_memslice_transpose')
  * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:             # <<<<<<<<<<<<<<
@@ -14864,8 +13669,11 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   int __pyx_t_7;
   int __pyx_t_8;
   int __pyx_t_9;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
-  /* "View.MemoryView":940
+  /* "View.MemoryView":944
  * @cname('__pyx_memslice_transpose')
  * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:
  *     cdef int ndim = memslice.memview.view.ndim             # <<<<<<<<<<<<<<
@@ -14875,7 +13683,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_1 = __pyx_v_memslice->memview->view.ndim;
   __pyx_v_ndim = __pyx_t_1;
 
-  /* "View.MemoryView":942
+  /* "View.MemoryView":946
  *     cdef int ndim = memslice.memview.view.ndim
  * 
  *     cdef Py_ssize_t *shape = memslice.shape             # <<<<<<<<<<<<<<
@@ -14885,7 +13693,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_2 = __pyx_v_memslice->shape;
   __pyx_v_shape = __pyx_t_2;
 
-  /* "View.MemoryView":943
+  /* "View.MemoryView":947
  * 
  *     cdef Py_ssize_t *shape = memslice.shape
  *     cdef Py_ssize_t *strides = memslice.strides             # <<<<<<<<<<<<<<
@@ -14895,7 +13703,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_2 = __pyx_v_memslice->strides;
   __pyx_v_strides = __pyx_t_2;
 
-  /* "View.MemoryView":947
+  /* "View.MemoryView":951
  * 
  *     cdef int i, j
  *     for i in range(ndim / 2):             # <<<<<<<<<<<<<<
@@ -14907,7 +13715,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   for (__pyx_t_1 = 0; __pyx_t_1 < __pyx_t_4; __pyx_t_1+=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":948
+    /* "View.MemoryView":952
  *     cdef int i, j
  *     for i in range(ndim / 2):
  *         j = ndim - 1 - i             # <<<<<<<<<<<<<<
@@ -14916,7 +13724,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
  */
     __pyx_v_j = ((__pyx_v_ndim - 1) - __pyx_v_i);
 
-    /* "View.MemoryView":949
+    /* "View.MemoryView":953
  *     for i in range(ndim / 2):
  *         j = ndim - 1 - i
  *         strides[i], strides[j] = strides[j], strides[i]             # <<<<<<<<<<<<<<
@@ -14928,7 +13736,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     (__pyx_v_strides[__pyx_v_i]) = __pyx_t_5;
     (__pyx_v_strides[__pyx_v_j]) = __pyx_t_6;
 
-    /* "View.MemoryView":950
+    /* "View.MemoryView":954
  *         j = ndim - 1 - i
  *         strides[i], strides[j] = strides[j], strides[i]
  *         shape[i], shape[j] = shape[j], shape[i]             # <<<<<<<<<<<<<<
@@ -14940,7 +13748,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     (__pyx_v_shape[__pyx_v_i]) = __pyx_t_6;
     (__pyx_v_shape[__pyx_v_j]) = __pyx_t_5;
 
-    /* "View.MemoryView":952
+    /* "View.MemoryView":956
  *         shape[i], shape[j] = shape[j], shape[i]
  * 
  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:             # <<<<<<<<<<<<<<
@@ -14958,16 +13766,16 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     __pyx_L6_bool_binop_done:;
     if (__pyx_t_7) {
 
-      /* "View.MemoryView":953
+      /* "View.MemoryView":957
  * 
  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:
  *             _err(ValueError, "Cannot transpose memoryview with indirect dimensions")             # <<<<<<<<<<<<<<
  * 
  *     return 1
  */
-      __pyx_t_9 = __pyx_memoryview_err(__pyx_builtin_ValueError, ((char *)"Cannot transpose memoryview with indirect dimensions")); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 953, __pyx_L1_error)
+      __pyx_t_9 = __pyx_memoryview_err(__pyx_builtin_ValueError, ((char *)"Cannot transpose memoryview with indirect dimensions")); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 957, __pyx_L1_error)
 
-      /* "View.MemoryView":952
+      /* "View.MemoryView":956
  *         shape[i], shape[j] = shape[j], shape[i]
  * 
  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:             # <<<<<<<<<<<<<<
@@ -14977,7 +13785,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     }
   }
 
-  /* "View.MemoryView":955
+  /* "View.MemoryView":959
  *             _err(ValueError, "Cannot transpose memoryview with indirect dimensions")
  * 
  *     return 1             # <<<<<<<<<<<<<<
@@ -14987,7 +13795,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_r = 1;
   goto __pyx_L0;
 
-  /* "View.MemoryView":939
+  /* "View.MemoryView":943
  * 
  * @cname('__pyx_memslice_transpose')
  * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:             # <<<<<<<<<<<<<<
@@ -15011,7 +13819,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   return __pyx_r;
 }
 
-/* "View.MemoryView":972
+/* "View.MemoryView":976
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -15034,7 +13842,7 @@ static void __pyx_memoryviewslice___pyx_pf_15View_dot_MemoryView_16_memoryviewsl
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "View.MemoryView":973
+  /* "View.MemoryView":977
  * 
  *     def __dealloc__(self):
  *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)             # <<<<<<<<<<<<<<
@@ -15043,7 +13851,7 @@ static void __pyx_memoryviewslice___pyx_pf_15View_dot_MemoryView_16_memoryviewsl
  */
   __PYX_XDEC_MEMVIEW((&__pyx_v_self->from_slice), 1);
 
-  /* "View.MemoryView":972
+  /* "View.MemoryView":976
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -15055,7 +13863,7 @@ static void __pyx_memoryviewslice___pyx_pf_15View_dot_MemoryView_16_memoryviewsl
   __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":975
+/* "View.MemoryView":979
  *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)
  * 
  *     cdef convert_item_to_object(self, char *itemp):             # <<<<<<<<<<<<<<
@@ -15068,9 +13876,12 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
   PyObject *__pyx_t_2 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("convert_item_to_object", 0);
 
-  /* "View.MemoryView":976
+  /* "View.MemoryView":980
  * 
  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:             # <<<<<<<<<<<<<<
@@ -15080,7 +13891,7 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
   __pyx_t_1 = ((__pyx_v_self->to_object_func != NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":977
+    /* "View.MemoryView":981
  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:
  *             return self.to_object_func(itemp)             # <<<<<<<<<<<<<<
@@ -15088,13 +13899,13 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
  *             return memoryview.convert_item_to_object(self, itemp)
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = __pyx_v_self->to_object_func(__pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 977, __pyx_L1_error)
+    __pyx_t_2 = __pyx_v_self->to_object_func(__pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 981, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_r = __pyx_t_2;
     __pyx_t_2 = 0;
     goto __pyx_L0;
 
-    /* "View.MemoryView":976
+    /* "View.MemoryView":980
  * 
  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:             # <<<<<<<<<<<<<<
@@ -15103,7 +13914,7 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
  */
   }
 
-  /* "View.MemoryView":979
+  /* "View.MemoryView":983
  *             return self.to_object_func(itemp)
  *         else:
  *             return memoryview.convert_item_to_object(self, itemp)             # <<<<<<<<<<<<<<
@@ -15112,14 +13923,14 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
  */
   /*else*/ {
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = __pyx_memoryview_convert_item_to_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 979, __pyx_L1_error)
+    __pyx_t_2 = __pyx_memoryview_convert_item_to_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 983, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_r = __pyx_t_2;
     __pyx_t_2 = 0;
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":975
+  /* "View.MemoryView":979
  *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)
  * 
  *     cdef convert_item_to_object(self, char *itemp):             # <<<<<<<<<<<<<<
@@ -15138,7 +13949,7 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
   return __pyx_r;
 }
 
-/* "View.MemoryView":981
+/* "View.MemoryView":985
  *             return memoryview.convert_item_to_object(self, itemp)
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):             # <<<<<<<<<<<<<<
@@ -15152,9 +13963,12 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
   int __pyx_t_1;
   int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("assign_item_from_object", 0);
 
-  /* "View.MemoryView":982
+  /* "View.MemoryView":986
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):
  *         if self.to_dtype_func != NULL:             # <<<<<<<<<<<<<<
@@ -15164,16 +13978,16 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
   __pyx_t_1 = ((__pyx_v_self->to_dtype_func != NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":983
+    /* "View.MemoryView":987
  *     cdef assign_item_from_object(self, char *itemp, object value):
  *         if self.to_dtype_func != NULL:
  *             self.to_dtype_func(itemp, value)             # <<<<<<<<<<<<<<
  *         else:
  *             memoryview.assign_item_from_object(self, itemp, value)
  */
-    __pyx_t_2 = __pyx_v_self->to_dtype_func(__pyx_v_itemp, __pyx_v_value); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(2, 983, __pyx_L1_error)
+    __pyx_t_2 = __pyx_v_self->to_dtype_func(__pyx_v_itemp, __pyx_v_value); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(2, 987, __pyx_L1_error)
 
-    /* "View.MemoryView":982
+    /* "View.MemoryView":986
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):
  *         if self.to_dtype_func != NULL:             # <<<<<<<<<<<<<<
@@ -15183,7 +13997,7 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":985
+  /* "View.MemoryView":989
  *             self.to_dtype_func(itemp, value)
  *         else:
  *             memoryview.assign_item_from_object(self, itemp, value)             # <<<<<<<<<<<<<<
@@ -15191,13 +14005,13 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
  *     @property
  */
   /*else*/ {
-    __pyx_t_3 = __pyx_memoryview_assign_item_from_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp, __pyx_v_value); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 985, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_assign_item_from_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp, __pyx_v_value); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 989, __pyx_L1_error)
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   __pyx_L3:;
 
-  /* "View.MemoryView":981
+  /* "View.MemoryView":985
  *             return memoryview.convert_item_to_object(self, itemp)
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):             # <<<<<<<<<<<<<<
@@ -15218,7 +14032,7 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
   return __pyx_r;
 }
 
-/* "View.MemoryView":988
+/* "View.MemoryView":992
  * 
  *     @property
  *     def base(self):             # <<<<<<<<<<<<<<
@@ -15244,7 +14058,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_16_memoryviewslice_4base___get__
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "View.MemoryView":989
+  /* "View.MemoryView":993
  *     @property
  *     def base(self):
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@@ -15256,7 +14070,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_16_memoryviewslice_4base___get__
   __pyx_r = __pyx_v_self->from_object;
   goto __pyx_L0;
 
-  /* "View.MemoryView":988
+  /* "View.MemoryView":992
  * 
  *     @property
  *     def base(self):             # <<<<<<<<<<<<<<
@@ -15294,6 +14108,9 @@ static PyObject *__pyx_pf___pyx_memoryviewslice___reduce_cython__(CYTHON_UNUSED
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__reduce_cython__", 0);
 
   /* "(tree fragment)":2
@@ -15302,7 +14119,7 @@ static PyObject *__pyx_pf___pyx_memoryviewslice___reduce_cython__(CYTHON_UNUSED
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  *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")
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-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__24, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 2, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__19, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 2, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_Raise(__pyx_t_1, 0, 0, 0);
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@@ -15348,6 +14165,9 @@ static PyObject *__pyx_pf___pyx_memoryviewslice_2__setstate_cython__(CYTHON_UNUS
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__setstate_cython__", 0);
 
   /* "(tree fragment)":4
@@ -15355,7 +14175,7 @@ static PyObject *__pyx_pf___pyx_memoryviewslice_2__setstate_cython__(CYTHON_UNUS
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  *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")             # <<<<<<<<<<<<<<
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-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__25, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 4, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__20, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 4, __pyx_L1_error)
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@@ -15378,7 +14198,7 @@ static PyObject *__pyx_pf___pyx_memoryviewslice_2__setstate_cython__(CYTHON_UNUS
   return __pyx_r;
 }
 
-/* "View.MemoryView":995
+/* "View.MemoryView":999
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  * @cname('__pyx_memoryview_fromslice')
  * cdef memoryview_fromslice(__Pyx_memviewslice memviewslice,             # <<<<<<<<<<<<<<
@@ -15401,9 +14221,12 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   Py_ssize_t *__pyx_t_7;
   Py_ssize_t *__pyx_t_8;
   Py_ssize_t __pyx_t_9;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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-  /* "View.MemoryView":1003
+  /* "View.MemoryView":1007
  *     cdef _memoryviewslice result
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  *     if <PyObject *> memviewslice.memview == Py_None:             # <<<<<<<<<<<<<<
@@ -15413,7 +14236,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_1 = ((((PyObject *)__pyx_v_memviewslice.memview) == Py_None) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1004
+    /* "View.MemoryView":1008
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  *     if <PyObject *> memviewslice.memview == Py_None:
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@@ -15424,7 +14247,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
     __pyx_r = Py_None; __Pyx_INCREF(Py_None);
     goto __pyx_L0;
 
-    /* "View.MemoryView":1003
+    /* "View.MemoryView":1007
  *     cdef _memoryviewslice result
  * 
  *     if <PyObject *> memviewslice.memview == Py_None:             # <<<<<<<<<<<<<<
@@ -15433,16 +14256,16 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   }
 
-  /* "View.MemoryView":1009
+  /* "View.MemoryView":1013
  * 
  * 
  *     result = _memoryviewslice(None, 0, dtype_is_object)             # <<<<<<<<<<<<<<
  * 
  *     result.from_slice = memviewslice
  */
-  __pyx_t_2 = __Pyx_PyBool_FromLong(__pyx_v_dtype_is_object); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1009, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyBool_FromLong(__pyx_v_dtype_is_object); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1013, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1009, __pyx_L1_error)
+  __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1013, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(Py_None);
@@ -15453,13 +14276,13 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __Pyx_GIVEREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_t_2);
   __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_PyObject_Call(((PyObject *)__pyx_memoryviewslice_type), __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1009, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_Call(((PyObject *)__pyx_memoryviewslice_type), __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1013, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_v_result = ((struct __pyx_memoryviewslice_obj *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "View.MemoryView":1011
+  /* "View.MemoryView":1015
  *     result = _memoryviewslice(None, 0, dtype_is_object)
  * 
  *     result.from_slice = memviewslice             # <<<<<<<<<<<<<<
@@ -15468,7 +14291,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->from_slice = __pyx_v_memviewslice;
 
-  /* "View.MemoryView":1012
+  /* "View.MemoryView":1016
  * 
  *     result.from_slice = memviewslice
  *     __PYX_INC_MEMVIEW(&memviewslice, 1)             # <<<<<<<<<<<<<<
@@ -15477,14 +14300,14 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __PYX_INC_MEMVIEW((&__pyx_v_memviewslice), 1);
 
-  /* "View.MemoryView":1014
+  /* "View.MemoryView":1018
  *     __PYX_INC_MEMVIEW(&memviewslice, 1)
  * 
  *     result.from_object = (<memoryview> memviewslice.memview).base             # <<<<<<<<<<<<<<
  *     result.typeinfo = memviewslice.memview.typeinfo
  * 
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_memviewslice.memview), __pyx_n_s_base); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1014, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_memviewslice.memview), __pyx_n_s_base); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1018, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __Pyx_GOTREF(__pyx_v_result->from_object);
@@ -15492,7 +14315,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_v_result->from_object = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "View.MemoryView":1015
+  /* "View.MemoryView":1019
  * 
  *     result.from_object = (<memoryview> memviewslice.memview).base
  *     result.typeinfo = memviewslice.memview.typeinfo             # <<<<<<<<<<<<<<
@@ -15502,7 +14325,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_4 = __pyx_v_memviewslice.memview->typeinfo;
   __pyx_v_result->__pyx_base.typeinfo = __pyx_t_4;
 
-  /* "View.MemoryView":1017
+  /* "View.MemoryView":1021
  *     result.typeinfo = memviewslice.memview.typeinfo
  * 
  *     result.view = memviewslice.memview.view             # <<<<<<<<<<<<<<
@@ -15512,7 +14335,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_5 = __pyx_v_memviewslice.memview->view;
   __pyx_v_result->__pyx_base.view = __pyx_t_5;
 
-  /* "View.MemoryView":1018
+  /* "View.MemoryView":1022
  * 
  *     result.view = memviewslice.memview.view
  *     result.view.buf = <void *> memviewslice.data             # <<<<<<<<<<<<<<
@@ -15521,7 +14344,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.buf = ((void *)__pyx_v_memviewslice.data);
 
-  /* "View.MemoryView":1019
+  /* "View.MemoryView":1023
  *     result.view = memviewslice.memview.view
  *     result.view.buf = <void *> memviewslice.data
  *     result.view.ndim = ndim             # <<<<<<<<<<<<<<
@@ -15530,7 +14353,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.ndim = __pyx_v_ndim;
 
-  /* "View.MemoryView":1020
+  /* "View.MemoryView":1024
  *     result.view.buf = <void *> memviewslice.data
  *     result.view.ndim = ndim
  *     (<__pyx_buffer *> &result.view).obj = Py_None             # <<<<<<<<<<<<<<
@@ -15539,7 +14362,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   ((Py_buffer *)(&__pyx_v_result->__pyx_base.view))->obj = Py_None;
 
-  /* "View.MemoryView":1021
+  /* "View.MemoryView":1025
  *     result.view.ndim = ndim
  *     (<__pyx_buffer *> &result.view).obj = Py_None
  *     Py_INCREF(Py_None)             # <<<<<<<<<<<<<<
@@ -15548,7 +14371,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   Py_INCREF(Py_None);
 
-  /* "View.MemoryView":1023
+  /* "View.MemoryView":1027
  *     Py_INCREF(Py_None)
  * 
  *     if (<memoryview>memviewslice.memview).flags & PyBUF_WRITABLE:             # <<<<<<<<<<<<<<
@@ -15558,7 +14381,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_1 = ((((struct __pyx_memoryview_obj *)__pyx_v_memviewslice.memview)->flags & PyBUF_WRITABLE) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1024
+    /* "View.MemoryView":1028
  * 
  *     if (<memoryview>memviewslice.memview).flags & PyBUF_WRITABLE:
  *         result.flags = PyBUF_RECORDS             # <<<<<<<<<<<<<<
@@ -15567,7 +14390,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
     __pyx_v_result->__pyx_base.flags = PyBUF_RECORDS;
 
-    /* "View.MemoryView":1023
+    /* "View.MemoryView":1027
  *     Py_INCREF(Py_None)
  * 
  *     if (<memoryview>memviewslice.memview).flags & PyBUF_WRITABLE:             # <<<<<<<<<<<<<<
@@ -15577,7 +14400,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
     goto __pyx_L4;
   }
 
-  /* "View.MemoryView":1026
+  /* "View.MemoryView":1030
  *         result.flags = PyBUF_RECORDS
  *     else:
  *         result.flags = PyBUF_RECORDS_RO             # <<<<<<<<<<<<<<
@@ -15589,7 +14412,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   }
   __pyx_L4:;
 
-  /* "View.MemoryView":1028
+  /* "View.MemoryView":1032
  *         result.flags = PyBUF_RECORDS_RO
  * 
  *     result.view.shape = <Py_ssize_t *> result.from_slice.shape             # <<<<<<<<<<<<<<
@@ -15598,7 +14421,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.shape = ((Py_ssize_t *)__pyx_v_result->from_slice.shape);
 
-  /* "View.MemoryView":1029
+  /* "View.MemoryView":1033
  * 
  *     result.view.shape = <Py_ssize_t *> result.from_slice.shape
  *     result.view.strides = <Py_ssize_t *> result.from_slice.strides             # <<<<<<<<<<<<<<
@@ -15607,7 +14430,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.strides = ((Py_ssize_t *)__pyx_v_result->from_slice.strides);
 
-  /* "View.MemoryView":1032
+  /* "View.MemoryView":1036
  * 
  * 
  *     result.view.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -15616,7 +14439,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.suboffsets = NULL;
 
-  /* "View.MemoryView":1033
+  /* "View.MemoryView":1037
  * 
  *     result.view.suboffsets = NULL
  *     for suboffset in result.from_slice.suboffsets[:ndim]:             # <<<<<<<<<<<<<<
@@ -15628,7 +14451,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
     __pyx_t_6 = __pyx_t_8;
     __pyx_v_suboffset = (__pyx_t_6[0]);
 
-    /* "View.MemoryView":1034
+    /* "View.MemoryView":1038
  *     result.view.suboffsets = NULL
  *     for suboffset in result.from_slice.suboffsets[:ndim]:
  *         if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -15638,7 +14461,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
     __pyx_t_1 = ((__pyx_v_suboffset >= 0) != 0);
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":1035
+      /* "View.MemoryView":1039
  *     for suboffset in result.from_slice.suboffsets[:ndim]:
  *         if suboffset >= 0:
  *             result.view.suboffsets = <Py_ssize_t *> result.from_slice.suboffsets             # <<<<<<<<<<<<<<
@@ -15647,7 +14470,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
       __pyx_v_result->__pyx_base.view.suboffsets = ((Py_ssize_t *)__pyx_v_result->from_slice.suboffsets);
 
-      /* "View.MemoryView":1036
+      /* "View.MemoryView":1040
  *         if suboffset >= 0:
  *             result.view.suboffsets = <Py_ssize_t *> result.from_slice.suboffsets
  *             break             # <<<<<<<<<<<<<<
@@ -15656,7 +14479,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
       goto __pyx_L6_break;
 
-      /* "View.MemoryView":1034
+      /* "View.MemoryView":1038
  *     result.view.suboffsets = NULL
  *     for suboffset in result.from_slice.suboffsets[:ndim]:
  *         if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -15667,7 +14490,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   }
   __pyx_L6_break:;
 
-  /* "View.MemoryView":1038
+  /* "View.MemoryView":1042
  *             break
  * 
  *     result.view.len = result.view.itemsize             # <<<<<<<<<<<<<<
@@ -15677,7 +14500,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_9 = __pyx_v_result->__pyx_base.view.itemsize;
   __pyx_v_result->__pyx_base.view.len = __pyx_t_9;
 
-  /* "View.MemoryView":1039
+  /* "View.MemoryView":1043
  * 
  *     result.view.len = result.view.itemsize
  *     for length in result.view.shape[:ndim]:             # <<<<<<<<<<<<<<
@@ -15687,29 +14510,29 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_7 = (__pyx_v_result->__pyx_base.view.shape + __pyx_v_ndim);
   for (__pyx_t_8 = __pyx_v_result->__pyx_base.view.shape; __pyx_t_8 < __pyx_t_7; __pyx_t_8++) {
     __pyx_t_6 = __pyx_t_8;
-    __pyx_t_2 = PyInt_FromSsize_t((__pyx_t_6[0])); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1039, __pyx_L1_error)
+    __pyx_t_2 = PyInt_FromSsize_t((__pyx_t_6[0])); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1043, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_XDECREF_SET(__pyx_v_length, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "View.MemoryView":1040
+    /* "View.MemoryView":1044
  *     result.view.len = result.view.itemsize
  *     for length in result.view.shape[:ndim]:
  *         result.view.len *= length             # <<<<<<<<<<<<<<
  * 
  *     result.to_object_func = to_object_func
  */
-    __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_result->__pyx_base.view.len); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1040, __pyx_L1_error)
+    __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_result->__pyx_base.view.len); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1044, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyNumber_InPlaceMultiply(__pyx_t_2, __pyx_v_length); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1040, __pyx_L1_error)
+    __pyx_t_3 = PyNumber_InPlaceMultiply(__pyx_t_2, __pyx_v_length); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1044, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_9 = __Pyx_PyIndex_AsSsize_t(__pyx_t_3); if (unlikely((__pyx_t_9 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 1040, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyIndex_AsSsize_t(__pyx_t_3); if (unlikely((__pyx_t_9 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 1044, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_v_result->__pyx_base.view.len = __pyx_t_9;
   }
 
-  /* "View.MemoryView":1042
+  /* "View.MemoryView":1046
  *         result.view.len *= length
  * 
  *     result.to_object_func = to_object_func             # <<<<<<<<<<<<<<
@@ -15718,7 +14541,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->to_object_func = __pyx_v_to_object_func;
 
-  /* "View.MemoryView":1043
+  /* "View.MemoryView":1047
  * 
  *     result.to_object_func = to_object_func
  *     result.to_dtype_func = to_dtype_func             # <<<<<<<<<<<<<<
@@ -15727,7 +14550,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->to_dtype_func = __pyx_v_to_dtype_func;
 
-  /* "View.MemoryView":1045
+  /* "View.MemoryView":1049
  *     result.to_dtype_func = to_dtype_func
  * 
  *     return result             # <<<<<<<<<<<<<<
@@ -15739,7 +14562,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_r = ((PyObject *)__pyx_v_result);
   goto __pyx_L0;
 
-  /* "View.MemoryView":995
+  /* "View.MemoryView":999
  * 
  * @cname('__pyx_memoryview_fromslice')
  * cdef memoryview_fromslice(__Pyx_memviewslice memviewslice,             # <<<<<<<<<<<<<<
@@ -15761,11 +14584,11 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   return __pyx_r;
 }
 
-/* "View.MemoryView":1048
+/* "View.MemoryView":1052
  * 
  * @cname('__pyx_memoryview_get_slice_from_memoryview')
  * cdef __Pyx_memviewslice *get_slice_from_memview(memoryview memview,             # <<<<<<<<<<<<<<
- *                                                    __Pyx_memviewslice *mslice):
+ *                                                    __Pyx_memviewslice *mslice) except NULL:
  *     cdef _memoryviewslice obj
  */
 
@@ -15776,10 +14599,13 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
   int __pyx_t_1;
   int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("get_slice_from_memview", 0);
 
-  /* "View.MemoryView":1051
- *                                                    __Pyx_memviewslice *mslice):
+  /* "View.MemoryView":1055
+ *                                                    __Pyx_memviewslice *mslice) except NULL:
  *     cdef _memoryviewslice obj
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
  *         obj = memview
@@ -15789,20 +14615,20 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1052
+    /* "View.MemoryView":1056
  *     cdef _memoryviewslice obj
  *     if isinstance(memview, _memoryviewslice):
  *         obj = memview             # <<<<<<<<<<<<<<
  *         return &obj.from_slice
  *     else:
  */
-    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(2, 1052, __pyx_L1_error)
+    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(2, 1056, __pyx_L1_error)
     __pyx_t_3 = ((PyObject *)__pyx_v_memview);
     __Pyx_INCREF(__pyx_t_3);
     __pyx_v_obj = ((struct __pyx_memoryviewslice_obj *)__pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "View.MemoryView":1053
+    /* "View.MemoryView":1057
  *     if isinstance(memview, _memoryviewslice):
  *         obj = memview
  *         return &obj.from_slice             # <<<<<<<<<<<<<<
@@ -15812,8 +14638,8 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
     __pyx_r = (&__pyx_v_obj->from_slice);
     goto __pyx_L0;
 
-    /* "View.MemoryView":1051
- *                                                    __Pyx_memviewslice *mslice):
+    /* "View.MemoryView":1055
+ *                                                    __Pyx_memviewslice *mslice) except NULL:
  *     cdef _memoryviewslice obj
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
  *         obj = memview
@@ -15821,7 +14647,7 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
  */
   }
 
-  /* "View.MemoryView":1055
+  /* "View.MemoryView":1059
  *         return &obj.from_slice
  *     else:
  *         slice_copy(memview, mslice)             # <<<<<<<<<<<<<<
@@ -15831,7 +14657,7 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
   /*else*/ {
     __pyx_memoryview_slice_copy(__pyx_v_memview, __pyx_v_mslice);
 
-    /* "View.MemoryView":1056
+    /* "View.MemoryView":1060
  *     else:
  *         slice_copy(memview, mslice)
  *         return mslice             # <<<<<<<<<<<<<<
@@ -15842,26 +14668,26 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":1048
+  /* "View.MemoryView":1052
  * 
  * @cname('__pyx_memoryview_get_slice_from_memoryview')
  * cdef __Pyx_memviewslice *get_slice_from_memview(memoryview memview,             # <<<<<<<<<<<<<<
- *                                                    __Pyx_memviewslice *mslice):
+ *                                                    __Pyx_memviewslice *mslice) except NULL:
  *     cdef _memoryviewslice obj
  */
 
   /* function exit code */
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_WriteUnraisable("View.MemoryView.get_slice_from_memview", __pyx_clineno, __pyx_lineno, __pyx_filename, 1, 0);
-  __pyx_r = 0;
+  __Pyx_AddTraceback("View.MemoryView.get_slice_from_memview", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XDECREF((PyObject *)__pyx_v_obj);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "View.MemoryView":1059
+/* "View.MemoryView":1063
  * 
  * @cname('__pyx_memoryview_slice_copy')
  * cdef void slice_copy(memoryview memview, __Pyx_memviewslice *dst):             # <<<<<<<<<<<<<<
@@ -15882,7 +14708,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   Py_ssize_t __pyx_t_5;
   __Pyx_RefNannySetupContext("slice_copy", 0);
 
-  /* "View.MemoryView":1063
+  /* "View.MemoryView":1067
  *     cdef (Py_ssize_t*) shape, strides, suboffsets
  * 
  *     shape = memview.view.shape             # <<<<<<<<<<<<<<
@@ -15892,7 +14718,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   __pyx_t_1 = __pyx_v_memview->view.shape;
   __pyx_v_shape = __pyx_t_1;
 
-  /* "View.MemoryView":1064
+  /* "View.MemoryView":1068
  * 
  *     shape = memview.view.shape
  *     strides = memview.view.strides             # <<<<<<<<<<<<<<
@@ -15902,7 +14728,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   __pyx_t_1 = __pyx_v_memview->view.strides;
   __pyx_v_strides = __pyx_t_1;
 
-  /* "View.MemoryView":1065
+  /* "View.MemoryView":1069
  *     shape = memview.view.shape
  *     strides = memview.view.strides
  *     suboffsets = memview.view.suboffsets             # <<<<<<<<<<<<<<
@@ -15912,7 +14738,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   __pyx_t_1 = __pyx_v_memview->view.suboffsets;
   __pyx_v_suboffsets = __pyx_t_1;
 
-  /* "View.MemoryView":1067
+  /* "View.MemoryView":1071
  *     suboffsets = memview.view.suboffsets
  * 
  *     dst.memview = <__pyx_memoryview *> memview             # <<<<<<<<<<<<<<
@@ -15921,7 +14747,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  */
   __pyx_v_dst->memview = ((struct __pyx_memoryview_obj *)__pyx_v_memview);
 
-  /* "View.MemoryView":1068
+  /* "View.MemoryView":1072
  * 
  *     dst.memview = <__pyx_memoryview *> memview
  *     dst.data = <char *> memview.view.buf             # <<<<<<<<<<<<<<
@@ -15930,7 +14756,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  */
   __pyx_v_dst->data = ((char *)__pyx_v_memview->view.buf);
 
-  /* "View.MemoryView":1070
+  /* "View.MemoryView":1074
  *     dst.data = <char *> memview.view.buf
  * 
  *     for dim in range(memview.view.ndim):             # <<<<<<<<<<<<<<
@@ -15942,7 +14768,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_dim = __pyx_t_4;
 
-    /* "View.MemoryView":1071
+    /* "View.MemoryView":1075
  * 
  *     for dim in range(memview.view.ndim):
  *         dst.shape[dim] = shape[dim]             # <<<<<<<<<<<<<<
@@ -15951,7 +14777,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  */
     (__pyx_v_dst->shape[__pyx_v_dim]) = (__pyx_v_shape[__pyx_v_dim]);
 
-    /* "View.MemoryView":1072
+    /* "View.MemoryView":1076
  *     for dim in range(memview.view.ndim):
  *         dst.shape[dim] = shape[dim]
  *         dst.strides[dim] = strides[dim]             # <<<<<<<<<<<<<<
@@ -15960,7 +14786,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  */
     (__pyx_v_dst->strides[__pyx_v_dim]) = (__pyx_v_strides[__pyx_v_dim]);
 
-    /* "View.MemoryView":1073
+    /* "View.MemoryView":1077
  *         dst.shape[dim] = shape[dim]
  *         dst.strides[dim] = strides[dim]
  *         dst.suboffsets[dim] = suboffsets[dim] if suboffsets else -1             # <<<<<<<<<<<<<<
@@ -15975,7 +14801,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
     (__pyx_v_dst->suboffsets[__pyx_v_dim]) = __pyx_t_5;
   }
 
-  /* "View.MemoryView":1059
+  /* "View.MemoryView":1063
  * 
  * @cname('__pyx_memoryview_slice_copy')
  * cdef void slice_copy(memoryview memview, __Pyx_memviewslice *dst):             # <<<<<<<<<<<<<<
@@ -15987,7 +14813,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":1076
+/* "View.MemoryView":1080
  * 
  * @cname('__pyx_memoryview_copy_object')
  * cdef memoryview_copy(memoryview memview):             # <<<<<<<<<<<<<<
@@ -16000,9 +14826,12 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("memoryview_copy", 0);
 
-  /* "View.MemoryView":1079
+  /* "View.MemoryView":1083
  *     "Create a new memoryview object"
  *     cdef __Pyx_memviewslice memviewslice
  *     slice_copy(memview, &memviewslice)             # <<<<<<<<<<<<<<
@@ -16011,7 +14840,7 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
  */
   __pyx_memoryview_slice_copy(__pyx_v_memview, (&__pyx_v_memviewslice));
 
-  /* "View.MemoryView":1080
+  /* "View.MemoryView":1084
  *     cdef __Pyx_memviewslice memviewslice
  *     slice_copy(memview, &memviewslice)
  *     return memoryview_copy_from_slice(memview, &memviewslice)             # <<<<<<<<<<<<<<
@@ -16019,13 +14848,13 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
  * @cname('__pyx_memoryview_copy_object_from_slice')
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_memoryview_copy_object_from_slice(__pyx_v_memview, (&__pyx_v_memviewslice)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1080, __pyx_L1_error)
+  __pyx_t_1 = __pyx_memoryview_copy_object_from_slice(__pyx_v_memview, (&__pyx_v_memviewslice)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1084, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1076
+  /* "View.MemoryView":1080
  * 
  * @cname('__pyx_memoryview_copy_object')
  * cdef memoryview_copy(memoryview memview):             # <<<<<<<<<<<<<<
@@ -16044,7 +14873,7 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
   return __pyx_r;
 }
 
-/* "View.MemoryView":1083
+/* "View.MemoryView":1087
  * 
  * @cname('__pyx_memoryview_copy_object_from_slice')
  * cdef memoryview_copy_from_slice(memoryview memview, __Pyx_memviewslice *memviewslice):             # <<<<<<<<<<<<<<
@@ -16062,9 +14891,12 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   PyObject *(*__pyx_t_3)(char *);
   int (*__pyx_t_4)(char *, PyObject *);
   PyObject *__pyx_t_5 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("memoryview_copy_from_slice", 0);
 
-  /* "View.MemoryView":1090
+  /* "View.MemoryView":1094
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -16075,7 +14907,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1091
+    /* "View.MemoryView":1095
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         to_object_func = (<_memoryviewslice> memview).to_object_func             # <<<<<<<<<<<<<<
@@ -16085,7 +14917,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
     __pyx_t_3 = ((struct __pyx_memoryviewslice_obj *)__pyx_v_memview)->to_object_func;
     __pyx_v_to_object_func = __pyx_t_3;
 
-    /* "View.MemoryView":1092
+    /* "View.MemoryView":1096
  *     if isinstance(memview, _memoryviewslice):
  *         to_object_func = (<_memoryviewslice> memview).to_object_func
  *         to_dtype_func = (<_memoryviewslice> memview).to_dtype_func             # <<<<<<<<<<<<<<
@@ -16095,7 +14927,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
     __pyx_t_4 = ((struct __pyx_memoryviewslice_obj *)__pyx_v_memview)->to_dtype_func;
     __pyx_v_to_dtype_func = __pyx_t_4;
 
-    /* "View.MemoryView":1090
+    /* "View.MemoryView":1094
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -16105,7 +14937,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1094
+  /* "View.MemoryView":1098
  *         to_dtype_func = (<_memoryviewslice> memview).to_dtype_func
  *     else:
  *         to_object_func = NULL             # <<<<<<<<<<<<<<
@@ -16115,7 +14947,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   /*else*/ {
     __pyx_v_to_object_func = NULL;
 
-    /* "View.MemoryView":1095
+    /* "View.MemoryView":1099
  *     else:
  *         to_object_func = NULL
  *         to_dtype_func = NULL             # <<<<<<<<<<<<<<
@@ -16126,7 +14958,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1097
+  /* "View.MemoryView":1101
  *         to_dtype_func = NULL
  * 
  *     return memoryview_fromslice(memviewslice[0], memview.view.ndim,             # <<<<<<<<<<<<<<
@@ -16135,20 +14967,20 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
  */
   __Pyx_XDECREF(__pyx_r);
 
-  /* "View.MemoryView":1099
+  /* "View.MemoryView":1103
  *     return memoryview_fromslice(memviewslice[0], memview.view.ndim,
  *                                 to_object_func, to_dtype_func,
  *                                 memview.dtype_is_object)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_5 = __pyx_memoryview_fromslice((__pyx_v_memviewslice[0]), __pyx_v_memview->view.ndim, __pyx_v_to_object_func, __pyx_v_to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 1097, __pyx_L1_error)
+  __pyx_t_5 = __pyx_memoryview_fromslice((__pyx_v_memviewslice[0]), __pyx_v_memview->view.ndim, __pyx_v_to_object_func, __pyx_v_to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 1101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __pyx_r = __pyx_t_5;
   __pyx_t_5 = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1083
+  /* "View.MemoryView":1087
  * 
  * @cname('__pyx_memoryview_copy_object_from_slice')
  * cdef memoryview_copy_from_slice(memoryview memview, __Pyx_memviewslice *memviewslice):             # <<<<<<<<<<<<<<
@@ -16167,7 +14999,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   return __pyx_r;
 }
 
-/* "View.MemoryView":1105
+/* "View.MemoryView":1109
  * 
  * 
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:             # <<<<<<<<<<<<<<
@@ -16179,7 +15011,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
   Py_ssize_t __pyx_r;
   int __pyx_t_1;
 
-  /* "View.MemoryView":1106
+  /* "View.MemoryView":1110
  * 
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
  *     if arg < 0:             # <<<<<<<<<<<<<<
@@ -16189,7 +15021,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
   __pyx_t_1 = ((__pyx_v_arg < 0) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1107
+    /* "View.MemoryView":1111
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
  *     if arg < 0:
  *         return -arg             # <<<<<<<<<<<<<<
@@ -16199,7 +15031,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
     __pyx_r = (-__pyx_v_arg);
     goto __pyx_L0;
 
-    /* "View.MemoryView":1106
+    /* "View.MemoryView":1110
  * 
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
  *     if arg < 0:             # <<<<<<<<<<<<<<
@@ -16208,7 +15040,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
  */
   }
 
-  /* "View.MemoryView":1109
+  /* "View.MemoryView":1113
  *         return -arg
  *     else:
  *         return arg             # <<<<<<<<<<<<<<
@@ -16220,7 +15052,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":1105
+  /* "View.MemoryView":1109
  * 
  * 
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:             # <<<<<<<<<<<<<<
@@ -16233,7 +15065,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
   return __pyx_r;
 }
 
-/* "View.MemoryView":1112
+/* "View.MemoryView":1116
  * 
  * @cname('__pyx_get_best_slice_order')
  * cdef char get_best_order(__Pyx_memviewslice *mslice, int ndim) nogil:             # <<<<<<<<<<<<<<
@@ -16251,7 +15083,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   int __pyx_t_3;
   int __pyx_t_4;
 
-  /* "View.MemoryView":1117
+  /* "View.MemoryView":1121
  *     """
  *     cdef int i
  *     cdef Py_ssize_t c_stride = 0             # <<<<<<<<<<<<<<
@@ -16260,7 +15092,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   __pyx_v_c_stride = 0;
 
-  /* "View.MemoryView":1118
+  /* "View.MemoryView":1122
  *     cdef int i
  *     cdef Py_ssize_t c_stride = 0
  *     cdef Py_ssize_t f_stride = 0             # <<<<<<<<<<<<<<
@@ -16269,7 +15101,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   __pyx_v_f_stride = 0;
 
-  /* "View.MemoryView":1120
+  /* "View.MemoryView":1124
  *     cdef Py_ssize_t f_stride = 0
  * 
  *     for i in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
@@ -16279,7 +15111,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   for (__pyx_t_1 = (__pyx_v_ndim - 1); __pyx_t_1 > -1; __pyx_t_1-=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":1121
+    /* "View.MemoryView":1125
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -16289,7 +15121,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     __pyx_t_2 = (((__pyx_v_mslice->shape[__pyx_v_i]) > 1) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1122
+      /* "View.MemoryView":1126
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:
  *             c_stride = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -16298,7 +15130,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       __pyx_v_c_stride = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-      /* "View.MemoryView":1123
+      /* "View.MemoryView":1127
  *         if mslice.shape[i] > 1:
  *             c_stride = mslice.strides[i]
  *             break             # <<<<<<<<<<<<<<
@@ -16307,7 +15139,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       goto __pyx_L4_break;
 
-      /* "View.MemoryView":1121
+      /* "View.MemoryView":1125
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -16318,7 +15150,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   }
   __pyx_L4_break:;
 
-  /* "View.MemoryView":1125
+  /* "View.MemoryView":1129
  *             break
  * 
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -16330,7 +15162,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_i = __pyx_t_4;
 
-    /* "View.MemoryView":1126
+    /* "View.MemoryView":1130
  * 
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -16340,7 +15172,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     __pyx_t_2 = (((__pyx_v_mslice->shape[__pyx_v_i]) > 1) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1127
+      /* "View.MemoryView":1131
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:
  *             f_stride = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -16349,7 +15181,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       __pyx_v_f_stride = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-      /* "View.MemoryView":1128
+      /* "View.MemoryView":1132
  *         if mslice.shape[i] > 1:
  *             f_stride = mslice.strides[i]
  *             break             # <<<<<<<<<<<<<<
@@ -16358,7 +15190,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       goto __pyx_L7_break;
 
-      /* "View.MemoryView":1126
+      /* "View.MemoryView":1130
  * 
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -16369,7 +15201,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   }
   __pyx_L7_break:;
 
-  /* "View.MemoryView":1130
+  /* "View.MemoryView":1134
  *             break
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):             # <<<<<<<<<<<<<<
@@ -16379,7 +15211,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   __pyx_t_2 = ((abs_py_ssize_t(__pyx_v_c_stride) <= abs_py_ssize_t(__pyx_v_f_stride)) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1131
+    /* "View.MemoryView":1135
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):
  *         return 'C'             # <<<<<<<<<<<<<<
@@ -16389,7 +15221,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     __pyx_r = 'C';
     goto __pyx_L0;
 
-    /* "View.MemoryView":1130
+    /* "View.MemoryView":1134
  *             break
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):             # <<<<<<<<<<<<<<
@@ -16398,7 +15230,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   }
 
-  /* "View.MemoryView":1133
+  /* "View.MemoryView":1137
  *         return 'C'
  *     else:
  *         return 'F'             # <<<<<<<<<<<<<<
@@ -16410,7 +15242,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":1112
+  /* "View.MemoryView":1116
  * 
  * @cname('__pyx_get_best_slice_order')
  * cdef char get_best_order(__Pyx_memviewslice *mslice, int ndim) nogil:             # <<<<<<<<<<<<<<
@@ -16423,7 +15255,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   return __pyx_r;
 }
 
-/* "View.MemoryView":1136
+/* "View.MemoryView":1140
  * 
  * @cython.cdivision(True)
  * cdef void _copy_strided_to_strided(char *src_data, Py_ssize_t *src_strides,             # <<<<<<<<<<<<<<
@@ -16444,7 +15276,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   Py_ssize_t __pyx_t_5;
   Py_ssize_t __pyx_t_6;
 
-  /* "View.MemoryView":1143
+  /* "View.MemoryView":1147
  * 
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t src_extent = src_shape[0]             # <<<<<<<<<<<<<<
@@ -16453,7 +15285,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_src_extent = (__pyx_v_src_shape[0]);
 
-  /* "View.MemoryView":1144
+  /* "View.MemoryView":1148
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t src_extent = src_shape[0]
  *     cdef Py_ssize_t dst_extent = dst_shape[0]             # <<<<<<<<<<<<<<
@@ -16462,7 +15294,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_dst_extent = (__pyx_v_dst_shape[0]);
 
-  /* "View.MemoryView":1145
+  /* "View.MemoryView":1149
  *     cdef Py_ssize_t src_extent = src_shape[0]
  *     cdef Py_ssize_t dst_extent = dst_shape[0]
  *     cdef Py_ssize_t src_stride = src_strides[0]             # <<<<<<<<<<<<<<
@@ -16471,7 +15303,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_src_stride = (__pyx_v_src_strides[0]);
 
-  /* "View.MemoryView":1146
+  /* "View.MemoryView":1150
  *     cdef Py_ssize_t dst_extent = dst_shape[0]
  *     cdef Py_ssize_t src_stride = src_strides[0]
  *     cdef Py_ssize_t dst_stride = dst_strides[0]             # <<<<<<<<<<<<<<
@@ -16480,7 +15312,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_dst_stride = (__pyx_v_dst_strides[0]);
 
-  /* "View.MemoryView":1148
+  /* "View.MemoryView":1152
  *     cdef Py_ssize_t dst_stride = dst_strides[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -16490,7 +15322,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   __pyx_t_1 = ((__pyx_v_ndim == 1) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1149
+    /* "View.MemoryView":1153
  * 
  *     if ndim == 1:
  *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
@@ -16510,7 +15342,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
       goto __pyx_L5_bool_binop_done;
     }
 
-    /* "View.MemoryView":1150
+    /* "View.MemoryView":1154
  *     if ndim == 1:
  *        if (src_stride > 0 and dst_stride > 0 and
  *            <size_t> src_stride == itemsize == <size_t> dst_stride):             # <<<<<<<<<<<<<<
@@ -16525,7 +15357,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     __pyx_t_1 = __pyx_t_3;
     __pyx_L5_bool_binop_done:;
 
-    /* "View.MemoryView":1149
+    /* "View.MemoryView":1153
  * 
  *     if ndim == 1:
  *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
@@ -16534,7 +15366,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":1151
+      /* "View.MemoryView":1155
  *        if (src_stride > 0 and dst_stride > 0 and
  *            <size_t> src_stride == itemsize == <size_t> dst_stride):
  *            memcpy(dst_data, src_data, itemsize * dst_extent)             # <<<<<<<<<<<<<<
@@ -16543,7 +15375,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
       (void)(memcpy(__pyx_v_dst_data, __pyx_v_src_data, (__pyx_v_itemsize * __pyx_v_dst_extent)));
 
-      /* "View.MemoryView":1149
+      /* "View.MemoryView":1153
  * 
  *     if ndim == 1:
  *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
@@ -16553,7 +15385,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
       goto __pyx_L4;
     }
 
-    /* "View.MemoryView":1153
+    /* "View.MemoryView":1157
  *            memcpy(dst_data, src_data, itemsize * dst_extent)
  *        else:
  *            for i in range(dst_extent):             # <<<<<<<<<<<<<<
@@ -16566,7 +15398,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
       for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
         __pyx_v_i = __pyx_t_6;
 
-        /* "View.MemoryView":1154
+        /* "View.MemoryView":1158
  *        else:
  *            for i in range(dst_extent):
  *                memcpy(dst_data, src_data, itemsize)             # <<<<<<<<<<<<<<
@@ -16575,7 +15407,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
         (void)(memcpy(__pyx_v_dst_data, __pyx_v_src_data, __pyx_v_itemsize));
 
-        /* "View.MemoryView":1155
+        /* "View.MemoryView":1159
  *            for i in range(dst_extent):
  *                memcpy(dst_data, src_data, itemsize)
  *                src_data += src_stride             # <<<<<<<<<<<<<<
@@ -16584,7 +15416,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
         __pyx_v_src_data = (__pyx_v_src_data + __pyx_v_src_stride);
 
-        /* "View.MemoryView":1156
+        /* "View.MemoryView":1160
  *                memcpy(dst_data, src_data, itemsize)
  *                src_data += src_stride
  *                dst_data += dst_stride             # <<<<<<<<<<<<<<
@@ -16596,7 +15428,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     }
     __pyx_L4:;
 
-    /* "View.MemoryView":1148
+    /* "View.MemoryView":1152
  *     cdef Py_ssize_t dst_stride = dst_strides[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -16606,7 +15438,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1158
+  /* "View.MemoryView":1162
  *                dst_data += dst_stride
  *     else:
  *         for i in range(dst_extent):             # <<<<<<<<<<<<<<
@@ -16619,7 +15451,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "View.MemoryView":1159
+      /* "View.MemoryView":1163
  *     else:
  *         for i in range(dst_extent):
  *             _copy_strided_to_strided(src_data, src_strides + 1,             # <<<<<<<<<<<<<<
@@ -16628,7 +15460,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
       _copy_strided_to_strided(__pyx_v_src_data, (__pyx_v_src_strides + 1), __pyx_v_dst_data, (__pyx_v_dst_strides + 1), (__pyx_v_src_shape + 1), (__pyx_v_dst_shape + 1), (__pyx_v_ndim - 1), __pyx_v_itemsize);
 
-      /* "View.MemoryView":1163
+      /* "View.MemoryView":1167
  *                                      src_shape + 1, dst_shape + 1,
  *                                      ndim - 1, itemsize)
  *             src_data += src_stride             # <<<<<<<<<<<<<<
@@ -16637,7 +15469,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
       __pyx_v_src_data = (__pyx_v_src_data + __pyx_v_src_stride);
 
-      /* "View.MemoryView":1164
+      /* "View.MemoryView":1168
  *                                      ndim - 1, itemsize)
  *             src_data += src_stride
  *             dst_data += dst_stride             # <<<<<<<<<<<<<<
@@ -16649,7 +15481,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1136
+  /* "View.MemoryView":1140
  * 
  * @cython.cdivision(True)
  * cdef void _copy_strided_to_strided(char *src_data, Py_ssize_t *src_strides,             # <<<<<<<<<<<<<<
@@ -16660,7 +15492,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   /* function exit code */
 }
 
-/* "View.MemoryView":1166
+/* "View.MemoryView":1170
  *             dst_data += dst_stride
  * 
  * cdef void copy_strided_to_strided(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
@@ -16670,7 +15502,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
 
 static void copy_strided_to_strided(__Pyx_memviewslice *__pyx_v_src, __Pyx_memviewslice *__pyx_v_dst, int __pyx_v_ndim, size_t __pyx_v_itemsize) {
 
-  /* "View.MemoryView":1169
+  /* "View.MemoryView":1173
  *                                   __Pyx_memviewslice *dst,
  *                                   int ndim, size_t itemsize) nogil:
  *     _copy_strided_to_strided(src.data, src.strides, dst.data, dst.strides,             # <<<<<<<<<<<<<<
@@ -16679,7 +15511,7 @@ static void copy_strided_to_strided(__Pyx_memviewslice *__pyx_v_src, __Pyx_memvi
  */
   _copy_strided_to_strided(__pyx_v_src->data, __pyx_v_src->strides, __pyx_v_dst->data, __pyx_v_dst->strides, __pyx_v_src->shape, __pyx_v_dst->shape, __pyx_v_ndim, __pyx_v_itemsize);
 
-  /* "View.MemoryView":1166
+  /* "View.MemoryView":1170
  *             dst_data += dst_stride
  * 
  * cdef void copy_strided_to_strided(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
@@ -16690,57 +15522,57 @@ static void copy_strided_to_strided(__Pyx_memviewslice *__pyx_v_src, __Pyx_memvi
   /* function exit code */
 }
 
-/* "View.MemoryView":1173
+/* "View.MemoryView":1177
  * 
  * @cname('__pyx_memoryview_slice_get_size')
  * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:             # <<<<<<<<<<<<<<
  *     "Return the size of the memory occupied by the slice in number of bytes"
- *     cdef int i
+ *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  */
 
 static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_src, int __pyx_v_ndim) {
-  int __pyx_v_i;
+  Py_ssize_t __pyx_v_shape;
   Py_ssize_t __pyx_v_size;
   Py_ssize_t __pyx_r;
   Py_ssize_t __pyx_t_1;
-  int __pyx_t_2;
-  int __pyx_t_3;
-  int __pyx_t_4;
+  Py_ssize_t *__pyx_t_2;
+  Py_ssize_t *__pyx_t_3;
+  Py_ssize_t *__pyx_t_4;
 
-  /* "View.MemoryView":1176
+  /* "View.MemoryView":1179
+ * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:
  *     "Return the size of the memory occupied by the slice in number of bytes"
- *     cdef int i
- *     cdef Py_ssize_t size = src.memview.view.itemsize             # <<<<<<<<<<<<<<
+ *     cdef Py_ssize_t shape, size = src.memview.view.itemsize             # <<<<<<<<<<<<<<
  * 
- *     for i in range(ndim):
+ *     for shape in src.shape[:ndim]:
  */
   __pyx_t_1 = __pyx_v_src->memview->view.itemsize;
   __pyx_v_size = __pyx_t_1;
 
-  /* "View.MemoryView":1178
- *     cdef Py_ssize_t size = src.memview.view.itemsize
+  /* "View.MemoryView":1181
+ *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  * 
- *     for i in range(ndim):             # <<<<<<<<<<<<<<
- *         size *= src.shape[i]
+ *     for shape in src.shape[:ndim]:             # <<<<<<<<<<<<<<
+ *         size *= shape
  * 
  */
-  __pyx_t_2 = __pyx_v_ndim;
-  __pyx_t_3 = __pyx_t_2;
-  for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
-    __pyx_v_i = __pyx_t_4;
+  __pyx_t_3 = (__pyx_v_src->shape + __pyx_v_ndim);
+  for (__pyx_t_4 = __pyx_v_src->shape; __pyx_t_4 < __pyx_t_3; __pyx_t_4++) {
+    __pyx_t_2 = __pyx_t_4;
+    __pyx_v_shape = (__pyx_t_2[0]);
 
-    /* "View.MemoryView":1179
+    /* "View.MemoryView":1182
  * 
- *     for i in range(ndim):
- *         size *= src.shape[i]             # <<<<<<<<<<<<<<
+ *     for shape in src.shape[:ndim]:
+ *         size *= shape             # <<<<<<<<<<<<<<
  * 
  *     return size
  */
-    __pyx_v_size = (__pyx_v_size * (__pyx_v_src->shape[__pyx_v_i]));
+    __pyx_v_size = (__pyx_v_size * __pyx_v_shape);
   }
 
-  /* "View.MemoryView":1181
- *         size *= src.shape[i]
+  /* "View.MemoryView":1184
+ *         size *= shape
  * 
  *     return size             # <<<<<<<<<<<<<<
  * 
@@ -16749,12 +15581,12 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
   __pyx_r = __pyx_v_size;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1173
+  /* "View.MemoryView":1177
  * 
  * @cname('__pyx_memoryview_slice_get_size')
  * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:             # <<<<<<<<<<<<<<
  *     "Return the size of the memory occupied by the slice in number of bytes"
- *     cdef int i
+ *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  */
 
   /* function exit code */
@@ -16762,7 +15594,7 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
   return __pyx_r;
 }
 
-/* "View.MemoryView":1184
+/* "View.MemoryView":1187
  * 
  * @cname('__pyx_fill_contig_strides_array')
  * cdef Py_ssize_t fill_contig_strides_array(             # <<<<<<<<<<<<<<
@@ -16778,7 +15610,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   int __pyx_t_3;
   int __pyx_t_4;
 
-  /* "View.MemoryView":1193
+  /* "View.MemoryView":1196
  *     cdef int idx
  * 
  *     if order == 'F':             # <<<<<<<<<<<<<<
@@ -16788,38 +15620,38 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   __pyx_t_1 = ((__pyx_v_order == 'F') != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1194
+    /* "View.MemoryView":1197
  * 
  *     if order == 'F':
  *         for idx in range(ndim):             # <<<<<<<<<<<<<<
  *             strides[idx] = stride
- *             stride = stride * shape[idx]
+ *             stride *= shape[idx]
  */
     __pyx_t_2 = __pyx_v_ndim;
     __pyx_t_3 = __pyx_t_2;
     for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
       __pyx_v_idx = __pyx_t_4;
 
-      /* "View.MemoryView":1195
+      /* "View.MemoryView":1198
  *     if order == 'F':
  *         for idx in range(ndim):
  *             strides[idx] = stride             # <<<<<<<<<<<<<<
- *             stride = stride * shape[idx]
+ *             stride *= shape[idx]
  *     else:
  */
       (__pyx_v_strides[__pyx_v_idx]) = __pyx_v_stride;
 
-      /* "View.MemoryView":1196
+      /* "View.MemoryView":1199
  *         for idx in range(ndim):
  *             strides[idx] = stride
- *             stride = stride * shape[idx]             # <<<<<<<<<<<<<<
+ *             stride *= shape[idx]             # <<<<<<<<<<<<<<
  *     else:
  *         for idx in range(ndim - 1, -1, -1):
  */
       __pyx_v_stride = (__pyx_v_stride * (__pyx_v_shape[__pyx_v_idx]));
     }
 
-    /* "View.MemoryView":1193
+    /* "View.MemoryView":1196
  *     cdef int idx
  * 
  *     if order == 'F':             # <<<<<<<<<<<<<<
@@ -16829,30 +15661,30 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1198
- *             stride = stride * shape[idx]
+  /* "View.MemoryView":1201
+ *             stride *= shape[idx]
  *     else:
  *         for idx in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
  *             strides[idx] = stride
- *             stride = stride * shape[idx]
+ *             stride *= shape[idx]
  */
   /*else*/ {
     for (__pyx_t_2 = (__pyx_v_ndim - 1); __pyx_t_2 > -1; __pyx_t_2-=1) {
       __pyx_v_idx = __pyx_t_2;
 
-      /* "View.MemoryView":1199
+      /* "View.MemoryView":1202
  *     else:
  *         for idx in range(ndim - 1, -1, -1):
  *             strides[idx] = stride             # <<<<<<<<<<<<<<
- *             stride = stride * shape[idx]
+ *             stride *= shape[idx]
  * 
  */
       (__pyx_v_strides[__pyx_v_idx]) = __pyx_v_stride;
 
-      /* "View.MemoryView":1200
+      /* "View.MemoryView":1203
  *         for idx in range(ndim - 1, -1, -1):
  *             strides[idx] = stride
- *             stride = stride * shape[idx]             # <<<<<<<<<<<<<<
+ *             stride *= shape[idx]             # <<<<<<<<<<<<<<
  * 
  *     return stride
  */
@@ -16861,8 +15693,8 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1202
- *             stride = stride * shape[idx]
+  /* "View.MemoryView":1205
+ *             stride *= shape[idx]
  * 
  *     return stride             # <<<<<<<<<<<<<<
  * 
@@ -16871,7 +15703,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   __pyx_r = __pyx_v_stride;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1184
+  /* "View.MemoryView":1187
  * 
  * @cname('__pyx_fill_contig_strides_array')
  * cdef Py_ssize_t fill_contig_strides_array(             # <<<<<<<<<<<<<<
@@ -16884,7 +15716,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   return __pyx_r;
 }
 
-/* "View.MemoryView":1205
+/* "View.MemoryView":1208
  * 
  * @cname('__pyx_memoryview_copy_data_to_temp')
  * cdef void *copy_data_to_temp(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
@@ -16904,8 +15736,11 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   struct __pyx_memoryview_obj *__pyx_t_4;
   int __pyx_t_5;
   int __pyx_t_6;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
-  /* "View.MemoryView":1216
+  /* "View.MemoryView":1219
  *     cdef void *result
  * 
  *     cdef size_t itemsize = src.memview.view.itemsize             # <<<<<<<<<<<<<<
@@ -16915,7 +15750,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_1 = __pyx_v_src->memview->view.itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":1217
+  /* "View.MemoryView":1220
  * 
  *     cdef size_t itemsize = src.memview.view.itemsize
  *     cdef size_t size = slice_get_size(src, ndim)             # <<<<<<<<<<<<<<
@@ -16924,7 +15759,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   __pyx_v_size = __pyx_memoryview_slice_get_size(__pyx_v_src, __pyx_v_ndim);
 
-  /* "View.MemoryView":1219
+  /* "View.MemoryView":1222
  *     cdef size_t size = slice_get_size(src, ndim)
  * 
  *     result = malloc(size)             # <<<<<<<<<<<<<<
@@ -16933,7 +15768,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   __pyx_v_result = malloc(__pyx_v_size);
 
-  /* "View.MemoryView":1220
+  /* "View.MemoryView":1223
  * 
  *     result = malloc(size)
  *     if not result:             # <<<<<<<<<<<<<<
@@ -16943,16 +15778,16 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_2 = ((!(__pyx_v_result != 0)) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1221
+    /* "View.MemoryView":1224
  *     result = malloc(size)
  *     if not result:
  *         _err(MemoryError, NULL)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_3 = __pyx_memoryview_err(__pyx_builtin_MemoryError, NULL); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 1221, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_err(__pyx_builtin_MemoryError, NULL); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 1224, __pyx_L1_error)
 
-    /* "View.MemoryView":1220
+    /* "View.MemoryView":1223
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  *     result = malloc(size)
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@@ -16961,7 +15796,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   }
 
-  /* "View.MemoryView":1224
+  /* "View.MemoryView":1227
  * 
  * 
  *     tmpslice.data = <char *> result             # <<<<<<<<<<<<<<
@@ -16970,7 +15805,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   __pyx_v_tmpslice->data = ((char *)__pyx_v_result);
 
-  /* "View.MemoryView":1225
+  /* "View.MemoryView":1228
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  *     tmpslice.data = <char *> result
  *     tmpslice.memview = src.memview             # <<<<<<<<<<<<<<
@@ -16980,7 +15815,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_4 = __pyx_v_src->memview;
   __pyx_v_tmpslice->memview = __pyx_t_4;
 
-  /* "View.MemoryView":1226
+  /* "View.MemoryView":1229
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  *     tmpslice.memview = src.memview
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -16992,7 +15827,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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     __pyx_v_i = __pyx_t_6;
 
-    /* "View.MemoryView":1227
+    /* "View.MemoryView":1230
  *     tmpslice.memview = src.memview
  *     for i in range(ndim):
  *         tmpslice.shape[i] = src.shape[i]             # <<<<<<<<<<<<<<
@@ -17001,7 +15836,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
     (__pyx_v_tmpslice->shape[__pyx_v_i]) = (__pyx_v_src->shape[__pyx_v_i]);
 
-    /* "View.MemoryView":1228
+    /* "View.MemoryView":1231
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  *         tmpslice.suboffsets[i] = -1             # <<<<<<<<<<<<<<
@@ -17011,7 +15846,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
     (__pyx_v_tmpslice->suboffsets[__pyx_v_i]) = -1L;
   }
 
-  /* "View.MemoryView":1230
+  /* "View.MemoryView":1233
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@@ -17020,7 +15855,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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-  /* "View.MemoryView":1234
+  /* "View.MemoryView":1237
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  * 
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -17032,7 +15867,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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-    /* "View.MemoryView":1235
+    /* "View.MemoryView":1238
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@@ -17042,7 +15877,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1236
+      /* "View.MemoryView":1239
  *     for i in range(ndim):
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@@ -17051,7 +15886,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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-      /* "View.MemoryView":1235
+      /* "View.MemoryView":1238
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@@ -17061,7 +15896,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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-  /* "View.MemoryView":1238
+  /* "View.MemoryView":1241
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  *     if slice_is_contig(src[0], order, ndim):             # <<<<<<<<<<<<<<
@@ -17071,7 +15906,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1239
+    /* "View.MemoryView":1242
  * 
  *     if slice_is_contig(src[0], order, ndim):
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@@ -17080,7 +15915,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
     (void)(memcpy(__pyx_v_result, __pyx_v_src->data, __pyx_v_size));
 
-    /* "View.MemoryView":1238
+    /* "View.MemoryView":1241
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  * 
  *     if slice_is_contig(src[0], order, ndim):             # <<<<<<<<<<<<<<
@@ -17090,7 +15925,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
     goto __pyx_L9;
   }
 
-  /* "View.MemoryView":1241
+  /* "View.MemoryView":1244
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@@ -17102,7 +15937,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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-  /* "View.MemoryView":1243
+  /* "View.MemoryView":1246
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  *     return result             # <<<<<<<<<<<<<<
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   __pyx_r = __pyx_v_result;
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-  /* "View.MemoryView":1205
+  /* "View.MemoryView":1208
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  * cdef void *copy_data_to_temp(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
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 }
 
-/* "View.MemoryView":1248
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   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
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+  int __pyx_lineno = 0;
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-  /* "View.MemoryView":1251
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-  __pyx_t_1 = __Pyx_PyInt_From_int(__pyx_v_i); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1251, __pyx_L1_error)
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-  __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_extent1); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1251, __pyx_L1_error)
+  __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_extent1); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1254, __pyx_L1_error)
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-  __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_extent2); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1251, __pyx_L1_error)
+  __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_extent2); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1254, __pyx_L1_error)
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-  __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1251, __pyx_L1_error)
+  __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1254, __pyx_L1_error)
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@@ -17181,24 +16019,24 @@ static int __pyx_memoryview_err_extents(int __pyx_v_i, Py_ssize_t __pyx_v_extent
   __pyx_t_2 = 0;
   __pyx_t_3 = 0;
 
-  /* "View.MemoryView":1250
+  /* "View.MemoryView":1253
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-  __pyx_t_3 = __Pyx_PyString_Format(__pyx_kp_s_got_differing_extents_in_dimensi, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1250, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyString_Format(__pyx_kp_s_got_differing_extents_in_dimensi, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1253, __pyx_L1_error)
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-  __pyx_t_4 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1250, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1253, __pyx_L1_error)
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-  __PYX_ERR(2, 1250, __pyx_L1_error)
+  __PYX_ERR(2, 1253, __pyx_L1_error)
 
-  /* "View.MemoryView":1248
+  /* "View.MemoryView":1251
  * 
  * @cname('__pyx_memoryview_err_extents')
  * cdef int _err_extents(int i, Py_ssize_t extent1,             # <<<<<<<<<<<<<<
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   return __pyx_r;
 }
 
-/* "View.MemoryView":1254
+/* "View.MemoryView":1257
  * 
  * @cname('__pyx_memoryview_err_dim')
  * cdef int _err_dim(object error, char *msg, int dim) except -1 with gil:             # <<<<<<<<<<<<<<
@@ -17236,24 +16074,27 @@ static int __pyx_memoryview_err_dim(PyObject *__pyx_v_error, char *__pyx_v_msg,
   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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   PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
   #endif
   __Pyx_RefNannySetupContext("_err_dim", 0);
   __Pyx_INCREF(__pyx_v_error);
 
-  /* "View.MemoryView":1255
+  /* "View.MemoryView":1258
  * @cname('__pyx_memoryview_err_dim')
  * cdef int _err_dim(object error, char *msg, int dim) except -1 with gil:
  *     raise error(msg.decode('ascii') % dim)             # <<<<<<<<<<<<<<
  * 
  * @cname('__pyx_memoryview_err')
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-  __pyx_t_2 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1255, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1258, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyInt_From_int(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1255, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_int(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1258, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_4 = PyUnicode_Format(__pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1255, __pyx_L1_error)
+  __pyx_t_4 = PyUnicode_Format(__pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1258, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -17271,14 +16112,14 @@ static int __pyx_memoryview_err_dim(PyObject *__pyx_v_error, char *__pyx_v_msg,
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   __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
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-  if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1255, __pyx_L1_error)
+  if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1258, __pyx_L1_error)
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __PYX_ERR(2, 1255, __pyx_L1_error)
+  __PYX_ERR(2, 1258, __pyx_L1_error)
 
-  /* "View.MemoryView":1254
+  /* "View.MemoryView":1257
  * 
  * @cname('__pyx_memoryview_err_dim')
  * cdef int _err_dim(object error, char *msg, int dim) except -1 with gil:             # <<<<<<<<<<<<<<
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   return __pyx_r;
 }
 
-/* "View.MemoryView":1258
+/* "View.MemoryView":1261
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  * @cname('__pyx_memoryview_err')
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   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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   PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
   #endif
   __Pyx_RefNannySetupContext("_err", 0);
   __Pyx_INCREF(__pyx_v_error);
 
-  /* "View.MemoryView":1259
+  /* "View.MemoryView":1262
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  * cdef int _err(object error, char *msg) except -1 with gil:
  *     if msg != NULL:             # <<<<<<<<<<<<<<
@@ -17334,14 +16178,14 @@ static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
   __pyx_t_1 = ((__pyx_v_msg != NULL) != 0);
   if (unlikely(__pyx_t_1)) {
 
-    /* "View.MemoryView":1260
+    /* "View.MemoryView":1263
  * cdef int _err(object error, char *msg) except -1 with gil:
  *     if msg != NULL:
  *         raise error(msg.decode('ascii'))             # <<<<<<<<<<<<<<
  *     else:
  *         raise error
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-    __pyx_t_3 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1260, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1263, __pyx_L1_error)
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@@ -17357,14 +16201,14 @@ static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
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     __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
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-    if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1260, __pyx_L1_error)
+    if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1263, __pyx_L1_error)
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     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+    __PYX_ERR(2, 1263, __pyx_L1_error)
 
-    /* "View.MemoryView":1259
+    /* "View.MemoryView":1262
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-  /* "View.MemoryView":1262
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   /*else*/ {
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-    __PYX_ERR(2, 1262, __pyx_L1_error)
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-  /* "View.MemoryView":1258
+  /* "View.MemoryView":1261
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   return __pyx_r;
 }
 
-/* "View.MemoryView":1265
+/* "View.MemoryView":1268
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  * @cname('__pyx_memoryview_copy_contents')
  * cdef int memoryview_copy_contents(__Pyx_memviewslice src,             # <<<<<<<<<<<<<<
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   int __pyx_t_6;
   void *__pyx_t_7;
   int __pyx_t_8;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
-  /* "View.MemoryView":1273
+  /* "View.MemoryView":1276
  *     Check for overlapping memory and verify the shapes.
  *     """
  *     cdef void *tmpdata = NULL             # <<<<<<<<<<<<<<
@@ -17445,7 +16292,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_tmpdata = NULL;
 
-  /* "View.MemoryView":1274
+  /* "View.MemoryView":1277
  *     """
  *     cdef void *tmpdata = NULL
  *     cdef size_t itemsize = src.memview.view.itemsize             # <<<<<<<<<<<<<<
@@ -17455,7 +16302,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_1 = __pyx_v_src.memview->view.itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":1276
+  /* "View.MemoryView":1279
  *     cdef size_t itemsize = src.memview.view.itemsize
  *     cdef int i
  *     cdef char order = get_best_order(&src, src_ndim)             # <<<<<<<<<<<<<<
@@ -17464,7 +16311,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_order = __pyx_get_best_slice_order((&__pyx_v_src), __pyx_v_src_ndim);
 
-  /* "View.MemoryView":1277
+  /* "View.MemoryView":1280
  *     cdef int i
  *     cdef char order = get_best_order(&src, src_ndim)
  *     cdef bint broadcasting = False             # <<<<<<<<<<<<<<
@@ -17473,7 +16320,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_broadcasting = 0;
 
-  /* "View.MemoryView":1278
+  /* "View.MemoryView":1281
  *     cdef char order = get_best_order(&src, src_ndim)
  *     cdef bint broadcasting = False
  *     cdef bint direct_copy = False             # <<<<<<<<<<<<<<
@@ -17482,7 +16329,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_direct_copy = 0;
 
-  /* "View.MemoryView":1281
+  /* "View.MemoryView":1284
  *     cdef __Pyx_memviewslice tmp
  * 
  *     if src_ndim < dst_ndim:             # <<<<<<<<<<<<<<
@@ -17492,7 +16339,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_2 = ((__pyx_v_src_ndim < __pyx_v_dst_ndim) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1282
+    /* "View.MemoryView":1285
  * 
  *     if src_ndim < dst_ndim:
  *         broadcast_leading(&src, src_ndim, dst_ndim)             # <<<<<<<<<<<<<<
@@ -17501,7 +16348,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     __pyx_memoryview_broadcast_leading((&__pyx_v_src), __pyx_v_src_ndim, __pyx_v_dst_ndim);
 
-    /* "View.MemoryView":1281
+    /* "View.MemoryView":1284
  *     cdef __Pyx_memviewslice tmp
  * 
  *     if src_ndim < dst_ndim:             # <<<<<<<<<<<<<<
@@ -17511,7 +16358,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1283
+  /* "View.MemoryView":1286
  *     if src_ndim < dst_ndim:
  *         broadcast_leading(&src, src_ndim, dst_ndim)
  *     elif dst_ndim < src_ndim:             # <<<<<<<<<<<<<<
@@ -17521,7 +16368,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_2 = ((__pyx_v_dst_ndim < __pyx_v_src_ndim) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1284
+    /* "View.MemoryView":1287
  *         broadcast_leading(&src, src_ndim, dst_ndim)
  *     elif dst_ndim < src_ndim:
  *         broadcast_leading(&dst, dst_ndim, src_ndim)             # <<<<<<<<<<<<<<
@@ -17530,7 +16377,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     __pyx_memoryview_broadcast_leading((&__pyx_v_dst), __pyx_v_dst_ndim, __pyx_v_src_ndim);
 
-    /* "View.MemoryView":1283
+    /* "View.MemoryView":1286
  *     if src_ndim < dst_ndim:
  *         broadcast_leading(&src, src_ndim, dst_ndim)
  *     elif dst_ndim < src_ndim:             # <<<<<<<<<<<<<<
@@ -17540,7 +16387,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1286
+  /* "View.MemoryView":1289
  *         broadcast_leading(&dst, dst_ndim, src_ndim)
  * 
  *     cdef int ndim = max(src_ndim, dst_ndim)             # <<<<<<<<<<<<<<
@@ -17556,7 +16403,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   }
   __pyx_v_ndim = __pyx_t_5;
 
-  /* "View.MemoryView":1288
+  /* "View.MemoryView":1291
  *     cdef int ndim = max(src_ndim, dst_ndim)
  * 
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -17568,7 +16415,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_i = __pyx_t_4;
 
-    /* "View.MemoryView":1289
+    /* "View.MemoryView":1292
  * 
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:             # <<<<<<<<<<<<<<
@@ -17578,7 +16425,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (((__pyx_v_src.shape[__pyx_v_i]) != (__pyx_v_dst.shape[__pyx_v_i])) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1290
+      /* "View.MemoryView":1293
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:
  *             if src.shape[i] == 1:             # <<<<<<<<<<<<<<
@@ -17588,7 +16435,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
       __pyx_t_2 = (((__pyx_v_src.shape[__pyx_v_i]) == 1) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":1291
+        /* "View.MemoryView":1294
  *         if src.shape[i] != dst.shape[i]:
  *             if src.shape[i] == 1:
  *                 broadcasting = True             # <<<<<<<<<<<<<<
@@ -17597,7 +16444,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
         __pyx_v_broadcasting = 1;
 
-        /* "View.MemoryView":1292
+        /* "View.MemoryView":1295
  *             if src.shape[i] == 1:
  *                 broadcasting = True
  *                 src.strides[i] = 0             # <<<<<<<<<<<<<<
@@ -17606,7 +16453,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
         (__pyx_v_src.strides[__pyx_v_i]) = 0;
 
-        /* "View.MemoryView":1290
+        /* "View.MemoryView":1293
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:
  *             if src.shape[i] == 1:             # <<<<<<<<<<<<<<
@@ -17616,7 +16463,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
         goto __pyx_L7;
       }
 
-      /* "View.MemoryView":1294
+      /* "View.MemoryView":1297
  *                 src.strides[i] = 0
  *             else:
  *                 _err_extents(i, dst.shape[i], src.shape[i])             # <<<<<<<<<<<<<<
@@ -17624,11 +16471,11 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  *         if src.suboffsets[i] >= 0:
  */
       /*else*/ {
-        __pyx_t_6 = __pyx_memoryview_err_extents(__pyx_v_i, (__pyx_v_dst.shape[__pyx_v_i]), (__pyx_v_src.shape[__pyx_v_i])); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(2, 1294, __pyx_L1_error)
+        __pyx_t_6 = __pyx_memoryview_err_extents(__pyx_v_i, (__pyx_v_dst.shape[__pyx_v_i]), (__pyx_v_src.shape[__pyx_v_i])); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(2, 1297, __pyx_L1_error)
       }
       __pyx_L7:;
 
-      /* "View.MemoryView":1289
+      /* "View.MemoryView":1292
  * 
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:             # <<<<<<<<<<<<<<
@@ -17637,7 +16484,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     }
 
-    /* "View.MemoryView":1296
+    /* "View.MemoryView":1299
  *                 _err_extents(i, dst.shape[i], src.shape[i])
  * 
  *         if src.suboffsets[i] >= 0:             # <<<<<<<<<<<<<<
@@ -17647,16 +16494,16 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (((__pyx_v_src.suboffsets[__pyx_v_i]) >= 0) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1297
+      /* "View.MemoryView":1300
  * 
  *         if src.suboffsets[i] >= 0:
  *             _err_dim(ValueError, "Dimension %d is not direct", i)             # <<<<<<<<<<<<<<
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):
  */
-      __pyx_t_6 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Dimension %d is not direct"), __pyx_v_i); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(2, 1297, __pyx_L1_error)
+      __pyx_t_6 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Dimension %d is not direct"), __pyx_v_i); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(2, 1300, __pyx_L1_error)
 
-      /* "View.MemoryView":1296
+      /* "View.MemoryView":1299
  *                 _err_extents(i, dst.shape[i], src.shape[i])
  * 
  *         if src.suboffsets[i] >= 0:             # <<<<<<<<<<<<<<
@@ -17666,7 +16513,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     }
   }
 
-  /* "View.MemoryView":1299
+  /* "View.MemoryView":1302
  *             _err_dim(ValueError, "Dimension %d is not direct", i)
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):             # <<<<<<<<<<<<<<
@@ -17676,7 +16523,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_2 = (__pyx_slices_overlap((&__pyx_v_src), (&__pyx_v_dst), __pyx_v_ndim, __pyx_v_itemsize) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1301
+    /* "View.MemoryView":1304
  *     if slices_overlap(&src, &dst, ndim, itemsize):
  * 
  *         if not slice_is_contig(src, order, ndim):             # <<<<<<<<<<<<<<
@@ -17686,7 +16533,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = ((!(__pyx_memviewslice_is_contig(__pyx_v_src, __pyx_v_order, __pyx_v_ndim) != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1302
+      /* "View.MemoryView":1305
  * 
  *         if not slice_is_contig(src, order, ndim):
  *             order = get_best_order(&dst, ndim)             # <<<<<<<<<<<<<<
@@ -17695,7 +16542,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_order = __pyx_get_best_slice_order((&__pyx_v_dst), __pyx_v_ndim);
 
-      /* "View.MemoryView":1301
+      /* "View.MemoryView":1304
  *     if slices_overlap(&src, &dst, ndim, itemsize):
  * 
  *         if not slice_is_contig(src, order, ndim):             # <<<<<<<<<<<<<<
@@ -17704,17 +16551,17 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     }
 
-    /* "View.MemoryView":1304
+    /* "View.MemoryView":1307
  *             order = get_best_order(&dst, ndim)
  * 
  *         tmpdata = copy_data_to_temp(&src, &tmp, order, ndim)             # <<<<<<<<<<<<<<
  *         src = tmp
  * 
  */
-    __pyx_t_7 = __pyx_memoryview_copy_data_to_temp((&__pyx_v_src), (&__pyx_v_tmp), __pyx_v_order, __pyx_v_ndim); if (unlikely(__pyx_t_7 == ((void *)NULL))) __PYX_ERR(2, 1304, __pyx_L1_error)
+    __pyx_t_7 = __pyx_memoryview_copy_data_to_temp((&__pyx_v_src), (&__pyx_v_tmp), __pyx_v_order, __pyx_v_ndim); if (unlikely(__pyx_t_7 == ((void *)NULL))) __PYX_ERR(2, 1307, __pyx_L1_error)
     __pyx_v_tmpdata = __pyx_t_7;
 
-    /* "View.MemoryView":1305
+    /* "View.MemoryView":1308
  * 
  *         tmpdata = copy_data_to_temp(&src, &tmp, order, ndim)
  *         src = tmp             # <<<<<<<<<<<<<<
@@ -17723,7 +16570,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     __pyx_v_src = __pyx_v_tmp;
 
-    /* "View.MemoryView":1299
+    /* "View.MemoryView":1302
  *             _err_dim(ValueError, "Dimension %d is not direct", i)
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):             # <<<<<<<<<<<<<<
@@ -17732,7 +16579,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1307
+  /* "View.MemoryView":1310
  *         src = tmp
  * 
  *     if not broadcasting:             # <<<<<<<<<<<<<<
@@ -17742,7 +16589,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_2 = ((!(__pyx_v_broadcasting != 0)) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1310
+    /* "View.MemoryView":1313
  * 
  * 
  *         if slice_is_contig(src, 'C', ndim):             # <<<<<<<<<<<<<<
@@ -17752,7 +16599,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (__pyx_memviewslice_is_contig(__pyx_v_src, 'C', __pyx_v_ndim) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1311
+      /* "View.MemoryView":1314
  * 
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)             # <<<<<<<<<<<<<<
@@ -17761,7 +16608,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_direct_copy = __pyx_memviewslice_is_contig(__pyx_v_dst, 'C', __pyx_v_ndim);
 
-      /* "View.MemoryView":1310
+      /* "View.MemoryView":1313
  * 
  * 
  *         if slice_is_contig(src, 'C', ndim):             # <<<<<<<<<<<<<<
@@ -17771,7 +16618,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
       goto __pyx_L12;
     }
 
-    /* "View.MemoryView":1312
+    /* "View.MemoryView":1315
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):             # <<<<<<<<<<<<<<
@@ -17781,7 +16628,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (__pyx_memviewslice_is_contig(__pyx_v_src, 'F', __pyx_v_ndim) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1313
+      /* "View.MemoryView":1316
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):
  *             direct_copy = slice_is_contig(dst, 'F', ndim)             # <<<<<<<<<<<<<<
@@ -17790,7 +16637,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_direct_copy = __pyx_memviewslice_is_contig(__pyx_v_dst, 'F', __pyx_v_ndim);
 
-      /* "View.MemoryView":1312
+      /* "View.MemoryView":1315
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):             # <<<<<<<<<<<<<<
@@ -17800,7 +16647,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     }
     __pyx_L12:;
 
-    /* "View.MemoryView":1315
+    /* "View.MemoryView":1318
  *             direct_copy = slice_is_contig(dst, 'F', ndim)
  * 
  *         if direct_copy:             # <<<<<<<<<<<<<<
@@ -17810,7 +16657,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (__pyx_v_direct_copy != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1317
+      /* "View.MemoryView":1320
  *         if direct_copy:
  * 
  *             refcount_copying(&dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
@@ -17819,7 +16666,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-      /* "View.MemoryView":1318
+      /* "View.MemoryView":1321
  * 
  *             refcount_copying(&dst, dtype_is_object, ndim, False)
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))             # <<<<<<<<<<<<<<
@@ -17828,7 +16675,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       (void)(memcpy(__pyx_v_dst.data, __pyx_v_src.data, __pyx_memoryview_slice_get_size((&__pyx_v_src), __pyx_v_ndim)));
 
-      /* "View.MemoryView":1319
+      /* "View.MemoryView":1322
  *             refcount_copying(&dst, dtype_is_object, ndim, False)
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))
  *             refcount_copying(&dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
@@ -17837,7 +16684,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-      /* "View.MemoryView":1320
+      /* "View.MemoryView":1323
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))
  *             refcount_copying(&dst, dtype_is_object, ndim, True)
  *             free(tmpdata)             # <<<<<<<<<<<<<<
@@ -17846,7 +16693,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       free(__pyx_v_tmpdata);
 
-      /* "View.MemoryView":1321
+      /* "View.MemoryView":1324
  *             refcount_copying(&dst, dtype_is_object, ndim, True)
  *             free(tmpdata)
  *             return 0             # <<<<<<<<<<<<<<
@@ -17856,7 +16703,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
       __pyx_r = 0;
       goto __pyx_L0;
 
-      /* "View.MemoryView":1315
+      /* "View.MemoryView":1318
  *             direct_copy = slice_is_contig(dst, 'F', ndim)
  * 
  *         if direct_copy:             # <<<<<<<<<<<<<<
@@ -17865,7 +16712,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     }
 
-    /* "View.MemoryView":1307
+    /* "View.MemoryView":1310
  *         src = tmp
  * 
  *     if not broadcasting:             # <<<<<<<<<<<<<<
@@ -17874,7 +16721,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1323
+  /* "View.MemoryView":1326
  *             return 0
  * 
  *     if order == 'F' == get_best_order(&dst, ndim):             # <<<<<<<<<<<<<<
@@ -17888,25 +16735,25 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_8 = (__pyx_t_2 != 0);
   if (__pyx_t_8) {
 
-    /* "View.MemoryView":1326
+    /* "View.MemoryView":1329
  * 
  * 
  *         transpose_memslice(&src)             # <<<<<<<<<<<<<<
  *         transpose_memslice(&dst)
  * 
  */
-    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_src)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(2, 1326, __pyx_L1_error)
+    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_src)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(2, 1329, __pyx_L1_error)
 
-    /* "View.MemoryView":1327
+    /* "View.MemoryView":1330
  * 
  *         transpose_memslice(&src)
  *         transpose_memslice(&dst)             # <<<<<<<<<<<<<<
  * 
  *     refcount_copying(&dst, dtype_is_object, ndim, False)
  */
-    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_dst)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(2, 1327, __pyx_L1_error)
+    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_dst)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(2, 1330, __pyx_L1_error)
 
-    /* "View.MemoryView":1323
+    /* "View.MemoryView":1326
  *             return 0
  * 
  *     if order == 'F' == get_best_order(&dst, ndim):             # <<<<<<<<<<<<<<
@@ -17915,7 +16762,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1329
+  /* "View.MemoryView":1332
  *         transpose_memslice(&dst)
  * 
  *     refcount_copying(&dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
@@ -17924,7 +16771,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-  /* "View.MemoryView":1330
+  /* "View.MemoryView":1333
  * 
  *     refcount_copying(&dst, dtype_is_object, ndim, False)
  *     copy_strided_to_strided(&src, &dst, ndim, itemsize)             # <<<<<<<<<<<<<<
@@ -17933,7 +16780,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   copy_strided_to_strided((&__pyx_v_src), (&__pyx_v_dst), __pyx_v_ndim, __pyx_v_itemsize);
 
-  /* "View.MemoryView":1331
+  /* "View.MemoryView":1334
  *     refcount_copying(&dst, dtype_is_object, ndim, False)
  *     copy_strided_to_strided(&src, &dst, ndim, itemsize)
  *     refcount_copying(&dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
@@ -17942,7 +16789,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-  /* "View.MemoryView":1333
+  /* "View.MemoryView":1336
  *     refcount_copying(&dst, dtype_is_object, ndim, True)
  * 
  *     free(tmpdata)             # <<<<<<<<<<<<<<
@@ -17951,7 +16798,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   free(__pyx_v_tmpdata);
 
-  /* "View.MemoryView":1334
+  /* "View.MemoryView":1337
  * 
  *     free(tmpdata)
  *     return 0             # <<<<<<<<<<<<<<
@@ -17961,7 +16808,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_r = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1265
+  /* "View.MemoryView":1268
  * 
  * @cname('__pyx_memoryview_copy_contents')
  * cdef int memoryview_copy_contents(__Pyx_memviewslice src,             # <<<<<<<<<<<<<<
@@ -17985,7 +16832,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   return __pyx_r;
 }
 
-/* "View.MemoryView":1337
+/* "View.MemoryView":1340
  * 
  * @cname('__pyx_memoryview_broadcast_leading')
  * cdef void broadcast_leading(__Pyx_memviewslice *mslice,             # <<<<<<<<<<<<<<
@@ -18000,7 +16847,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   int __pyx_t_2;
   int __pyx_t_3;
 
-  /* "View.MemoryView":1341
+  /* "View.MemoryView":1344
  *                             int ndim_other) nogil:
  *     cdef int i
  *     cdef int offset = ndim_other - ndim             # <<<<<<<<<<<<<<
@@ -18009,7 +16856,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
   __pyx_v_offset = (__pyx_v_ndim_other - __pyx_v_ndim);
 
-  /* "View.MemoryView":1343
+  /* "View.MemoryView":1346
  *     cdef int offset = ndim_other - ndim
  * 
  *     for i in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
@@ -18019,7 +16866,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   for (__pyx_t_1 = (__pyx_v_ndim - 1); __pyx_t_1 > -1; __pyx_t_1-=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":1344
+    /* "View.MemoryView":1347
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         mslice.shape[i + offset] = mslice.shape[i]             # <<<<<<<<<<<<<<
@@ -18028,7 +16875,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->shape[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->shape[__pyx_v_i]);
 
-    /* "View.MemoryView":1345
+    /* "View.MemoryView":1348
  *     for i in range(ndim - 1, -1, -1):
  *         mslice.shape[i + offset] = mslice.shape[i]
  *         mslice.strides[i + offset] = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -18037,7 +16884,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->strides[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-    /* "View.MemoryView":1346
+    /* "View.MemoryView":1349
  *         mslice.shape[i + offset] = mslice.shape[i]
  *         mslice.strides[i + offset] = mslice.strides[i]
  *         mslice.suboffsets[i + offset] = mslice.suboffsets[i]             # <<<<<<<<<<<<<<
@@ -18047,7 +16894,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
     (__pyx_v_mslice->suboffsets[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->suboffsets[__pyx_v_i]);
   }
 
-  /* "View.MemoryView":1348
+  /* "View.MemoryView":1351
  *         mslice.suboffsets[i + offset] = mslice.suboffsets[i]
  * 
  *     for i in range(offset):             # <<<<<<<<<<<<<<
@@ -18059,7 +16906,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "View.MemoryView":1349
+    /* "View.MemoryView":1352
  * 
  *     for i in range(offset):
  *         mslice.shape[i] = 1             # <<<<<<<<<<<<<<
@@ -18068,7 +16915,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->shape[__pyx_v_i]) = 1;
 
-    /* "View.MemoryView":1350
+    /* "View.MemoryView":1353
  *     for i in range(offset):
  *         mslice.shape[i] = 1
  *         mslice.strides[i] = mslice.strides[0]             # <<<<<<<<<<<<<<
@@ -18077,7 +16924,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->strides[__pyx_v_i]) = (__pyx_v_mslice->strides[0]);
 
-    /* "View.MemoryView":1351
+    /* "View.MemoryView":1354
  *         mslice.shape[i] = 1
  *         mslice.strides[i] = mslice.strides[0]
  *         mslice.suboffsets[i] = -1             # <<<<<<<<<<<<<<
@@ -18087,7 +16934,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
     (__pyx_v_mslice->suboffsets[__pyx_v_i]) = -1L;
   }
 
-  /* "View.MemoryView":1337
+  /* "View.MemoryView":1340
  * 
  * @cname('__pyx_memoryview_broadcast_leading')
  * cdef void broadcast_leading(__Pyx_memviewslice *mslice,             # <<<<<<<<<<<<<<
@@ -18098,7 +16945,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   /* function exit code */
 }
 
-/* "View.MemoryView":1359
+/* "View.MemoryView":1362
  * 
  * @cname('__pyx_memoryview_refcount_copying')
  * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object,             # <<<<<<<<<<<<<<
@@ -18109,7 +16956,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
 static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, int __pyx_v_dtype_is_object, int __pyx_v_ndim, int __pyx_v_inc) {
   int __pyx_t_1;
 
-  /* "View.MemoryView":1363
+  /* "View.MemoryView":1366
  * 
  * 
  *     if dtype_is_object:             # <<<<<<<<<<<<<<
@@ -18119,7 +16966,7 @@ static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, i
   __pyx_t_1 = (__pyx_v_dtype_is_object != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1364
+    /* "View.MemoryView":1367
  * 
  *     if dtype_is_object:
  *         refcount_objects_in_slice_with_gil(dst.data, dst.shape,             # <<<<<<<<<<<<<<
@@ -18128,7 +16975,7 @@ static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, i
  */
     __pyx_memoryview_refcount_objects_in_slice_with_gil(__pyx_v_dst->data, __pyx_v_dst->shape, __pyx_v_dst->strides, __pyx_v_ndim, __pyx_v_inc);
 
-    /* "View.MemoryView":1363
+    /* "View.MemoryView":1366
  * 
  * 
  *     if dtype_is_object:             # <<<<<<<<<<<<<<
@@ -18137,7 +16984,7 @@ static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, i
  */
   }
 
-  /* "View.MemoryView":1359
+  /* "View.MemoryView":1362
  * 
  * @cname('__pyx_memoryview_refcount_copying')
  * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object,             # <<<<<<<<<<<<<<
@@ -18148,7 +16995,7 @@ static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, i
   /* function exit code */
 }
 
-/* "View.MemoryView":1368
+/* "View.MemoryView":1371
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice_with_gil')
  * cdef void refcount_objects_in_slice_with_gil(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -18163,7 +17010,7 @@ static void __pyx_memoryview_refcount_objects_in_slice_with_gil(char *__pyx_v_da
   #endif
   __Pyx_RefNannySetupContext("refcount_objects_in_slice_with_gil", 0);
 
-  /* "View.MemoryView":1371
+  /* "View.MemoryView":1374
  *                                              Py_ssize_t *strides, int ndim,
  *                                              bint inc) with gil:
  *     refcount_objects_in_slice(data, shape, strides, ndim, inc)             # <<<<<<<<<<<<<<
@@ -18172,7 +17019,7 @@ static void __pyx_memoryview_refcount_objects_in_slice_with_gil(char *__pyx_v_da
  */
   __pyx_memoryview_refcount_objects_in_slice(__pyx_v_data, __pyx_v_shape, __pyx_v_strides, __pyx_v_ndim, __pyx_v_inc);
 
-  /* "View.MemoryView":1368
+  /* "View.MemoryView":1371
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice_with_gil')
  * cdef void refcount_objects_in_slice_with_gil(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -18187,7 +17034,7 @@ static void __pyx_memoryview_refcount_objects_in_slice_with_gil(char *__pyx_v_da
   #endif
 }
 
-/* "View.MemoryView":1374
+/* "View.MemoryView":1377
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice')
  * cdef void refcount_objects_in_slice(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -18204,7 +17051,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
   int __pyx_t_4;
   __Pyx_RefNannySetupContext("refcount_objects_in_slice", 0);
 
-  /* "View.MemoryView":1378
+  /* "View.MemoryView":1381
  *     cdef Py_ssize_t i
  * 
  *     for i in range(shape[0]):             # <<<<<<<<<<<<<<
@@ -18216,7 +17063,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "View.MemoryView":1379
+    /* "View.MemoryView":1382
  * 
  *     for i in range(shape[0]):
  *         if ndim == 1:             # <<<<<<<<<<<<<<
@@ -18226,7 +17073,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
     __pyx_t_4 = ((__pyx_v_ndim == 1) != 0);
     if (__pyx_t_4) {
 
-      /* "View.MemoryView":1380
+      /* "View.MemoryView":1383
  *     for i in range(shape[0]):
  *         if ndim == 1:
  *             if inc:             # <<<<<<<<<<<<<<
@@ -18236,7 +17083,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
       __pyx_t_4 = (__pyx_v_inc != 0);
       if (__pyx_t_4) {
 
-        /* "View.MemoryView":1381
+        /* "View.MemoryView":1384
  *         if ndim == 1:
  *             if inc:
  *                 Py_INCREF((<PyObject **> data)[0])             # <<<<<<<<<<<<<<
@@ -18245,7 +17092,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
  */
         Py_INCREF((((PyObject **)__pyx_v_data)[0]));
 
-        /* "View.MemoryView":1380
+        /* "View.MemoryView":1383
  *     for i in range(shape[0]):
  *         if ndim == 1:
  *             if inc:             # <<<<<<<<<<<<<<
@@ -18255,7 +17102,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
         goto __pyx_L6;
       }
 
-      /* "View.MemoryView":1383
+      /* "View.MemoryView":1386
  *                 Py_INCREF((<PyObject **> data)[0])
  *             else:
  *                 Py_DECREF((<PyObject **> data)[0])             # <<<<<<<<<<<<<<
@@ -18267,7 +17114,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
       }
       __pyx_L6:;
 
-      /* "View.MemoryView":1379
+      /* "View.MemoryView":1382
  * 
  *     for i in range(shape[0]):
  *         if ndim == 1:             # <<<<<<<<<<<<<<
@@ -18277,7 +17124,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
       goto __pyx_L5;
     }
 
-    /* "View.MemoryView":1385
+    /* "View.MemoryView":1388
  *                 Py_DECREF((<PyObject **> data)[0])
  *         else:
  *             refcount_objects_in_slice(data, shape + 1, strides + 1,             # <<<<<<<<<<<<<<
@@ -18286,7 +17133,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
  */
     /*else*/ {
 
-      /* "View.MemoryView":1386
+      /* "View.MemoryView":1389
  *         else:
  *             refcount_objects_in_slice(data, shape + 1, strides + 1,
  *                                       ndim - 1, inc)             # <<<<<<<<<<<<<<
@@ -18297,7 +17144,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
     }
     __pyx_L5:;
 
-    /* "View.MemoryView":1388
+    /* "View.MemoryView":1391
  *                                       ndim - 1, inc)
  * 
  *         data += strides[0]             # <<<<<<<<<<<<<<
@@ -18307,7 +17154,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
     __pyx_v_data = (__pyx_v_data + (__pyx_v_strides[0]));
   }
 
-  /* "View.MemoryView":1374
+  /* "View.MemoryView":1377
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice')
  * cdef void refcount_objects_in_slice(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -18319,7 +17166,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
   __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":1394
+/* "View.MemoryView":1397
  * 
  * @cname('__pyx_memoryview_slice_assign_scalar')
  * cdef void slice_assign_scalar(__Pyx_memviewslice *dst, int ndim,             # <<<<<<<<<<<<<<
@@ -18329,7 +17176,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
 
 static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst, int __pyx_v_ndim, size_t __pyx_v_itemsize, void *__pyx_v_item, int __pyx_v_dtype_is_object) {
 
-  /* "View.MemoryView":1397
+  /* "View.MemoryView":1400
  *                               size_t itemsize, void *item,
  *                               bint dtype_is_object) nogil:
  *     refcount_copying(dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
@@ -18338,7 +17185,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst
  */
   __pyx_memoryview_refcount_copying(__pyx_v_dst, __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-  /* "View.MemoryView":1398
+  /* "View.MemoryView":1401
  *                               bint dtype_is_object) nogil:
  *     refcount_copying(dst, dtype_is_object, ndim, False)
  *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim,             # <<<<<<<<<<<<<<
@@ -18347,7 +17194,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst
  */
   __pyx_memoryview__slice_assign_scalar(__pyx_v_dst->data, __pyx_v_dst->shape, __pyx_v_dst->strides, __pyx_v_ndim, __pyx_v_itemsize, __pyx_v_item);
 
-  /* "View.MemoryView":1400
+  /* "View.MemoryView":1403
  *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim,
  *                          itemsize, item)
  *     refcount_copying(dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
@@ -18356,7 +17203,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst
  */
   __pyx_memoryview_refcount_copying(__pyx_v_dst, __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-  /* "View.MemoryView":1394
+  /* "View.MemoryView":1397
  * 
  * @cname('__pyx_memoryview_slice_assign_scalar')
  * cdef void slice_assign_scalar(__Pyx_memviewslice *dst, int ndim,             # <<<<<<<<<<<<<<
@@ -18367,7 +17214,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst
   /* function exit code */
 }
 
-/* "View.MemoryView":1404
+/* "View.MemoryView":1407
  * 
  * @cname('__pyx_memoryview__slice_assign_scalar')
  * cdef void _slice_assign_scalar(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -18384,7 +17231,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
   Py_ssize_t __pyx_t_3;
   Py_ssize_t __pyx_t_4;
 
-  /* "View.MemoryView":1408
+  /* "View.MemoryView":1411
  *                               size_t itemsize, void *item) nogil:
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t stride = strides[0]             # <<<<<<<<<<<<<<
@@ -18393,7 +17240,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
   __pyx_v_stride = (__pyx_v_strides[0]);
 
-  /* "View.MemoryView":1409
+  /* "View.MemoryView":1412
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t stride = strides[0]
  *     cdef Py_ssize_t extent = shape[0]             # <<<<<<<<<<<<<<
@@ -18402,7 +17249,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
   __pyx_v_extent = (__pyx_v_shape[0]);
 
-  /* "View.MemoryView":1411
+  /* "View.MemoryView":1414
  *     cdef Py_ssize_t extent = shape[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -18412,7 +17259,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
   __pyx_t_1 = ((__pyx_v_ndim == 1) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1412
+    /* "View.MemoryView":1415
  * 
  *     if ndim == 1:
  *         for i in range(extent):             # <<<<<<<<<<<<<<
@@ -18424,7 +17271,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
     for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
       __pyx_v_i = __pyx_t_4;
 
-      /* "View.MemoryView":1413
+      /* "View.MemoryView":1416
  *     if ndim == 1:
  *         for i in range(extent):
  *             memcpy(data, item, itemsize)             # <<<<<<<<<<<<<<
@@ -18433,7 +17280,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
       (void)(memcpy(__pyx_v_data, __pyx_v_item, __pyx_v_itemsize));
 
-      /* "View.MemoryView":1414
+      /* "View.MemoryView":1417
  *         for i in range(extent):
  *             memcpy(data, item, itemsize)
  *             data += stride             # <<<<<<<<<<<<<<
@@ -18443,7 +17290,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
       __pyx_v_data = (__pyx_v_data + __pyx_v_stride);
     }
 
-    /* "View.MemoryView":1411
+    /* "View.MemoryView":1414
  *     cdef Py_ssize_t extent = shape[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -18453,7 +17300,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1416
+  /* "View.MemoryView":1419
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  *     else:
  *         for i in range(extent):             # <<<<<<<<<<<<<<
@@ -18466,7 +17313,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
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       __pyx_v_i = __pyx_t_4;
 
-      /* "View.MemoryView":1417
+      /* "View.MemoryView":1420
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  *         for i in range(extent):
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@@ -18475,7 +17322,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
       __pyx_memoryview__slice_assign_scalar(__pyx_v_data, (__pyx_v_shape + 1), (__pyx_v_strides + 1), (__pyx_v_ndim - 1), __pyx_v_itemsize, __pyx_v_item);
 
-      /* "View.MemoryView":1419
+      /* "View.MemoryView":1422
  *             _slice_assign_scalar(data, shape + 1, strides + 1,
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  *             data += stride             # <<<<<<<<<<<<<<
@@ -18487,7 +17334,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1404
+  /* "View.MemoryView":1407
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  * @cname('__pyx_memoryview__slice_assign_scalar')
  * cdef void _slice_assign_scalar(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
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   PyObject *__pyx_v___pyx_type = 0;
   long __pyx_v___pyx_checksum;
   PyObject *__pyx_v___pyx_state = 0;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__pyx_unpickle_Enum (wrapper)", 0);
@@ -18588,6 +17438,9 @@ static PyObject *__pyx_pf_15View_dot_MemoryView___pyx_unpickle_Enum(CYTHON_UNUSE
   PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
   int __pyx_t_6;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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@@ -18776,6 +17629,9 @@ static PyObject *__pyx_unpickle_Enum__set_state(struct __pyx_MemviewEnum_obj *__
   PyObject *__pyx_t_6 = NULL;
   PyObject *__pyx_t_7 = NULL;
   PyObject *__pyx_t_8 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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@@ -18917,9 +17773,9 @@ static void __pyx_tp_dealloc_array(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
     __pyx_array___dealloc__(o);
-    --Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
     PyErr_Restore(etype, eval, etb);
   }
   Py_CLEAR(p->mode);
@@ -19012,7 +17868,12 @@ static PyTypeObject __pyx_type___pyx_array = {
   sizeof(struct __pyx_array_obj), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_array, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -19062,6 +17923,12 @@ static PyTypeObject __pyx_type___pyx_array = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 
 static PyObject *__pyx_tp_new_Enum(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
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   sizeof(struct __pyx_MemviewEnum_obj), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_Enum, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -19170,6 +18042,12 @@ static PyTypeObject __pyx_type___pyx_MemviewEnum = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct_memoryview __pyx_vtable_memoryview;
 
@@ -19206,9 +18084,9 @@ static void __pyx_tp_dealloc_memoryview(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
     __pyx_memoryview___dealloc__(o);
-    --Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
     PyErr_Restore(etype, eval, etb);
   }
   Py_CLEAR(p->obj);
@@ -19370,7 +18248,12 @@ static PyTypeObject __pyx_type___pyx_memoryview = {
   sizeof(struct __pyx_memoryview_obj), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_memoryview, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -19420,6 +18303,12 @@ static PyTypeObject __pyx_type___pyx_memoryview = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct__memoryviewslice __pyx_vtable__memoryviewslice;
 
@@ -19445,9 +18334,9 @@ static void __pyx_tp_dealloc__memoryviewslice(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
     __pyx_memoryviewslice___dealloc__(o);
-    --Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
     PyErr_Restore(etype, eval, etb);
   }
   Py_CLEAR(p->from_object);
@@ -19497,7 +18386,12 @@ static PyTypeObject __pyx_type___pyx_memoryviewslice = {
   sizeof(struct __pyx_memoryviewslice_obj), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc__memoryviewslice, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -19555,6 +18449,12 @@ static PyTypeObject __pyx_type___pyx_memoryviewslice = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 
 static PyMethodDef __pyx_methods[] = {
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   {&__pyx_kp_s_Empty_shape_tuple_for_cython_arr, __pyx_k_Empty_shape_tuple_for_cython_arr, sizeof(__pyx_k_Empty_shape_tuple_for_cython_arr), 0, 0, 1, 0},
-  {&__pyx_kp_u_Format_string_allocated_too_shor, __pyx_k_Format_string_allocated_too_shor, sizeof(__pyx_k_Format_string_allocated_too_shor), 0, 1, 0, 0},
-  {&__pyx_kp_u_Format_string_allocated_too_shor_2, __pyx_k_Format_string_allocated_too_shor_2, sizeof(__pyx_k_Format_string_allocated_too_shor_2), 0, 1, 0, 0},
   {&__pyx_n_s_GPy_kern_src_stationary_cython, __pyx_k_GPy_kern_src_stationary_cython, sizeof(__pyx_k_GPy_kern_src_stationary_cython), 0, 0, 1, 1},
   {&__pyx_kp_s_GPy_kern_src_stationary_cython_p, __pyx_k_GPy_kern_src_stationary_cython_p, sizeof(__pyx_k_GPy_kern_src_stationary_cython_p), 0, 0, 1, 0},
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   {&__pyx_kp_s_MemoryView_of_r_object, __pyx_k_MemoryView_of_r_object, sizeof(__pyx_k_MemoryView_of_r_object), 0, 0, 1, 0},
   {&__pyx_n_s_N, __pyx_k_N, sizeof(__pyx_k_N), 0, 0, 1, 1},
-  {&__pyx_kp_u_Non_native_byte_order_not_suppor, __pyx_k_Non_native_byte_order_not_suppor, sizeof(__pyx_k_Non_native_byte_order_not_suppor), 0, 1, 0, 0},
   {&__pyx_n_b_O, __pyx_k_O, sizeof(__pyx_k_O), 0, 0, 0, 1},
   {&__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_k_Out_of_bounds_on_buffer_access_a, sizeof(__pyx_k_Out_of_bounds_on_buffer_access_a), 0, 0, 1, 0},
   {&__pyx_n_s_PickleError, __pyx_k_PickleError, sizeof(__pyx_k_PickleError), 0, 0, 1, 1},
   {&__pyx_n_s_Q, __pyx_k_Q, sizeof(__pyx_k_Q), 0, 0, 1, 1},
-  {&__pyx_n_s_RuntimeError, __pyx_k_RuntimeError, sizeof(__pyx_k_RuntimeError), 0, 0, 1, 1},
   {&__pyx_n_s_TypeError, __pyx_k_TypeError, sizeof(__pyx_k_TypeError), 0, 0, 1, 1},
   {&__pyx_kp_s_Unable_to_convert_item_to_object, __pyx_k_Unable_to_convert_item_to_object, sizeof(__pyx_k_Unable_to_convert_item_to_object), 0, 0, 1, 0},
   {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
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   {&__pyx_n_s_name_2, __pyx_k_name_2, sizeof(__pyx_k_name_2), 0, 0, 1, 1},
   {&__pyx_n_s_nd, __pyx_k_nd, sizeof(__pyx_k_nd), 0, 0, 1, 1},
-  {&__pyx_kp_u_ndarray_is_not_C_contiguous, __pyx_k_ndarray_is_not_C_contiguous, sizeof(__pyx_k_ndarray_is_not_C_contiguous), 0, 1, 0, 0},
-  {&__pyx_kp_u_ndarray_is_not_Fortran_contiguou, __pyx_k_ndarray_is_not_Fortran_contiguou, sizeof(__pyx_k_ndarray_is_not_Fortran_contiguou), 0, 1, 0, 0},
   {&__pyx_n_s_ndim, __pyx_k_ndim, sizeof(__pyx_k_ndim), 0, 0, 1, 1},
   {&__pyx_n_s_new, __pyx_k_new, sizeof(__pyx_k_new), 0, 0, 1, 1},
   {&__pyx_kp_s_no_default___reduce___due_to_non, __pyx_k_no_default___reduce___due_to_non, sizeof(__pyx_k_no_default___reduce___due_to_non), 0, 0, 1, 0},
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   {&__pyx_kp_s_unable_to_allocate_shape_and_str, __pyx_k_unable_to_allocate_shape_and_str, sizeof(__pyx_k_unable_to_allocate_shape_and_str), 0, 0, 1, 0},
-  {&__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_k_unknown_dtype_code_in_numpy_pxd, sizeof(__pyx_k_unknown_dtype_code_in_numpy_pxd), 0, 1, 0, 0},
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 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
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-  __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 272, __pyx_L1_error)
-  __pyx_builtin_RuntimeError = __Pyx_GetBuiltinName(__pyx_n_s_RuntimeError); if (!__pyx_builtin_RuntimeError) __PYX_ERR(1, 856, __pyx_L1_error)
-  __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(1, 1038, __pyx_L1_error)
+  __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(1, 947, __pyx_L1_error)
+  __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(2, 133, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(2, 148, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(2, 151, __pyx_L1_error)
   __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(2, 2, __pyx_L1_error)
-  __pyx_builtin_Ellipsis = __Pyx_GetBuiltinName(__pyx_n_s_Ellipsis); if (!__pyx_builtin_Ellipsis) __PYX_ERR(2, 400, __pyx_L1_error)
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+  __pyx_builtin_Ellipsis = __Pyx_GetBuiltinName(__pyx_n_s_Ellipsis); if (!__pyx_builtin_Ellipsis) __PYX_ERR(2, 404, __pyx_L1_error)
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  * 
  * cdef inline int import_umath() except -1:
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-  __pyx_tuple__6 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_multiarray_failed_to); if (unlikely(!__pyx_tuple__6)) __PYX_ERR(1, 1038, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__6);
-  __Pyx_GIVEREF(__pyx_tuple__6);
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-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+  /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":953
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-  __pyx_tuple__7 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_umath_failed_to_impor); if (unlikely(!__pyx_tuple__7)) __PYX_ERR(1, 1044, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__7);
-  __Pyx_GIVEREF(__pyx_tuple__7);
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@@ -19832,9 +18669,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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-  __Pyx_GOTREF(__pyx_tuple__8);
-  __Pyx_GIVEREF(__pyx_tuple__8);
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+  __Pyx_GOTREF(__pyx_tuple__3);
+  __Pyx_GIVEREF(__pyx_tuple__3);
 
   /* "View.MemoryView":136
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@@ -19843,9 +18680,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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-  __pyx_tuple__9 = PyTuple_Pack(1, __pyx_kp_s_itemsize_0_for_cython_array); if (unlikely(!__pyx_tuple__9)) __PYX_ERR(2, 136, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__9);
-  __Pyx_GIVEREF(__pyx_tuple__9);
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+  __Pyx_GOTREF(__pyx_tuple__4);
+  __Pyx_GIVEREF(__pyx_tuple__4);
 
   /* "View.MemoryView":148
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@@ -19854,9 +18691,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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-  __Pyx_GOTREF(__pyx_tuple__10);
-  __Pyx_GIVEREF(__pyx_tuple__10);
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+  __Pyx_GOTREF(__pyx_tuple__5);
+  __Pyx_GIVEREF(__pyx_tuple__5);
 
   /* "View.MemoryView":176
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@@ -19865,9 +18702,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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-  __Pyx_GOTREF(__pyx_tuple__11);
-  __Pyx_GIVEREF(__pyx_tuple__11);
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+  __Pyx_GOTREF(__pyx_tuple__6);
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@@ -19876,9 +18713,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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-  __Pyx_GOTREF(__pyx_tuple__12);
-  __Pyx_GIVEREF(__pyx_tuple__12);
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-  __Pyx_GOTREF(__pyx_tuple__13);
-  __Pyx_GIVEREF(__pyx_tuple__13);
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-  __Pyx_GOTREF(__pyx_tuple__14);
-  __Pyx_GIVEREF(__pyx_tuple__14);
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+  __Pyx_GOTREF(__pyx_tuple__9);
+  __Pyx_GIVEREF(__pyx_tuple__9);
 
-  /* "View.MemoryView":414
+  /* "View.MemoryView":418
  *     def __setitem__(memoryview self, object index, object value):
  *         if self.view.readonly:
  *             raise TypeError("Cannot assign to read-only memoryview")             # <<<<<<<<<<<<<<
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-  __pyx_tuple__15 = PyTuple_Pack(1, __pyx_kp_s_Cannot_assign_to_read_only_memor); if (unlikely(!__pyx_tuple__15)) __PYX_ERR(2, 414, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__15);
-  __Pyx_GIVEREF(__pyx_tuple__15);
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+  __Pyx_GIVEREF(__pyx_tuple__10);
 
-  /* "View.MemoryView":491
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-  __Pyx_GOTREF(__pyx_tuple__16);
-  __Pyx_GIVEREF(__pyx_tuple__16);
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-  /* "View.MemoryView":516
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  *     def __getbuffer__(self, Py_buffer *info, int flags):
  *         if flags & PyBUF_WRITABLE and self.view.readonly:
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-  __Pyx_GOTREF(__pyx_tuple__17);
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-  /* "View.MemoryView":566
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-  __Pyx_GOTREF(__pyx_tuple__18);
-  __Pyx_GIVEREF(__pyx_tuple__18);
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-  /* "View.MemoryView":573
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-  __Pyx_GOTREF(__pyx_tuple__19);
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   __Pyx_GIVEREF(__pyx_int_neg_1);
-  PyTuple_SET_ITEM(__pyx_tuple__19, 0, __pyx_int_neg_1);
-  __Pyx_GIVEREF(__pyx_tuple__19);
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   /* "(tree fragment)":2
  * def __reduce_cython__(self):
@@ -19963,40 +18800,40 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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  *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")
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-  __Pyx_GOTREF(__pyx_tuple__20);
-  __Pyx_GIVEREF(__pyx_tuple__20);
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   /* "(tree fragment)":4
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-  __Pyx_GOTREF(__pyx_tuple__21);
-  __Pyx_GIVEREF(__pyx_tuple__21);
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+  __Pyx_GIVEREF(__pyx_tuple__16);
 
-  /* "View.MemoryView":678
+  /* "View.MemoryView":682
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-  __Pyx_GOTREF(__pyx_slice__22);
-  __Pyx_GIVEREF(__pyx_slice__22);
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-  /* "View.MemoryView":699
+  /* "View.MemoryView":703
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-  __Pyx_GOTREF(__pyx_tuple__23);
-  __Pyx_GIVEREF(__pyx_tuple__23);
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+  __Pyx_GOTREF(__pyx_tuple__18);
+  __Pyx_GIVEREF(__pyx_tuple__18);
 
   /* "(tree fragment)":2
  * def __reduce_cython__(self):
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-  __pyx_tuple__24 = PyTuple_Pack(1, __pyx_kp_s_no_default___reduce___due_to_non); if (unlikely(!__pyx_tuple__24)) __PYX_ERR(2, 2, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__24);
-  __Pyx_GIVEREF(__pyx_tuple__24);
+  __pyx_tuple__19 = PyTuple_Pack(1, __pyx_kp_s_no_default___reduce___due_to_non); if (unlikely(!__pyx_tuple__19)) __PYX_ERR(2, 2, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_tuple__19);
+  __Pyx_GIVEREF(__pyx_tuple__19);
 
   /* "(tree fragment)":4
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-  __pyx_tuple__25 = PyTuple_Pack(1, __pyx_kp_s_no_default___reduce___due_to_non); if (unlikely(!__pyx_tuple__25)) __PYX_ERR(2, 4, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__25);
-  __Pyx_GIVEREF(__pyx_tuple__25);
+  __pyx_tuple__20 = PyTuple_Pack(1, __pyx_kp_s_no_default___reduce___due_to_non); if (unlikely(!__pyx_tuple__20)) __PYX_ERR(2, 4, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_tuple__20);
+  __Pyx_GIVEREF(__pyx_tuple__20);
 
   /* "GPy/kern/src/stationary_cython.pyx":19
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@@ -20024,10 +18861,10 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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  *         np.ndarray[DTYPE_t, ndim=2] _X2,
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-  __pyx_tuple__26 = PyTuple_Pack(11, __pyx_n_s_N, __pyx_n_s_D, __pyx_n_s_M, __pyx_n_s_X, __pyx_n_s_X2, __pyx_n_s_tmp, __pyx_n_s_grad, __pyx_n_s_X_2, __pyx_n_s_X2_2, __pyx_n_s_tmp_2, __pyx_n_s_grad_2); if (unlikely(!__pyx_tuple__26)) __PYX_ERR(0, 19, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__26);
-  __Pyx_GIVEREF(__pyx_tuple__26);
-  __pyx_codeobj__27 = (PyObject*)__Pyx_PyCode_New(7, 0, 11, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__26, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_GPy_kern_src_stationary_cython_p, __pyx_n_s_grad_X, 19, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__27)) __PYX_ERR(0, 19, __pyx_L1_error)
+  __pyx_tuple__21 = PyTuple_Pack(11, __pyx_n_s_N, __pyx_n_s_D, __pyx_n_s_M, __pyx_n_s_X, __pyx_n_s_X2, __pyx_n_s_tmp, __pyx_n_s_grad, __pyx_n_s_X_2, __pyx_n_s_X2_2, __pyx_n_s_tmp_2, __pyx_n_s_grad_2); if (unlikely(!__pyx_tuple__21)) __PYX_ERR(0, 19, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_tuple__21);
+  __Pyx_GIVEREF(__pyx_tuple__21);
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   /* "GPy/kern/src/stationary_cython.pyx":32
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@@ -20036,10 +18873,10 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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-  __pyx_tuple__28 = PyTuple_Pack(11, __pyx_n_s_N, __pyx_n_s_D, __pyx_n_s_M, __pyx_n_s_X_2, __pyx_n_s_X2_2, __pyx_n_s_tmp_2, __pyx_n_s_grad_2, __pyx_n_s_n, __pyx_n_s_d, __pyx_n_s_nd, __pyx_n_s_m); if (unlikely(!__pyx_tuple__28)) __PYX_ERR(0, 32, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__28);
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+  __pyx_ptype_5numpy_character = __Pyx_ImportType(__pyx_t_1, "numpy", "character", sizeof(PyObject), __Pyx_ImportType_CheckSize_Warn);
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+  __pyx_ptype_5numpy_ufunc = __Pyx_ImportType(__pyx_t_1, "numpy", "ufunc", sizeof(PyUFuncObject), __Pyx_ImportType_CheckSize_Ignore);
+   if (!__pyx_ptype_5numpy_ufunc) __PYX_ERR(1, 827, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_RefNannyFinishContext();
   return 0;
@@ -20299,17 +19170,19 @@ static int __Pyx_modinit_function_import_code(void) {
 }
 
 
-#if PY_MAJOR_VERSION < 3
-#ifdef CYTHON_NO_PYINIT_EXPORT
-#define __Pyx_PyMODINIT_FUNC void
-#else
+#ifndef CYTHON_NO_PYINIT_EXPORT
 #define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
+#elif PY_MAJOR_VERSION < 3
+#ifdef __cplusplus
+#define __Pyx_PyMODINIT_FUNC extern "C" void
+#else
+#define __Pyx_PyMODINIT_FUNC void
 #endif
 #else
-#ifdef CYTHON_NO_PYINIT_EXPORT
-#define __Pyx_PyMODINIT_FUNC PyObject *
+#ifdef __cplusplus
+#define __Pyx_PyMODINIT_FUNC extern "C" PyObject *
 #else
-#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
+#define __Pyx_PyMODINIT_FUNC PyObject *
 #endif
 #endif
 
@@ -20393,6 +19266,9 @@ static CYTHON_SMALL_CODE int __pyx_pymod_exec_stationary_cython(PyObject *__pyx_
   PyObject *__pyx_t_1 = NULL;
   int __pyx_t_2;
   static PyThread_type_lock __pyx_t_3[8];
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannyDeclarations
   #if CYTHON_PEP489_MULTI_PHASE_INIT
   if (__pyx_m) {
@@ -20460,10 +19336,9 @@ if (!__Pyx_RefNanny) {
   __pyx_d = PyModule_GetDict(__pyx_m); if (unlikely(!__pyx_d)) __PYX_ERR(0, 1, __pyx_L1_error)
   Py_INCREF(__pyx_d);
   __pyx_b = PyImport_AddModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_b)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
-  #if CYTHON_COMPILING_IN_PYPY
   Py_INCREF(__pyx_b);
-  #endif
+  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
+  Py_INCREF(__pyx_cython_runtime);
   if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
   /*--- Initialize various global constants etc. ---*/
   if (__Pyx_InitGlobals() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
@@ -20489,8 +19364,8 @@ if (!__Pyx_RefNanny) {
   (void)__Pyx_modinit_global_init_code();
   (void)__Pyx_modinit_variable_export_code();
   (void)__Pyx_modinit_function_export_code();
-  if (unlikely(__Pyx_modinit_type_init_code() != 0)) goto __pyx_L1_error;
-  if (unlikely(__Pyx_modinit_type_import_code() != 0)) goto __pyx_L1_error;
+  if (unlikely(__Pyx_modinit_type_init_code() < 0)) __PYX_ERR(0, 1, __pyx_L1_error)
+  if (unlikely(__Pyx_modinit_type_import_code() < 0)) __PYX_ERR(0, 1, __pyx_L1_error)
   (void)__Pyx_modinit_variable_import_code();
   (void)__Pyx_modinit_function_import_code();
   /*--- Execution code ---*/
@@ -20597,7 +19472,7 @@ if (!__Pyx_RefNanny) {
  * cdef strided = Enum("<strided and direct>") # default
  * cdef indirect = Enum("<strided and indirect>")
  */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__34, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 286, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__29, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 286, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_XGOTREF(generic);
   __Pyx_DECREF_SET(generic, __pyx_t_1);
@@ -20611,7 +19486,7 @@ if (!__Pyx_RefNanny) {
  * cdef indirect = Enum("<strided and indirect>")
  * 
  */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__35, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 287, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__30, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 287, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_XGOTREF(strided);
   __Pyx_DECREF_SET(strided, __pyx_t_1);
@@ -20625,7 +19500,7 @@ if (!__Pyx_RefNanny) {
  * 
  * 
  */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__36, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 288, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__31, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 288, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_XGOTREF(indirect);
   __Pyx_DECREF_SET(indirect, __pyx_t_1);
@@ -20639,7 +19514,7 @@ if (!__Pyx_RefNanny) {
  * cdef indirect_contiguous = Enum("<contiguous and indirect>")
  * 
  */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__37, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 291, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__32, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 291, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_XGOTREF(contiguous);
   __Pyx_DECREF_SET(contiguous, __pyx_t_1);
@@ -20653,7 +19528,7 @@ if (!__Pyx_RefNanny) {
  * 
  * 
  */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__38, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 292, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__33, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 292, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_XGOTREF(indirect_contiguous);
   __Pyx_DECREF_SET(indirect_contiguous, __pyx_t_1);
@@ -20686,29 +19561,29 @@ if (!__Pyx_RefNanny) {
   __pyx_t_3[7] = PyThread_allocate_lock();
   memcpy(&(__pyx_memoryview_thread_locks[0]), __pyx_t_3, sizeof(__pyx_memoryview_thread_locks[0]) * (8));
 
-  /* "View.MemoryView":545
+  /* "View.MemoryView":549
  *         info.obj = self
  * 
  *     __pyx_getbuffer = capsule(<void *> &__pyx_memoryview_getbuffer, "getbuffer(obj, view, flags)")             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_memoryview_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 545, __pyx_L1_error)
+  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_memoryview_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 549, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem((PyObject *)__pyx_memoryview_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(2, 545, __pyx_L1_error)
+  if (PyDict_SetItem((PyObject *)__pyx_memoryview_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(2, 549, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   PyType_Modified(__pyx_memoryview_type);
 
-  /* "View.MemoryView":991
+  /* "View.MemoryView":995
  *         return self.from_object
  * 
  *     __pyx_getbuffer = capsule(<void *> &__pyx_memoryview_getbuffer, "getbuffer(obj, view, flags)")             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_memoryview_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 991, __pyx_L1_error)
+  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_memoryview_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 995, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem((PyObject *)__pyx_memoryviewslice_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(2, 991, __pyx_L1_error)
+  if (PyDict_SetItem((PyObject *)__pyx_memoryviewslice_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(2, 995, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   PyType_Modified(__pyx_memoryviewslice_type);
 
@@ -20862,7 +19737,7 @@ static int __Pyx_ParseOptionalKeywords(
         }
         name = first_kw_arg;
         #if PY_MAJOR_VERSION < 3
-        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+        if (likely(PyString_Check(key))) {
             while (*name) {
                 if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
                         && _PyString_Eq(**name, key)) {
@@ -20889,7 +19764,7 @@ static int __Pyx_ParseOptionalKeywords(
             while (*name) {
                 int cmp = (**name == key) ? 0 :
                 #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                 #endif
                     PyUnicode_Compare(**name, key);
                 if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -20905,7 +19780,7 @@ static int __Pyx_ParseOptionalKeywords(
                 while (argname != first_kw_arg) {
                     int cmp = (**argname == key) ? 0 :
                     #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                     #endif
                         PyUnicode_Compare(**argname, key);
                     if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -21009,7 +19884,7 @@ static int __Pyx_BufFmt_ParseNumber(const char** ts) {
       return -1;
     } else {
         count = *t++ - '0';
-        while (*t >= '0' && *t < '9') {
+        while (*t >= '0' && *t <= '9') {
             count *= 10;
             count += *t++ - '0';
         }
@@ -21030,6 +19905,7 @@ static void __Pyx_BufFmt_RaiseUnexpectedChar(char ch) {
 }
 static const char* __Pyx_BufFmt_DescribeTypeChar(char ch, int is_complex) {
   switch (ch) {
+    case '?': return "'bool'";
     case 'c': return "'char'";
     case 'b': return "'signed char'";
     case 'B': return "'unsigned char'";
@@ -21072,7 +19948,7 @@ static size_t __Pyx_BufFmt_TypeCharToStandardSize(char ch, int is_complex) {
 }
 static size_t __Pyx_BufFmt_TypeCharToNativeSize(char ch, int is_complex) {
   switch (ch) {
-    case 'c': case 'b': case 'B': case 's': case 'p': return 1;
+    case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
     case 'h': case 'H': return sizeof(short);
     case 'i': case 'I': return sizeof(int);
     case 'l': case 'L': return sizeof(long);
@@ -21156,7 +20032,7 @@ static char __Pyx_BufFmt_TypeCharToGroup(char ch, int is_complex) {
     case 'b': case 'h': case 'i':
     case 'l': case 'q': case 's': case 'p':
         return 'I';
-    case 'B': case 'H': case 'I': case 'L': case 'Q':
+    case '?': case 'B': case 'H': case 'I': case 'L': case 'Q':
         return 'U';
     case 'f': case 'd': case 'g':
         return (is_complex ? 'C' : 'R');
@@ -21300,9 +20176,7 @@ static PyObject *
 __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
 {
     const char *ts = *tsp;
-    int i = 0, number;
-    int ndim = ctx->head->field->type->ndim;
-;
+    int i = 0, number, ndim;
     ++ts;
     if (ctx->new_count != 1) {
         PyErr_SetString(PyExc_ValueError,
@@ -21310,6 +20184,7 @@ __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
         return NULL;
     }
     if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
+    ndim = ctx->head->field->type->ndim;
     while (*ts && *ts != ')') {
         switch (*ts) {
             case ' ': case '\f': case '\r': case '\n': case '\t': case '\v':  continue;
@@ -21435,12 +20310,12 @@ static const char* __Pyx_BufFmt_CheckString(__Pyx_BufFmt_Context* ctx, const cha
           return NULL;
         }
         CYTHON_FALLTHROUGH;
-      case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
+      case '?': case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
       case 'l': case 'L': case 'q': case 'Q':
       case 'f': case 'd': case 'g':
       case 'O': case 'p':
-        if (ctx->enc_type == *ts && got_Z == ctx->is_complex &&
-            ctx->enc_packmode == ctx->new_packmode) {
+        if ((ctx->enc_type == *ts) && (got_Z == ctx->is_complex) &&
+            (ctx->enc_packmode == ctx->new_packmode) && (!ctx->is_valid_array)) {
           ctx->enc_count += ctx->new_count;
           ctx->new_count = 1;
           got_Z = 0;
@@ -21509,7 +20384,7 @@ static int __Pyx__GetBufferAndValidate(
     __Pyx_BufFmt_Init(&ctx, stack, dtype);
     if (!__Pyx_BufFmt_CheckString(&ctx, buf->format)) goto fail;
   }
-  if (unlikely((unsigned)buf->itemsize != dtype->size)) {
+  if (unlikely((size_t)buf->itemsize != dtype->size)) {
     PyErr_Format(PyExc_ValueError,
       "Item size of buffer (%" CYTHON_FORMAT_SSIZE_T "d byte%s) does not match size of '%s' (%" CYTHON_FORMAT_SSIZE_T "d byte%s)",
       buf->itemsize, (buf->itemsize > 1) ? "s" : "",
@@ -21558,11 +20433,7 @@ __Pyx_init_memviewslice(struct __pyx_memoryview_obj *memview,
     int i, retval=-1;
     Py_buffer *buf = &memview->view;
     __Pyx_RefNannySetupContext("init_memviewslice", 0);
-    if (!buf) {
-        PyErr_SetString(PyExc_ValueError,
-            "buf is NULL.");
-        goto fail;
-    } else if (memviewslice->memview || memviewslice->data) {
+    if (unlikely(memviewslice->memview || memviewslice->data)) {
         PyErr_SetString(PyExc_ValueError,
             "memviewslice is already initialized!");
         goto fail;
@@ -21641,13 +20512,13 @@ __Pyx_INC_MEMVIEW(__Pyx_memviewslice *memslice, int have_gil, int lineno)
 {
     int first_time;
     struct __pyx_memoryview_obj *memview = memslice->memview;
-    if (!memview || (PyObject *) memview == Py_None)
+    if (unlikely(!memview || (PyObject *) memview == Py_None))
         return;
-    if (__pyx_get_slice_count(memview) < 0)
+    if (unlikely(__pyx_get_slice_count(memview) < 0))
         __pyx_fatalerror("Acquisition count is %d (line %d)",
                          __pyx_get_slice_count(memview), lineno);
     first_time = __pyx_add_acquisition_count(memview) == 0;
-    if (first_time) {
+    if (unlikely(first_time)) {
         if (have_gil) {
             Py_INCREF((PyObject *) memview);
         } else {
@@ -21661,18 +20532,16 @@ static CYTHON_INLINE void __Pyx_XDEC_MEMVIEW(__Pyx_memviewslice *memslice,
                                              int have_gil, int lineno) {
     int last_time;
     struct __pyx_memoryview_obj *memview = memslice->memview;
-    if (!memview ) {
-        return;
-    } else if ((PyObject *) memview == Py_None) {
+    if (unlikely(!memview || (PyObject *) memview == Py_None)) {
         memslice->memview = NULL;
         return;
     }
-    if (__pyx_get_slice_count(memview) <= 0)
+    if (unlikely(__pyx_get_slice_count(memview) <= 0))
         __pyx_fatalerror("Acquisition count is %d (line %d)",
                          __pyx_get_slice_count(memview), lineno);
     last_time = __pyx_sub_acquisition_count(memview) == 1;
     memslice->data = NULL;
-    if (last_time) {
+    if (unlikely(last_time)) {
         if (have_gil) {
             Py_CLEAR(memslice->memview);
         } else {
@@ -21685,6 +20554,161 @@ static CYTHON_INLINE void __Pyx_XDEC_MEMVIEW(__Pyx_memviewslice *memslice,
     }
 }
 
+/* GetTopmostException */
+  #if CYTHON_USE_EXC_INFO_STACK
+static _PyErr_StackItem *
+__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
+{
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
+           exc_info->previous_item != NULL)
+    {
+        exc_info = exc_info->previous_item;
+    }
+    return exc_info;
+}
+#endif
+
+/* SaveResetException */
+  #if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    *type = exc_info->exc_type;
+    *value = exc_info->exc_value;
+    *tb = exc_info->exc_traceback;
+    #else
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    #endif
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+}
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = type;
+    exc_info->exc_value = value;
+    exc_info->exc_traceback = tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+}
+#endif
+
+/* PyErrExceptionMatches */
+  #if CYTHON_FAST_THREAD_STATE
+static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
+    PyObject *exc_type = tstate->curexc_type;
+    if (exc_type == err) return 1;
+    if (unlikely(!exc_type)) return 0;
+    if (unlikely(PyTuple_Check(err)))
+        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
+    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
+}
+#endif
+
+/* GetException */
+  #if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+#endif
+{
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
+#endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
+#endif
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
+    }
+    #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if CYTHON_USE_EXC_INFO_STACK
+    {
+        _PyErr_StackItem *exc_info = tstate->exc_info;
+        tmp_type = exc_info->exc_type;
+        tmp_value = exc_info->exc_value;
+        tmp_tb = exc_info->exc_traceback;
+        exc_info->exc_type = local_type;
+        exc_info->exc_value = local_value;
+        exc_info->exc_traceback = local_tb;
+    }
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
+
 /* PyObjectCall */
   #if CYTHON_COMPILING_IN_CPYTHON
 static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
@@ -21918,7 +20942,7 @@ static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args
     return result;
 }
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
     PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
     PyObject *globals = PyFunction_GET_GLOBALS(func);
     PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
@@ -21989,12 +21013,12 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
     }
 #if PY_MAJOR_VERSION >= 3
     result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, kwdefs, closure);
 #else
     result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, closure);
 #endif
@@ -22006,6 +21030,35 @@ done:
 #endif
 #endif
 
+/* PyObjectCall2Args */
+  static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2) {
+    PyObject *args, *result = NULL;
+    #if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(function)) {
+        PyObject *args[2] = {arg1, arg2};
+        return __Pyx_PyFunction_FastCall(function, args, 2);
+    }
+    #endif
+    #if CYTHON_FAST_PYCCALL
+    if (__Pyx_PyFastCFunction_Check(function)) {
+        PyObject *args[2] = {arg1, arg2};
+        return __Pyx_PyCFunction_FastCall(function, args, 2);
+    }
+    #endif
+    args = PyTuple_New(2);
+    if (unlikely(!args)) goto done;
+    Py_INCREF(arg1);
+    PyTuple_SET_ITEM(args, 0, arg1);
+    Py_INCREF(arg2);
+    PyTuple_SET_ITEM(args, 1, arg2);
+    Py_INCREF(function);
+    result = __Pyx_PyObject_Call(function, args, NULL);
+    Py_DECREF(args);
+    Py_DECREF(function);
+done:
+    return result;
+}
+
 /* PyObjectCallMethO */
   #if CYTHON_COMPILING_IN_CPYTHON
 static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
@@ -22066,245 +21119,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObjec
 }
 #endif
 
-/* DictGetItem */
-  #if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
-static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key) {
-    PyObject *value;
-    value = PyDict_GetItemWithError(d, key);
-    if (unlikely(!value)) {
-        if (!PyErr_Occurred()) {
-            if (unlikely(PyTuple_Check(key))) {
-                PyObject* args = PyTuple_Pack(1, key);
-                if (likely(args)) {
-                    PyErr_SetObject(PyExc_KeyError, args);
-                    Py_DECREF(args);
-                }
-            } else {
-                PyErr_SetObject(PyExc_KeyError, key);
-            }
-        }
-        return NULL;
-    }
-    Py_INCREF(value);
-    return value;
-}
-#endif
-
-/* RaiseTooManyValuesToUnpack */
-  static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
-    PyErr_Format(PyExc_ValueError,
-                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
-}
-
-/* RaiseNeedMoreValuesToUnpack */
-  static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
-    PyErr_Format(PyExc_ValueError,
-                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
-                 index, (index == 1) ? "" : "s");
-}
-
-/* RaiseNoneIterError */
-  static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
-}
-
-/* ExtTypeTest */
-  static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
-    }
-    if (likely(__Pyx_TypeCheck(obj, type)))
-        return 1;
-    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
-                 Py_TYPE(obj)->tp_name, type->tp_name);
-    return 0;
-}
-
-/* GetTopmostException */
-  #if CYTHON_USE_EXC_INFO_STACK
-static _PyErr_StackItem *
-__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
-{
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
-           exc_info->previous_item != NULL)
-    {
-        exc_info = exc_info->previous_item;
-    }
-    return exc_info;
-}
-#endif
-
-/* SaveResetException */
-  #if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
-    *type = exc_info->exc_type;
-    *value = exc_info->exc_value;
-    *tb = exc_info->exc_traceback;
-    #else
-    *type = tstate->exc_type;
-    *value = tstate->exc_value;
-    *tb = tstate->exc_traceback;
-    #endif
-    Py_XINCREF(*type);
-    Py_XINCREF(*value);
-    Py_XINCREF(*tb);
-}
-static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    tmp_type = exc_info->exc_type;
-    tmp_value = exc_info->exc_value;
-    tmp_tb = exc_info->exc_traceback;
-    exc_info->exc_type = type;
-    exc_info->exc_value = value;
-    exc_info->exc_traceback = tb;
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = type;
-    tstate->exc_value = value;
-    tstate->exc_traceback = tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-}
-#endif
-
-/* PyErrExceptionMatches */
-  #if CYTHON_FAST_THREAD_STATE
-static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    n = PyTuple_GET_SIZE(tuple);
-#if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
-    }
-#endif
-    for (i=0; i<n; i++) {
-        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
-    }
-    return 0;
-}
-static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
-    PyObject *exc_type = tstate->curexc_type;
-    if (exc_type == err) return 1;
-    if (unlikely(!exc_type)) return 0;
-    if (unlikely(PyTuple_Check(err)))
-        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
-    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
-}
-#endif
-
-/* GetException */
-  #if CYTHON_FAST_THREAD_STATE
-static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
-#else
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
-#endif
-{
-    PyObject *local_type, *local_value, *local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    local_type = tstate->curexc_type;
-    local_value = tstate->curexc_value;
-    local_tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-#else
-    PyErr_Fetch(&local_type, &local_value, &local_tb);
-#endif
-    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-#if CYTHON_FAST_THREAD_STATE
-    if (unlikely(tstate->curexc_type))
-#else
-    if (unlikely(PyErr_Occurred()))
-#endif
-        goto bad;
-    #if PY_MAJOR_VERSION >= 3
-    if (local_tb) {
-        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
-            goto bad;
-    }
-    #endif
-    Py_XINCREF(local_tb);
-    Py_XINCREF(local_type);
-    Py_XINCREF(local_value);
-    *type = local_type;
-    *value = local_value;
-    *tb = local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    #if CYTHON_USE_EXC_INFO_STACK
-    {
-        _PyErr_StackItem *exc_info = tstate->exc_info;
-        tmp_type = exc_info->exc_type;
-        tmp_value = exc_info->exc_value;
-        tmp_tb = exc_info->exc_traceback;
-        exc_info->exc_type = local_type;
-        exc_info->exc_value = local_value;
-        exc_info->exc_traceback = local_tb;
-    }
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = local_type;
-    tstate->exc_value = local_value;
-    tstate->exc_traceback = local_tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-#else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
-#endif
-    return 0;
-bad:
-    *type = 0;
-    *value = 0;
-    *tb = 0;
-    Py_XDECREF(local_type);
-    Py_XDECREF(local_value);
-    Py_XDECREF(local_tb);
-    return -1;
-}
-
-/* PyObjectCall2Args */
-  static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2) {
-    PyObject *args, *result = NULL;
-    #if CYTHON_FAST_PYCALL
-    if (PyFunction_Check(function)) {
-        PyObject *args[2] = {arg1, arg2};
-        return __Pyx_PyFunction_FastCall(function, args, 2);
-    }
-    #endif
-    #if CYTHON_FAST_PYCCALL
-    if (__Pyx_PyFastCFunction_Check(function)) {
-        PyObject *args[2] = {arg1, arg2};
-        return __Pyx_PyCFunction_FastCall(function, args, 2);
-    }
-    #endif
-    args = PyTuple_New(2);
-    if (unlikely(!args)) goto done;
-    Py_INCREF(arg1);
-    PyTuple_SET_ITEM(args, 0, arg1);
-    Py_INCREF(arg2);
-    PyTuple_SET_ITEM(args, 1, arg2);
-    Py_INCREF(function);
-    result = __Pyx_PyObject_Call(function, args, NULL);
-    Py_DECREF(args);
-    Py_DECREF(function);
-done:
-    return result;
-}
-
 /* BytesEquals */
   static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
 #if CYTHON_COMPILING_IN_PYPY
@@ -22613,9 +21427,9 @@ static PyObject *__Pyx_PyObject_GetItem(PyObject *obj, PyObject* key) {
         if (stop < 0)
             stop += length;
     }
+    if (unlikely(stop <= start))
+        return __Pyx_NewRef(__pyx_empty_unicode);
     length = stop - start;
-    if (unlikely(length <= 0))
-        return PyUnicode_FromUnicode(NULL, 0);
     cstring += start;
     if (decode_func) {
         return decode_func(cstring, length, errors);
@@ -22639,6 +21453,32 @@ static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *o, PyObject *n, PyObject
     return (likely(r)) ? r : __Pyx_GetAttr3Default(d);
 }
 
+/* PyDictVersioning */
+  #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
+    PyObject **dictptr = NULL;
+    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
+    if (offset) {
+#if CYTHON_COMPILING_IN_CPYTHON
+        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
+#else
+        dictptr = _PyObject_GetDictPtr(obj);
+#endif
+    }
+    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
+}
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
+        return 0;
+    return obj_dict_version == __Pyx_get_object_dict_version(obj);
+}
+#endif
+
 /* GetModuleGlobalName */
   #if CYTHON_USE_DICT_VERSIONS
 static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
@@ -22674,6 +21514,37 @@ static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
     return __Pyx_GetBuiltinName(name);
 }
 
+/* RaiseTooManyValuesToUnpack */
+  static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+/* RaiseNeedMoreValuesToUnpack */
+  static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+/* RaiseNoneIterError */
+  static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
+}
+
+/* ExtTypeTest */
+  static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
+    }
+    if (likely(__Pyx_TypeCheck(obj, type)))
+        return 1;
+    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
+                 Py_TYPE(obj)->tp_name, type->tp_name);
+    return 0;
+}
+
 /* SwapException */
   #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
@@ -22739,7 +21610,7 @@ static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value,
     {
         #if PY_MAJOR_VERSION >= 3
         if (level == -1) {
-            if (strchr(__Pyx_MODULE_NAME, '.')) {
+            if ((1) && (strchr(__Pyx_MODULE_NAME, '.'))) {
                 module = PyImport_ImportModuleLevelObject(
                     name, global_dict, empty_dict, list, 1);
                 if (!module) {
@@ -22876,7 +21747,9 @@ static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObj
 
 /* PyIntBinop */
   #if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, CYTHON_UNUSED long intval, CYTHON_UNUSED int inplace) {
+static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, CYTHON_UNUSED long intval, int inplace, int zerodivision_check) {
+    (void)inplace;
+    (void)zerodivision_check;
     #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_CheckExact(op1))) {
         const long b = intval;
@@ -23009,48 +21882,6 @@ static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, CYTHON_UNUSED
     return q;
 }
 
-/* WriteUnraisableException */
-  static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
-                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename,
-                                  int full_traceback, CYTHON_UNUSED int nogil) {
-    PyObject *old_exc, *old_val, *old_tb;
-    PyObject *ctx;
-    __Pyx_PyThreadState_declare
-#ifdef WITH_THREAD
-    PyGILState_STATE state;
-    if (nogil)
-        state = PyGILState_Ensure();
-#ifdef _MSC_VER
-    else state = (PyGILState_STATE)-1;
-#endif
-#endif
-    __Pyx_PyThreadState_assign
-    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
-    if (full_traceback) {
-        Py_XINCREF(old_exc);
-        Py_XINCREF(old_val);
-        Py_XINCREF(old_tb);
-        __Pyx_ErrRestore(old_exc, old_val, old_tb);
-        PyErr_PrintEx(1);
-    }
-    #if PY_MAJOR_VERSION < 3
-    ctx = PyString_FromString(name);
-    #else
-    ctx = PyUnicode_FromString(name);
-    #endif
-    __Pyx_ErrRestore(old_exc, old_val, old_tb);
-    if (!ctx) {
-        PyErr_WriteUnraisable(Py_None);
-    } else {
-        PyErr_WriteUnraisable(ctx);
-        Py_DECREF(ctx);
-    }
-#ifdef WITH_THREAD
-    if (nogil)
-        PyGILState_Release(state);
-#endif
-}
-
 /* ImportFrom */
   static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
     PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);
@@ -23151,6 +21982,28 @@ bad:
     return -1;
 }
 
+/* PyObjectGetAttrStrNoError */
+  static void __Pyx_PyObject_GetAttrStr_ClearAttributeError(void) {
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    if (likely(__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
+        __Pyx_PyErr_Clear();
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_TYPE_SLOTS && PY_VERSION_HEX >= 0x030700B1
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro == PyObject_GenericGetAttr)) {
+        return _PyObject_GenericGetAttrWithDict(obj, attr_name, NULL, 1);
+    }
+#endif
+    result = __Pyx_PyObject_GetAttrStr(obj, attr_name);
+    if (unlikely(!result)) {
+        __Pyx_PyObject_GetAttrStr_ClearAttributeError();
+    }
+    return result;
+}
+
 /* SetupReduce */
   static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
   int ret;
@@ -23178,43 +22031,51 @@ static int __Pyx_setup_reduce(PyObject* type_obj) {
     PyObject *setstate = NULL;
     PyObject *setstate_cython = NULL;
 #if CYTHON_USE_PYTYPE_LOOKUP
-    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto GOOD;
+    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
 #else
-    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto GOOD;
+    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
 #endif
 #if CYTHON_USE_PYTYPE_LOOKUP
-    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
+    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
 #else
-    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
+    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
 #endif
-    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto BAD;
+    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto __PYX_BAD;
     if (reduce_ex == object_reduce_ex) {
 #if CYTHON_USE_PYTYPE_LOOKUP
-        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
+        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
 #else
-        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
+        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
 #endif
-        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto BAD;
+        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto __PYX_BAD;
         if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
-            reduce_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_cython); if (unlikely(!reduce_cython)) goto BAD;
-            ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto BAD;
-            ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto BAD;
+            reduce_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_reduce_cython);
+            if (likely(reduce_cython)) {
+                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+            } else if (reduce == object_reduce || PyErr_Occurred()) {
+                goto __PYX_BAD;
+            }
             setstate = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate);
             if (!setstate) PyErr_Clear();
             if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
-                setstate_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate_cython); if (unlikely(!setstate_cython)) goto BAD;
-                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto BAD;
-                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto BAD;
+                setstate_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate_cython);
+                if (likely(setstate_cython)) {
+                    ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                    ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                } else if (!setstate || PyErr_Occurred()) {
+                    goto __PYX_BAD;
+                }
             }
             PyType_Modified((PyTypeObject*)type_obj);
         }
     }
-    goto GOOD;
-BAD:
+    goto __PYX_GOOD;
+__PYX_BAD:
     if (!PyErr_Occurred())
         PyErr_Format(PyExc_RuntimeError, "Unable to initialize pickling for %s", ((PyTypeObject*)type_obj)->tp_name);
     ret = -1;
-GOOD:
+__PYX_GOOD:
 #if !CYTHON_USE_PYTYPE_LOOKUP
     Py_XDECREF(object_reduce);
     Py_XDECREF(object_reduce_ex);
@@ -23290,7 +22151,7 @@ bad:
 
 /* CLineInTraceback */
   #ifndef CYTHON_CLINE_IN_TRACEBACK
-static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
+static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int c_line) {
     PyObject *use_cline;
     PyObject *ptype, *pvalue, *ptraceback;
 #if CYTHON_COMPILING_IN_CPYTHON
@@ -23394,7 +22255,7 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
     if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
         int new_max = __pyx_code_cache.max_count + 64;
         entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
-            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+            __pyx_code_cache.entries, ((size_t)new_max) * sizeof(__Pyx_CodeObjectCacheEntry));
         if (unlikely(!entries)) {
             return;
         }
@@ -23498,7 +22359,6 @@ bad:
 #if PY_MAJOR_VERSION < 3
 static int __Pyx_GetBuffer(PyObject *obj, Py_buffer *view, int flags) {
     if (PyObject_CheckBuffer(obj)) return PyObject_GetBuffer(obj, view, flags);
-        if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) return __pyx_pw_5numpy_7ndarray_1__getbuffer__(obj, view, flags);
         if (__Pyx_TypeCheck(obj, __pyx_array_type)) return __pyx_array_getbuffer(obj, view, flags);
         if (__Pyx_TypeCheck(obj, __pyx_memoryview_type)) return __pyx_memoryview_getbuffer(obj, view, flags);
     PyErr_Format(PyExc_TypeError, "'%.200s' does not have the buffer interface", Py_TYPE(obj)->tp_name);
@@ -23512,7 +22372,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
         return;
     }
     if ((0)) {}
-        else if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) __pyx_pw_5numpy_7ndarray_3__releasebuffer__(obj, view);
     view->obj = NULL;
     Py_DECREF(obj);
 }
@@ -23662,13 +22521,13 @@ __pyx_check_strides(Py_buffer *buf, int dim, int ndim, int spec)
     if (buf->strides) {
         if (spec & __Pyx_MEMVIEW_CONTIG) {
             if (spec & (__Pyx_MEMVIEW_PTR|__Pyx_MEMVIEW_FULL)) {
-                if (buf->strides[dim] != sizeof(void *)) {
+                if (unlikely(buf->strides[dim] != sizeof(void *))) {
                     PyErr_Format(PyExc_ValueError,
                                  "Buffer is not indirectly contiguous "
                                  "in dimension %d.", dim);
                     goto fail;
                 }
-            } else if (buf->strides[dim] != buf->itemsize) {
+            } else if (unlikely(buf->strides[dim] != buf->itemsize)) {
                 PyErr_SetString(PyExc_ValueError,
                                 "Buffer and memoryview are not contiguous "
                                 "in the same dimension.");
@@ -23679,7 +22538,7 @@ __pyx_check_strides(Py_buffer *buf, int dim, int ndim, int spec)
             Py_ssize_t stride = buf->strides[dim];
             if (stride < 0)
                 stride = -stride;
-            if (stride < buf->itemsize) {
+            if (unlikely(stride < buf->itemsize)) {
                 PyErr_SetString(PyExc_ValueError,
                                 "Buffer and memoryview are not contiguous "
                                 "in the same dimension.");
@@ -23687,17 +22546,17 @@ __pyx_check_strides(Py_buffer *buf, int dim, int ndim, int spec)
             }
         }
     } else {
-        if (spec & __Pyx_MEMVIEW_CONTIG && dim != ndim - 1) {
+        if (unlikely(spec & __Pyx_MEMVIEW_CONTIG && dim != ndim - 1)) {
             PyErr_Format(PyExc_ValueError,
                          "C-contiguous buffer is not contiguous in "
                          "dimension %d", dim);
             goto fail;
-        } else if (spec & (__Pyx_MEMVIEW_PTR)) {
+        } else if (unlikely(spec & (__Pyx_MEMVIEW_PTR))) {
             PyErr_Format(PyExc_ValueError,
                          "C-contiguous buffer is not indirect in "
                          "dimension %d", dim);
             goto fail;
-        } else if (buf->suboffsets) {
+        } else if (unlikely(buf->suboffsets)) {
             PyErr_SetString(PyExc_ValueError,
                             "Buffer exposes suboffsets but no strides");
             goto fail;
@@ -23711,7 +22570,7 @@ static int
 __pyx_check_suboffsets(Py_buffer *buf, int dim, CYTHON_UNUSED int ndim, int spec)
 {
     if (spec & __Pyx_MEMVIEW_DIRECT) {
-        if (buf->suboffsets && buf->suboffsets[dim] >= 0) {
+        if (unlikely(buf->suboffsets && buf->suboffsets[dim] >= 0)) {
             PyErr_Format(PyExc_ValueError,
                          "Buffer not compatible with direct access "
                          "in dimension %d.", dim);
@@ -23719,7 +22578,7 @@ __pyx_check_suboffsets(Py_buffer *buf, int dim, CYTHON_UNUSED int ndim, int spec
         }
     }
     if (spec & __Pyx_MEMVIEW_PTR) {
-        if (!buf->suboffsets || (buf->suboffsets && buf->suboffsets[dim] < 0)) {
+        if (unlikely(!buf->suboffsets || (buf->suboffsets[dim] < 0))) {
             PyErr_Format(PyExc_ValueError,
                          "Buffer is not indirectly accessible "
                          "in dimension %d.", dim);
@@ -23737,9 +22596,7 @@ __pyx_verify_contig(Py_buffer *buf, int ndim, int c_or_f_flag)
     if (c_or_f_flag & __Pyx_IS_F_CONTIG) {
         Py_ssize_t stride = 1;
         for (i = 0; i < ndim; i++) {
-            if (stride * buf->itemsize != buf->strides[i] &&
-                    buf->shape[i] > 1)
-            {
+            if (unlikely(stride * buf->itemsize != buf->strides[i]  &&  buf->shape[i] > 1)) {
                 PyErr_SetString(PyExc_ValueError,
                     "Buffer not fortran contiguous.");
                 goto fail;
@@ -23749,8 +22606,7 @@ __pyx_verify_contig(Py_buffer *buf, int ndim, int c_or_f_flag)
     } else if (c_or_f_flag & __Pyx_IS_C_CONTIG) {
         Py_ssize_t stride = 1;
         for (i = ndim - 1; i >- 1; i--) {
-            if (stride * buf->itemsize != buf->strides[i] &&
-                    buf->shape[i] > 1) {
+            if (unlikely(stride * buf->itemsize != buf->strides[i]  &&  buf->shape[i] > 1)) {
                 PyErr_SetString(PyExc_ValueError,
                     "Buffer not C contiguous.");
                 goto fail;
@@ -23791,7 +22647,7 @@ static int __Pyx_ValidateAndInit_memviewslice(
             goto fail;
     }
     buf = &memview->view;
-    if (buf->ndim != ndim) {
+    if (unlikely(buf->ndim != ndim)) {
         PyErr_Format(PyExc_ValueError,
                 "Buffer has wrong number of dimensions (expected %d, got %d)",
                 ndim, buf->ndim);
@@ -23799,9 +22655,9 @@ static int __Pyx_ValidateAndInit_memviewslice(
     }
     if (new_memview) {
         __Pyx_BufFmt_Init(&ctx, stack, dtype);
-        if (!__Pyx_BufFmt_CheckString(&ctx, buf->format)) goto fail;
+        if (unlikely(!__Pyx_BufFmt_CheckString(&ctx, buf->format))) goto fail;
     }
-    if ((unsigned) buf->itemsize != dtype->size) {
+    if (unlikely((unsigned) buf->itemsize != dtype->size)) {
         PyErr_Format(PyExc_ValueError,
                      "Item size of buffer (%" CYTHON_FORMAT_SSIZE_T "u byte%s) "
                      "does not match size of '%s' (%" CYTHON_FORMAT_SSIZE_T "u byte%s)",
@@ -23812,15 +22668,17 @@ static int __Pyx_ValidateAndInit_memviewslice(
                      (dtype->size > 1) ? "s" : "");
         goto fail;
     }
-    for (i = 0; i < ndim; i++) {
-        spec = axes_specs[i];
-        if (!__pyx_check_strides(buf, i, ndim, spec))
-            goto fail;
-        if (!__pyx_check_suboffsets(buf, i, ndim, spec))
+    if (buf->len > 0) {
+        for (i = 0; i < ndim; i++) {
+            spec = axes_specs[i];
+            if (unlikely(!__pyx_check_strides(buf, i, ndim, spec)))
+                goto fail;
+            if (unlikely(!__pyx_check_suboffsets(buf, i, ndim, spec)))
+                goto fail;
+        }
+        if (unlikely(buf->strides && !__pyx_verify_contig(buf, ndim, c_or_f_flag)))
             goto fail;
     }
-    if (buf->strides && !__pyx_verify_contig(buf, ndim, c_or_f_flag))
-        goto fail;
     if (unlikely(__Pyx_init_memviewslice(memview, ndim, memviewslice,
                                          new_memview != NULL) == -1)) {
         goto fail;
@@ -23965,13 +22823,13 @@ __pyx_fail:
                 return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 float r = b.imag / b.real;
-                float s = 1.0 / (b.real + b.imag * r);
+                float s = (float)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_float_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             float r = b.real / b.imag;
-            float s = 1.0 / (b.imag + b.real * r);
+            float s = (float)(1.0) / (b.imag + b.real * r);
             return __pyx_t_float_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -24029,7 +22887,6 @@ __pyx_fail:
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_float(a, a);
                         return __Pyx_c_prod_float(a, a);
                     case 3:
                         z = __Pyx_c_prod_float(a, a);
@@ -24051,7 +22908,7 @@ __pyx_fail:
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2f(0, -1);
+                    theta = atan2f(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_float(a);
@@ -24120,13 +22977,13 @@ __pyx_fail:
                 return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 double r = b.imag / b.real;
-                double s = 1.0 / (b.real + b.imag * r);
+                double s = (double)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_double_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             double r = b.real / b.imag;
-            double s = 1.0 / (b.imag + b.real * r);
+            double s = (double)(1.0) / (b.imag + b.real * r);
             return __pyx_t_double_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -24184,7 +23041,6 @@ __pyx_fail:
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_double(a, a);
                         return __Pyx_c_prod_double(a, a);
                     case 3:
                         z = __Pyx_c_prod_double(a, a);
@@ -24206,7 +23062,7 @@ __pyx_fail:
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2(0, -1);
+                    theta = atan2(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_double(a);
@@ -24222,37 +23078,6 @@ __pyx_fail:
     #endif
 #endif
 
-/* CIntToPy */
-  static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value) {
-    const enum NPY_TYPES neg_one = (enum NPY_TYPES) ((enum NPY_TYPES) 0 - (enum NPY_TYPES) 1), const_zero = (enum NPY_TYPES) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(enum NPY_TYPES) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(enum NPY_TYPES) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(enum NPY_TYPES),
-                                     little, !is_unsigned);
-    }
-}
-
 /* MemviewSliceCopyTemplate */
   static __Pyx_memviewslice
 __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
@@ -24271,7 +23096,7 @@ __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
     struct __pyx_memoryview_obj *memview_obj = NULL;
     __Pyx_RefNannySetupContext("__pyx_memoryview_copy_new_contig", 0);
     for (i = 0; i < ndim; i++) {
-        if (from_mvs->suboffsets[i] >= 0) {
+        if (unlikely(from_mvs->suboffsets[i] >= 0)) {
             PyErr_Format(PyExc_ValueError, "Cannot copy memoryview slice with "
                                            "indirect dimensions (axis %d)", i);
             goto fail;
diff --git a/GPy/likelihoods/__init__.py b/GPy/likelihoods/__init__.py
index 7ec8092b..49cc5088 100644
--- a/GPy/likelihoods/__init__.py
+++ b/GPy/likelihoods/__init__.py
@@ -1,3 +1,27 @@
+"""Introduction
+^^^^^^^^^^^^
+
+The likelihood is :math:`p(y|f,X)` which is how well we will predict
+target values given inputs :math:`X` and our latent function :math:`f`
+(:math:`y` without noise). Marginal likelihood :math:`p(y|X)`, is the
+same as likelihood except we marginalize out the model :math:`f`. The
+importance of likelihoods in Gaussian Processes is in determining the
+'best' values of kernel and noise hyperparamters to relate known,
+observed and unobserved data. The purpose of optimizing a model
+(e.g. :py:class:`GPy.models.GPRegression`) is to determine the 'best'
+hyperparameters i.e. those that minimize negative log marginal
+likelihood.
+
+.. inheritance-diagram:: GPy.likelihoods.likelihood GPy.likelihoods.mixed_noise.MixedNoise
+   :top-classes: GPy.core.parameterization.parameterized.Parameterized
+
+Most likelihood classes inherit directly from
+:py:class:`GPy.likelihoods.likelihood`, although an intermediary class
+:py:class:`GPy.likelihoods.mixed_noise.MixedNoise` is used by
+:py:class:`GPy.likelihoods.multioutput_likelihood`.
+
+"""
+
 from .bernoulli import Bernoulli
 from .exponential import Exponential
 from .gaussian import Gaussian, HeteroscedasticGaussian
@@ -9,4 +33,4 @@ from .mixed_noise import MixedNoise
 from .binomial import Binomial
 from .weibull import Weibull
 from .loglogistic import LogLogistic
-from .multioutput_likelihood import MultioutputLikelihood
\ No newline at end of file
+from .multioutput_likelihood import MultioutputLikelihood
diff --git a/GPy/likelihoods/likelihood.py b/GPy/likelihoods/likelihood.py
index bd84b72c..0f17a883 100644
--- a/GPy/likelihoods/likelihood.py
+++ b/GPy/likelihoods/likelihood.py
@@ -218,7 +218,7 @@ class Likelihood(Parameterized):
         #fi_samples = np.random.randn(num_samples)*np.sqrt(var_star) + mu_star
         fi_samples = np.random.normal(mu_star, np.sqrt(var_star), size=(mu_star.shape[0], num_samples))
 
-        from scipy.misc import logsumexp
+        from scipy.special import logsumexp
         log_p_ystar = -np.log(num_samples) + logsumexp(self.logpdf(fi_samples, y_test, Y_metadata=Y_metadata), axis=1)
         log_p_ystar = np.array(log_p_ystar).reshape(*y_test.shape)
         return log_p_ystar
diff --git a/GPy/mappings/compound.py b/GPy/mappings/compound.py
index 5a1e8dd1..9078910f 100644
--- a/GPy/mappings/compound.py
+++ b/GPy/mappings/compound.py
@@ -21,7 +21,7 @@ class Compound(Mapping):
     def __init__(self, mapping1, mapping2):
         assert(mapping1.output_dim==mapping2.input_dim)
         input_dim, output_dim = mapping1.input_dim, mapping2.output_dim
-        Mapping.__init__(self, input_dim=input_dim, output_dim=output_dim)
+        super(Compound, self).__init__(input_dim=input_dim, output_dim=output_dim)
         self.mapping1 = mapping1
         self.mapping2 = mapping2
         self.link_parameters(self.mapping1, self.mapping2)
diff --git a/GPy/mappings/constant.py b/GPy/mappings/constant.py
index 315b47b7..281d72d2 100644
--- a/GPy/mappings/constant.py
+++ b/GPy/mappings/constant.py
@@ -21,7 +21,7 @@ class Constant(Mapping):
     """
 
     def __init__(self, input_dim, output_dim, value=0., name='constmap'):
-        Mapping.__init__(self, input_dim=input_dim, output_dim=output_dim, name=name)
+        super(Constant, self).__init__(input_dim=input_dim, output_dim=output_dim, name=name)
         value = np.atleast_1d(value)
         if not len(value.shape) ==1:
             raise ValueError("bad constant values: pass a float or flat vectoor")
diff --git a/GPy/mappings/identity.py b/GPy/mappings/identity.py
index 3567b694..3a5a2ac5 100644
--- a/GPy/mappings/identity.py
+++ b/GPy/mappings/identity.py
@@ -8,7 +8,7 @@ class Identity(Mapping):
     A mapping that does nothing!
     """
     def __init__(self, input_dim, output_dim, name='identity'):
-        Mapping.__init__(self, input_dim, output_dim, name)
+        super(Identity, self).__init__(input_dim, output_dim, name)
 
     def f(self, X):
         return X
diff --git a/GPy/mappings/kernel.py b/GPy/mappings/kernel.py
index ea1720db..18b77126 100644
--- a/GPy/mappings/kernel.py
+++ b/GPy/mappings/kernel.py
@@ -33,7 +33,7 @@ class Kernel(Mapping):
     """
 
     def __init__(self, input_dim, output_dim, Z, kernel, name='kernmap'):
-        Mapping.__init__(self, input_dim=input_dim, output_dim=output_dim, name=name)
+        super(Kernel, self).__init__(input_dim=input_dim, output_dim=output_dim, name=name)
         self.kern = kernel
         self.Z = Z
         self.num_bases, Zdim = Z.shape
diff --git a/GPy/mappings/piecewise_linear.py b/GPy/mappings/piecewise_linear.py
index 8bdee81e..37ec65fb 100644
--- a/GPy/mappings/piecewise_linear.py
+++ b/GPy/mappings/piecewise_linear.py
@@ -15,7 +15,7 @@ class PiecewiseLinear(Mapping):
         assert input_dim==1
         assert output_dim==1
 
-        Mapping.__init__(self, input_dim, output_dim, name)
+        super(PiecewiseLinear, self).__init__(input_dim, output_dim, name)
 
         values, breaks = np.array(values).flatten(), np.array(breaks).flatten()
         assert values.size == breaks.size
diff --git a/GPy/models/__init__.py b/GPy/models/__init__.py
index 3e788927..6669b357 100644
--- a/GPy/models/__init__.py
+++ b/GPy/models/__init__.py
@@ -1,6 +1,29 @@
 # Copyright (c) 2012, GPy authors (see AUTHORS.txt).
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
 
+"""
+Introduction
+^^^^^^^^^^^^
+
+This package principally contains classes ultimately inherited from :py:class:`GPy.core.gp.GP` intended as models for end user consuption - much of :py:class:`GPy.core.gp.GP` is not intended to be called directly. The general form of a "model" is a function that takes some data, a kernel (see :py:class:`GPy.kern`) and other parameters, returning an object representation.
+
+Several models directly inherit :py:class:`GPy.core.gp.GP`:
+
+.. inheritance-diagram:: GPy.models.gp_classification GPy.models.gp_coregionalized_regression GPy.models.gp_heteroscedastic_regression GPy.models.gp_offset_regression GPy.models.gp_regression GPy.models.gp_var_gauss GPy.models.gplvm GPy.models.input_warped_gp GPy.models.multioutput_gp
+    :top-classes: GPy.core.gp.GP
+
+Some models fall into conceptually related groups of models (e.g. :py:class:`GPy.core.sparse_gp`, :py:class:`GPy.core.sparse_gp_mpi`):
+
+.. inheritance-diagram:: GPy.models.bayesian_gplvm GPy.models.bayesian_gplvm_minibatch GPy.models.gp_multiout_regression GPy.models.gp_multiout_regression_md GPy.models.ibp_lfm.IBPLFM GPy.models.sparse_gp_coregionalized_regression GPy.models.sparse_gp_minibatch GPy.models.sparse_gp_regression GPy.models.sparse_gp_regression_md GPy.models.sparse_gplvm
+    :top-classes: GPy.core.gp.GP
+
+In some cases one end-user model inherits another e.g.
+
+.. inheritance-diagram:: GPy.models.bayesian_gplvm_minibatch
+    :top-classes: GPy.models.sparse_gp_minibatch.SparseGPMiniBatch
+
+"""
+
 from .gp_regression import GPRegression
 from .gp_classification import GPClassification
 from .sparse_gp_regression import SparseGPRegression
diff --git a/GPy/models/bcgplvm.py b/GPy/models/bcgplvm.py
index 7462fa27..c2baf2b5 100644
--- a/GPy/models/bcgplvm.py
+++ b/GPy/models/bcgplvm.py
@@ -30,7 +30,7 @@ class BCGPLVM(GPLVM):
         else:
             assert mapping.input_dim==Y.shape[1], "mapping input dim does not work for Y dimension"
             assert mapping.output_dim==input_dim, "mapping output dim does not work for self.input_dim"
-        GPLVM.__init__(self, Y, input_dim, X=mapping.f(Y), kernel=kernel, name="bcgplvm")
+        super(BCGPLVM, self).__init__(Y, input_dim, X=mapping.f(Y), kernel=kernel, name="bcgplvm")
         self.unlink_parameter(self.X)
         self.mapping = mapping
         self.link_parameter(self.mapping)
diff --git a/GPy/models/dpgplvm.py b/GPy/models/dpgplvm.py
index b4b1bbef..9c6a36fc 100644
--- a/GPy/models/dpgplvm.py
+++ b/GPy/models/dpgplvm.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2015 the GPy Austhors (see AUTHORS.txt)
+# Copyright (c) 2015 the GPy Authors (see AUTHORS.txt)
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
 
 from .bayesian_gplvm import BayesianGPLVM
@@ -11,6 +11,11 @@ class DPBayesianGPLVM(BayesianGPLVM):
                  Z=None, kernel=None, inference_method=None, likelihood=None,
                  name='bayesian gplvm', mpi_comm=None, normalizer=None,
                  missing_data=False, stochastic=False, batchsize=1):
-        super(DPBayesianGPLVM,self).__init__(Y=Y, input_dim=input_dim, X=X, X_variance=X_variance, init=init, 					num_inducing=num_inducing, Z=Z, kernel=kernel, inference_method=inference_method, likelihood=likelihood, mpi_comm=mpi_comm, normalizer=normalizer, missing_data=missing_data, stochastic=stochastic, batchsize=batchsize, name='dp bayesian gplvm')
+        super(DPBayesianGPLVM,self).__init__(Y=Y, input_dim=input_dim, X=X, X_variance=X_variance,
+                                             init=init, num_inducing=num_inducing, Z=Z, kernel=kernel,
+                                             inference_method=inference_method, likelihood=likelihood,
+                                             mpi_comm=mpi_comm, normalizer=normalizer,
+                                             missing_data=missing_data, stochastic=stochastic,
+                                             batchsize=batchsize, name='dp bayesian gplvm')
         self.X.mean.set_prior(X_prior)
         self.link_parameter(X_prior)
diff --git a/GPy/models/gp_classification.py b/GPy/models/gp_classification.py
index 8a68e74d..8bd01a28 100644
--- a/GPy/models/gp_classification.py
+++ b/GPy/models/gp_classification.py
@@ -35,8 +35,8 @@ class GPClassification(GP):
         if inference_method is None:
             inference_method = EP()
 
-        GP.__init__(self, X=X, Y=Y,  kernel=kernel, likelihood=likelihood, inference_method=inference_method,
-                    mean_function=mean_function, name='gp_classification', normalizer=normalizer)
+        super(GPClassification, self).__init__(X=X, Y=Y,  kernel=kernel, likelihood=likelihood, inference_method=inference_method,
+                                               mean_function=mean_function, name='gp_classification', normalizer=normalizer)
 
     @staticmethod
     def from_gp(gp):
diff --git a/GPy/models/gp_coregionalized_regression.py b/GPy/models/gp_coregionalized_regression.py
index 66edb8d7..6604f634 100644
--- a/GPy/models/gp_coregionalized_regression.py
+++ b/GPy/models/gp_coregionalized_regression.py
@@ -38,7 +38,7 @@ class GPCoregionalizedRegression(GP):
         if kernel is None:
             kernel = kern.RBF(X.shape[1]-1)
             
-            kernel = util.multioutput.ICM(input_dim=X.shape[1]-1, num_outputs=Ny, kernel=kernel, W_rank=1,name=kernel_name)
+            kernel = util.multioutput.ICM(input_dim=X.shape[1]-1, num_outputs=Ny, kernel=kernel, W_rank=W_rank,name=kernel_name)
 
         #Likelihood
         likelihood = util.multioutput.build_likelihood(Y_list,self.output_index,likelihoods_list)
diff --git a/GPy/models/gp_kronecker_gaussian_regression.py b/GPy/models/gp_kronecker_gaussian_regression.py
index 44177b16..7898a97a 100644
--- a/GPy/models/gp_kronecker_gaussian_regression.py
+++ b/GPy/models/gp_kronecker_gaussian_regression.py
@@ -18,18 +18,15 @@ class GPKroneckerGaussianRegression(Model):
 
     The noise must be iid Gaussian.
 
-    See Stegle et al.
-    @inproceedings{stegle2011efficient,
-      title={Efficient inference in matrix-variate gaussian models with $\\backslash$ iid observation noise},
-      author={Stegle, Oliver and Lippert, Christoph and Mooij, Joris M and Lawrence, Neil D and Borgwardt, Karsten M},
-      booktitle={Advances in Neural Information Processing Systems},
-      pages={630--638},
-      year={2011}
-    }
+    See [stegle_et_al_2011]_.
+
+    .. rubric:: References
+
+    .. [stegle_et_al_2011] Stegle, O.; Lippert, C.; Mooij, J.M.; Lawrence, N.D.; Borgwardt, K.:Efficient inference in matrix-variate Gaussian models with \iid observation noise. In: Advances in Neural Information Processing Systems, 2011, Pages 630-638
 
     """
     def __init__(self, X1, X2, Y, kern1, kern2, noise_var=1., name='KGPR'):
-        Model.__init__(self, name=name)
+        super(GPKroneckerGaussianRegression, self).__init__(name=name)
 
         # accept the construction arguments
         self.X1 = ObsAr(X1)
diff --git a/GPy/models/gp_multiout_regression.py b/GPy/models/gp_multiout_regression.py
index ede6095e..816fc0d7 100644
--- a/GPy/models/gp_multiout_regression.py
+++ b/GPy/models/gp_multiout_regression.py
@@ -15,9 +15,11 @@ class GPMultioutRegression(SparseGP):
     """
     Gaussian Process model for multi-output regression without missing data
 
-    This is an implementation of Latent Variable Multiple Output Gaussian Processes (LVMOGP) in [Dai et al. 2017].
+    This is an implementation of Latent Variable Multiple Output Gaussian Processes (LVMOGP) in [Dai_et_al_2017]_.
 
-    Zhenwen Dai, Mauricio A. Alvarez and Neil D. Lawrence. Efficient Modeling of Latent Information in Supervised Learning using Gaussian Processes. In NIPS, 2017.
+    .. rubric:: References
+
+    .. [Dai_et_al_2017] Dai, Z.; Alvarez, M.A.; Lawrence, N.D: Efficient Modeling of Latent Information in Supervised Learning using Gaussian Processes. In NIPS, 2017.
 
     :param X: input observations.
     :type X: numpy.ndarray
@@ -42,6 +44,7 @@ class GPMultioutRegression(SparseGP):
     :param int qU_var_c_W_dim: the dimensionality of the covariance of q(U) for the GP regression. If it is smaller than the number of inducing points, it represents a low-rank parameterization of the covariance matrix.
     :param str init: the choice of initialization: 'GP' or 'rand'. With 'rand', the model is initialized randomly. With 'GP', the model is initialized through a protocol as follows: (1) fits a sparse GP (2) fits a BGPLVM based on the outcome of sparse GP (3) initialize the model based on the outcome of the BGPLVM.
     :param str name: the name of the model
+
     """
     def __init__(self, X, Y, Xr_dim, kernel=None, kernel_row=None, Z=None, Z_row=None, X_row=None, Xvariance_row=None, num_inducing=(10,10), qU_var_r_W_dim=None, qU_var_c_W_dim=None, init='GP', name='GPMR'):
 
diff --git a/GPy/models/gp_multiout_regression_md.py b/GPy/models/gp_multiout_regression_md.py
index 36d24c48..292f525d 100644
--- a/GPy/models/gp_multiout_regression_md.py
+++ b/GPy/models/gp_multiout_regression_md.py
@@ -13,12 +13,22 @@ from ..util.linalg import tdot
 from .sparse_gp_regression_md import SparseGPRegressionMD
 
 class GPMultioutRegressionMD(SparseGP):
-    """
-    Gaussian Process model for multi-output regression with missing data
+    """Gaussian Process model for multi-output regression with missing data
 
-    This is an implementation of Latent Variable Multiple Output Gaussian Processes (LVMOGP) in [Dai et al. 2017]. This model targets at the use case, in which each output dimension is observed at a different set of inputs. The model takes a different data format: the inputs and outputs observations of all the output dimensions are stacked together correspondingly into two matrices. An extra array is used to indicate the index of output dimension for each data point. The output dimensions are indexed using integers from 0 to D-1 assuming there are D output dimensions.
+    This is an implementation of Latent Variable Multiple Output
+    Gaussian Processes (LVMOGP) in [Dai_et_al_2017]_. This model
+    targets at the use case, in which each output dimension is
+    observed at a different set of inputs. The model takes a different
+    data format: the inputs and outputs observations of all the output
+    dimensions are stacked together correspondingly into two
+    matrices. An extra array is used to indicate the index of output
+    dimension for each data point. The output dimensions are indexed
+    using integers from 0 to D-1 assuming there are D output
+    dimensions.
 
-    Zhenwen Dai, Mauricio A. Alvarez and Neil D. Lawrence. Efficient Modeling of Latent Information in Supervised Learning using Gaussian Processes. In NIPS, 2017.
+    .. rubric:: References
+
+    .. [Dai_et_al_2017] Dai, Z.; Alvarez, M.A.; Lawrence, N.D: Efficient Modeling of Latent Information in Supervised Learning using Gaussian Processes. In NIPS, 2017.
 
     :param X: input observations.
     :type X: numpy.ndarray
@@ -46,6 +56,8 @@ class GPMultioutRegressionMD(SparseGP):
     :param str init: the choice of initialization: 'GP' or 'rand'. With 'rand', the model is initialized randomly. With 'GP', the model is initialized through a protocol as follows: (1) fits a sparse GP (2) fits a BGPLVM based on the outcome of sparse GP (3) initialize the model based on the outcome of the BGPLVM.
     :param boolean heter_noise: whether assuming heteroscedastic noise in the model, boolean
     :param str name: the name of the model
+
+
     """
     def __init__(self, X, Y, indexD, Xr_dim, kernel=None, kernel_row=None,  Z=None, Z_row=None, X_row=None, Xvariance_row=None, num_inducing=(10,10), qU_var_r_W_dim=None, qU_var_c_W_dim=None, init='GP', heter_noise=False, name='GPMRMD'):
 
diff --git a/GPy/models/gp_var_gauss.py b/GPy/models/gp_var_gauss.py
index 4c8fa7ef..6a61b604 100644
--- a/GPy/models/gp_var_gauss.py
+++ b/GPy/models/gp_var_gauss.py
@@ -13,13 +13,9 @@ class GPVariationalGaussianApproximation(GP):
     """
     The Variational Gaussian Approximation revisited
 
-    @article{Opper:2009,
-        title = {The Variational Gaussian Approximation Revisited},
-        author = {Opper, Manfred and Archambeau, C{\'e}dric},
-        journal = {Neural Comput.},
-        year = {2009},
-        pages = {786--792},
-    }
+    .. rubric:: References
+
+    .. [opper_archambeau_2009] Opper, M.; Archambeau, C.; The Variational Gaussian Approximation Revisited. Neural Comput. 2009, pages 786-792.
     """
     def __init__(self, X, Y, kernel, likelihood, Y_metadata=None):
 
diff --git a/GPy/models/gradient_checker.py b/GPy/models/gradient_checker.py
index f7c17376..904b88c6 100644
--- a/GPy/models/gradient_checker.py
+++ b/GPy/models/gradient_checker.py
@@ -39,28 +39,30 @@ class GradientChecker(Model):
             a list of names with the same length is expected.
         :param args: Arguments passed as f(x, *args, **kwargs) and df(x, *args, **kwargs)
 
-        Examples:
-        ---------
+        .. rubric:: Examples
+        
+        Initialisation::
+
             from GPy.models import GradientChecker
             N, M, Q = 10, 5, 3
 
-            Sinusoid:
+        Sinusoid::
 
-                X = numpy.random.rand(N, Q)
-                grad = GradientChecker(numpy.sin,numpy.cos,X,'x')
-                grad.checkgrad(verbose=1)
+            X = numpy.random.rand(N, Q)
+            grad = GradientChecker(numpy.sin,numpy.cos,X,'x')
+            grad.checkgrad(verbose=1)
 
-            Using GPy:
+        Using GPy::
 
-                X, Z = numpy.random.randn(N,Q), numpy.random.randn(M,Q)
-                kern = GPy.kern.linear(Q, ARD=True) + GPy.kern.rbf(Q, ARD=True)
-                grad = GradientChecker(kern.K,
-                                       lambda x: 2*kern.dK_dX(numpy.ones((1,1)), x),
-                                       x0 = X.copy(),
-                                       names='X')
-                grad.checkgrad(verbose=1)
-                grad.randomize()
-                grad.checkgrad(verbose=1)
+            X, Z = numpy.random.randn(N,Q), numpy.random.randn(M,Q)
+            kern = GPy.kern.linear(Q, ARD=True) + GPy.kern.rbf(Q, ARD=True)
+            grad = GradientChecker(kern.K,
+                                    lambda x: 2*kern.dK_dX(numpy.ones((1,1)), x),
+                                    x0 = X.copy(),
+                                    names='X')
+            grad.checkgrad(verbose=1)
+            grad.randomize()
+            grad.checkgrad(verbose=1)
         """
         super(GradientChecker, self).__init__(name='GradientChecker')
         if isinstance(x0, (list, tuple)) and names is None:
diff --git a/GPy/models/mrd.py b/GPy/models/mrd.py
index 4239f7a9..3c8cd4d1 100644
--- a/GPy/models/mrd.py
+++ b/GPy/models/mrd.py
@@ -63,7 +63,6 @@ class MRD(BayesianGPLVMMiniBatch):
                  Ynames=None, normalizer=False, stochastic=False, batchsize=10):
 
         self.logger = logging.getLogger(self.__class__.__name__)
-        self.input_dim = input_dim
         self.num_inducing = num_inducing
 
         if isinstance(Ylist, dict):
@@ -87,11 +86,11 @@ class MRD(BayesianGPLVMMiniBatch):
             self.inference_method = inference_method
 
         if X is None:
-            X, fracs = self._init_X(initx, Ylist)
+            X, fracs = self._init_X(input_dim, initx, Ylist)
         else:
             fracs = [X.var(0)]*len(Ylist)
 
-        Z = self._init_Z(initz, X)
+        Z = self._init_Z(initz, X, input_dim)
         self.Z = Param('inducing inputs', Z)
         self.num_inducing = self.Z.shape[0] # ensure M==N if M>N
 
@@ -128,7 +127,6 @@ class MRD(BayesianGPLVMMiniBatch):
         self.unlink_parameter(self.likelihood)
         self.unlink_parameter(self.kern)
 
-        self.num_data = Ylist[0].shape[0]
         if isinstance(batchsize, int):
             batchsize = itertools.repeat(batchsize)
 
@@ -187,32 +185,32 @@ class MRD(BayesianGPLVMMiniBatch):
     def log_likelihood(self):
         return self._log_marginal_likelihood
 
-    def _init_X(self, init='PCA', Ylist=None):
+    def _init_X(self, input_dim, init='PCA', Ylist=None):
         if Ylist is None:
             Ylist = self.Ylist
         if init in "PCA_concat":
-            X, fracs = initialize_latent('PCA', self.input_dim, np.hstack(Ylist))
+            X, fracs = initialize_latent('PCA', input_dim, np.hstack(Ylist))
             fracs = [fracs]*len(Ylist)
         elif init in "PCA_single":
-            X = np.zeros((Ylist[0].shape[0], self.input_dim))
-            fracs = np.empty((len(Ylist), self.input_dim))
-            for qs, Y in zip(np.array_split(np.arange(self.input_dim), len(Ylist)), Ylist):
+            X = np.zeros((Ylist[0].shape[0], input_dim))
+            fracs = np.empty((len(Ylist), input_dim))
+            for qs, Y in zip(np.array_split(np.arange(input_dim), len(Ylist)), Ylist):
                 x, frcs = initialize_latent('PCA', len(qs), Y)
                 X[:, qs] = x
                 fracs[:, qs] = frcs
         else: # init == 'random':
-            X = np.random.randn(Ylist[0].shape[0], self.input_dim)
+            X = np.random.randn(Ylist[0].shape[0], input_dim)
             fracs = X.var(0)
             fracs = [fracs]*len(Ylist)
         X -= X.mean()
         X /= X.std()
         return X, fracs
 
-    def _init_Z(self, init, X):
+    def _init_Z(self, init, X, input_dim):
         if init in "permute":
             Z = np.random.permutation(X.copy())[:self.num_inducing]
         elif init in "random":
-            Z = np.random.randn(self.num_inducing, self.input_dim) * X.var()
+            Z = np.random.randn(self.num_inducing, input_dim) * X.var()
         return Z
 
     def predict(self, Xnew, full_cov=False, Y_metadata=None, kern=None, Yindex=0):
@@ -350,5 +348,3 @@ class MRD(BayesianGPLVMMiniBatch):
                 print('# Private dimensions model ' + str(i) + ':' + str(privateDims[i]))
 
         return sharedDims, privateDims
-
-
diff --git a/GPy/models/sparse_gp_classification.py b/GPy/models/sparse_gp_classification.py
index 296b70f4..4713b3e9 100644
--- a/GPy/models/sparse_gp_classification.py
+++ b/GPy/models/sparse_gp_classification.py
@@ -46,8 +46,8 @@ class SparseGPClassification(SparseGP):
         if inference_method is None:
             inference_method = EPDTC()
 
-        SparseGP.__init__(self, X, Y, Z, kernel, likelihood, mean_function=mean_function, inference_method=inference_method,
-                          normalizer=normalizer, name='SparseGPClassification', Y_metadata=Y_metadata)
+        super(SparseGPClassification, self).__init__(X, Y, Z, kernel, likelihood, mean_function=mean_function, inference_method=inference_method,
+                                                     normalizer=normalizer, name='SparseGPClassification', Y_metadata=Y_metadata)
 
     @staticmethod
     def from_sparse_gp(sparse_gp):
@@ -136,9 +136,9 @@ class SparseGPClassificationUncertainInput(SparseGP):
 
         X = NormalPosterior(X, X_variance)
 
-        SparseGP.__init__(self, X, Y, Z, kernel, likelihood,
-                          inference_method=EPDTC(),
-                          name='SparseGPClassification', Y_metadata=Y_metadata, normalizer=normalizer)
+        super(SparseGPClassificationUncertainInput, self).__init__(X, Y, Z, kernel, likelihood,
+                                                                   inference_method=EPDTC(), name='SparseGPClassification',
+                                                                   Y_metadata=Y_metadata, normalizer=normalizer)
 
     def parameters_changed(self):
         #Compute the psi statistics for N once, but don't sum out N in psi2
diff --git a/GPy/models/sparse_gp_coregionalized_regression.py b/GPy/models/sparse_gp_coregionalized_regression.py
index 88841891..2a19d52c 100644
--- a/GPy/models/sparse_gp_coregionalized_regression.py
+++ b/GPy/models/sparse_gp_coregionalized_regression.py
@@ -44,7 +44,7 @@ class SparseGPCoregionalizedRegression(SparseGP):
         if kernel is None:
             kernel = kern.RBF(X.shape[1]-1)
             
-            kernel = util.multioutput.ICM(input_dim=X.shape[1]-1, num_outputs=Ny, kernel=kernel, W_rank=1,name=kernel_name)
+            kernel = util.multioutput.ICM(input_dim=X.shape[1]-1, num_outputs=Ny, kernel=kernel, W_rank=W_rank, name=kernel_name)
 
         #Likelihood
         likelihood = util.multioutput.build_likelihood(Y_list,self.output_index,likelihoods_list)
diff --git a/GPy/models/sparse_gp_minibatch.py b/GPy/models/sparse_gp_minibatch.py
index d1c252f8..68b92618 100644
--- a/GPy/models/sparse_gp_minibatch.py
+++ b/GPy/models/sparse_gp_minibatch.py
@@ -43,6 +43,10 @@ class SparseGPMiniBatch(SparseGP):
                  missing_data=False, stochastic=False, batchsize=1):
         self._update_stochastics = False
 
+        # FIXME(?): Half of this function seems to be copy-pasted from
+        #           SparseGP.__init, any particular reason why SparseGP.__init
+        #           is not called (instead of calling GP.__init__ directly)?
+
         # pick a sensible inference method
         if inference_method is None:
             if isinstance(likelihood, likelihoods.Gaussian):
@@ -56,7 +60,8 @@ class SparseGPMiniBatch(SparseGP):
         self.Z = Param('inducing inputs', Z)
         self.num_inducing = Z.shape[0]
 
-        GP.__init__(self, X, Y, kernel, likelihood, inference_method=inference_method, name=name, Y_metadata=Y_metadata, normalizer=normalizer)
+        # Skip SparseGP.__init (see remark above)
+        super(SparseGP, self).__init__(X, Y, kernel, likelihood, inference_method=inference_method, name=name, Y_metadata=Y_metadata, normalizer=normalizer)
         self.missing_data = missing_data
 
         if stochastic and missing_data:
diff --git a/GPy/models/sparse_gp_regression.py b/GPy/models/sparse_gp_regression.py
index 8b78ac43..4751ed99 100644
--- a/GPy/models/sparse_gp_regression.py
+++ b/GPy/models/sparse_gp_regression.py
@@ -55,7 +55,7 @@ class SparseGPRegression(SparseGP_MPI):
         else:
             infr = VarDTC()
 
-        SparseGP_MPI.__init__(self, X, Y, Z, kernel, likelihood, mean_function=mean_function,
+        super(SparseGPRegression, self).__init__(X, Y, Z, kernel, likelihood, mean_function=mean_function,
         inference_method=infr, normalizer=normalizer, mpi_comm=mpi_comm, name=name)
 
     def parameters_changed(self):
diff --git a/GPy/models/sparse_gp_regression_md.py b/GPy/models/sparse_gp_regression_md.py
index 4dcfc150..bf9b784c 100644
--- a/GPy/models/sparse_gp_regression_md.py
+++ b/GPy/models/sparse_gp_regression_md.py
@@ -10,10 +10,18 @@ from ..inference.latent_function_inference.vardtc_md import VarDTC_MD
 from GPy.core.parameterization.variational import NormalPosterior
 
 class SparseGPRegressionMD(SparseGP_MPI):
-    """
-    Sparse Gaussian Process Regression with Missing Data
+    """Sparse Gaussian Process Regression with Missing Data
 
-    This model targets at the use case, in which there are multiple output dimensions (different dimensions are assumed to be independent following the same GP prior) and each output dimension is observed at a different set of inputs. The model takes a different data format: the inputs and outputs observations of all the output dimensions are stacked together correspondingly into two matrices. An extra array is used to indicate the index of output dimension for each data point. The output dimensions are indexed using integers from 0 to D-1 assuming there are D output dimensions.
+    This model targets at the use case, in which there are multiple
+    output dimensions (different dimensions are assumed to be
+    independent following the same GP prior) and each output dimension
+    is observed at a different set of inputs. The model takes a
+    different data format: the inputs and outputs observations of all
+    the output dimensions are stacked together correspondingly into
+    two matrices. An extra array is used to indicate the index of
+    output dimension for each data point. The output dimensions are
+    indexed using integers from 0 to D-1 assuming there are D output
+    dimensions.
 
     :param X: input observations.
     :type X: numpy.ndarray
@@ -29,6 +37,7 @@ class SparseGPRegressionMD(SparseGP_MPI):
     :type num_inducing: (int, int)
     :param boolean individual_Y_noise: whether individual output dimensions have their own noise variance or not, boolean
     :param str name: the name of the model
+
     """
 
     def __init__(self, X, Y, indexD, kernel=None, Z=None, num_inducing=10,  normalizer=None, mpi_comm=None, individual_Y_noise=False, name='sparse_gp'):
@@ -58,7 +67,7 @@ class SparseGPRegressionMD(SparseGP_MPI):
 
         infr = VarDTC_MD()
 
-        SparseGP_MPI.__init__(self, X, Y, Z, kernel, likelihood, inference_method=infr, normalizer=normalizer, mpi_comm=mpi_comm, name=name)
+        super(SparseGPRegressionMD, self).__init__(X, Y, Z, kernel, likelihood, inference_method=infr, normalizer=normalizer, mpi_comm=mpi_comm, name=name)
         self.output_dim = output_dim
 
     def parameters_changed(self):
diff --git a/GPy/models/sparse_gplvm.py b/GPy/models/sparse_gplvm.py
index 53696b45..1ed6d10c 100644
--- a/GPy/models/sparse_gplvm.py
+++ b/GPy/models/sparse_gplvm.py
@@ -23,7 +23,7 @@ class SparseGPLVM(SparseGPRegression):
             from ..util.initialization import initialize_latent
             X, fracs = initialize_latent(init, input_dim, Y)
         X = Param('latent space', X)
-        SparseGPRegression.__init__(self, X, Y, kernel=kernel, num_inducing=num_inducing)
+        super(SparseGPLVM, self).__init__(X, Y, kernel=kernel, num_inducing=num_inducing)
         self.link_parameter(self.X, 0)
 
     def parameters_changed(self):
diff --git a/GPy/models/state_space_cython.c b/GPy/models/state_space_cython.c
index 2f462748..46d3c02c 100644
--- a/GPy/models/state_space_cython.c
+++ b/GPy/models/state_space_cython.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.29.2 */
+/* Generated by Cython 0.29.21 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,8 +7,8 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_29_2"
-#define CYTHON_HEX_VERSION 0x001D02F0
+#define CYTHON_ABI "0_29_21"
+#define CYTHON_HEX_VERSION 0x001D15F0
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -310,8 +310,13 @@
   #define __Pyx_DefaultClassType PyClass_Type
 #else
   #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+#if PY_VERSION_HEX >= 0x030800A4 && PY_VERSION_HEX < 0x030800B2
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, 0, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#else
   #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#endif
   #define __Pyx_DefaultClassType PyType_Type
 #endif
 #ifndef Py_TPFLAGS_CHECKTYPES
@@ -346,26 +351,6 @@
 #else
 #define __Pyx_PyFastCFunction_Check(func) 0
 #endif
-#if CYTHON_USE_DICT_VERSIONS
-#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
-    (version_var) = __PYX_GET_DICT_VERSION(dict);\
-    (cache_var) = (value);
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
-        static PY_UINT64_T __pyx_dict_version = 0;\
-        static PyObject *__pyx_dict_cached_value = NULL;\
-        if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
-            (VAR) = __pyx_dict_cached_value;\
-        } else {\
-            (VAR) = __pyx_dict_cached_value = (LOOKUP);\
-            __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
-        }\
-    }
-#else
-#define __PYX_GET_DICT_VERSION(dict)  (0)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
-#endif
 #if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
   #define PyObject_Malloc(s)   PyMem_Malloc(s)
   #define PyObject_Free(p)     PyMem_Free(p)
@@ -398,7 +383,7 @@
 typedef int Py_tss_t;
 static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
   *key = PyThread_create_key();
-  return 0; // PyThread_create_key reports success always
+  return 0;
 }
 static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
   Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
@@ -421,7 +406,7 @@ static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
 static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   return PyThread_get_key_value(*key);
 }
-#endif // TSS (Thread Specific Storage) API
+#endif
 #if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
 #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
 #else
@@ -450,7 +435,11 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
   #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
   #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
+  #if defined(PyUnicode_IS_READY) && defined(PyUnicode_GET_SIZE)
   #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+  #else
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
+  #endif
 #else
   #define CYTHON_PEP393_ENABLED 0
   #define PyUnicode_1BYTE_KIND  1
@@ -499,8 +488,10 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+#ifndef PyObject_Unicode
   #define PyObject_Unicode             PyObject_Str
 #endif
+#endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
   #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
@@ -511,6 +502,13 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
 #ifndef PySet_CheckExact
   #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
 #endif
+#if PY_VERSION_HEX >= 0x030900A4
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SET_SIZE(obj, size)
+#else
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
+#endif
 #if CYTHON_ASSUME_SAFE_MACROS
   #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
 #else
@@ -550,7 +548,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
 #endif
 #if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? ((void)(klass), PyMethod_New(func, self)) : __Pyx_NewRef(func))
 #else
   #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
 #endif
@@ -591,11 +589,10 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __Pyx_truncl truncl
 #endif
 
-
+#define __PYX_MARK_ERR_POS(f_index, lineno) \
+    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
 #define __PYX_ERR(f_index, lineno, Ln_error) \
-{ \
-  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
-}
+    { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }
 
 #ifndef __PYX_EXTERN_C
   #ifdef __cplusplus
@@ -611,7 +608,13 @@ static CYTHON_INLINE float __PYX_NAN() {
 #include <string.h>
 #include <stdio.h>
 #include "numpy/arrayobject.h"
+#include "numpy/ndarrayobject.h"
+#include "numpy/ndarraytypes.h"
+#include "numpy/arrayscalars.h"
 #include "numpy/ufuncobject.h"
+
+    /* NumPy API declarations from "numpy/__init__.pxd" */
+    
 #include "numpy/npy_math.h"
 #ifdef _OPENMP
 #include <omp.h>
@@ -625,7 +628,8 @@ typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* enc
                 const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
 
 #define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
-#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_UTF8 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT (PY_MAJOR_VERSION >= 3 && __PYX_DEFAULT_STRING_ENCODING_IS_UTF8)
 #define __PYX_DEFAULT_STRING_ENCODING ""
 #define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
 #define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
@@ -884,7 +888,7 @@ typedef struct {
 } __Pyx_BufFmt_Context;
 
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":690
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -893,7 +897,7 @@ typedef struct {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":691
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -902,7 +906,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":692
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -911,7 +915,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":693
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -920,7 +924,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":697
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -929,7 +933,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":698
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -938,7 +942,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":699
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -947,7 +951,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":700
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -956,7 +960,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":704
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -965,7 +969,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":705
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -974,7 +978,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":714
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -983,7 +987,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":715
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -992,7 +996,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":716
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -1001,7 +1005,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":718
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -1010,7 +1014,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":719
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -1019,7 +1023,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":720
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -1028,7 +1032,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":722
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -1037,7 +1041,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":723
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -1046,7 +1050,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":725
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1055,7 +1059,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":726
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1064,7 +1068,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":727
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1124,7 +1128,7 @@ struct __pyx_obj_3GPy_6models_18state_space_cython_Q_handling_Cython;
 struct __pyx_obj_3GPy_6models_18state_space_cython_Std_Dynamic_Callables_Cython;
 struct __pyx_obj_3GPy_6models_18state_space_cython_AQcompute_batch_Cython;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":729
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1133,7 +1137,7 @@ struct __pyx_obj_3GPy_6models_18state_space_cython_AQcompute_batch_Cython;
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":730
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1142,7 +1146,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":731
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1151,7 +1155,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":733
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1542,12 +1546,38 @@ static CYTHON_INLINE void __Pyx_SafeReleaseBuffer(Py_buffer* info);
 static Py_ssize_t __Pyx_minusones[] = { -1, -1, -1, -1, -1, -1, -1, -1 };
 static Py_ssize_t __Pyx_zeros[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
 
+/* PyDictVersioning.proto */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+#define __PYX_DICT_VERSION_INIT  ((PY_UINT64_T) -1)
+#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
+    (version_var) = __PYX_GET_DICT_VERSION(dict);\
+    (cache_var) = (value);
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
+        (VAR) = __pyx_dict_cached_value;\
+    } else {\
+        (VAR) = __pyx_dict_cached_value = (LOOKUP);\
+        __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
+    }\
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj);
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj);
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version);
+#else
+#define __PYX_GET_DICT_VERSION(dict)  (0)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
+#endif
+
 /* PyFunctionFastCall.proto */
 #if CYTHON_FAST_PYCALL
 #define __Pyx_PyFunction_FastCall(func, args, nargs)\
     __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs);
 #else
 #define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
 #endif
@@ -1773,9 +1803,9 @@ static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObje
 
 /* PyFloatBinop.proto */
 #if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyFloat_DivideCObj(PyObject *op1, PyObject *op2, double floatval, int inplace);
+static PyObject* __Pyx_PyFloat_DivideCObj(PyObject *op1, PyObject *op2, double floatval, int inplace, int zerodivision_check);
 #else
-#define __Pyx_PyFloat_DivideCObj(op1, op2, floatval, inplace)\
+#define __Pyx_PyFloat_DivideCObj(op1, op2, floatval, inplace, zerodivision_check)\
     ((inplace ? __Pyx_PyNumber_InPlaceDivide(op1, op2) : __Pyx_PyNumber_Divide(op1, op2)))
     #endif
 
@@ -1788,9 +1818,6 @@ static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
 /* HasAttr.proto */
 static CYTHON_INLINE int __Pyx_HasAttr(PyObject *, PyObject *);
 
-/* RaiseNoneIterError.proto */
-static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
-
 /* GetTopmostException.proto */
 #if CYTHON_USE_EXC_INFO_STACK
 static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate);
@@ -1838,6 +1865,9 @@ static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_nam
 /* SetVTable.proto */
 static int __Pyx_SetVtable(PyObject *dict, void *vtable);
 
+/* PyObjectGetAttrStrNoError.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name);
+
 /* SetupReduce.proto */
 static int __Pyx_setup_reduce(PyObject* type_obj);
 
@@ -2008,9 +2038,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_Py_intptr_t(Py_intptr_t value);
     #endif
 #endif
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
-
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
@@ -2098,8 +2125,17 @@ static PyTypeObject *__pyx_ptype_5numpy_dtype = 0;
 static PyTypeObject *__pyx_ptype_5numpy_flatiter = 0;
 static PyTypeObject *__pyx_ptype_5numpy_broadcast = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ndarray = 0;
+static PyTypeObject *__pyx_ptype_5numpy_generic = 0;
+static PyTypeObject *__pyx_ptype_5numpy_number = 0;
+static PyTypeObject *__pyx_ptype_5numpy_integer = 0;
+static PyTypeObject *__pyx_ptype_5numpy_signedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_unsignedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_inexact = 0;
+static PyTypeObject *__pyx_ptype_5numpy_floating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_complexfloating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_flexible = 0;
+static PyTypeObject *__pyx_ptype_5numpy_character = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
-static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
 
 /* Module declarations from 'cython' */
 
@@ -2129,7 +2165,6 @@ static PyObject *__pyx_builtin_NotImplemented;
 static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_super;
 static PyObject *__pyx_builtin_range;
-static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
 static const char __pyx_k_A[] = "A";
 static const char __pyx_k_H[] = "H";
@@ -2268,7 +2303,6 @@ static const char __pyx_k_ImportError[] = "ImportError";
 static const char __pyx_k_PickleError[] = "PickleError";
 static const char __pyx_k_measurement[] = "measurement";
 static const char __pyx_k_overwrite_a[] = "overwrite_a";
-static const char __pyx_k_RuntimeError[] = "RuntimeError";
 static const char __pyx_k_check_finite[] = "check_finite";
 static const char __pyx_k_k_measurment[] = "k_measurment";
 static const char __pyx_k_param_number[] = "param_number";
@@ -2319,7 +2353,6 @@ static const char __pyx_k_d_log_likelihood_update[] = "d_log_likelihood_update";
 static const char __pyx_k_p_measurement_callables[] = "p_measurement_callables";
 static const char __pyx_k_Dynamic_Callables_Cython[] = "Dynamic_Callables_Cython";
 static const char __pyx_k_calc_grad_log_likelihood[] = "calc_grad_log_likelihood";
-static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
 static const char __pyx_k_Measurement_Callables_Cython[] = "Measurement_Callables_Cython";
 static const char __pyx_k_Std_Dynamic_Callables_Cython[] = "Std_Dynamic_Callables_Cython";
 static const char __pyx_k_cython_Ak_is_not_implemented[] = "(cython) Ak is not implemented!";
@@ -2345,8 +2378,6 @@ static const char __pyx_k_cython_Q_srk_is_not_implemented[] = "(cython) Q_srk is
 static const char __pyx_k_cython_reset_is_not_implemented[] = "(cython) reset is not implemented!";
 static const char __pyx_k_kalman_prediction_step_SVD_Cyth[] = "_kalman_prediction_step_SVD_Cython";
 static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
-static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
-static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
 static const char __pyx_k_GPy_models_state_space_cython_py[] = "GPy/models/state_space_cython.pyx";
 static const char __pyx_k_Incompatible_checksums_s_vs_0x14[] = "Incompatible checksums (%s vs 0x146e1f7 = (As, Q, Q_square_root, Q_svd_dict, Q_time_var_index, Qs, dAs, dQ, dQs, index, last_k, reconstruct_indices, svd_each_time))";
 static const char __pyx_k_Incompatible_checksums_s_vs_0x70[] = "Incompatible checksums (%s vs 0x706c35f = (H, H_time_var_index, R, R_square_root, R_time_var_index, dH, dR, index, svd_each_time))";
@@ -2357,11 +2388,8 @@ static const char __pyx_k_Incompatible_checksums_s_vs_0xdf[] = "Incompatible che
 static const char __pyx_k_Kalman_Filter_Update_SVD_S_is_ne[] = "Kalman Filter Update SVD: S is negative step %i";
 static const char __pyx_k_Measurement_dimension_larger_the[] = "Measurement dimension larger then 1 is currently not supported";
 static const char __pyx_k_Nan_measurements_are_currently_n[] = "Nan measurements are currently not supported if\n                                     they are intermixed with not NaN measurements";
-static const char __pyx_k_Non_native_byte_order_not_suppor[] = "Non-native byte order not supported";
 static const char __pyx_k_Std_Measurement_Callables_Cython[] = "Std_Measurement_Callables_Cython";
-static const char __pyx_k_ndarray_is_not_Fortran_contiguou[] = "ndarray is not Fortran contiguous";
 static const char __pyx_k_numpy_core_umath_failed_to_impor[] = "numpy.core.umath failed to import";
-static const char __pyx_k_Format_string_allocated_too_shor_2[] = "Format string allocated too short.";
 static PyObject *__pyx_n_s_A;
 static PyObject *__pyx_n_s_AQcompute_batch_Cython;
 static PyObject *__pyx_n_s_A_time_var_index;
@@ -2370,8 +2398,6 @@ static PyObject *__pyx_n_s_As;
 static PyObject *__pyx_n_s_DTYPE;
 static PyObject *__pyx_n_s_DTYPE_int;
 static PyObject *__pyx_n_s_Dynamic_Callables_Cython;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor_2;
 static PyObject *__pyx_n_s_GPy_models_state_space_cython;
 static PyObject *__pyx_kp_s_GPy_models_state_space_cython_py;
 static PyObject *__pyx_n_s_H;
@@ -2391,7 +2417,6 @@ static PyObject *__pyx_n_s_Measurement_Callables_Cython;
 static PyObject *__pyx_kp_s_Measurement_dimension_larger_the;
 static PyObject *__pyx_kp_s_Nan_measurements_are_currently_n;
 static PyObject *__pyx_kp_s_Nan_values_in_likelihood_update;
-static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
 static PyObject *__pyx_n_s_NotImplemented;
 static PyObject *__pyx_n_s_P;
 static PyObject *__pyx_n_s_P_init;
@@ -2415,7 +2440,6 @@ static PyObject *__pyx_n_s_R_isr;
 static PyObject *__pyx_n_s_R_isrk;
 static PyObject *__pyx_n_s_R_time_var_index;
 static PyObject *__pyx_n_s_Rk;
-static PyObject *__pyx_n_s_RuntimeError;
 static PyObject *__pyx_n_s_S;
 static PyObject *__pyx_n_s_S_new;
 static PyObject *__pyx_n_s_S_old;
@@ -2519,8 +2543,6 @@ static PyObject *__pyx_n_s_measurement;
 static PyObject *__pyx_n_s_measurement_dim_gt_one;
 static PyObject *__pyx_n_s_name;
 static PyObject *__pyx_n_s_nbytes;
-static PyObject *__pyx_kp_u_ndarray_is_not_C_contiguous;
-static PyObject *__pyx_kp_u_ndarray_is_not_Fortran_contiguou;
 static PyObject *__pyx_n_s_new;
 static PyObject *__pyx_n_s_np;
 static PyObject *__pyx_n_s_numpy;
@@ -2587,7 +2609,6 @@ static PyObject *__pyx_n_s_total_size_of_data;
 static PyObject *__pyx_n_s_unique;
 static PyObject *__pyx_n_s_unique_Q_number;
 static PyObject *__pyx_n_s_unique_R_number;
-static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_n_s_update;
 static PyObject *__pyx_n_s_v;
 static PyObject *__pyx_n_s_vstack;
@@ -2656,8 +2677,6 @@ static PyObject *__pyx_pf_3GPy_6models_18state_space_cython_12__pyx_unpickle_Std
 static PyObject *__pyx_pf_3GPy_6models_18state_space_cython_14__pyx_unpickle_Q_handling_Cython(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v___pyx_type, long __pyx_v___pyx_checksum, PyObject *__pyx_v___pyx_state); /* proto */
 static PyObject *__pyx_pf_3GPy_6models_18state_space_cython_16__pyx_unpickle_Std_Dynamic_Callables_Cython(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v___pyx_type, long __pyx_v___pyx_checksum, PyObject *__pyx_v___pyx_state); /* proto */
 static PyObject *__pyx_pf_3GPy_6models_18state_space_cython_18__pyx_unpickle_AQcompute_batch_Cython(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v___pyx_type, long __pyx_v___pyx_checksum, PyObject *__pyx_v___pyx_state); /* proto */
-static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
-static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static PyObject *__pyx_tp_new_3GPy_6models_18state_space_cython_Dynamic_Callables_Cython(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_3GPy_6models_18state_space_cython_Measurement_Callables_Cython(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_3GPy_6models_18state_space_cython_R_handling_Cython(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
@@ -2699,30 +2718,25 @@ static PyObject *__pyx_tuple__18;
 static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 static PyObject *__pyx_tuple__21;
-static PyObject *__pyx_tuple__22;
 static PyObject *__pyx_tuple__23;
-static PyObject *__pyx_tuple__24;
 static PyObject *__pyx_tuple__25;
-static PyObject *__pyx_tuple__26;
-static PyObject *__pyx_tuple__28;
-static PyObject *__pyx_tuple__30;
-static PyObject *__pyx_tuple__32;
-static PyObject *__pyx_tuple__34;
-static PyObject *__pyx_tuple__36;
-static PyObject *__pyx_tuple__38;
-static PyObject *__pyx_tuple__40;
-static PyObject *__pyx_tuple__42;
-static PyObject *__pyx_tuple__44;
-static PyObject *__pyx_codeobj__27;
-static PyObject *__pyx_codeobj__29;
-static PyObject *__pyx_codeobj__31;
-static PyObject *__pyx_codeobj__33;
-static PyObject *__pyx_codeobj__35;
-static PyObject *__pyx_codeobj__37;
-static PyObject *__pyx_codeobj__39;
-static PyObject *__pyx_codeobj__41;
-static PyObject *__pyx_codeobj__43;
-static PyObject *__pyx_codeobj__45;
+static PyObject *__pyx_tuple__27;
+static PyObject *__pyx_tuple__29;
+static PyObject *__pyx_tuple__31;
+static PyObject *__pyx_tuple__33;
+static PyObject *__pyx_tuple__35;
+static PyObject *__pyx_tuple__37;
+static PyObject *__pyx_tuple__39;
+static PyObject *__pyx_codeobj__22;
+static PyObject *__pyx_codeobj__24;
+static PyObject *__pyx_codeobj__26;
+static PyObject *__pyx_codeobj__28;
+static PyObject *__pyx_codeobj__30;
+static PyObject *__pyx_codeobj__32;
+static PyObject *__pyx_codeobj__34;
+static PyObject *__pyx_codeobj__36;
+static PyObject *__pyx_codeobj__38;
+static PyObject *__pyx_codeobj__40;
 /* Late includes */
 
 /* "GPy/models/state_space_cython.pyx":22
@@ -2748,6 +2762,9 @@ static PyObject *__pyx_f_3GPy_6models_18state_space_cython_24Dynamic_Callables_C
   PyObject *__pyx_t_5 = NULL;
   int __pyx_t_6;
   PyObject *__pyx_t_7 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("f_a", 0);
   __pyx_pybuffer_m.pybuffer.buf = NULL;
   __pyx_pybuffer_m.refcount = 0;
@@ -2771,11 +2788,10 @@ static PyObject *__pyx_f_3GPy_6models_18state_space_cython_24Dynamic_Callables_C
   if (unlikely(__pyx_skip_dispatch)) ;
   /* Check if overridden in Python */
   else if (unlikely((Py_TYPE(((PyObject *)__pyx_v_self))->tp_dictoffset != 0) || (Py_TYPE(((PyObject *)__pyx_v_self))->tp_flags & (Py_TPFLAGS_IS_ABSTRACT | Py_TPFLAGS_HEAPTYPE)))) {
-    #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP
-    static PY_UINT64_T tp_dict_version = 0, obj_dict_version = 0;
-    if (likely(Py_TYPE(((PyObject *)__pyx_v_self))->tp_dict && tp_dict_version == __PYX_GET_DICT_VERSION(Py_TYPE(((PyObject *)__pyx_v_self))->tp_dict) && (!Py_TYPE(((PyObject *)__pyx_v_self))->tp_dictoffset || obj_dict_version == __PYX_GET_DICT_VERSION(_PyObject_GetDictPtr(((PyObject *)__pyx_v_self))))));
-    else {
-      PY_UINT64_T type_dict_guard = (likely(Py_TYPE(((PyObject *)__pyx_v_self))->tp_dict)) ? __PYX_GET_DICT_VERSION(Py_TYPE(((PyObject *)__pyx_v_self))->tp_dict) : 0;
+    #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP && CYTHON_USE_TYPE_SLOTS
+    static PY_UINT64_T __pyx_tp_dict_version = __PYX_DICT_VERSION_INIT, __pyx_obj_dict_version = __PYX_DICT_VERSION_INIT;
+    if (unlikely(!__Pyx_object_dict_version_matches(((PyObject *)__pyx_v_self), __pyx_tp_dict_version, __pyx_obj_dict_version))) {
+      PY_UINT64_T __pyx_type_dict_guard = __Pyx_get_tp_dict_version(((PyObject *)__pyx_v_self));
       #endif
       __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_f_a); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 22, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
@@ -2839,15 +2855,15 @@ static PyObject *__pyx_f_3GPy_6models_18state_space_cython_24Dynamic_Callables_C
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         goto __pyx_L0;
       }
-      #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP
-      tp_dict_version = likely(Py_TYPE(((PyObject *)__pyx_v_self))->tp_dict) ? __PYX_GET_DICT_VERSION(Py_TYPE(((PyObject *)__pyx_v_self))->tp_dict) : 0;
-      obj_dict_version = likely(Py_TYPE(((PyObject *)__pyx_v_self))->tp_dictoffset) ? __PYX_GET_DICT_VERSION(_PyObject_GetDictPtr(((PyObject *)__pyx_v_self))) : 0;
-      if (unlikely(type_dict_guard != tp_dict_version)) {
-        tp_dict_version = obj_dict_version = 0;
+      #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP && CYTHON_USE_TYPE_SLOTS
+      __pyx_tp_dict_version = __Pyx_get_tp_dict_version(((PyObject *)__pyx_v_self));
+      __pyx_obj_dict_version = __Pyx_get_object_dict_version(((PyObject *)__pyx_v_self));
+      if (unlikely(__pyx_type_dict_guard != __pyx_tp_dict_version)) {
+        __pyx_tp_dict_version = __pyx_obj_dict_version = __PYX_DICT_VERSION_INIT;
       }
       #endif
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP
+      #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP && CYTHON_USE_TYPE_SLOTS
     }
     #endif
   }
@@ -2906,6 +2922,9 @@ static PyObject *__pyx_pw_3GPy_6models_18state_space_cython_24Dynamic_Callables_
   int __pyx_v_k;
   PyArrayObject *__pyx_v_m = 0;
   PyArrayObject *__pyx_v_A = 0;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("f_a (wrapper)", 0);
@@ -2986,6 +3005,9 @@ static PyObject *__pyx_pf_3GPy_6models_18state_space_cython_24Dynamic_Callables_
   PyObject *__pyx_r = NULL;
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-      /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1048
+      /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":957
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+  /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":1016
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+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct_3GPy_6models_18state_space_cython_Measurement_Callables_Cython __pyx_vtable_3GPy_6models_18state_space_cython_Measurement_Callables_Cython;
 
@@ -31505,7 +30562,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_Measurement_Cal
   sizeof(struct __pyx_obj_3GPy_6models_18state_space_cython_Measurement_Callables_Cython), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_3GPy_6models_18state_space_cython_Measurement_Callables_Cython, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -31555,6 +30617,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_Measurement_Cal
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct_3GPy_6models_18state_space_cython_R_handling_Cython __pyx_vtable_3GPy_6models_18state_space_cython_R_handling_Cython;
 
@@ -31643,7 +30711,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_R_handling_Cyth
   sizeof(struct __pyx_obj_3GPy_6models_18state_space_cython_R_handling_Cython), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_3GPy_6models_18state_space_cython_R_handling_Cython, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -31693,6 +30766,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_R_handling_Cyth
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct_3GPy_6models_18state_space_cython_Std_Measurement_Callables_Cython __pyx_vtable_3GPy_6models_18state_space_cython_Std_Measurement_Callables_Cython;
 
@@ -31762,7 +30841,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_Std_Measurement
   sizeof(struct __pyx_obj_3GPy_6models_18state_space_cython_Std_Measurement_Callables_Cython), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_3GPy_6models_18state_space_cython_Std_Measurement_Callables_Cython, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -31812,6 +30896,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_Std_Measurement
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct_3GPy_6models_18state_space_cython_Q_handling_Cython __pyx_vtable_3GPy_6models_18state_space_cython_Q_handling_Cython;
 
@@ -31900,7 +30990,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_Q_handling_Cyth
   sizeof(struct __pyx_obj_3GPy_6models_18state_space_cython_Q_handling_Cython), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_3GPy_6models_18state_space_cython_Q_handling_Cython, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -31950,6 +31045,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_Q_handling_Cyth
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct_3GPy_6models_18state_space_cython_Std_Dynamic_Callables_Cython __pyx_vtable_3GPy_6models_18state_space_cython_Std_Dynamic_Callables_Cython;
 
@@ -32020,7 +31121,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_Std_Dynamic_Cal
   sizeof(struct __pyx_obj_3GPy_6models_18state_space_cython_Std_Dynamic_Callables_Cython), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_3GPy_6models_18state_space_cython_Std_Dynamic_Callables_Cython, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -32070,6 +31176,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_Std_Dynamic_Cal
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct_3GPy_6models_18state_space_cython_AQcompute_batch_Cython __pyx_vtable_3GPy_6models_18state_space_cython_AQcompute_batch_Cython;
 
@@ -32176,7 +31288,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_AQcompute_batch
   sizeof(struct __pyx_obj_3GPy_6models_18state_space_cython_AQcompute_batch_Cython), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_3GPy_6models_18state_space_cython_AQcompute_batch_Cython, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -32226,6 +31343,12 @@ static PyTypeObject __pyx_type_3GPy_6models_18state_space_cython_AQcompute_batch
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 
 static PyMethodDef __pyx_methods[] = {
@@ -32282,8 +31405,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_DTYPE, __pyx_k_DTYPE, sizeof(__pyx_k_DTYPE), 0, 0, 1, 1},
   {&__pyx_n_s_DTYPE_int, __pyx_k_DTYPE_int, sizeof(__pyx_k_DTYPE_int), 0, 0, 1, 1},
   {&__pyx_n_s_Dynamic_Callables_Cython, __pyx_k_Dynamic_Callables_Cython, sizeof(__pyx_k_Dynamic_Callables_Cython), 0, 0, 1, 1},
-  {&__pyx_kp_u_Format_string_allocated_too_shor, __pyx_k_Format_string_allocated_too_shor, sizeof(__pyx_k_Format_string_allocated_too_shor), 0, 1, 0, 0},
-  {&__pyx_kp_u_Format_string_allocated_too_shor_2, __pyx_k_Format_string_allocated_too_shor_2, sizeof(__pyx_k_Format_string_allocated_too_shor_2), 0, 1, 0, 0},
   {&__pyx_n_s_GPy_models_state_space_cython, __pyx_k_GPy_models_state_space_cython, sizeof(__pyx_k_GPy_models_state_space_cython), 0, 0, 1, 1},
   {&__pyx_kp_s_GPy_models_state_space_cython_py, __pyx_k_GPy_models_state_space_cython_py, sizeof(__pyx_k_GPy_models_state_space_cython_py), 0, 0, 1, 0},
   {&__pyx_n_s_H, __pyx_k_H, sizeof(__pyx_k_H), 0, 0, 1, 1},
@@ -32303,7 +31424,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_Measurement_dimension_larger_the, __pyx_k_Measurement_dimension_larger_the, sizeof(__pyx_k_Measurement_dimension_larger_the), 0, 0, 1, 0},
   {&__pyx_kp_s_Nan_measurements_are_currently_n, __pyx_k_Nan_measurements_are_currently_n, sizeof(__pyx_k_Nan_measurements_are_currently_n), 0, 0, 1, 0},
   {&__pyx_kp_s_Nan_values_in_likelihood_update, __pyx_k_Nan_values_in_likelihood_update, sizeof(__pyx_k_Nan_values_in_likelihood_update), 0, 0, 1, 0},
-  {&__pyx_kp_u_Non_native_byte_order_not_suppor, __pyx_k_Non_native_byte_order_not_suppor, sizeof(__pyx_k_Non_native_byte_order_not_suppor), 0, 1, 0, 0},
   {&__pyx_n_s_NotImplemented, __pyx_k_NotImplemented, sizeof(__pyx_k_NotImplemented), 0, 0, 1, 1},
   {&__pyx_n_s_P, __pyx_k_P, sizeof(__pyx_k_P), 0, 0, 1, 1},
   {&__pyx_n_s_P_init, __pyx_k_P_init, sizeof(__pyx_k_P_init), 0, 0, 1, 1},
@@ -32327,7 +31447,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_R_isrk, __pyx_k_R_isrk, sizeof(__pyx_k_R_isrk), 0, 0, 1, 1},
   {&__pyx_n_s_R_time_var_index, __pyx_k_R_time_var_index, sizeof(__pyx_k_R_time_var_index), 0, 0, 1, 1},
   {&__pyx_n_s_Rk, __pyx_k_Rk, sizeof(__pyx_k_Rk), 0, 0, 1, 1},
-  {&__pyx_n_s_RuntimeError, __pyx_k_RuntimeError, sizeof(__pyx_k_RuntimeError), 0, 0, 1, 1},
   {&__pyx_n_s_S, __pyx_k_S, sizeof(__pyx_k_S), 0, 0, 1, 1},
   {&__pyx_n_s_S_new, __pyx_k_S_new, sizeof(__pyx_k_S_new), 0, 0, 1, 1},
   {&__pyx_n_s_S_old, __pyx_k_S_old, sizeof(__pyx_k_S_old), 0, 0, 1, 1},
@@ -32431,8 +31550,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_measurement_dim_gt_one, __pyx_k_measurement_dim_gt_one, sizeof(__pyx_k_measurement_dim_gt_one), 0, 0, 1, 1},
   {&__pyx_n_s_name, __pyx_k_name, sizeof(__pyx_k_name), 0, 0, 1, 1},
   {&__pyx_n_s_nbytes, __pyx_k_nbytes, sizeof(__pyx_k_nbytes), 0, 0, 1, 1},
-  {&__pyx_kp_u_ndarray_is_not_C_contiguous, __pyx_k_ndarray_is_not_C_contiguous, sizeof(__pyx_k_ndarray_is_not_C_contiguous), 0, 1, 0, 0},
-  {&__pyx_kp_u_ndarray_is_not_Fortran_contiguou, __pyx_k_ndarray_is_not_Fortran_contiguou, sizeof(__pyx_k_ndarray_is_not_Fortran_contiguou), 0, 1, 0, 0},
   {&__pyx_n_s_new, __pyx_k_new, sizeof(__pyx_k_new), 0, 0, 1, 1},
   {&__pyx_n_s_np, __pyx_k_np, sizeof(__pyx_k_np), 0, 0, 1, 1},
   {&__pyx_n_s_numpy, __pyx_k_numpy, sizeof(__pyx_k_numpy), 0, 0, 1, 1},
@@ -32499,7 +31616,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_unique, __pyx_k_unique, sizeof(__pyx_k_unique), 0, 0, 1, 1},
   {&__pyx_n_s_unique_Q_number, __pyx_k_unique_Q_number, sizeof(__pyx_k_unique_Q_number), 0, 0, 1, 1},
   {&__pyx_n_s_unique_R_number, __pyx_k_unique_R_number, sizeof(__pyx_k_unique_R_number), 0, 0, 1, 1},
-  {&__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_k_unknown_dtype_code_in_numpy_pxd, sizeof(__pyx_k_unknown_dtype_code_in_numpy_pxd), 0, 1, 0, 0},
   {&__pyx_n_s_update, __pyx_k_update, sizeof(__pyx_k_update), 0, 0, 1, 1},
   {&__pyx_n_s_v, __pyx_k_v, sizeof(__pyx_k_v), 0, 0, 1, 1},
   {&__pyx_n_s_vstack, __pyx_k_vstack, sizeof(__pyx_k_vstack), 0, 0, 1, 1},
@@ -32511,8 +31627,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(0, 124, __pyx_L1_error)
   __pyx_builtin_super = __Pyx_GetBuiltinName(__pyx_n_s_super); if (!__pyx_builtin_super) __PYX_ERR(0, 177, __pyx_L1_error)
   __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 664, __pyx_L1_error)
-  __pyx_builtin_RuntimeError = __Pyx_GetBuiltinName(__pyx_n_s_RuntimeError); if (!__pyx_builtin_RuntimeError) __PYX_ERR(2, 856, __pyx_L1_error)
-  __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(2, 1038, __pyx_L1_error)
+  __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(2, 947, __pyx_L1_error)
   return 0;
   __pyx_L1_error:;
   return -1;
@@ -32720,82 +31835,27 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__18);
   __Pyx_GIVEREF(__pyx_tuple__18);
 
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
- * 
- *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
- */
-  __pyx_tuple__19 = PyTuple_Pack(1, __pyx_kp_u_ndarray_is_not_C_contiguous); if (unlikely(!__pyx_tuple__19)) __PYX_ERR(2, 272, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__19);
-  __Pyx_GIVEREF(__pyx_tuple__19);
-
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
- *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
- * 
- *             info.buf = PyArray_DATA(self)
- */
-  __pyx_tuple__20 = PyTuple_Pack(1, __pyx_kp_u_ndarray_is_not_Fortran_contiguou); if (unlikely(!__pyx_tuple__20)) __PYX_ERR(2, 276, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__20);
-  __Pyx_GIVEREF(__pyx_tuple__20);
-
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
- *                 if ((descr.byteorder == c'>' and little_endian) or
- *                     (descr.byteorder == c'<' and not little_endian)):
- *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
- *                 if   t == NPY_BYTE:        f = "b"
- *                 elif t == NPY_UBYTE:       f = "B"
- */
-  __pyx_tuple__21 = PyTuple_Pack(1, __pyx_kp_u_Non_native_byte_order_not_suppor); if (unlikely(!__pyx_tuple__21)) __PYX_ERR(2, 306, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__21);
-  __Pyx_GIVEREF(__pyx_tuple__21);
-
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
- * 
- *         if (end - f) - <int>(new_offset - offset[0]) < 15:
- *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
- * 
- *         if ((child.byteorder == c'>' and little_endian) or
- */
-  __pyx_tuple__22 = PyTuple_Pack(1, __pyx_kp_u_Format_string_allocated_too_shor); if (unlikely(!__pyx_tuple__22)) __PYX_ERR(2, 856, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__22);
-  __Pyx_GIVEREF(__pyx_tuple__22);
-
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
- *             t = child.type_num
- *             if end - f < 5:
- *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
- * 
- *             # Until ticket #99 is fixed, use integers to avoid warnings
- */
-  __pyx_tuple__23 = PyTuple_Pack(1, __pyx_kp_u_Format_string_allocated_too_shor_2); if (unlikely(!__pyx_tuple__23)) __PYX_ERR(2, 880, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__23);
-  __Pyx_GIVEREF(__pyx_tuple__23);
-
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
- *         _import_array()
+  /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":947
+ *         __pyx_import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
  * 
  * cdef inline int import_umath() except -1:
  */
-  __pyx_tuple__24 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_multiarray_failed_to); if (unlikely(!__pyx_tuple__24)) __PYX_ERR(2, 1038, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__24);
-  __Pyx_GIVEREF(__pyx_tuple__24);
+  __pyx_tuple__19 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_multiarray_failed_to); if (unlikely(!__pyx_tuple__19)) __PYX_ERR(2, 947, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_tuple__19);
+  __Pyx_GIVEREF(__pyx_tuple__19);
 
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+  /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":953
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
  * 
  * cdef inline int import_ufunc() except -1:
  */
-  __pyx_tuple__25 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_umath_failed_to_impor); if (unlikely(!__pyx_tuple__25)) __PYX_ERR(2, 1044, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__25);
-  __Pyx_GIVEREF(__pyx_tuple__25);
+  __pyx_tuple__20 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_umath_failed_to_impor); if (unlikely(!__pyx_tuple__20)) __PYX_ERR(2, 953, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_tuple__20);
+  __Pyx_GIVEREF(__pyx_tuple__20);
 
   /* "GPy/models/state_space_cython.pyx":547
  * 
@@ -32804,10 +31864,10 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
  *                                 Dynamic_Callables_Cython p_dynamic_callables,
  *                                 bint calc_grad_log_likelihood=False,
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 #else
-#ifdef CYTHON_NO_PYINIT_EXPORT
-#define __Pyx_PyMODINIT_FUNC PyObject *
+#ifdef __cplusplus
+#define __Pyx_PyMODINIT_FUNC extern "C" PyObject *
 #else
-#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
+#define __Pyx_PyMODINIT_FUNC PyObject *
 #endif
 #endif
 
@@ -33228,6 +32330,9 @@ static CYTHON_SMALL_CODE int __pyx_pymod_exec_state_space_cython(PyObject *__pyx
 {
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannyDeclarations
   #if CYTHON_PEP489_MULTI_PHASE_INIT
   if (__pyx_m) {
@@ -33295,10 +32400,9 @@ if (!__Pyx_RefNanny) {
   __pyx_d = PyModule_GetDict(__pyx_m); if (unlikely(!__pyx_d)) __PYX_ERR(0, 1, __pyx_L1_error)
   Py_INCREF(__pyx_d);
   __pyx_b = PyImport_AddModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_b)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
-  #if CYTHON_COMPILING_IN_PYPY
   Py_INCREF(__pyx_b);
-  #endif
+  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
+  Py_INCREF(__pyx_cython_runtime);
   if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
   /*--- Initialize various global constants etc. ---*/
   if (__Pyx_InitGlobals() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
@@ -33324,8 +32428,8 @@ if (!__Pyx_RefNanny) {
   (void)__Pyx_modinit_global_init_code();
   (void)__Pyx_modinit_variable_export_code();
   (void)__Pyx_modinit_function_export_code();
-  if (unlikely(__Pyx_modinit_type_init_code() != 0)) goto __pyx_L1_error;
-  if (unlikely(__Pyx_modinit_type_import_code() != 0)) goto __pyx_L1_error;
+  if (unlikely(__Pyx_modinit_type_init_code() < 0)) __PYX_ERR(0, 1, __pyx_L1_error)
+  if (unlikely(__Pyx_modinit_type_import_code() < 0)) __PYX_ERR(0, 1, __pyx_L1_error)
   (void)__Pyx_modinit_variable_import_code();
   (void)__Pyx_modinit_function_import_code();
   /*--- Execution code ---*/
@@ -33509,12 +32613,12 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_1) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
- *         raise ImportError("numpy.core.umath failed to import")
+  /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":1016
  * 
- * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
- *     try:
- *         _import_umath()
+ * 
+ * cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) nogil:             # <<<<<<<<<<<<<<
+ *     """
+ *     returns the unit part of the dtype for a numpy datetime64 object.
  */
 
   /*--- Wrapped vars code ---*/
@@ -33634,7 +32738,7 @@ static int __Pyx_BufFmt_ParseNumber(const char** ts) {
       return -1;
     } else {
         count = *t++ - '0';
-        while (*t >= '0' && *t < '9') {
+        while (*t >= '0' && *t <= '9') {
             count *= 10;
             count += *t++ - '0';
         }
@@ -33655,6 +32759,7 @@ static void __Pyx_BufFmt_RaiseUnexpectedChar(char ch) {
 }
 static const char* __Pyx_BufFmt_DescribeTypeChar(char ch, int is_complex) {
   switch (ch) {
+    case '?': return "'bool'";
     case 'c': return "'char'";
     case 'b': return "'signed char'";
     case 'B': return "'unsigned char'";
@@ -33697,7 +32802,7 @@ static size_t __Pyx_BufFmt_TypeCharToStandardSize(char ch, int is_complex) {
 }
 static size_t __Pyx_BufFmt_TypeCharToNativeSize(char ch, int is_complex) {
   switch (ch) {
-    case 'c': case 'b': case 'B': case 's': case 'p': return 1;
+    case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
     case 'h': case 'H': return sizeof(short);
     case 'i': case 'I': return sizeof(int);
     case 'l': case 'L': return sizeof(long);
@@ -33781,7 +32886,7 @@ static char __Pyx_BufFmt_TypeCharToGroup(char ch, int is_complex) {
     case 'b': case 'h': case 'i':
     case 'l': case 'q': case 's': case 'p':
         return 'I';
-    case 'B': case 'H': case 'I': case 'L': case 'Q':
+    case '?': case 'B': case 'H': case 'I': case 'L': case 'Q':
         return 'U';
     case 'f': case 'd': case 'g':
         return (is_complex ? 'C' : 'R');
@@ -33925,9 +33030,7 @@ static PyObject *
 __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
 {
     const char *ts = *tsp;
-    int i = 0, number;
-    int ndim = ctx->head->field->type->ndim;
-;
+    int i = 0, number, ndim;
     ++ts;
     if (ctx->new_count != 1) {
         PyErr_SetString(PyExc_ValueError,
@@ -33935,6 +33038,7 @@ __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
         return NULL;
     }
     if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
+    ndim = ctx->head->field->type->ndim;
     while (*ts && *ts != ')') {
         switch (*ts) {
             case ' ': case '\f': case '\r': case '\n': case '\t': case '\v':  continue;
@@ -34060,12 +33164,12 @@ static const char* __Pyx_BufFmt_CheckString(__Pyx_BufFmt_Context* ctx, const cha
           return NULL;
         }
         CYTHON_FALLTHROUGH;
-      case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
+      case '?': case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
       case 'l': case 'L': case 'q': case 'Q':
       case 'f': case 'd': case 'g':
       case 'O': case 'p':
-        if (ctx->enc_type == *ts && got_Z == ctx->is_complex &&
-            ctx->enc_packmode == ctx->new_packmode) {
+        if ((ctx->enc_type == *ts) && (got_Z == ctx->is_complex) &&
+            (ctx->enc_packmode == ctx->new_packmode) && (!ctx->is_valid_array)) {
           ctx->enc_count += ctx->new_count;
           ctx->new_count = 1;
           got_Z = 0;
@@ -34134,7 +33238,7 @@ static int __Pyx__GetBufferAndValidate(
     __Pyx_BufFmt_Init(&ctx, stack, dtype);
     if (!__Pyx_BufFmt_CheckString(&ctx, buf->format)) goto fail;
   }
-  if (unlikely((unsigned)buf->itemsize != dtype->size)) {
+  if (unlikely((size_t)buf->itemsize != dtype->size)) {
     PyErr_Format(PyExc_ValueError,
       "Item size of buffer (%" CYTHON_FORMAT_SSIZE_T "d byte%s) does not match size of '%s' (%" CYTHON_FORMAT_SSIZE_T "d byte%s)",
       buf->itemsize, (buf->itemsize > 1) ? "s" : "",
@@ -34148,6 +33252,32 @@ fail:;
   return -1;
 }
 
+/* PyDictVersioning */
+  #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
+    PyObject **dictptr = NULL;
+    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
+    if (offset) {
+#if CYTHON_COMPILING_IN_CPYTHON
+        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
+#else
+        dictptr = _PyObject_GetDictPtr(obj);
+#endif
+    }
+    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
+}
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
+        return 0;
+    return obj_dict_version == __Pyx_get_object_dict_version(obj);
+}
+#endif
+
 /* PyFunctionFastCall */
   #if CYTHON_FAST_PYCALL
 static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
@@ -34179,7 +33309,7 @@ static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args
     return result;
 }
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
     PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
     PyObject *globals = PyFunction_GET_GLOBALS(func);
     PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
@@ -34250,12 +33380,12 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
     }
 #if PY_MAJOR_VERSION >= 3
     result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, kwdefs, closure);
 #else
     result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, closure);
 #endif
@@ -34555,7 +33685,7 @@ bad:
         }
         name = first_kw_arg;
         #if PY_MAJOR_VERSION < 3
-        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+        if (likely(PyString_Check(key))) {
             while (*name) {
                 if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
                         && _PyString_Eq(**name, key)) {
@@ -34582,7 +33712,7 @@ bad:
             while (*name) {
                 int cmp = (**name == key) ? 0 :
                 #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                 #endif
                     PyUnicode_Compare(**name, key);
                 if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -34598,7 +33728,7 @@ bad:
                 while (argname != first_kw_arg) {
                     int cmp = (**argname == key) ? 0 :
                     #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                     #endif
                         PyUnicode_Compare(**argname, key);
                     if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -35117,15 +34247,23 @@ static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObje
 
 /* PyFloatBinop */
   #if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyFloat_DivideCObj(PyObject *op1, PyObject *op2, double floatval, CYTHON_UNUSED int inplace) {
+#define __Pyx_PyFloat_DivideCObj_ZeroDivisionError(operand) if (unlikely(zerodivision_check && ((operand) == 0))) {\
+    PyErr_SetString(PyExc_ZeroDivisionError, "float division by zero");\
+    return NULL;\
+}
+static PyObject* __Pyx_PyFloat_DivideCObj(PyObject *op1, PyObject *op2, double floatval, int inplace, int zerodivision_check) {
     const double a = floatval;
     double b, result;
+    (void)inplace;
+    (void)zerodivision_check;
     if (likely(PyFloat_CheckExact(op2))) {
         b = PyFloat_AS_DOUBLE(op2);
+        __Pyx_PyFloat_DivideCObj_ZeroDivisionError(b)
     } else
     #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_CheckExact(op2))) {
         b = (double) PyInt_AS_LONG(op2);
+        __Pyx_PyFloat_DivideCObj_ZeroDivisionError(b)
     } else
     #endif
     if (likely(PyLong_CheckExact(op2))) {
@@ -35133,7 +34271,7 @@ static PyObject* __Pyx_PyFloat_DivideCObj(PyObject *op1, PyObject *op2, double f
         const digit* digits = ((PyLongObject*)op2)->ob_digit;
         const Py_ssize_t size = Py_SIZE(op2);
         switch (size) {
-            case  0: b = 0.0; break;
+            case  0: __Pyx_PyFloat_DivideCObj_ZeroDivisionError(0) break;
             case -1: b = -(double) digits[0]; break;
             case  1: b = (double) digits[0]; break;
             case -2:
@@ -35175,10 +34313,12 @@ static PyObject* __Pyx_PyFloat_DivideCObj(PyObject *op1, PyObject *op2, double f
         #endif
             b = PyLong_AsDouble(op2);
             if (unlikely(b == -1.0 && PyErr_Occurred())) return NULL;
+            __Pyx_PyFloat_DivideCObj_ZeroDivisionError(b)
         }
     } else {
         return (inplace ? __Pyx_PyNumber_InPlaceDivide(op1, op2) : __Pyx_PyNumber_Divide(op1, op2));
     }
+        __Pyx_PyFloat_DivideCObj_ZeroDivisionError(b)
         PyFPE_START_PROTECT("divide", return NULL)
         result = a / b;
         PyFPE_END_PROTECT(result)
@@ -35216,7 +34356,7 @@ static PyObject* __Pyx_PyFloat_DivideCObj(PyObject *op1, PyObject *op2, double f
     {
         #if PY_MAJOR_VERSION >= 3
         if (level == -1) {
-            if (strchr(__Pyx_MODULE_NAME, '.')) {
+            if ((1) && (strchr(__Pyx_MODULE_NAME, '.'))) {
                 module = PyImport_ImportModuleLevelObject(
                     name, global_dict, empty_dict, list, 1);
                 if (!module) {
@@ -35283,11 +34423,6 @@ bad:
     }
 }
 
-/* RaiseNoneIterError */
-    static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
-}
-
 /* GetTopmostException */
     #if CYTHON_USE_EXC_INFO_STACK
 static _PyErr_StackItem *
@@ -35509,6 +34644,28 @@ bad:
     return -1;
 }
 
+/* PyObjectGetAttrStrNoError */
+    static void __Pyx_PyObject_GetAttrStr_ClearAttributeError(void) {
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    if (likely(__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
+        __Pyx_PyErr_Clear();
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_TYPE_SLOTS && PY_VERSION_HEX >= 0x030700B1
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro == PyObject_GenericGetAttr)) {
+        return _PyObject_GenericGetAttrWithDict(obj, attr_name, NULL, 1);
+    }
+#endif
+    result = __Pyx_PyObject_GetAttrStr(obj, attr_name);
+    if (unlikely(!result)) {
+        __Pyx_PyObject_GetAttrStr_ClearAttributeError();
+    }
+    return result;
+}
+
 /* SetupReduce */
     static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
   int ret;
@@ -35536,43 +34693,51 @@ static int __Pyx_setup_reduce(PyObject* type_obj) {
     PyObject *setstate = NULL;
     PyObject *setstate_cython = NULL;
 #if CYTHON_USE_PYTYPE_LOOKUP
-    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto GOOD;
+    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
 #else
-    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto GOOD;
+    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
 #endif
 #if CYTHON_USE_PYTYPE_LOOKUP
-    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
+    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
 #else
-    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
+    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
 #endif
-    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto BAD;
+    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto __PYX_BAD;
     if (reduce_ex == object_reduce_ex) {
 #if CYTHON_USE_PYTYPE_LOOKUP
-        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
+        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
 #else
-        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
+        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
 #endif
-        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto BAD;
+        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto __PYX_BAD;
         if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
-            reduce_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_cython); if (unlikely(!reduce_cython)) goto BAD;
-            ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto BAD;
-            ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto BAD;
+            reduce_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_reduce_cython);
+            if (likely(reduce_cython)) {
+                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+            } else if (reduce == object_reduce || PyErr_Occurred()) {
+                goto __PYX_BAD;
+            }
             setstate = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate);
             if (!setstate) PyErr_Clear();
             if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
-                setstate_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate_cython); if (unlikely(!setstate_cython)) goto BAD;
-                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto BAD;
-                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto BAD;
+                setstate_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate_cython);
+                if (likely(setstate_cython)) {
+                    ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                    ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                } else if (!setstate || PyErr_Occurred()) {
+                    goto __PYX_BAD;
+                }
             }
             PyType_Modified((PyTypeObject*)type_obj);
         }
     }
-    goto GOOD;
-BAD:
+    goto __PYX_GOOD;
+__PYX_BAD:
     if (!PyErr_Occurred())
         PyErr_Format(PyExc_RuntimeError, "Unable to initialize pickling for %s", ((PyTypeObject*)type_obj)->tp_name);
     ret = -1;
-GOOD:
+__PYX_GOOD:
 #if !CYTHON_USE_PYTYPE_LOOKUP
     Py_XDECREF(object_reduce);
     Py_XDECREF(object_reduce_ex);
@@ -35648,7 +34813,7 @@ bad:
 
 /* CLineInTraceback */
     #ifndef CYTHON_CLINE_IN_TRACEBACK
-static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
+static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int c_line) {
     PyObject *use_cline;
     PyObject *ptype, *pvalue, *ptraceback;
 #if CYTHON_COMPILING_IN_CPYTHON
@@ -35752,7 +34917,7 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
     if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
         int new_max = __pyx_code_cache.max_count + 64;
         entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
-            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+            __pyx_code_cache.entries, ((size_t)new_max) * sizeof(__Pyx_CodeObjectCacheEntry));
         if (unlikely(!entries)) {
             return;
         }
@@ -35909,7 +35074,6 @@ bad:
 #if PY_MAJOR_VERSION < 3
 static int __Pyx_GetBuffer(PyObject *obj, Py_buffer *view, int flags) {
     if (PyObject_CheckBuffer(obj)) return PyObject_GetBuffer(obj, view, flags);
-        if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) return __pyx_pw_5numpy_7ndarray_1__getbuffer__(obj, view, flags);
     PyErr_Format(PyExc_TypeError, "'%.200s' does not have the buffer interface", Py_TYPE(obj)->tp_name);
     return -1;
 }
@@ -35921,7 +35085,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
         return;
     }
     if ((0)) {}
-        else if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) __pyx_pw_5numpy_7ndarray_3__releasebuffer__(obj, view);
     view->obj = NULL;
     Py_DECREF(obj);
 }
@@ -36043,13 +35206,13 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                 return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 float r = b.imag / b.real;
-                float s = 1.0 / (b.real + b.imag * r);
+                float s = (float)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_float_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             float r = b.real / b.imag;
-            float s = 1.0 / (b.imag + b.real * r);
+            float s = (float)(1.0) / (b.imag + b.real * r);
             return __pyx_t_float_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -36107,7 +35270,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_float(a, a);
                         return __Pyx_c_prod_float(a, a);
                     case 3:
                         z = __Pyx_c_prod_float(a, a);
@@ -36129,7 +35291,7 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2f(0, -1);
+                    theta = atan2f(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_float(a);
@@ -36198,13 +35360,13 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                 return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 double r = b.imag / b.real;
-                double s = 1.0 / (b.real + b.imag * r);
+                double s = (double)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_double_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             double r = b.real / b.imag;
-            double s = 1.0 / (b.imag + b.real * r);
+            double s = (double)(1.0) / (b.imag + b.real * r);
             return __pyx_t_double_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -36262,7 +35424,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_double(a, a);
                         return __Pyx_c_prod_double(a, a);
                     case 3:
                         z = __Pyx_c_prod_double(a, a);
@@ -36284,7 +35445,7 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2(0, -1);
+                    theta = atan2(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_double(a);
@@ -36300,37 +35461,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
     #endif
 #endif
 
-/* CIntToPy */
-    static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value) {
-    const enum NPY_TYPES neg_one = (enum NPY_TYPES) ((enum NPY_TYPES) 0 - (enum NPY_TYPES) 1), const_zero = (enum NPY_TYPES) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(enum NPY_TYPES) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(enum NPY_TYPES) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(enum NPY_TYPES),
-                                     little, !is_unsigned);
-    }
-}
-
 /* CIntFromPy */
     static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
diff --git a/GPy/plotting/__init__.py b/GPy/plotting/__init__.py
index 8c680caf..8c70ef84 100644
--- a/GPy/plotting/__init__.py
+++ b/GPy/plotting/__init__.py
@@ -1,3 +1,19 @@
+"""Introduction
+^^^^^^^^^^^^
+
+:py:class:`GPy.plotting` effectively extends models based on
+:py:class:`GPy.core.gp.GP` (and other classes) by adding methods to
+plot useful charts. 'matplotlib', 'plotly' (online) and 'plotly'
+(offline) are supported. The methods in :py:class:`GPy.plotting` (and
+child classes :py:class:`GPy.plotting.gpy_plot` and
+:py:class:`GPy.plotting.matplot_dep`) are not intended to be called
+directly, but rather are 'injected' into other classes (notably
+:py:class:`GPy.core.gp.GP`). Documentation describing plots is best
+found associated with the model being plotted
+e.g. :py:class:`GPy.core.gp.GP.plot_confidence`.
+
+"""
+
 # Copyright (c) 2014, GPy authors (see AUTHORS.txt).
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
 current_lib = [None]
diff --git a/GPy/plotting/gpy_plot/latent_plots.py b/GPy/plotting/gpy_plot/latent_plots.py
index f76fda1c..a749f0c1 100644
--- a/GPy/plotting/gpy_plot/latent_plots.py
+++ b/GPy/plotting/gpy_plot/latent_plots.py
@@ -89,7 +89,8 @@ def plot_latent_scatter(self, labels=None,
     Plot a scatter plot of the latent space.
 
     :param array-like labels: a label for each data point (row) of the inputs
-    :param (int, int) which_indices: which input dimensions to plot against each other
+    :param which_indices: which input dimensions to plot against each other
+    :type which_indices: (int, int)
     :param bool legend: whether to plot the legend on the figure
     :param plot_limits: the plot limits for the plot
     :type plot_limits: (xmin, xmax, ymin, ymax) or ((xmin, xmax), (ymin, ymax))
@@ -174,7 +175,8 @@ def plot_magnification(self, labels=None, which_indices=None,
     density of the GP as a gray scale.
 
     :param array-like labels: a label for each data point (row) of the inputs
-    :param (int, int) which_indices: which input dimensions to plot against each other
+    :param which_indices: which input dimensions to plot against each other
+    :type which_indices: (int, int)
     :param int resolution: the resolution at which we predict the magnification factor
     :param str marker: markers to use - cycle if more labels then markers are given
     :param bool legend: whether to plot the legend on the figure
@@ -183,7 +185,8 @@ def plot_magnification(self, labels=None, which_indices=None,
     :param bool updates: if possible, make interactive updates using the specific library you are using
     :param bool mean: use the mean of the Wishart embedding for the magnification factor
     :param bool covariance: use the covariance of the Wishart embedding for the magnification factor
-    :param :py:class:`~GPy.kern.Kern` kern: the kernel to use for prediction
+    :param kern: the kernel to use for prediction
+    :type kern: :py:class:`~GPy.kern.Kern`
     :param int num_samples: the number of samples to plot maximally. We do a stratified subsample from the labels, if the number of samples (in X) is higher then num_samples.
     :param imshow_kwargs: the kwargs for the imshow (magnification factor)
     :param kwargs: the kwargs for the scatter plots
@@ -248,13 +251,15 @@ def plot_latent(self, labels=None, which_indices=None,
     scatter plot of the input dimemsions selected by which_indices.
 
     :param array-like labels: a label for each data point (row) of the inputs
-    :param (int, int) which_indices: which input dimensions to plot against each other
+    :param which_indices: which input dimensions to plot against each other
+    :type which_indices: (int, int)
     :param int resolution: the resolution at which we predict the magnification factor
     :param bool legend: whether to plot the legend on the figure
     :param plot_limits: the plot limits for the plot
     :type plot_limits: (xmin, xmax, ymin, ymax) or ((xmin, xmax), (ymin, ymax))
     :param bool updates: if possible, make interactive updates using the specific library you are using
-    :param :py:class:`~GPy.kern.Kern` kern: the kernel to use for prediction
+    :param kern: the kernel to use for prediction
+    :type kern: :py:class:`~GPy.kern.Kern`
     :param str marker: markers to use - cycle if more labels then markers are given
     :param int num_samples: the number of samples to plot maximally. We do a stratified subsample from the labels, if the number of samples (in X) is higher then num_samples.
     :param imshow_kwargs: the kwargs for the imshow (magnification factor)
@@ -316,13 +321,15 @@ def plot_steepest_gradient_map(self, output_labels=None, data_labels=None, which
     scatter plot of the input dimemsions selected by which_indices.
 
     :param array-like labels: a label for each data point (row) of the inputs
-    :param (int, int) which_indices: which input dimensions to plot against each other
+    :param which_indices: which input dimensions to plot against each other
+    :type which_indices: (int, int)
     :param int resolution: the resolution at which we predict the magnification factor
     :param bool legend: whether to plot the legend on the figure, if int plot legend columns on legend
     :param plot_limits: the plot limits for the plot
     :type plot_limits: (xmin, xmax, ymin, ymax) or ((xmin, xmax), (ymin, ymax))
     :param bool updates: if possible, make interactive updates using the specific library you are using
-    :param :py:class:`~GPy.kern.Kern` kern: the kernel to use for prediction
+    :param kern: the kernel to use for prediction
+    :type kern: :py:class:`~GPy.kern.Kern`
     :param str marker: markers to use - cycle if more labels then markers are given
     :param int num_samples: the number of samples to plot maximally. We do a stratified subsample from the labels, if the number of samples (in X) is higher then num_samples.
     :param imshow_kwargs: the kwargs for the imshow (magnification factor)
diff --git a/GPy/plotting/matplot_dep/visualize.py b/GPy/plotting/matplot_dep/visualize.py
index ce95d1ef..d4442dc7 100644
--- a/GPy/plotting/matplot_dep/visualize.py
+++ b/GPy/plotting/matplot_dep/visualize.py
@@ -36,7 +36,7 @@ class vpython_show(data_show):
     """
 
     def __init__(self, vals, scene=None):
-        data_show.__init__(self, vals)
+        super(vpython_show, self).__init__(vals)
         # If no axes are defined, create some.
 
         if scene==None:
@@ -54,7 +54,7 @@ class matplotlib_show(data_show):
     the matplotlib_show class is a base class for all visualization methods that use matplotlib. It is initialized with an axis. If the axis is set to None it creates a figure window.
     """
     def __init__(self, vals, axes=None):
-        data_show.__init__(self, vals)
+        super(matplotlib_show, self).__init__(vals)
         # If no axes are defined, create some.
 
         if axes==None:
@@ -72,7 +72,7 @@ class vector_show(matplotlib_show):
     vector elements alongside their indices.
     """
     def __init__(self, vals, axes=None):
-        matplotlib_show.__init__(self, vals, axes)
+        super(vector_show, self).__init__(vals, axes)
         #assert vals.ndim == 2, "Please give a vector in [n x 1] to plot"
         #assert vals.shape[1] == 1, "only showing a vector in one dimension"
         self.size = vals.size
@@ -102,7 +102,7 @@ class lvm(matplotlib_show):
                 vals = model.X.values
         if len(vals.shape)==1:
             vals = vals[None,:]
-        matplotlib_show.__init__(self, vals, axes=latent_axes)
+        super(lvm, self).__init__(vals, axes=latent_axes)
 
         if isinstance(latent_axes,mpl.axes.Axes):
             self.cid = latent_axes.figure.canvas.mpl_connect('button_press_event', self.on_click)
@@ -198,10 +198,10 @@ class lvm_subplots(lvm):
             if i == self.nplots-1:
                 if self.nplots*2!=Model.input_dim:
                     latent_index = [i*2, i*2]
-                lvm.__init__(self, self.latent_vals, Model, data_visualize, axis, sense_axes, latent_index=latent_index)
+                super(lvm_subplots, self).__init__(self.latent_vals, Model, data_visualize, axis, sense_axes, latent_index=latent_index)
             else:
                 latent_index = [i*2, i*2+1]
-                lvm.__init__(self, self.latent_vals, Model, data_visualize, axis, latent_index=latent_index)
+                super(lvm_subplots, self).__init__(self.latent_vals, Model, data_visualize, axis, latent_index=latent_index)
 
 
 
@@ -223,7 +223,7 @@ class lvm_dimselect(lvm):
         else:
             self.sense_axes = sense_axes
         self.labels = labels
-        lvm.__init__(self,vals,model,data_visualize,latent_axes,sense_axes,latent_index)
+        super(lvm_dimselect, self).__init__(vals,model,data_visualize,latent_axes,sense_axes,latent_index)
         self.show_sensitivities()
         print(self.latent_values)
         print("use left and right mouse buttons to select dimensions")
@@ -286,7 +286,7 @@ class image_show(matplotlib_show):
     :type cmap: matplotlib.cm"""
 
     def __init__(self, vals, axes=None, dimensions=(16,16), transpose=False, order='C', invert=False, scale=False, palette=[], preset_mean=0., preset_std=1., select_image=0, cmap=None):
-        matplotlib_show.__init__(self, vals, axes)
+        super(image_show, self).__init__(vals, axes)
         self.dimensions = dimensions
         self.transpose = transpose
         self.order = order
@@ -352,7 +352,7 @@ class mocap_data_show_vpython(vpython_show):
     """Base class for visualizing motion capture data using visual module."""
 
     def __init__(self, vals, scene=None, connect=None, radius=0.1):
-        vpython_show.__init__(self, vals, scene)
+        super(mocap_data_show_vpython, self).__init__(vals, scene)
         self.radius = radius
         self.connect = connect
         self.process_values()
@@ -412,7 +412,7 @@ class mocap_data_show(matplotlib_show):
         if axes==None:
             fig = plt.figure()
             axes = fig.add_subplot(111, projection='3d', aspect='equal')
-        matplotlib_show.__init__(self, vals, axes)
+        super(mocap_data_show, self).__init__(vals, axes)
 
         self.color = color
         self.connect = connect
@@ -496,7 +496,7 @@ class stick_show(mocap_data_show):
     def __init__(self, vals, connect=None, axes=None):
         if len(vals.shape)==1:
             vals = vals[None,:]
-        mocap_data_show.__init__(self, vals, axes=axes, connect=connect)
+        super(stick_show, self).__init__(vals, axes=axes, connect=connect)
 
     def process_values(self):
         self.vals = self.vals.reshape((3, self.vals.shape[1]/3)).T
@@ -515,7 +515,7 @@ class skeleton_show(mocap_data_show):
         self.skel = skel
         self.padding = padding
         connect = skel.connection_matrix()
-        mocap_data_show.__init__(self, vals, axes=axes, connect=connect, color=color)
+        super(skeleton_show, self).__init__(vals, axes=axes, connect=connect, color=color)
     def process_values(self):
         """Takes a set of angles and converts them to the x,y,z coordinates in the internal prepresentation of the class, ready for plotting.
 
diff --git a/GPy/testing/gp_tests.py b/GPy/testing/gp_tests.py
index 97e3718d..1f44304d 100644
--- a/GPy/testing/gp_tests.py
+++ b/GPy/testing/gp_tests.py
@@ -28,11 +28,14 @@ class Test(unittest.TestCase):
         Xnew = NormalPosterior(m.X.mean[:10].copy(), m.X.variance[:10].copy())
         m.set_XY(Xnew, m.Y[:10].copy())
         assert(m.checkgrad())
+
+        assert(m.num_data == m.X.shape[0])
+        assert(m.input_dim == m.X.shape[1])
+
         m.set_XY(X, self.Y)
         mu2, var2 = m.predict(m.X)
         np.testing.assert_allclose(mu, mu2)
         np.testing.assert_allclose(var, var2)
-        
 
     def test_setxy_gplvm(self):
         k = GPy.kern.RBF(1)
@@ -42,6 +45,10 @@ class Test(unittest.TestCase):
         Xnew = X[:10].copy()
         m.set_XY(Xnew, m.Y[:10].copy())
         assert(m.checkgrad())
+
+        assert(m.num_data == m.X.shape[0])
+        assert(m.input_dim == m.X.shape[1])
+
         m.set_XY(X, self.Y)
         mu2, var2 = m.predict(m.X)
         np.testing.assert_allclose(mu, mu2)
@@ -54,6 +61,10 @@ class Test(unittest.TestCase):
         X = m.X.copy()
         m.set_XY(m.X[:10], m.Y[:10])
         assert(m.checkgrad())
+
+        assert(m.num_data == m.X.shape[0])
+        assert(m.input_dim == m.X.shape[1])
+
         m.set_XY(X, self.Y)
         mu2, var2 = m.predict(m.X)
         np.testing.assert_allclose(mu, mu2)
diff --git a/GPy/testing/kernel_tests.py b/GPy/testing/kernel_tests.py
index 9b9cd911..d7140a0b 100644
--- a/GPy/testing/kernel_tests.py
+++ b/GPy/testing/kernel_tests.py
@@ -61,7 +61,7 @@ class Kern_check_dK_dtheta(Kern_check_model):
     respect to parameters.
     """
     def __init__(self, kernel=None, dL_dK=None, X=None, X2=None):
-        Kern_check_model.__init__(self,kernel=kernel,dL_dK=dL_dK, X=X, X2=X2)
+        super(Kern_check_dK_dtheta, self).__init__(kernel=kernel,dL_dK=dL_dK, X=X, X2=X2)
         self.link_parameter(self.kernel)
 
     def parameters_changed(self):
@@ -74,7 +74,7 @@ class Kern_check_dKdiag_dtheta(Kern_check_model):
     kernel with respect to the parameters.
     """
     def __init__(self, kernel=None, dL_dK=None, X=None):
-        Kern_check_model.__init__(self,kernel=kernel,dL_dK=dL_dK, X=X, X2=None)
+        super(Kern_check_dKdiag_dtheta, self).__init__(kernel=kernel,dL_dK=dL_dK, X=X, X2=None)
         self.link_parameter(self.kernel)
 
     def log_likelihood(self):
@@ -86,7 +86,7 @@ class Kern_check_dKdiag_dtheta(Kern_check_model):
 class Kern_check_dK_dX(Kern_check_model):
     """This class allows gradient checks for the gradient of a kernel with respect to X. """
     def __init__(self, kernel=None, dL_dK=None, X=None, X2=None):
-        Kern_check_model.__init__(self,kernel=kernel,dL_dK=dL_dK, X=X, X2=X2)
+        super(Kern_check_dK_dX, self).__init__(kernel=kernel,dL_dK=dL_dK, X=X, X2=X2)
         self.X = Param('X',X)
         self.link_parameter(self.X)
 
@@ -96,7 +96,7 @@ class Kern_check_dK_dX(Kern_check_model):
 class Kern_check_dKdiag_dX(Kern_check_dK_dX):
     """This class allows gradient checks for the gradient of a kernel diagonal with respect to X. """
     def __init__(self, kernel=None, dL_dK=None, X=None, X2=None):
-        Kern_check_dK_dX.__init__(self,kernel=kernel,dL_dK=dL_dK, X=X, X2=None)
+        super(Kern_check_dKdiag_dX, self).__init__(kernel=kernel,dL_dK=dL_dK, X=X, X2=None)
 
     def log_likelihood(self):
         return (np.diag(self.dL_dK)*self.kernel.Kdiag(self.X)).sum()
@@ -107,7 +107,7 @@ class Kern_check_dKdiag_dX(Kern_check_dK_dX):
 class Kern_check_d2K_dXdX(Kern_check_model):
     """This class allows gradient checks for the secondderivative of a kernel with respect to X. """
     def __init__(self, kernel=None, dL_dK=None, X=None, X2=None):
-        Kern_check_model.__init__(self,kernel=kernel,dL_dK=dL_dK, X=X, X2=X2)
+        super(Kern_check_d2K_dXdX, self).__init__(kernel=kernel,dL_dK=dL_dK, X=X, X2=X2)
         self.X = Param('X',X.copy())
         self.link_parameter(self.X)
         self.Xc = X.copy()
@@ -129,7 +129,7 @@ class Kern_check_d2K_dXdX(Kern_check_model):
 class Kern_check_d2Kdiag_dXdX(Kern_check_model):
     """This class allows gradient checks for the second derivative of a kernel with respect to X. """
     def __init__(self, kernel=None, dL_dK=None, X=None):
-        Kern_check_model.__init__(self,kernel=kernel,dL_dK=dL_dK, X=X)
+        super(Kern_check_d2Kdiag_dXdX, self).__init__(kernel=kernel,dL_dK=dL_dK, X=X)
         self.X = Param('X',X)
         self.link_parameter(self.X)
         self.Xc = X.copy()
diff --git a/GPy/testing/model_tests.py b/GPy/testing/model_tests.py
index ca39932d..9ee16f99 100644
--- a/GPy/testing/model_tests.py
+++ b/GPy/testing/model_tests.py
@@ -1168,7 +1168,7 @@ class GradientTests(np.testing.TestCase):
         Y = np.array([[1], [2]])
         m = GPy.models.GPRegression(X1, Y, kernel=k)
 
-        result = m.posterior_covariance_between_points(X1, X2)
+        result = m._raw_posterior_covariance_between_points(X1, X2)
         expected = np.array([[0.4, 2.2], [1.0, 1.0]]) / 3.0
 
         self.assertTrue(np.allclose(result, expected))
@@ -1179,7 +1179,7 @@ class GradientTests(np.testing.TestCase):
         m = _create_missing_data_model(k, Q)
 
         with self.assertRaises(RuntimeError):
-            m.posterior_covariance_between_points(np.array([[1], [2]]), np.array([[3], [4]]))
+            m._raw_posterior_covariance_between_points(np.array([[1], [2]]), np.array([[3], [4]]))
     
     def test_multioutput_model_with_derivative_observations(self):
         f = lambda x: np.sin(x)+0.1*(x-2.)**2-0.005*x**3
@@ -1242,6 +1242,45 @@ class GradientTests(np.testing.TestCase):
         
         self.assertTrue(m.checkgrad())       
 
+
+    def test_predictive_gradients_with_normalizer(self):
+        """
+        Check that model.predictive_gradients returns the gradients of
+        model.predict when normalizer=True 
+        """
+        N, M, Q = 10, 15, 3
+        X = np.random.rand(M,Q)
+        Y = np.random.rand(M,1)
+        x = np.random.rand(N, Q)
+        model = GPy.models.GPRegression(X=X, Y=Y, normalizer=True)
+        from GPy.models import GradientChecker
+        gm = GradientChecker(lambda x: model.predict(x)[0],
+                             lambda x: model.predictive_gradients(x)[0],
+                             x, 'x')
+        gc = GradientChecker(lambda x: model.predict(x)[1],
+                             lambda x: model.predictive_gradients(x)[1],
+                             x, 'x')
+        assert(gm.checkgrad())
+        assert(gc.checkgrad())
+
+
+    def test_posterior_covariance_between_points_with_normalizer(self):
+        """
+        Check that model.posterior_covariance_between_points returns 
+        the covariance from model.predict when normalizer=True
+        """
+        np.random.seed(3)
+        N, M, Q = 10, 15, 3
+        X = np.random.rand(M,Q)
+        Y = np.random.rand(M,1)
+        x = np.random.rand(2, Q)
+        model = GPy.models.GPRegression(X=X, Y=Y, normalizer=True)
+
+        c1 = model.posterior_covariance_between_points(x,x)
+        c2 = model.predict(x, full_cov=True)[1]
+        np.testing.assert_allclose(c1,c2)
+
+
 def _create_missing_data_model(kernel, Q):
     D1, D2, D3, N, num_inducing = 13, 5, 8, 400, 3
     _, _, Ylist = GPy.examples.dimensionality_reduction._simulate_matern(D1, D2, D3, N, num_inducing, False)
diff --git a/GPy/testing/plotting_tests.py b/GPy/testing/plotting_tests.py
index 20032ca6..90dceab0 100644
--- a/GPy/testing/plotting_tests.py
+++ b/GPy/testing/plotting_tests.py
@@ -38,7 +38,7 @@ from nose import SkipTest
 
 try:
     import matplotlib
-    matplotlib.use('agg', warn=False)
+    matplotlib.use('agg')
 except ImportError:
     # matplotlib not installed
     from nose import SkipTest
@@ -87,7 +87,7 @@ def _image_directories():
     result_dir = os.path.join(basedir, 'testresult','.')
     baseline_dir = os.path.join(basedir, 'baseline','.')
     if not os.path.exists(result_dir):
-        cbook.mkdirs(result_dir)
+        os.makedirs(result_dir)
     return baseline_dir, result_dir
 
 baseline_dir, result_dir = _image_directories()
diff --git a/GPy/testing/rv_transformation_tests.py b/GPy/testing/rv_transformation_tests.py
index 9c510aa4..f526d3cf 100644
--- a/GPy/testing/rv_transformation_tests.py
+++ b/GPy/testing/rv_transformation_tests.py
@@ -15,7 +15,7 @@ class TestModel(GPy.core.Model):
     A simple GPy model with one parameter.
     """
     def __init__(self, theta=1.):
-        GPy.core.Model.__init__(self, 'test_model')
+        super(TestModel, self).__init__('test_model')
         theta = GPy.core.Param('theta', theta)
         self.link_parameter(theta)
 
diff --git a/GPy/testing/serialization_tests.py b/GPy/testing/serialization_tests.py
index d147d59c..93ec4b2d 100644
--- a/GPy/testing/serialization_tests.py
+++ b/GPy/testing/serialization_tests.py
@@ -26,14 +26,15 @@ class Test(unittest.TestCase):
         k7 = GPy.kern.Matern32(2, variance=1.0, lengthscale=[1.0,3.0], ARD=True, active_dims = [1,1])
         k8 = GPy.kern.Matern52(2, variance=2.0, lengthscale=[2.0,1.0], ARD=True, active_dims = [1,0])
         k9 = GPy.kern.ExpQuad(2, variance=3.0, lengthscale=[1.0,2.0], ARD=True, active_dims = [0,1])
-        k10 = k1 + k1.copy() + k2 + k3 + k4 + k5 + k6
-        k11 = k1 * k2 * k2.copy() * k3 * k4 * k5
-        k12 = (k1 + k2) * (k3 + k4 + k5)
-        k13 = ((k1 + k2) * k3) + k4 + k5 * k7
-        k14 = ((k1 + k2) * k3) + k4 * k5 + k8
-        k15 = ((k1 * k2) * k3) + k4 * k5 + k8 + k9
+        k10 = GPy.kern.OU(2, variance=2.0, lengthscale=[2.0, 1.0], ARD=True, active_dims=[1, 0])
+        k11 = k1 + k1.copy() + k2 + k3 + k4 + k5 + k6
+        k12 = k1 * k2 * k2.copy() * k3 * k4 * k5
+        k13 = (k1 + k2) * (k3 + k4 + k5)
+        k14 = ((k1 + k2) * k3) + k4 + k5 * k7
+        k15 = ((k1 + k2) * k3) + k4 * k5 + k8 * k10
+        k16 = ((k1 * k2) * k3) + k4 * k5 + k8 + k9
 
-        k_list = [k1,k2,k3,k4,k5,k6,k7,k8,k9,k10,k11,k12,k13,k14,k15]
+        k_list = [k1,k2,k3,k4,k5,k6,k7,k8,k9,k10,k11,k12,k13,k14,k15,k16]
 
         for kk in k_list:
             kk_dict = kk.to_dict()
diff --git a/GPy/util/__init__.py b/GPy/util/__init__.py
index 55b88986..de6df56a 100644
--- a/GPy/util/__init__.py
+++ b/GPy/util/__init__.py
@@ -1,6 +1,12 @@
 # Copyright (c) 2012, GPy authors (see AUTHORS.txt).
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
+"""
+Introduction
+^^^^^^^^^^^^
 
+A variety of utility functions including matrix operations and quick access to test datasets.
+
+"""
 
 from . import linalg
 from . import misc
diff --git a/GPy/util/choleskies_cython.c b/GPy/util/choleskies_cython.c
index eb23de8b..92d28165 100644
--- a/GPy/util/choleskies_cython.c
+++ b/GPy/util/choleskies_cython.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.29.2 */
+/* Generated by Cython 0.29.21 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,8 +7,8 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_29_2"
-#define CYTHON_HEX_VERSION 0x001D02F0
+#define CYTHON_ABI "0_29_21"
+#define CYTHON_HEX_VERSION 0x001D15F0
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -310,8 +310,13 @@
   #define __Pyx_DefaultClassType PyClass_Type
 #else
   #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+#if PY_VERSION_HEX >= 0x030800A4 && PY_VERSION_HEX < 0x030800B2
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, 0, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#else
   #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#endif
   #define __Pyx_DefaultClassType PyType_Type
 #endif
 #ifndef Py_TPFLAGS_CHECKTYPES
@@ -346,26 +351,6 @@
 #else
 #define __Pyx_PyFastCFunction_Check(func) 0
 #endif
-#if CYTHON_USE_DICT_VERSIONS
-#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
-    (version_var) = __PYX_GET_DICT_VERSION(dict);\
-    (cache_var) = (value);
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
-        static PY_UINT64_T __pyx_dict_version = 0;\
-        static PyObject *__pyx_dict_cached_value = NULL;\
-        if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
-            (VAR) = __pyx_dict_cached_value;\
-        } else {\
-            (VAR) = __pyx_dict_cached_value = (LOOKUP);\
-            __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
-        }\
-    }
-#else
-#define __PYX_GET_DICT_VERSION(dict)  (0)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
-#endif
 #if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
   #define PyObject_Malloc(s)   PyMem_Malloc(s)
   #define PyObject_Free(p)     PyMem_Free(p)
@@ -398,7 +383,7 @@
 typedef int Py_tss_t;
 static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
   *key = PyThread_create_key();
-  return 0; // PyThread_create_key reports success always
+  return 0;
 }
 static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
   Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
@@ -421,7 +406,7 @@ static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
 static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   return PyThread_get_key_value(*key);
 }
-#endif // TSS (Thread Specific Storage) API
+#endif
 #if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
 #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
 #else
@@ -450,7 +435,11 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
   #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
   #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
+  #if defined(PyUnicode_IS_READY) && defined(PyUnicode_GET_SIZE)
   #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+  #else
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
+  #endif
 #else
   #define CYTHON_PEP393_ENABLED 0
   #define PyUnicode_1BYTE_KIND  1
@@ -499,8 +488,10 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+#ifndef PyObject_Unicode
   #define PyObject_Unicode             PyObject_Str
 #endif
+#endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
   #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
@@ -511,6 +502,13 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
 #ifndef PySet_CheckExact
   #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
 #endif
+#if PY_VERSION_HEX >= 0x030900A4
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SET_SIZE(obj, size)
+#else
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
+#endif
 #if CYTHON_ASSUME_SAFE_MACROS
   #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
 #else
@@ -550,7 +548,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
 #endif
 #if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? ((void)(klass), PyMethod_New(func, self)) : __Pyx_NewRef(func))
 #else
   #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
 #endif
@@ -591,11 +589,10 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __Pyx_truncl truncl
 #endif
 
-
+#define __PYX_MARK_ERR_POS(f_index, lineno) \
+    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
 #define __PYX_ERR(f_index, lineno, Ln_error) \
-{ \
-  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
-}
+    { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }
 
 #ifndef __PYX_EXTERN_C
   #ifdef __cplusplus
@@ -611,7 +608,13 @@ static CYTHON_INLINE float __PYX_NAN() {
 #include <string.h>
 #include <stdio.h>
 #include "numpy/arrayobject.h"
+#include "numpy/ndarrayobject.h"
+#include "numpy/ndarraytypes.h"
+#include "numpy/arrayscalars.h"
 #include "numpy/ufuncobject.h"
+
+    /* NumPy API declarations from "numpy/__init__.pxd" */
+    
 #include "pythread.h"
 #include <stdlib.h>
 #include "pystate.h"
@@ -627,7 +630,8 @@ typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* enc
                 const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
 
 #define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
-#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_UTF8 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT (PY_MAJOR_VERSION >= 3 && __PYX_DEFAULT_STRING_ENCODING_IS_UTF8)
 #define __PYX_DEFAULT_STRING_ENCODING ""
 #define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
 #define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
@@ -958,7 +962,7 @@ typedef struct {
 } __Pyx_BufFmt_Context;
 
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":690
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -967,7 +971,7 @@ typedef struct {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":691
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -976,7 +980,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":692
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -985,7 +989,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":693
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -994,7 +998,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":697
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -1003,7 +1007,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":698
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -1012,7 +1016,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":699
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -1021,7 +1025,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":700
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -1030,7 +1034,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":704
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -1039,7 +1043,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":705
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -1048,7 +1052,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":714
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -1057,7 +1061,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":715
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -1066,7 +1070,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":716
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -1075,7 +1079,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":718
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -1084,7 +1088,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":719
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -1093,7 +1097,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":720
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -1102,7 +1106,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":722
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -1111,7 +1115,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":723
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -1120,7 +1124,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":725
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1129,7 +1133,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":726
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1138,7 +1142,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":727
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1195,7 +1199,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":729
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1204,7 +1208,7 @@ struct __pyx_memoryviewslice_obj;
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":730
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1213,7 +1217,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":731
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1222,7 +1226,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":733
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1292,7 +1296,7 @@ struct __pyx_memoryview_obj {
 };
 
 
-/* "View.MemoryView":961
+/* "View.MemoryView":965
  * 
  * @cname('__pyx_memoryviewslice')
  * cdef class _memoryviewslice(memoryview):             # <<<<<<<<<<<<<<
@@ -1343,7 +1347,7 @@ struct __pyx_vtabstruct_memoryview {
 static struct __pyx_vtabstruct_memoryview *__pyx_vtabptr_memoryview;
 
 
-/* "View.MemoryView":961
+/* "View.MemoryView":965
  * 
  * @cname('__pyx_memoryviewslice')
  * cdef class _memoryviewslice(memoryview):             # <<<<<<<<<<<<<<
@@ -1442,6 +1446,32 @@ static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
     PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
     const char* function_name);
 
+/* PyDictVersioning.proto */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+#define __PYX_DICT_VERSION_INIT  ((PY_UINT64_T) -1)
+#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
+    (version_var) = __PYX_GET_DICT_VERSION(dict);\
+    (cache_var) = (value);
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
+        (VAR) = __pyx_dict_cached_value;\
+    } else {\
+        (VAR) = __pyx_dict_cached_value = (LOOKUP);\
+        __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
+    }\
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj);
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj);
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version);
+#else
+#define __PYX_GET_DICT_VERSION(dict)  (0)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
+#endif
+
 /* GetModuleGlobalName.proto */
 #if CYTHON_USE_DICT_VERSIONS
 #define __Pyx_GetModuleGlobalName(var, name)  {\
@@ -1475,7 +1505,7 @@ static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObje
 #define __Pyx_PyFunction_FastCall(func, args, nargs)\
     __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs);
 #else
 #define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
 #endif
@@ -1581,32 +1611,6 @@ static void __Pyx_WriteUnraisable(const char *name, int clineno,
                                   int lineno, const char *filename,
                                   int full_traceback, int nogil);
 
-/* RaiseException.proto */
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
-
-/* DictGetItem.proto */
-#if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
-static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key);
-#define __Pyx_PyObject_Dict_GetItem(obj, name)\
-    (likely(PyDict_CheckExact(obj)) ?\
-     __Pyx_PyDict_GetItem(obj, name) : PyObject_GetItem(obj, name))
-#else
-#define __Pyx_PyDict_GetItem(d, key) PyObject_GetItem(d, key)
-#define __Pyx_PyObject_Dict_GetItem(obj, name)  PyObject_GetItem(obj, name)
-#endif
-
-/* RaiseTooManyValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
-
-/* RaiseNeedMoreValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
-
-/* RaiseNoneIterError.proto */
-static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
-
-/* ExtTypeTest.proto */
-static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
-
 /* GetTopmostException.proto */
 #if CYTHON_USE_EXC_INFO_STACK
 static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate);
@@ -1639,6 +1643,9 @@ static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
 #endif
 
+/* RaiseException.proto */
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
 /* ArgTypeTest.proto */
 #define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\
     ((likely((Py_TYPE(obj) == type) | (none_allowed && (obj == Py_None)))) ? 1 :\
@@ -1725,6 +1732,18 @@ static CYTHON_INLINE PyObject* __Pyx_decode_c_string(
 /* GetAttr3.proto */
 static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *, PyObject *, PyObject *);
 
+/* RaiseTooManyValuesToUnpack.proto */
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
+
+/* RaiseNeedMoreValuesToUnpack.proto */
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
+
+/* RaiseNoneIterError.proto */
+static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
+
+/* ExtTypeTest.proto */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
+
 /* SwapException.proto */
 #if CYTHON_FAST_THREAD_STATE
 #define __Pyx_ExceptionSwap(type, value, tb)  __Pyx__ExceptionSwap(__pyx_tstate, type, value, tb)
@@ -1758,7 +1777,7 @@ static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
     if (likely(L->allocated > len)) {
         Py_INCREF(x);
         PyList_SET_ITEM(list, len, x);
-        Py_SIZE(list) = len+1;
+        __Pyx_SET_SIZE(list, len + 1);
         return 0;
     }
     return PyList_Append(list, x);
@@ -1769,9 +1788,9 @@ static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
 
 /* PyIntBinop.proto */
 #if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, long intval, int inplace);
+static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, long intval, int inplace, int zerodivision_check);
 #else
-#define __Pyx_PyInt_AddObjC(op1, op2, intval, inplace)\
+#define __Pyx_PyInt_AddObjC(op1, op2, intval, inplace, zerodivision_check)\
     (inplace ? PyNumber_InPlaceAdd(op1, op2) : PyNumber_Add(op1, op2))
 #endif
 
@@ -1796,7 +1815,7 @@ static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
     if (likely(L->allocated > len) & likely(len > (L->allocated >> 1))) {
         Py_INCREF(x);
         PyList_SET_ITEM(list, len, x);
-        Py_SIZE(list) = len+1;
+        __Pyx_SET_SIZE(list, len + 1);
         return 0;
     }
     return PyList_Append(list, x);
@@ -1831,6 +1850,9 @@ static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_nam
 /* SetVTable.proto */
 static int __Pyx_SetVtable(PyObject *dict, void *vtable);
 
+/* PyObjectGetAttrStrNoError.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name);
+
 /* SetupReduce.proto */
 static int __Pyx_setup_reduce(PyObject* type_obj);
 
@@ -2042,9 +2064,6 @@ static CYTHON_INLINE int __pyx_memview_set_double(const char *itemp, PyObject *o
     #endif
 #endif
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
-
 /* MemviewSliceCopyTemplate.proto */
 static __Pyx_memviewslice
 __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
@@ -2113,8 +2132,17 @@ static PyTypeObject *__pyx_ptype_5numpy_dtype = 0;
 static PyTypeObject *__pyx_ptype_5numpy_flatiter = 0;
 static PyTypeObject *__pyx_ptype_5numpy_broadcast = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ndarray = 0;
+static PyTypeObject *__pyx_ptype_5numpy_generic = 0;
+static PyTypeObject *__pyx_ptype_5numpy_number = 0;
+static PyTypeObject *__pyx_ptype_5numpy_integer = 0;
+static PyTypeObject *__pyx_ptype_5numpy_signedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_unsignedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_inexact = 0;
+static PyTypeObject *__pyx_ptype_5numpy_floating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_complexfloating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_flexible = 0;
+static PyTypeObject *__pyx_ptype_5numpy_character = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
-static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
 static CYTHON_INLINE int __pyx_f_5numpy_import_array(void); /*proto*/
 
 /* Module declarations from 'scipy.linalg.cython_blas' */
@@ -2176,9 +2204,8 @@ int __pyx_module_is_main_GPy__util__choleskies_cython = 0;
 /* Implementation of 'GPy.util.choleskies_cython' */
 static PyObject *__pyx_builtin_range;
 static PyObject *__pyx_builtin_xrange;
-static PyObject *__pyx_builtin_ValueError;
-static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
+static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_MemoryError;
 static PyObject *__pyx_builtin_enumerate;
 static PyObject *__pyx_builtin_TypeError;
@@ -2258,7 +2285,6 @@ static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
 static const char __pyx_k_ImportError[] = "ImportError";
 static const char __pyx_k_MemoryError[] = "MemoryError";
 static const char __pyx_k_PickleError[] = "PickleError";
-static const char __pyx_k_RuntimeError[] = "RuntimeError";
 static const char __pyx_k_pyx_checksum[] = "__pyx_checksum";
 static const char __pyx_k_stringsource[] = "stringsource";
 static const char __pyx_k_pyx_getbuffer[] = "__pyx_getbuffer";
@@ -2286,30 +2312,24 @@ static const char __pyx_k_Cannot_index_with_type_s[] = "Cannot index with type '
 static const char __pyx_k_Invalid_shape_in_axis_d_d[] = "Invalid shape in axis %d: %d.";
 static const char __pyx_k_GPy_util_choleskies_cython[] = "GPy.util.choleskies_cython";
 static const char __pyx_k_itemsize_0_for_cython_array[] = "itemsize <= 0 for cython.array";
-static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
 static const char __pyx_k_unable_to_allocate_array_data[] = "unable to allocate array data.";
 static const char __pyx_k_GPy_util_choleskies_cython_pyx[] = "GPy/util/choleskies_cython.pyx";
 static const char __pyx_k_strided_and_direct_or_indirect[] = "<strided and direct or indirect>";
 static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
-static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
 static const char __pyx_k_Buffer_view_does_not_expose_stri[] = "Buffer view does not expose strides";
 static const char __pyx_k_Can_only_create_a_buffer_that_is[] = "Can only create a buffer that is contiguous in memory.";
 static const char __pyx_k_Cannot_assign_to_read_only_memor[] = "Cannot assign to read-only memoryview";
 static const char __pyx_k_Cannot_create_writable_memory_vi[] = "Cannot create writable memory view from read-only memoryview";
 static const char __pyx_k_Empty_shape_tuple_for_cython_arr[] = "Empty shape tuple for cython.array";
-static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
 static const char __pyx_k_Incompatible_checksums_s_vs_0xb0[] = "Incompatible checksums (%s vs 0xb068931 = (name))";
 static const char __pyx_k_Indirect_dimensions_not_supporte[] = "Indirect dimensions not supported";
 static const char __pyx_k_Invalid_mode_expected_c_or_fortr[] = "Invalid mode, expected 'c' or 'fortran', got %s";
-static const char __pyx_k_Non_native_byte_order_not_suppor[] = "Non-native byte order not supported";
 static const char __pyx_k_Out_of_bounds_on_buffer_access_a[] = "Out of bounds on buffer access (axis %d)";
 static const char __pyx_k_Unable_to_convert_item_to_object[] = "Unable to convert item to object";
 static const char __pyx_k_got_differing_extents_in_dimensi[] = "got differing extents in dimension %d (got %d and %d)";
-static const char __pyx_k_ndarray_is_not_Fortran_contiguou[] = "ndarray is not Fortran contiguous";
 static const char __pyx_k_no_default___reduce___due_to_non[] = "no default __reduce__ due to non-trivial __cinit__";
 static const char __pyx_k_numpy_core_umath_failed_to_impor[] = "numpy.core.umath failed to import";
 static const char __pyx_k_unable_to_allocate_shape_and_str[] = "unable to allocate shape and strides.";
-static const char __pyx_k_Format_string_allocated_too_shor_2[] = "Format string allocated too short.";
 static PyObject *__pyx_n_s_ASCII;
 static PyObject *__pyx_kp_s_Buffer_view_does_not_expose_stri;
 static PyObject *__pyx_kp_s_Can_only_create_a_buffer_that_is;
@@ -2319,8 +2339,6 @@ static PyObject *__pyx_kp_s_Cannot_index_with_type_s;
 static PyObject *__pyx_n_s_D;
 static PyObject *__pyx_n_s_Ellipsis;
 static PyObject *__pyx_kp_s_Empty_shape_tuple_for_cython_arr;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor_2;
 static PyObject *__pyx_n_s_GPy_util_choleskies_cython;
 static PyObject *__pyx_kp_s_GPy_util_choleskies_cython_pyx;
 static PyObject *__pyx_n_s_ImportError;
@@ -2336,11 +2354,9 @@ static PyObject *__pyx_n_s_MemoryError;
 static PyObject *__pyx_kp_s_MemoryView_of_r_at_0x_x;
 static PyObject *__pyx_kp_s_MemoryView_of_r_object;
 static PyObject *__pyx_n_s_N;
-static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
 static PyObject *__pyx_n_b_O;
 static PyObject *__pyx_kp_s_Out_of_bounds_on_buffer_access_a;
 static PyObject *__pyx_n_s_PickleError;
-static PyObject *__pyx_n_s_RuntimeError;
 static PyObject *__pyx_n_s_TypeError;
 static PyObject *__pyx_kp_s_Unable_to_convert_item_to_object;
 static PyObject *__pyx_n_s_ValueError;
@@ -2390,8 +2406,6 @@ static PyObject *__pyx_n_s_mm;
 static PyObject *__pyx_n_s_mode;
 static PyObject *__pyx_n_s_name;
 static PyObject *__pyx_n_s_name_2;
-static PyObject *__pyx_kp_u_ndarray_is_not_C_contiguous;
-static PyObject *__pyx_kp_u_ndarray_is_not_Fortran_contiguou;
 static PyObject *__pyx_n_s_ndim;
 static PyObject *__pyx_n_s_new;
 static PyObject *__pyx_kp_s_no_default___reduce___due_to_non;
@@ -2432,7 +2446,6 @@ static PyObject *__pyx_n_s_triang_to_flat;
 static PyObject *__pyx_n_s_tril;
 static PyObject *__pyx_kp_s_unable_to_allocate_array_data;
 static PyObject *__pyx_kp_s_unable_to_allocate_shape_and_str;
-static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_n_s_unpack;
 static PyObject *__pyx_n_s_update;
 static PyObject *__pyx_n_s_xrange;
@@ -2442,8 +2455,6 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_2triang_to_flat(CYTHON_
 static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_4backprop_gradient(CYTHON_UNUSED PyObject *__pyx_self, __Pyx_memviewslice __pyx_v_dL, __Pyx_memviewslice __pyx_v_L); /* proto */
 static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_6backprop_gradient_par(CYTHON_UNUSED PyObject *__pyx_self, __Pyx_memviewslice __pyx_v_dL, __Pyx_memviewslice __pyx_v_L); /* proto */
 static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_8backprop_gradient_par_c(CYTHON_UNUSED PyObject *__pyx_self, __Pyx_memviewslice __pyx_v_dL, __Pyx_memviewslice __pyx_v_L); /* proto */
-static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
-static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static int __pyx_array___pyx_pf_15View_dot_MemoryView_5array___cinit__(struct __pyx_array_obj *__pyx_v_self, PyObject *__pyx_v_shape, Py_ssize_t __pyx_v_itemsize, PyObject *__pyx_v_format, PyObject *__pyx_v_mode, int __pyx_v_allocate_buffer); /* proto */
 static int __pyx_array___pyx_pf_15View_dot_MemoryView_5array_2__getbuffer__(struct __pyx_array_obj *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_array___pyx_pf_15View_dot_MemoryView_5array_4__dealloc__(struct __pyx_array_obj *__pyx_v_self); /* proto */
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 static PyObject *__pyx_tuple__7;
 static PyObject *__pyx_tuple__8;
 static PyObject *__pyx_tuple__9;
-static PyObject *__pyx_slice__22;
+static PyObject *__pyx_slice__17;
 static PyObject *__pyx_tuple__10;
 static PyObject *__pyx_tuple__11;
 static PyObject *__pyx_tuple__12;
@@ -2511,31 +2522,26 @@ static PyObject *__pyx_tuple__13;
 static PyObject *__pyx_tuple__14;
 static PyObject *__pyx_tuple__15;
 static PyObject *__pyx_tuple__16;
-static PyObject *__pyx_tuple__17;
 static PyObject *__pyx_tuple__18;
 static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 static PyObject *__pyx_tuple__21;
 static PyObject *__pyx_tuple__23;
-static PyObject *__pyx_tuple__24;
 static PyObject *__pyx_tuple__25;
-static PyObject *__pyx_tuple__26;
-static PyObject *__pyx_tuple__28;
-static PyObject *__pyx_tuple__30;
+static PyObject *__pyx_tuple__27;
+static PyObject *__pyx_tuple__29;
+static PyObject *__pyx_tuple__31;
 static PyObject *__pyx_tuple__32;
+static PyObject *__pyx_tuple__33;
 static PyObject *__pyx_tuple__34;
+static PyObject *__pyx_tuple__35;
 static PyObject *__pyx_tuple__36;
-static PyObject *__pyx_tuple__37;
-static PyObject *__pyx_tuple__38;
-static PyObject *__pyx_tuple__39;
-static PyObject *__pyx_tuple__40;
-static PyObject *__pyx_tuple__41;
-static PyObject *__pyx_codeobj__27;
-static PyObject *__pyx_codeobj__29;
-static PyObject *__pyx_codeobj__31;
-static PyObject *__pyx_codeobj__33;
-static PyObject *__pyx_codeobj__35;
-static PyObject *__pyx_codeobj__42;
+static PyObject *__pyx_codeobj__22;
+static PyObject *__pyx_codeobj__24;
+static PyObject *__pyx_codeobj__26;
+static PyObject *__pyx_codeobj__28;
+static PyObject *__pyx_codeobj__30;
+static PyObject *__pyx_codeobj__37;
 /* Late includes */
 
 /* "GPy/util/choleskies_cython.pyx":14
@@ -2548,11 +2554,14 @@ static PyObject *__pyx_codeobj__42;
 
 /* Python wrapper */
 static PyObject *__pyx_pw_3GPy_4util_17choleskies_cython_1flat_to_triang(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_3GPy_4util_17choleskies_cython_flat_to_triang[] = "take a matrix N x D and return a D X M x M array where\n\n    N = M(M+1)/2\n\n    the lower triangluar portion of the d'th slice of the result is filled by the d'th column of flat.\n    ";
+static char __pyx_doc_3GPy_4util_17choleskies_cython_flat_to_triang[] = "take a matrix N x D and return a D X M x M array where\n\n    N = M(M+1)//2\n\n    the lower triangluar portion of the d'th slice of the result is filled by the d'th column of flat.\n    ";
 static PyMethodDef __pyx_mdef_3GPy_4util_17choleskies_cython_1flat_to_triang = {"flat_to_triang", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_3GPy_4util_17choleskies_cython_1flat_to_triang, METH_VARARGS|METH_KEYWORDS, __pyx_doc_3GPy_4util_17choleskies_cython_flat_to_triang};
 static PyObject *__pyx_pw_3GPy_4util_17choleskies_cython_1flat_to_triang(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   __Pyx_memviewslice __pyx_v_flat = { 0, 0, { 0 }, { 0 }, { 0 } };
   int __pyx_v_M;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("flat_to_triang (wrapper)", 0);
@@ -2640,6 +2649,9 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_flat_to_triang(CYTHON_U
   Py_ssize_t __pyx_t_19;
   Py_ssize_t __pyx_t_20;
   Py_ssize_t __pyx_t_21;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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@@ -2885,6 +2897,9 @@ static PyObject *__pyx_pw_3GPy_4util_17choleskies_cython_3triang_to_flat(PyObjec
 static PyMethodDef __pyx_mdef_3GPy_4util_17choleskies_cython_3triang_to_flat = {"triang_to_flat", (PyCFunction)__pyx_pw_3GPy_4util_17choleskies_cython_3triang_to_flat, METH_O, 0};
 static PyObject *__pyx_pw_3GPy_4util_17choleskies_cython_3triang_to_flat(PyObject *__pyx_self, PyObject *__pyx_arg_L) {
   __Pyx_memviewslice __pyx_v_L = { 0, 0, { 0 }, { 0 }, { 0 } };
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
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@@ -2935,6 +2950,9 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_2triang_to_flat(CYTHON_
   Py_ssize_t __pyx_t_18;
   Py_ssize_t __pyx_t_19;
   Py_ssize_t __pyx_t_20;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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   /* "GPy/util/choleskies_cython.pyx":36
@@ -2942,7 +2960,7 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_2triang_to_flat(CYTHON_
  * def triang_to_flat(double[:, :, :] L):
  *     cdef int D = L.shape[0]             # <<<<<<<<<<<<<<
  *     cdef int M = L.shape[1]
- *     cdef int N = M*(M+1)/2
+ *     cdef int N = M*(M+1)//2
  */
   __pyx_v_D = (__pyx_v_L.shape[0]);
 
@@ -2950,7 +2968,7 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_2triang_to_flat(CYTHON_
  * def triang_to_flat(double[:, :, :] L):
  *     cdef int D = L.shape[0]
  *     cdef int M = L.shape[1]             # <<<<<<<<<<<<<<
- *     cdef int N = M*(M+1)/2
+ *     cdef int N = M*(M+1)//2
  *     cdef int count = 0
  */
   __pyx_v_M = (__pyx_v_L.shape[1]);
@@ -2958,7 +2976,7 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_2triang_to_flat(CYTHON_
   /* "GPy/util/choleskies_cython.pyx":38
  *     cdef int D = L.shape[0]
  *     cdef int M = L.shape[1]
- *     cdef int N = M*(M+1)/2             # <<<<<<<<<<<<<<
+ *     cdef int N = M*(M+1)//2             # <<<<<<<<<<<<<<
  *     cdef int count = 0
  *     cdef double[:, ::1] flat = np.empty((N, D))
  */
@@ -2966,7 +2984,7 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_2triang_to_flat(CYTHON_
 
   /* "GPy/util/choleskies_cython.pyx":39
  *     cdef int M = L.shape[1]
- *     cdef int N = M*(M+1)/2
+ *     cdef int N = M*(M+1)//2
  *     cdef int count = 0             # <<<<<<<<<<<<<<
  *     cdef double[:, ::1] flat = np.empty((N, D))
  *     cdef int d, m, mm
@@ -2974,7 +2992,7 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_2triang_to_flat(CYTHON_
   __pyx_v_count = 0;
 
   /* "GPy/util/choleskies_cython.pyx":40
- *     cdef int N = M*(M+1)/2
+ *     cdef int N = M*(M+1)//2
  *     cdef int count = 0
  *     cdef double[:, ::1] flat = np.empty((N, D))             # <<<<<<<<<<<<<<
  *     cdef int d, m, mm
@@ -3184,6 +3202,9 @@ static PyMethodDef __pyx_mdef_3GPy_4util_17choleskies_cython_5backprop_gradient
 static PyObject *__pyx_pw_3GPy_4util_17choleskies_cython_5backprop_gradient(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   __Pyx_memviewslice __pyx_v_dL = { 0, 0, { 0 }, { 0 }, { 0 } };
   __Pyx_memviewslice __pyx_v_L = { 0, 0, { 0 }, { 0 }, { 0 } };
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
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-  Py_ssize_t __pyx_t_28;
-  Py_ssize_t __pyx_t_29;
-  Py_ssize_t __pyx_t_30;
-  Py_ssize_t __pyx_t_31;
-  Py_ssize_t __pyx_t_32;
-  Py_ssize_t __pyx_t_33;
-  Py_ssize_t __pyx_t_34;
-  Py_ssize_t __pyx_t_35;
-  Py_ssize_t __pyx_t_36;
-  Py_ssize_t __pyx_t_37;
-  Py_ssize_t __pyx_t_38;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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@@ -3410,19 +3414,19 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_4backprop_gradient(CYTH
  *             for j in range(k + 1, N):
  *                 dL_dK[j, k] /= L[k, k]
  */
-              __pyx_t_19 = __pyx_v_i;
-              __pyx_t_20 = __pyx_v_j;
-              if (__pyx_t_19 < 0) __pyx_t_19 += __pyx_v_dL_dK.shape[0];
-              if (__pyx_t_20 < 0) __pyx_t_20 += __pyx_v_dL_dK.shape[1];
-              __pyx_t_21 = __pyx_v_i;
-              __pyx_t_22 = __pyx_v_k;
-              if (__pyx_t_21 < 0) __pyx_t_21 += __pyx_v_L.shape[0];
-              if (__pyx_t_22 < 0) __pyx_t_22 += __pyx_v_L.shape[1];
-              __pyx_t_23 = __pyx_v_j;
-              __pyx_t_24 = __pyx_v_k;
-              if (__pyx_t_23 < 0) __pyx_t_23 += __pyx_v_dL_dK.shape[0];
-              if (__pyx_t_24 < 0) __pyx_t_24 += __pyx_v_dL_dK.shape[1];
-              *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_23 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_24)) )) -= ((*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_19 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_20)) ))) * (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_21 * __pyx_v_L.strides[0]) ) + __pyx_t_22 * __pyx_v_L.strides[1]) ))));
+              __pyx_t_16 = __pyx_v_i;
+              __pyx_t_15 = __pyx_v_j;
+              if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_v_dL_dK.shape[0];
+              if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_v_dL_dK.shape[1];
+              __pyx_t_14 = __pyx_v_i;
+              __pyx_t_13 = __pyx_v_k;
+              if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_v_L.shape[0];
+              if (__pyx_t_13 < 0) __pyx_t_13 += __pyx_v_L.shape[1];
+              __pyx_t_18 = __pyx_v_j;
+              __pyx_t_17 = __pyx_v_k;
+              if (__pyx_t_18 < 0) __pyx_t_18 += __pyx_v_dL_dK.shape[0];
+              if (__pyx_t_17 < 0) __pyx_t_17 += __pyx_v_dL_dK.shape[1];
+              *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_18 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_17)) )) -= ((*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_16 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_15)) ))) * (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_14 * __pyx_v_L.strides[0]) ) + __pyx_t_13 * __pyx_v_L.strides[1]) ))));
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@@ -3445,15 +3449,15 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_4backprop_gradient(CYTH
  *                 dL_dK[k, k] -= L[j, k] * dL_dK[j, k]
  *             dL_dK[k, k] /= (2. * L[k, k])
  */
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-            if (__pyx_t_26 < 0) __pyx_t_26 += __pyx_v_L.shape[1];
-            __pyx_t_27 = __pyx_v_j;
-            __pyx_t_28 = __pyx_v_k;
-            if (__pyx_t_27 < 0) __pyx_t_27 += __pyx_v_dL_dK.shape[0];
-            if (__pyx_t_28 < 0) __pyx_t_28 += __pyx_v_dL_dK.shape[1];
-            *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_27 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_28)) )) /= (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_25 * __pyx_v_L.strides[0]) ) + __pyx_t_26 * __pyx_v_L.strides[1]) )));
+            __pyx_t_13 = __pyx_v_k;
+            __pyx_t_14 = __pyx_v_k;
+            if (__pyx_t_13 < 0) __pyx_t_13 += __pyx_v_L.shape[0];
+            if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_v_L.shape[1];
+            __pyx_t_15 = __pyx_v_j;
+            __pyx_t_16 = __pyx_v_k;
+            if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_v_dL_dK.shape[0];
+            if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_v_dL_dK.shape[1];
+            *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_15 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_16)) )) /= (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_13 * __pyx_v_L.strides[0]) ) + __pyx_t_14 * __pyx_v_L.strides[1]) )));
 
             /* "GPy/util/choleskies_cython.pyx":63
  *             for j in range(k + 1, N):
@@ -3462,19 +3466,19 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_4backprop_gradient(CYTH
  *             dL_dK[k, k] /= (2. * L[k, k])
  *     return dL_dK
  */
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-            if (__pyx_t_30 < 0) __pyx_t_30 += __pyx_v_L.shape[1];
-            __pyx_t_31 = __pyx_v_j;
-            __pyx_t_32 = __pyx_v_k;
-            if (__pyx_t_31 < 0) __pyx_t_31 += __pyx_v_dL_dK.shape[0];
-            if (__pyx_t_32 < 0) __pyx_t_32 += __pyx_v_dL_dK.shape[1];
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-            __pyx_t_34 = __pyx_v_k;
-            if (__pyx_t_33 < 0) __pyx_t_33 += __pyx_v_dL_dK.shape[0];
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+            __pyx_t_14 = __pyx_v_j;
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+            if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_v_L.shape[0];
+            if (__pyx_t_13 < 0) __pyx_t_13 += __pyx_v_L.shape[1];
+            __pyx_t_16 = __pyx_v_j;
+            __pyx_t_15 = __pyx_v_k;
+            if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_v_dL_dK.shape[0];
+            if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_v_dL_dK.shape[1];
+            __pyx_t_17 = __pyx_v_k;
+            __pyx_t_18 = __pyx_v_k;
+            if (__pyx_t_17 < 0) __pyx_t_17 += __pyx_v_dL_dK.shape[0];
+            if (__pyx_t_18 < 0) __pyx_t_18 += __pyx_v_dL_dK.shape[1];
+            *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_17 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_18)) )) -= ((*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_14 * __pyx_v_L.strides[0]) ) + __pyx_t_13 * __pyx_v_L.strides[1]) ))) * (*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_16 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_15)) ))));
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           /* "GPy/util/choleskies_cython.pyx":64
@@ -3484,15 +3488,15 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_4backprop_gradient(CYTH
  *     return dL_dK
  * 
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-          if (__pyx_t_37 < 0) __pyx_t_37 += __pyx_v_dL_dK.shape[0];
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-          *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_37 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_38)) )) /= (2. * (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_35 * __pyx_v_L.strides[0]) ) + __pyx_t_36 * __pyx_v_L.strides[1]) ))));
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+          if (__pyx_t_13 < 0) __pyx_t_13 += __pyx_v_dL_dK.shape[0];
+          if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_v_dL_dK.shape[1];
+          *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_13 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_14)) )) /= (2. * (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_15 * __pyx_v_L.strides[0]) ) + __pyx_t_16 * __pyx_v_L.strides[1]) ))));
         }
       }
 
@@ -3569,6 +3573,9 @@ static PyMethodDef __pyx_mdef_3GPy_4util_17choleskies_cython_7backprop_gradient_
 static PyObject *__pyx_pw_3GPy_4util_17choleskies_cython_7backprop_gradient_par(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   __Pyx_memviewslice __pyx_v_dL = { 0, 0, { 0 }, { 0 }, { 0 } };
   __Pyx_memviewslice __pyx_v_L = { 0, 0, { 0 }, { 0 }, { 0 } };
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("backprop_gradient_par (wrapper)", 0);
@@ -3654,26 +3661,9 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_6backprop_gradient_par(
   Py_ssize_t __pyx_t_19;
   int __pyx_t_20;
   int __pyx_t_21;
-  Py_ssize_t __pyx_t_22;
-  Py_ssize_t __pyx_t_23;
-  Py_ssize_t __pyx_t_24;
-  Py_ssize_t __pyx_t_25;
-  Py_ssize_t __pyx_t_26;
-  Py_ssize_t __pyx_t_27;
-  Py_ssize_t __pyx_t_28;
-  Py_ssize_t __pyx_t_29;
-  Py_ssize_t __pyx_t_30;
-  Py_ssize_t __pyx_t_31;
-  Py_ssize_t __pyx_t_32;
-  Py_ssize_t __pyx_t_33;
-  Py_ssize_t __pyx_t_34;
-  Py_ssize_t __pyx_t_35;
-  Py_ssize_t __pyx_t_36;
-  Py_ssize_t __pyx_t_37;
-  Py_ssize_t __pyx_t_38;
-  Py_ssize_t __pyx_t_39;
-  Py_ssize_t __pyx_t_40;
-  Py_ssize_t __pyx_t_41;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("backprop_gradient_par", 0);
 
   /* "GPy/util/choleskies_cython.pyx":68
@@ -3761,7 +3751,7 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_6backprop_gradient_par(
                   #define unlikely(x) (x)
               #endif
               #ifdef _OPENMP
-              #pragma omp parallel  private(__pyx_t_10, __pyx_t_11, __pyx_t_12, __pyx_t_13, __pyx_t_14, __pyx_t_15, __pyx_t_16, __pyx_t_17, __pyx_t_18, __pyx_t_19, __pyx_t_20, __pyx_t_21, __pyx_t_22, __pyx_t_23, __pyx_t_24, __pyx_t_25, __pyx_t_26, __pyx_t_27, __pyx_t_7, __pyx_t_8, __pyx_t_9)
+              #pragma omp parallel  private(__pyx_t_10, __pyx_t_11, __pyx_t_12, __pyx_t_13, __pyx_t_14, __pyx_t_15, __pyx_t_16, __pyx_t_17, __pyx_t_18, __pyx_t_19, __pyx_t_20, __pyx_t_21, __pyx_t_7, __pyx_t_8, __pyx_t_9)
               #endif /* _OPENMP */
               {
 
@@ -3774,7 +3764,7 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_6backprop_gradient_par(
  */
                   __pyx_t_7 = (__pyx_v_k + 1);
                   __pyx_t_8 = __pyx_v_N;
-                  if (1 == 0) abort();
+                  if ((1 == 0)) abort();
                   {
                       __pyx_t_10 = (__pyx_t_8 - __pyx_t_7 + 1 - 1/abs(1)) / 1;
                       if (__pyx_t_10 > 0)
@@ -3841,19 +3831,19 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_6backprop_gradient_par(
  *             for j in range(k + 1, N):
  *                 dL_dK[j, k] /= L[k, k]
  */
-                                    __pyx_t_22 = __pyx_v_j;
-                                    __pyx_t_23 = __pyx_v_i;
-                                    if (__pyx_t_22 < 0) __pyx_t_22 += __pyx_v_dL_dK.shape[0];
-                                    if (__pyx_t_23 < 0) __pyx_t_23 += __pyx_v_dL_dK.shape[1];
-                                    __pyx_t_24 = __pyx_v_j;
-                                    __pyx_t_25 = __pyx_v_k;
-                                    if (__pyx_t_24 < 0) __pyx_t_24 += __pyx_v_L.shape[0];
-                                    if (__pyx_t_25 < 0) __pyx_t_25 += __pyx_v_L.shape[1];
-                                    __pyx_t_26 = __pyx_v_i;
-                                    __pyx_t_27 = __pyx_v_k;
-                                    if (__pyx_t_26 < 0) __pyx_t_26 += __pyx_v_dL_dK.shape[0];
-                                    if (__pyx_t_27 < 0) __pyx_t_27 += __pyx_v_dL_dK.shape[1];
-                                    *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_26 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_27)) )) -= ((*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_22 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_23)) ))) * (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_24 * __pyx_v_L.strides[0]) ) + __pyx_t_25 * __pyx_v_L.strides[1]) ))));
+                                    __pyx_t_17 = __pyx_v_j;
+                                    __pyx_t_16 = __pyx_v_i;
+                                    if (__pyx_t_17 < 0) __pyx_t_17 += __pyx_v_dL_dK.shape[0];
+                                    if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_v_dL_dK.shape[1];
+                                    __pyx_t_15 = __pyx_v_j;
+                                    __pyx_t_14 = __pyx_v_k;
+                                    if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_v_L.shape[0];
+                                    if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_v_L.shape[1];
+                                    __pyx_t_19 = __pyx_v_i;
+                                    __pyx_t_18 = __pyx_v_k;
+                                    if (__pyx_t_19 < 0) __pyx_t_19 += __pyx_v_dL_dK.shape[0];
+                                    if (__pyx_t_18 < 0) __pyx_t_18 += __pyx_v_dL_dK.shape[1];
+                                    *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_19 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_18)) )) -= ((*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_17 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_16)) ))) * (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_15 * __pyx_v_L.strides[0]) ) + __pyx_t_14 * __pyx_v_L.strides[1]) ))));
                                   }
                               }
                           }
@@ -3887,15 +3877,15 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_6backprop_gradient_par(
  *                 dL_dK[k, k] -= L[j, k] * dL_dK[j, k]
  *             dL_dK[k, k] /= (2. * L[k, k])
  */
-            __pyx_t_28 = __pyx_v_k;
-            __pyx_t_29 = __pyx_v_k;
-            if (__pyx_t_28 < 0) __pyx_t_28 += __pyx_v_L.shape[0];
-            if (__pyx_t_29 < 0) __pyx_t_29 += __pyx_v_L.shape[1];
-            __pyx_t_30 = __pyx_v_j;
-            __pyx_t_31 = __pyx_v_k;
-            if (__pyx_t_30 < 0) __pyx_t_30 += __pyx_v_dL_dK.shape[0];
-            if (__pyx_t_31 < 0) __pyx_t_31 += __pyx_v_dL_dK.shape[1];
-            *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_30 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_31)) )) /= (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_28 * __pyx_v_L.strides[0]) ) + __pyx_t_29 * __pyx_v_L.strides[1]) )));
+            __pyx_t_14 = __pyx_v_k;
+            __pyx_t_15 = __pyx_v_k;
+            if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_v_L.shape[0];
+            if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_v_L.shape[1];
+            __pyx_t_16 = __pyx_v_j;
+            __pyx_t_17 = __pyx_v_k;
+            if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_v_dL_dK.shape[0];
+            if (__pyx_t_17 < 0) __pyx_t_17 += __pyx_v_dL_dK.shape[1];
+            *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_16 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_17)) )) /= (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_14 * __pyx_v_L.strides[0]) ) + __pyx_t_15 * __pyx_v_L.strides[1]) )));
 
             /* "GPy/util/choleskies_cython.pyx":81
  *             for j in range(k + 1, N):
@@ -3904,19 +3894,19 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_6backprop_gradient_par(
  *             dL_dK[k, k] /= (2. * L[k, k])
  *     return dL_dK
  */
-            __pyx_t_32 = __pyx_v_j;
-            __pyx_t_33 = __pyx_v_k;
-            if (__pyx_t_32 < 0) __pyx_t_32 += __pyx_v_L.shape[0];
-            if (__pyx_t_33 < 0) __pyx_t_33 += __pyx_v_L.shape[1];
-            __pyx_t_34 = __pyx_v_j;
-            __pyx_t_35 = __pyx_v_k;
-            if (__pyx_t_34 < 0) __pyx_t_34 += __pyx_v_dL_dK.shape[0];
-            if (__pyx_t_35 < 0) __pyx_t_35 += __pyx_v_dL_dK.shape[1];
-            __pyx_t_36 = __pyx_v_k;
-            __pyx_t_37 = __pyx_v_k;
-            if (__pyx_t_36 < 0) __pyx_t_36 += __pyx_v_dL_dK.shape[0];
-            if (__pyx_t_37 < 0) __pyx_t_37 += __pyx_v_dL_dK.shape[1];
-            *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_36 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_37)) )) -= ((*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_32 * __pyx_v_L.strides[0]) ) + __pyx_t_33 * __pyx_v_L.strides[1]) ))) * (*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_34 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_35)) ))));
+            __pyx_t_15 = __pyx_v_j;
+            __pyx_t_14 = __pyx_v_k;
+            if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_v_L.shape[0];
+            if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_v_L.shape[1];
+            __pyx_t_17 = __pyx_v_j;
+            __pyx_t_16 = __pyx_v_k;
+            if (__pyx_t_17 < 0) __pyx_t_17 += __pyx_v_dL_dK.shape[0];
+            if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_v_dL_dK.shape[1];
+            __pyx_t_18 = __pyx_v_k;
+            __pyx_t_19 = __pyx_v_k;
+            if (__pyx_t_18 < 0) __pyx_t_18 += __pyx_v_dL_dK.shape[0];
+            if (__pyx_t_19 < 0) __pyx_t_19 += __pyx_v_dL_dK.shape[1];
+            *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_18 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_19)) )) -= ((*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_15 * __pyx_v_L.strides[0]) ) + __pyx_t_14 * __pyx_v_L.strides[1]) ))) * (*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_17 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_16)) ))));
           }
 
           /* "GPy/util/choleskies_cython.pyx":82
@@ -3926,15 +3916,15 @@ static PyObject *__pyx_pf_3GPy_4util_17choleskies_cython_6backprop_gradient_par(
  *     return dL_dK
  * 
  */
-          __pyx_t_38 = __pyx_v_k;
-          __pyx_t_39 = __pyx_v_k;
-          if (__pyx_t_38 < 0) __pyx_t_38 += __pyx_v_L.shape[0];
-          if (__pyx_t_39 < 0) __pyx_t_39 += __pyx_v_L.shape[1];
-          __pyx_t_40 = __pyx_v_k;
-          __pyx_t_41 = __pyx_v_k;
-          if (__pyx_t_40 < 0) __pyx_t_40 += __pyx_v_dL_dK.shape[0];
-          if (__pyx_t_41 < 0) __pyx_t_41 += __pyx_v_dL_dK.shape[1];
-          *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_40 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_41)) )) /= (2. * (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_38 * __pyx_v_L.strides[0]) ) + __pyx_t_39 * __pyx_v_L.strides[1]) ))));
+          __pyx_t_16 = __pyx_v_k;
+          __pyx_t_17 = __pyx_v_k;
+          if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_v_L.shape[0];
+          if (__pyx_t_17 < 0) __pyx_t_17 += __pyx_v_L.shape[1];
+          __pyx_t_14 = __pyx_v_k;
+          __pyx_t_15 = __pyx_v_k;
+          if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_v_dL_dK.shape[0];
+          if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_v_dL_dK.shape[1];
+          *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL_dK.data + __pyx_t_14 * __pyx_v_dL_dK.strides[0]) )) + __pyx_t_15)) )) /= (2. * (*((double *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_L.data + __pyx_t_16 * __pyx_v_L.strides[0]) ) + __pyx_t_17 * __pyx_v_L.strides[1]) ))));
         }
       }
 
@@ -4020,34 +4010,13 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
   int __pyx_t_5;
   Py_ssize_t __pyx_t_6;
   Py_ssize_t __pyx_t_7;
-  Py_ssize_t __pyx_t_8;
-  Py_ssize_t __pyx_t_9;
-  Py_ssize_t __pyx_t_10;
-  Py_ssize_t __pyx_t_11;
-  long __pyx_t_12;
-  long __pyx_t_13;
-  int __pyx_t_14;
-  Py_ssize_t __pyx_t_15;
-  Py_ssize_t __pyx_t_16;
-  Py_ssize_t __pyx_t_17;
-  Py_ssize_t __pyx_t_18;
-  Py_ssize_t __pyx_t_19;
-  Py_ssize_t __pyx_t_20;
-  Py_ssize_t __pyx_t_21;
-  Py_ssize_t __pyx_t_22;
-  double __pyx_t_23;
-  Py_ssize_t __pyx_t_24;
-  Py_ssize_t __pyx_t_25;
-  Py_ssize_t __pyx_t_26;
-  Py_ssize_t __pyx_t_27;
-  Py_ssize_t __pyx_t_28;
-  Py_ssize_t __pyx_t_29;
-  Py_ssize_t __pyx_t_30;
-  Py_ssize_t __pyx_t_31;
-  Py_ssize_t __pyx_t_32;
-  Py_ssize_t __pyx_t_33;
-  Py_ssize_t __pyx_t_34;
-  Py_ssize_t __pyx_t_35;
+  long __pyx_t_8;
+  long __pyx_t_9;
+  int __pyx_t_10;
+  double __pyx_t_11;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
   /* "GPy/util/choleskies_cython.pyx":89
  * 
@@ -4111,14 +4080,14 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  *                     beta=&beta, y=&dL[k + 1, k], incy=&N)
  * 
  */
-    __pyx_t_6 = (__pyx_v_k + 1);
-    __pyx_t_7 = (__pyx_v_k + 1);
-    if (__pyx_t_6 < 0) __pyx_t_6 += __pyx_v_dL.shape[0];
-    if (__pyx_t_7 < 0) __pyx_t_7 += __pyx_v_dL.shape[1];
-    __pyx_t_8 = (__pyx_v_k + 1);
-    __pyx_t_9 = __pyx_v_k;
-    if (__pyx_t_8 < 0) __pyx_t_8 += __pyx_v_L.shape[0];
-    if (__pyx_t_9 < 0) __pyx_t_9 += __pyx_v_L.shape[1];
+    __pyx_t_2 = (__pyx_v_k + 1);
+    __pyx_t_1 = (__pyx_v_k + 1);
+    if (__pyx_t_2 < 0) __pyx_t_2 += __pyx_v_dL.shape[0];
+    if (__pyx_t_1 < 0) __pyx_t_1 += __pyx_v_dL.shape[1];
+    __pyx_t_4 = (__pyx_v_k + 1);
+    __pyx_t_3 = __pyx_v_k;
+    if (__pyx_t_4 < 0) __pyx_t_4 += __pyx_v_L.shape[0];
+    if (__pyx_t_3 < 0) __pyx_t_3 += __pyx_v_L.shape[1];
 
     /* "GPy/util/choleskies_cython.pyx":99
  *         n = N-k-1
@@ -4127,10 +4096,10 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  * 
  *         for i in xrange(0, N - k - 1):
  */
-    __pyx_t_10 = (__pyx_v_k + 1);
-    __pyx_t_11 = __pyx_v_k;
-    if (__pyx_t_10 < 0) __pyx_t_10 += __pyx_v_dL.shape[0];
-    if (__pyx_t_11 < 0) __pyx_t_11 += __pyx_v_dL.shape[1];
+    __pyx_t_6 = (__pyx_v_k + 1);
+    __pyx_t_7 = __pyx_v_k;
+    if (__pyx_t_6 < 0) __pyx_t_6 += __pyx_v_dL.shape[0];
+    if (__pyx_t_7 < 0) __pyx_t_7 += __pyx_v_dL.shape[1];
 
     /* "GPy/util/choleskies_cython.pyx":98
  *     for k in range(N-2, -1, -1):
@@ -4139,7 +4108,7 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  *                     beta=&beta, y=&dL[k + 1, k], incy=&N)
  * 
  */
-    __pyx_f_5scipy_6linalg_11cython_blas_dsymv(((char *)"u"), (&__pyx_v_n), (&__pyx_v_alpha), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_6 * __pyx_v_dL.strides[0]) )) + __pyx_t_7)) )))), (&__pyx_v_N), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_8 * __pyx_v_L.strides[0]) )) + __pyx_t_9)) )))), (&__pyx_v_incx), (&__pyx_v_beta), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_10 * __pyx_v_dL.strides[0]) )) + __pyx_t_11)) )))), (&__pyx_v_N));
+    __pyx_f_5scipy_6linalg_11cython_blas_dsymv(((char *)"u"), (&__pyx_v_n), (&__pyx_v_alpha), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_2 * __pyx_v_dL.strides[0]) )) + __pyx_t_1)) )))), (&__pyx_v_N), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_4 * __pyx_v_L.strides[0]) )) + __pyx_t_3)) )))), (&__pyx_v_incx), (&__pyx_v_beta), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_6 * __pyx_v_dL.strides[0]) )) + __pyx_t_7)) )))), (&__pyx_v_N));
 
     /* "GPy/util/choleskies_cython.pyx":101
  *                     beta=&beta, y=&dL[k + 1, k], incy=&N)
@@ -4148,10 +4117,10 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  *             dL[k + 1 + i, k] -= dL[k + i+ 1, k + i + 1] * L[k + 1 + i, k]
  * 
  */
-    __pyx_t_12 = ((__pyx_v_N - __pyx_v_k) - 1);
-    __pyx_t_13 = __pyx_t_12;
-    for (__pyx_t_14 = 0; __pyx_t_14 < __pyx_t_13; __pyx_t_14+=1) {
-      __pyx_v_i = __pyx_t_14;
+    __pyx_t_8 = ((__pyx_v_N - __pyx_v_k) - 1);
+    __pyx_t_9 = __pyx_t_8;
+    for (__pyx_t_10 = 0; __pyx_t_10 < __pyx_t_9; __pyx_t_10+=1) {
+      __pyx_v_i = __pyx_t_10;
 
       /* "GPy/util/choleskies_cython.pyx":102
  * 
@@ -4160,19 +4129,19 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  * 
  *         scale = 1.0 / L[k, k]
  */
-      __pyx_t_15 = ((__pyx_v_k + __pyx_v_i) + 1);
-      __pyx_t_16 = ((__pyx_v_k + __pyx_v_i) + 1);
-      if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_v_dL.shape[0];
-      if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_v_dL.shape[1];
-      __pyx_t_17 = ((__pyx_v_k + 1) + __pyx_v_i);
-      __pyx_t_18 = __pyx_v_k;
-      if (__pyx_t_17 < 0) __pyx_t_17 += __pyx_v_L.shape[0];
-      if (__pyx_t_18 < 0) __pyx_t_18 += __pyx_v_L.shape[1];
-      __pyx_t_19 = ((__pyx_v_k + 1) + __pyx_v_i);
-      __pyx_t_20 = __pyx_v_k;
-      if (__pyx_t_19 < 0) __pyx_t_19 += __pyx_v_dL.shape[0];
-      if (__pyx_t_20 < 0) __pyx_t_20 += __pyx_v_dL.shape[1];
-      *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_19 * __pyx_v_dL.strides[0]) )) + __pyx_t_20)) )) -= ((*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_15 * __pyx_v_dL.strides[0]) )) + __pyx_t_16)) ))) * (*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_17 * __pyx_v_L.strides[0]) )) + __pyx_t_18)) ))));
+      __pyx_t_7 = ((__pyx_v_k + __pyx_v_i) + 1);
+      __pyx_t_6 = ((__pyx_v_k + __pyx_v_i) + 1);
+      if (__pyx_t_7 < 0) __pyx_t_7 += __pyx_v_dL.shape[0];
+      if (__pyx_t_6 < 0) __pyx_t_6 += __pyx_v_dL.shape[1];
+      __pyx_t_3 = ((__pyx_v_k + 1) + __pyx_v_i);
+      __pyx_t_4 = __pyx_v_k;
+      if (__pyx_t_3 < 0) __pyx_t_3 += __pyx_v_L.shape[0];
+      if (__pyx_t_4 < 0) __pyx_t_4 += __pyx_v_L.shape[1];
+      __pyx_t_1 = ((__pyx_v_k + 1) + __pyx_v_i);
+      __pyx_t_2 = __pyx_v_k;
+      if (__pyx_t_1 < 0) __pyx_t_1 += __pyx_v_dL.shape[0];
+      if (__pyx_t_2 < 0) __pyx_t_2 += __pyx_v_dL.shape[1];
+      *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_1 * __pyx_v_dL.strides[0]) )) + __pyx_t_2)) )) -= ((*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_7 * __pyx_v_dL.strides[0]) )) + __pyx_t_6)) ))) * (*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_3 * __pyx_v_L.strides[0]) )) + __pyx_t_4)) ))));
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     /* "GPy/util/choleskies_cython.pyx":104
@@ -4182,12 +4151,12 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  *         cblas.dscal(&n, &scale , &dL[k + 1, k], &N)
  * #
  */
-    __pyx_t_21 = __pyx_v_k;
-    __pyx_t_22 = __pyx_v_k;
-    if (__pyx_t_21 < 0) __pyx_t_21 += __pyx_v_L.shape[0];
-    if (__pyx_t_22 < 0) __pyx_t_22 += __pyx_v_L.shape[1];
-    __pyx_t_23 = (*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_21 * __pyx_v_L.strides[0]) )) + __pyx_t_22)) )));
-    if (unlikely(__pyx_t_23 == 0)) {
+    __pyx_t_4 = __pyx_v_k;
+    __pyx_t_3 = __pyx_v_k;
+    if (__pyx_t_4 < 0) __pyx_t_4 += __pyx_v_L.shape[0];
+    if (__pyx_t_3 < 0) __pyx_t_3 += __pyx_v_L.shape[1];
+    __pyx_t_11 = (*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_4 * __pyx_v_L.strides[0]) )) + __pyx_t_3)) )));
+    if (unlikely(__pyx_t_11 == 0)) {
       #ifdef WITH_THREAD
       PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
       #endif
@@ -4197,7 +4166,7 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
       #endif
       __PYX_ERR(0, 104, __pyx_L1_error)
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-    __pyx_v_scale = (1.0 / __pyx_t_23);
+    __pyx_v_scale = (1.0 / __pyx_t_11);
 
     /* "GPy/util/choleskies_cython.pyx":105
  * 
@@ -4206,11 +4175,11 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  * #
  *         dL[k, k] -= cblas.ddot(&n, &dL[k + 1, k], &N, &L[k+1, k], &incx)
  */
-    __pyx_t_24 = (__pyx_v_k + 1);
-    __pyx_t_25 = __pyx_v_k;
-    if (__pyx_t_24 < 0) __pyx_t_24 += __pyx_v_dL.shape[0];
-    if (__pyx_t_25 < 0) __pyx_t_25 += __pyx_v_dL.shape[1];
-    __pyx_f_5scipy_6linalg_11cython_blas_dscal((&__pyx_v_n), (&__pyx_v_scale), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_24 * __pyx_v_dL.strides[0]) )) + __pyx_t_25)) )))), (&__pyx_v_N));
+    __pyx_t_3 = (__pyx_v_k + 1);
+    __pyx_t_4 = __pyx_v_k;
+    if (__pyx_t_3 < 0) __pyx_t_3 += __pyx_v_dL.shape[0];
+    if (__pyx_t_4 < 0) __pyx_t_4 += __pyx_v_dL.shape[1];
+    __pyx_f_5scipy_6linalg_11cython_blas_dscal((&__pyx_v_n), (&__pyx_v_scale), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_3 * __pyx_v_dL.strides[0]) )) + __pyx_t_4)) )))), (&__pyx_v_N));
 
     /* "GPy/util/choleskies_cython.pyx":107
  *         cblas.dscal(&n, &scale , &dL[k + 1, k], &N)
@@ -4219,19 +4188,19 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  *         dL[k, k] /= (2.0 * L[k, k])
  * 
  */
-    __pyx_t_26 = (__pyx_v_k + 1);
-    __pyx_t_27 = __pyx_v_k;
-    if (__pyx_t_26 < 0) __pyx_t_26 += __pyx_v_dL.shape[0];
-    if (__pyx_t_27 < 0) __pyx_t_27 += __pyx_v_dL.shape[1];
-    __pyx_t_28 = (__pyx_v_k + 1);
-    __pyx_t_29 = __pyx_v_k;
-    if (__pyx_t_28 < 0) __pyx_t_28 += __pyx_v_L.shape[0];
-    if (__pyx_t_29 < 0) __pyx_t_29 += __pyx_v_L.shape[1];
-    __pyx_t_30 = __pyx_v_k;
-    __pyx_t_31 = __pyx_v_k;
-    if (__pyx_t_30 < 0) __pyx_t_30 += __pyx_v_dL.shape[0];
-    if (__pyx_t_31 < 0) __pyx_t_31 += __pyx_v_dL.shape[1];
-    *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_30 * __pyx_v_dL.strides[0]) )) + __pyx_t_31)) )) -= __pyx_f_5scipy_6linalg_11cython_blas_ddot((&__pyx_v_n), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_26 * __pyx_v_dL.strides[0]) )) + __pyx_t_27)) )))), (&__pyx_v_N), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_28 * __pyx_v_L.strides[0]) )) + __pyx_t_29)) )))), (&__pyx_v_incx));
+    __pyx_t_4 = (__pyx_v_k + 1);
+    __pyx_t_3 = __pyx_v_k;
+    if (__pyx_t_4 < 0) __pyx_t_4 += __pyx_v_dL.shape[0];
+    if (__pyx_t_3 < 0) __pyx_t_3 += __pyx_v_dL.shape[1];
+    __pyx_t_6 = (__pyx_v_k + 1);
+    __pyx_t_7 = __pyx_v_k;
+    if (__pyx_t_6 < 0) __pyx_t_6 += __pyx_v_L.shape[0];
+    if (__pyx_t_7 < 0) __pyx_t_7 += __pyx_v_L.shape[1];
+    __pyx_t_2 = __pyx_v_k;
+    __pyx_t_1 = __pyx_v_k;
+    if (__pyx_t_2 < 0) __pyx_t_2 += __pyx_v_dL.shape[0];
+    if (__pyx_t_1 < 0) __pyx_t_1 += __pyx_v_dL.shape[1];
+    *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_2 * __pyx_v_dL.strides[0]) )) + __pyx_t_1)) )) -= __pyx_f_5scipy_6linalg_11cython_blas_ddot((&__pyx_v_n), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_4 * __pyx_v_dL.strides[0]) )) + __pyx_t_3)) )))), (&__pyx_v_N), (&(*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_6 * __pyx_v_L.strides[0]) )) + __pyx_t_7)) )))), (&__pyx_v_incx));
 
     /* "GPy/util/choleskies_cython.pyx":108
  * #
@@ -4240,15 +4209,15 @@ static void __pyx_f_3GPy_4util_17choleskies_cython_chol_backprop(int __pyx_v_N,
  * 
  * def backprop_gradient_par_c(double[:, :] dL, double[:, :] L):
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+    __pyx_t_7 = __pyx_v_k;
+    __pyx_t_6 = __pyx_v_k;
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+    __pyx_t_4 = __pyx_v_k;
+    if (__pyx_t_3 < 0) __pyx_t_3 += __pyx_v_dL.shape[0];
+    if (__pyx_t_4 < 0) __pyx_t_4 += __pyx_v_dL.shape[1];
+    *((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_dL.data + __pyx_t_3 * __pyx_v_dL.strides[0]) )) + __pyx_t_4)) )) /= (2.0 * (*((double *) ( /* dim=1 */ ((char *) (((double *) ( /* dim=0 */ (__pyx_v_L.data + __pyx_t_7 * __pyx_v_L.strides[0]) )) + __pyx_t_6)) ))));
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         __pyx_t_2 = ((__pyx_v_i != __pyx_memoryview_thread_locks_used) != 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":384
+          /* "View.MemoryView":388
  *                     if i != __pyx_memoryview_thread_locks_used:
  *                         __pyx_memoryview_thread_locks[i], __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used] = (
  *                             __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used], __pyx_memoryview_thread_locks[i])             # <<<<<<<<<<<<<<
@@ -9793,7 +8454,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
           __pyx_t_6 = (__pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]);
           __pyx_t_7 = (__pyx_memoryview_thread_locks[__pyx_v_i]);
 
-          /* "View.MemoryView":383
+          /* "View.MemoryView":387
  *                     __pyx_memoryview_thread_locks_used -= 1
  *                     if i != __pyx_memoryview_thread_locks_used:
  *                         __pyx_memoryview_thread_locks[i], __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used] = (             # <<<<<<<<<<<<<<
@@ -9803,7 +8464,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
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           (__pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]) = __pyx_t_7;
 
-          /* "View.MemoryView":382
+          /* "View.MemoryView":386
  *                 if __pyx_memoryview_thread_locks[i] is self.lock:
  *                     __pyx_memoryview_thread_locks_used -= 1
  *                     if i != __pyx_memoryview_thread_locks_used:             # <<<<<<<<<<<<<<
@@ -9812,7 +8473,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
  */
         }
 
-        /* "View.MemoryView":385
+        /* "View.MemoryView":389
  *                         __pyx_memoryview_thread_locks[i], __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used] = (
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@@ -9821,7 +8482,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
  */
         goto __pyx_L6_break;
 
-        /* "View.MemoryView":380
+        /* "View.MemoryView":384
  *         if self.lock != NULL:
  *             for i in range(__pyx_memoryview_thread_locks_used):
  *                 if __pyx_memoryview_thread_locks[i] is self.lock:             # <<<<<<<<<<<<<<
@@ -9832,7 +8493,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
     }
     /*else*/ {
 
-      /* "View.MemoryView":387
+      /* "View.MemoryView":391
  *                     break
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  *                 PyThread_free_lock(self.lock)             # <<<<<<<<<<<<<<
@@ -9843,7 +8504,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
     }
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-    /* "View.MemoryView":378
+    /* "View.MemoryView":382
  *         cdef int i
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  *         if self.lock != NULL:             # <<<<<<<<<<<<<<
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   __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":389
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  *     cdef char *get_item_pointer(memoryview self, object index) except NULL:             # <<<<<<<<<<<<<<
@@ -9885,9 +8546,12 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
   PyObject *__pyx_t_5 = NULL;
   Py_ssize_t __pyx_t_6;
   char *__pyx_t_7;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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-  /* "View.MemoryView":391
+  /* "View.MemoryView":395
  *     cdef char *get_item_pointer(memoryview self, object index) except NULL:
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  *         cdef char *itemp = <char *> self.view.buf             # <<<<<<<<<<<<<<
@@ -9896,7 +8560,7 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
  */
   __pyx_v_itemp = ((char *)__pyx_v_self->view.buf);
 
-  /* "View.MemoryView":393
+  /* "View.MemoryView":397
  *         cdef char *itemp = <char *> self.view.buf
  * 
  *         for dim, idx in enumerate(index):             # <<<<<<<<<<<<<<
@@ -9908,26 +8572,26 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
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+    __pyx_t_3 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_index); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 397, __pyx_L1_error)
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-    __pyx_t_4 = Py_TYPE(__pyx_t_2)->tp_iternext; if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 393, __pyx_L1_error)
+    __pyx_t_4 = Py_TYPE(__pyx_t_2)->tp_iternext; if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 397, __pyx_L1_error)
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   for (;;) {
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-        __pyx_t_5 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_5); __pyx_t_3++; if (unlikely(0 < 0)) __PYX_ERR(2, 393, __pyx_L1_error)
+        __pyx_t_5 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_5); __pyx_t_3++; if (unlikely(0 < 0)) __PYX_ERR(2, 397, __pyx_L1_error)
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-        __pyx_t_5 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 393, __pyx_L1_error)
+        __pyx_t_5 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 397, __pyx_L1_error)
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         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_5); __pyx_t_3++; if (unlikely(0 < 0)) __PYX_ERR(2, 393, __pyx_L1_error)
+        __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_5); __pyx_t_3++; if (unlikely(0 < 0)) __PYX_ERR(2, 397, __pyx_L1_error)
         #else
-        __pyx_t_5 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 393, __pyx_L1_error)
+        __pyx_t_5 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 397, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_5);
         #endif
       }
@@ -9937,7 +8601,7 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(2, 393, __pyx_L1_error)
+          else __PYX_ERR(2, 397, __pyx_L1_error)
         }
         break;
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@@ -9948,18 +8612,18 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
     __pyx_v_dim = __pyx_t_1;
     __pyx_t_1 = (__pyx_t_1 + 1);
 
-    /* "View.MemoryView":394
+    /* "View.MemoryView":398
  * 
  *         for dim, idx in enumerate(index):
  *             itemp = pybuffer_index(&self.view, itemp, idx, dim)             # <<<<<<<<<<<<<<
  * 
  *         return itemp
  */
-    __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_idx); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 394, __pyx_L1_error)
-    __pyx_t_7 = __pyx_pybuffer_index((&__pyx_v_self->view), __pyx_v_itemp, __pyx_t_6, __pyx_v_dim); if (unlikely(__pyx_t_7 == ((char *)NULL))) __PYX_ERR(2, 394, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_idx); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 398, __pyx_L1_error)
+    __pyx_t_7 = __pyx_pybuffer_index((&__pyx_v_self->view), __pyx_v_itemp, __pyx_t_6, __pyx_v_dim); if (unlikely(__pyx_t_7 == ((char *)NULL))) __PYX_ERR(2, 398, __pyx_L1_error)
     __pyx_v_itemp = __pyx_t_7;
 
-    /* "View.MemoryView":393
+    /* "View.MemoryView":397
  *         cdef char *itemp = <char *> self.view.buf
  * 
  *         for dim, idx in enumerate(index):             # <<<<<<<<<<<<<<
@@ -9969,7 +8633,7 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
   }
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "View.MemoryView":396
+  /* "View.MemoryView":400
  *             itemp = pybuffer_index(&self.view, itemp, idx, dim)
  * 
  *         return itemp             # <<<<<<<<<<<<<<
@@ -9979,7 +8643,7 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
   __pyx_r = __pyx_v_itemp;
   goto __pyx_L0;
 
-  /* "View.MemoryView":389
+  /* "View.MemoryView":393
  *                 PyThread_free_lock(self.lock)
  * 
  *     cdef char *get_item_pointer(memoryview self, object index) except NULL:             # <<<<<<<<<<<<<<
@@ -9999,7 +8663,7 @@ static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__py
   return __pyx_r;
 }
 
-/* "View.MemoryView":399
+/* "View.MemoryView":403
  * 
  * 
  *     def __getitem__(memoryview self, object index):             # <<<<<<<<<<<<<<
@@ -10032,9 +8696,12 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
   PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
   char *__pyx_t_6;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__getitem__", 0);
 
-  /* "View.MemoryView":400
+  /* "View.MemoryView":404
  * 
  *     def __getitem__(memoryview self, object index):
  *         if index is Ellipsis:             # <<<<<<<<<<<<<<
@@ -10045,7 +8712,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":401
+    /* "View.MemoryView":405
  *     def __getitem__(memoryview self, object index):
  *         if index is Ellipsis:
  *             return self             # <<<<<<<<<<<<<<
@@ -10057,7 +8724,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
     __pyx_r = ((PyObject *)__pyx_v_self);
     goto __pyx_L0;
 
-    /* "View.MemoryView":400
+    /* "View.MemoryView":404
  * 
  *     def __getitem__(memoryview self, object index):
  *         if index is Ellipsis:             # <<<<<<<<<<<<<<
@@ -10066,14 +8733,14 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  */
   }
 
-  /* "View.MemoryView":403
+  /* "View.MemoryView":407
  *             return self
  * 
  *         have_slices, indices = _unellipsify(index, self.view.ndim)             # <<<<<<<<<<<<<<
  * 
  *         cdef char *itemp
  */
-  __pyx_t_3 = _unellipsify(__pyx_v_index, __pyx_v_self->view.ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 403, __pyx_L1_error)
+  __pyx_t_3 = _unellipsify(__pyx_v_index, __pyx_v_self->view.ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 407, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
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     PyObject* sequence = __pyx_t_3;
@@ -10081,7 +8748,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
     if (unlikely(size != 2)) {
       if (size > 2) __Pyx_RaiseTooManyValuesError(2);
       else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-      __PYX_ERR(2, 403, __pyx_L1_error)
+      __PYX_ERR(2, 407, __pyx_L1_error)
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     #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
     __pyx_t_4 = PyTuple_GET_ITEM(sequence, 0); 
@@ -10089,31 +8756,31 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
     __Pyx_INCREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_t_5);
     #else
-    __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 403, __pyx_L1_error)
+    __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 407, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 403, __pyx_L1_error)
+    __pyx_t_5 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 407, __pyx_L1_error)
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-    __Pyx_RaiseNoneNotIterableError(); __PYX_ERR(2, 403, __pyx_L1_error)
+    __Pyx_RaiseNoneNotIterableError(); __PYX_ERR(2, 407, __pyx_L1_error)
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   __pyx_v_have_slices = __pyx_t_4;
   __pyx_t_4 = 0;
   __pyx_v_indices = __pyx_t_5;
   __pyx_t_5 = 0;
 
-  /* "View.MemoryView":406
+  /* "View.MemoryView":410
  * 
  *         cdef char *itemp
  *         if have_slices:             # <<<<<<<<<<<<<<
  *             return memview_slice(self, indices)
  *         else:
  */
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_have_slices); if (unlikely(__pyx_t_2 < 0)) __PYX_ERR(2, 406, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_have_slices); if (unlikely(__pyx_t_2 < 0)) __PYX_ERR(2, 410, __pyx_L1_error)
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":407
+    /* "View.MemoryView":411
  *         cdef char *itemp
  *         if have_slices:
  *             return memview_slice(self, indices)             # <<<<<<<<<<<<<<
@@ -10121,13 +8788,13 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  *             itemp = self.get_item_pointer(indices)
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     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_3 = ((PyObject *)__pyx_memview_slice(__pyx_v_self, __pyx_v_indices)); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 407, __pyx_L1_error)
+    __pyx_t_3 = ((PyObject *)__pyx_memview_slice(__pyx_v_self, __pyx_v_indices)); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 411, __pyx_L1_error)
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     __pyx_r = __pyx_t_3;
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     goto __pyx_L0;
 
-    /* "View.MemoryView":406
+    /* "View.MemoryView":410
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  *         cdef char *itemp
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@@ -10136,7 +8803,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  */
   }
 
-  /* "View.MemoryView":409
+  /* "View.MemoryView":413
  *             return memview_slice(self, indices)
  *         else:
  *             itemp = self.get_item_pointer(indices)             # <<<<<<<<<<<<<<
@@ -10144,10 +8811,10 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
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  */
   /*else*/ {
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+    __pyx_t_6 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->get_item_pointer(__pyx_v_self, __pyx_v_indices); if (unlikely(__pyx_t_6 == ((char *)NULL))) __PYX_ERR(2, 413, __pyx_L1_error)
     __pyx_v_itemp = __pyx_t_6;
 
-    /* "View.MemoryView":410
+    /* "View.MemoryView":414
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  *             itemp = self.get_item_pointer(indices)
  *             return self.convert_item_to_object(itemp)             # <<<<<<<<<<<<<<
@@ -10155,14 +8822,14 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
  *     def __setitem__(memoryview self, object index, object value):
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     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_3 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->convert_item_to_object(__pyx_v_self, __pyx_v_itemp); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 410, __pyx_L1_error)
+    __pyx_t_3 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->convert_item_to_object(__pyx_v_self, __pyx_v_itemp); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 414, __pyx_L1_error)
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     __pyx_r = __pyx_t_3;
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     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":399
+  /* "View.MemoryView":403
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  * 
  *     def __getitem__(memoryview self, object index):             # <<<<<<<<<<<<<<
@@ -10185,7 +8852,7 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_4_
   return __pyx_r;
 }
 
-/* "View.MemoryView":412
+/* "View.MemoryView":416
  *             return self.convert_item_to_object(itemp)
  * 
  *     def __setitem__(memoryview self, object index, object value):             # <<<<<<<<<<<<<<
@@ -10215,10 +8882,13 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__setitem__", 0);
   __Pyx_INCREF(__pyx_v_index);
 
-  /* "View.MemoryView":413
+  /* "View.MemoryView":417
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  *     def __setitem__(memoryview self, object index, object value):
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@@ -10228,20 +8898,20 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
   __pyx_t_1 = (__pyx_v_self->view.readonly != 0);
   if (unlikely(__pyx_t_1)) {
 
-    /* "View.MemoryView":414
+    /* "View.MemoryView":418
  *     def __setitem__(memoryview self, object index, object value):
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  *             raise TypeError("Cannot assign to read-only memoryview")             # <<<<<<<<<<<<<<
  * 
  *         have_slices, index = _unellipsify(index, self.view.ndim)
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-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__15, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 414, __pyx_L1_error)
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-    __PYX_ERR(2, 414, __pyx_L1_error)
+    __PYX_ERR(2, 418, __pyx_L1_error)
 
-    /* "View.MemoryView":413
+    /* "View.MemoryView":417
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@@ -10250,14 +8920,14 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
  */
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-  /* "View.MemoryView":416
+  /* "View.MemoryView":420
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+  __pyx_t_2 = _unellipsify(__pyx_v_index, __pyx_v_self->view.ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 420, __pyx_L1_error)
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@@ -10265,7 +8935,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
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-      __PYX_ERR(2, 416, __pyx_L1_error)
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@@ -10273,67 +8943,67 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
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-    __pyx_t_3 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 416, __pyx_L1_error)
+    __pyx_t_3 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 420, __pyx_L1_error)
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-    __pyx_t_4 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 416, __pyx_L1_error)
+    __pyx_t_4 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 420, __pyx_L1_error)
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-    __Pyx_RaiseNoneNotIterableError(); __PYX_ERR(2, 416, __pyx_L1_error)
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-  /* "View.MemoryView":418
+  /* "View.MemoryView":422
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+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_have_slices); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 422, __pyx_L1_error)
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-    /* "View.MemoryView":419
+    /* "View.MemoryView":423
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-    __pyx_t_2 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->is_slice(__pyx_v_self, __pyx_v_value); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 419, __pyx_L1_error)
+    __pyx_t_2 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->is_slice(__pyx_v_self, __pyx_v_value); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 423, __pyx_L1_error)
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-    /* "View.MemoryView":420
+    /* "View.MemoryView":424
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  *                 self.setitem_slice_assignment(self[index], obj)
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-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_obj); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 420, __pyx_L1_error)
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     if (__pyx_t_1) {
 
-      /* "View.MemoryView":421
+      /* "View.MemoryView":425
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  *             else:
  *                 self.setitem_slice_assign_scalar(self[index], value)
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-      __pyx_t_2 = __Pyx_PyObject_GetItem(((PyObject *)__pyx_v_self), __pyx_v_index); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 421, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyObject_GetItem(((PyObject *)__pyx_v_self), __pyx_v_index); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 425, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->setitem_slice_assignment(__pyx_v_self, __pyx_t_2, __pyx_v_obj); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 421, __pyx_L1_error)
+      __pyx_t_4 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->setitem_slice_assignment(__pyx_v_self, __pyx_t_2, __pyx_v_obj); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 425, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
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       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-      /* "View.MemoryView":420
+      /* "View.MemoryView":424
  *         if have_slices:
  *             obj = self.is_slice(value)
  *             if obj:             # <<<<<<<<<<<<<<
@@ -10343,7 +9013,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
       goto __pyx_L5;
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-    /* "View.MemoryView":423
+    /* "View.MemoryView":427
  *                 self.setitem_slice_assignment(self[index], obj)
  *             else:
  *                 self.setitem_slice_assign_scalar(self[index], value)             # <<<<<<<<<<<<<<
@@ -10351,17 +9021,17 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
  *             self.setitem_indexed(index, value)
  */
     /*else*/ {
-      __pyx_t_4 = __Pyx_PyObject_GetItem(((PyObject *)__pyx_v_self), __pyx_v_index); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 423, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_PyObject_GetItem(((PyObject *)__pyx_v_self), __pyx_v_index); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 427, __pyx_L1_error)
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-      if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_memoryview_type))))) __PYX_ERR(2, 423, __pyx_L1_error)
-      __pyx_t_2 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->setitem_slice_assign_scalar(__pyx_v_self, ((struct __pyx_memoryview_obj *)__pyx_t_4), __pyx_v_value); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 423, __pyx_L1_error)
+      if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_memoryview_type))))) __PYX_ERR(2, 427, __pyx_L1_error)
+      __pyx_t_2 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->setitem_slice_assign_scalar(__pyx_v_self, ((struct __pyx_memoryview_obj *)__pyx_t_4), __pyx_v_value); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 427, __pyx_L1_error)
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     __pyx_L5:;
 
-    /* "View.MemoryView":418
+    /* "View.MemoryView":422
  *         have_slices, index = _unellipsify(index, self.view.ndim)
  * 
  *         if have_slices:             # <<<<<<<<<<<<<<
@@ -10371,7 +9041,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
     goto __pyx_L4;
   }
 
-  /* "View.MemoryView":425
+  /* "View.MemoryView":429
  *                 self.setitem_slice_assign_scalar(self[index], value)
  *         else:
  *             self.setitem_indexed(index, value)             # <<<<<<<<<<<<<<
@@ -10379,13 +9049,13 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
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   /*else*/ {
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+    __pyx_t_2 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->setitem_indexed(__pyx_v_self, __pyx_v_index, __pyx_v_value); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 429, __pyx_L1_error)
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   __pyx_L4:;
 
-  /* "View.MemoryView":412
+  /* "View.MemoryView":416
  *             return self.convert_item_to_object(itemp)
  * 
  *     def __setitem__(memoryview self, object index, object value):             # <<<<<<<<<<<<<<
@@ -10410,7 +9080,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_6__setit
   return __pyx_r;
 }
 
-/* "View.MemoryView":427
+/* "View.MemoryView":431
  *             self.setitem_indexed(index, value)
  * 
  *     cdef is_slice(self, obj):             # <<<<<<<<<<<<<<
@@ -10430,10 +9100,13 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
   PyObject *__pyx_t_7 = NULL;
   PyObject *__pyx_t_8 = NULL;
   int __pyx_t_9;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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-  /* "View.MemoryView":428
+  /* "View.MemoryView":432
  * 
  *     cdef is_slice(self, obj):
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@@ -10444,7 +9117,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
   __pyx_t_2 = ((!(__pyx_t_1 != 0)) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":429
+    /* "View.MemoryView":433
  *     cdef is_slice(self, obj):
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  *             try:             # <<<<<<<<<<<<<<
@@ -10460,34 +9133,34 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
       __Pyx_XGOTREF(__pyx_t_5);
       /*try:*/ {
 
-        /* "View.MemoryView":430
+        /* "View.MemoryView":434
  *         if not isinstance(obj, memoryview):
  *             try:
  *                 obj = memoryview(obj, self.flags & ~PyBUF_WRITABLE | PyBUF_ANY_CONTIGUOUS,             # <<<<<<<<<<<<<<
  *                                  self.dtype_is_object)
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+        __pyx_t_6 = __Pyx_PyInt_From_int(((__pyx_v_self->flags & (~PyBUF_WRITABLE)) | PyBUF_ANY_CONTIGUOUS)); if (unlikely(!__pyx_t_6)) __PYX_ERR(2, 434, __pyx_L4_error)
         __Pyx_GOTREF(__pyx_t_6);
 
-        /* "View.MemoryView":431
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-        __pyx_t_7 = __Pyx_PyBool_FromLong(__pyx_v_self->dtype_is_object); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 431, __pyx_L4_error)
+        __pyx_t_7 = __Pyx_PyBool_FromLong(__pyx_v_self->dtype_is_object); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 435, __pyx_L4_error)
         __Pyx_GOTREF(__pyx_t_7);
 
-        /* "View.MemoryView":430
+        /* "View.MemoryView":434
  *         if not isinstance(obj, memoryview):
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  *                                  self.dtype_is_object)
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  */
-        __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 430, __pyx_L4_error)
+        __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 434, __pyx_L4_error)
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@@ -10498,13 +9171,13 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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         __pyx_t_6 = 0;
         __pyx_t_7 = 0;
-        __pyx_t_7 = __Pyx_PyObject_Call(((PyObject *)__pyx_memoryview_type), __pyx_t_8, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 430, __pyx_L4_error)
+        __pyx_t_7 = __Pyx_PyObject_Call(((PyObject *)__pyx_memoryview_type), __pyx_t_8, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 434, __pyx_L4_error)
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-        /* "View.MemoryView":429
+        /* "View.MemoryView":433
  *     cdef is_slice(self, obj):
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@@ -10518,10 +9191,10 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-      __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0;
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-      /* "View.MemoryView":432
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@@ -10531,12 +9204,12 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-        if (__Pyx_GetException(&__pyx_t_7, &__pyx_t_8, &__pyx_t_6) < 0) __PYX_ERR(2, 432, __pyx_L6_except_error)
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-        /* "View.MemoryView":433
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@@ -10553,7 +9226,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-      /* "View.MemoryView":429
+      /* "View.MemoryView":433
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@@ -10574,7 +9247,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-    /* "View.MemoryView":428
+    /* "View.MemoryView":432
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  *     cdef is_slice(self, obj):
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@@ -10583,7 +9256,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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-  /* "View.MemoryView":435
+  /* "View.MemoryView":439
  *                 return None
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  *         return obj             # <<<<<<<<<<<<<<
@@ -10595,7 +9268,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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   goto __pyx_L0;
 
-  /* "View.MemoryView":427
+  /* "View.MemoryView":431
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  *     cdef is_slice(self, obj):             # <<<<<<<<<<<<<<
@@ -10617,7 +9290,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
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 }
 
-/* "View.MemoryView":437
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  *     cdef setitem_slice_assignment(self, dst, src):             # <<<<<<<<<<<<<<
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   __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  int __pyx_t_2;
-  int __pyx_t_3;
+  __Pyx_memviewslice *__pyx_t_1;
+  __Pyx_memviewslice *__pyx_t_2;
+  PyObject *__pyx_t_3 = NULL;
   int __pyx_t_4;
+  int __pyx_t_5;
+  int __pyx_t_6;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("setitem_slice_assignment", 0);
 
-  /* "View.MemoryView":441
+  /* "View.MemoryView":445
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  *         memoryview_copy_contents(get_slice_from_memview(src, &src_slice)[0],             # <<<<<<<<<<<<<<
  *                                  get_slice_from_memview(dst, &dst_slice)[0],
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-  if (!(likely(((__pyx_v_src) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_src, __pyx_memoryview_type))))) __PYX_ERR(2, 441, __pyx_L1_error)
+  if (!(likely(((__pyx_v_src) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_src, __pyx_memoryview_type))))) __PYX_ERR(2, 445, __pyx_L1_error)
+  __pyx_t_1 = __pyx_memoryview_get_slice_from_memoryview(((struct __pyx_memoryview_obj *)__pyx_v_src), (&__pyx_v_src_slice)); if (unlikely(__pyx_t_1 == ((__Pyx_memviewslice *)NULL))) __PYX_ERR(2, 445, __pyx_L1_error)
 
-  /* "View.MemoryView":442
+  /* "View.MemoryView":446
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  *         memoryview_copy_contents(get_slice_from_memview(src, &src_slice)[0],
  *                                  get_slice_from_memview(dst, &dst_slice)[0],             # <<<<<<<<<<<<<<
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-  if (!(likely(((__pyx_v_dst) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_dst, __pyx_memoryview_type))))) __PYX_ERR(2, 442, __pyx_L1_error)
+  if (!(likely(((__pyx_v_dst) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_dst, __pyx_memoryview_type))))) __PYX_ERR(2, 446, __pyx_L1_error)
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-    /* "View.MemoryView":456
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+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_struct, __pyx_n_s_pack); if (unlikely(!__pyx_t_6)) __PYX_ERR(2, 512, __pyx_L1_error)
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-    __pyx_t_1 = __Pyx_PyBytes_FromString(__pyx_v_self->view.format); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 508, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyBytes_FromString(__pyx_v_self->view.format); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 512, __pyx_L1_error)
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@@ -11438,7 +10132,7 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
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-      __pyx_t_4 = __Pyx_PyFunction_FastCall(__pyx_t_6, __pyx_temp+1-__pyx_t_7, 2+__pyx_t_7); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 508, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_PyFunction_FastCall(__pyx_t_6, __pyx_temp+1-__pyx_t_7, 2+__pyx_t_7); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 512, __pyx_L1_error)
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@@ -11447,14 +10141,14 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
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-      __pyx_t_4 = __Pyx_PyCFunction_FastCall(__pyx_t_6, __pyx_temp+1-__pyx_t_7, 2+__pyx_t_7); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 508, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_PyCFunction_FastCall(__pyx_t_6, __pyx_temp+1-__pyx_t_7, 2+__pyx_t_7); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 512, __pyx_L1_error)
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     #endif
     {
-      __pyx_t_8 = PyTuple_New(2+__pyx_t_7); if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 508, __pyx_L1_error)
+      __pyx_t_8 = PyTuple_New(2+__pyx_t_7); if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 512, __pyx_L1_error)
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@@ -11465,18 +10159,18 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
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       PyTuple_SET_ITEM(__pyx_t_8, 1+__pyx_t_7, __pyx_v_value);
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-      __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_8, NULL); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 508, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_8, NULL); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 512, __pyx_L1_error)
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     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    if (!(likely(PyBytes_CheckExact(__pyx_t_4))||((__pyx_t_4) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_4)->tp_name), 0))) __PYX_ERR(2, 508, __pyx_L1_error)
+    if (!(likely(PyBytes_CheckExact(__pyx_t_4))||((__pyx_t_4) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_4)->tp_name), 0))) __PYX_ERR(2, 512, __pyx_L1_error)
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   __pyx_L3:;
 
-  /* "View.MemoryView":510
+  /* "View.MemoryView":514
  *             bytesvalue = struct.pack(self.view.format, value)
  * 
  *         for i, c in enumerate(bytesvalue):             # <<<<<<<<<<<<<<
@@ -11486,7 +10180,7 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
   __pyx_t_9 = 0;
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     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(2, 510, __pyx_L1_error)
+    __PYX_ERR(2, 514, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_bytesvalue);
   __pyx_t_10 = __pyx_v_bytesvalue;
@@ -11496,7 +10190,7 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
     __pyx_t_11 = __pyx_t_14;
     __pyx_v_c = (__pyx_t_11[0]);
 
-    /* "View.MemoryView":511
+    /* "View.MemoryView":515
  * 
  *         for i, c in enumerate(bytesvalue):
  *             itemp[i] = c             # <<<<<<<<<<<<<<
@@ -11505,7 +10199,7 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
  */
     __pyx_v_i = __pyx_t_9;
 
-    /* "View.MemoryView":510
+    /* "View.MemoryView":514
  *             bytesvalue = struct.pack(self.view.format, value)
  * 
  *         for i, c in enumerate(bytesvalue):             # <<<<<<<<<<<<<<
@@ -11514,7 +10208,7 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
  */
     __pyx_t_9 = (__pyx_t_9 + 1);
 
-    /* "View.MemoryView":511
+    /* "View.MemoryView":515
  * 
  *         for i, c in enumerate(bytesvalue):
  *             itemp[i] = c             # <<<<<<<<<<<<<<
@@ -11525,7 +10219,7 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
   }
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-  /* "View.MemoryView":497
+  /* "View.MemoryView":501
  *             return result
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):             # <<<<<<<<<<<<<<
@@ -11553,7 +10247,7 @@ static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryvie
   return __pyx_r;
 }
 
-/* "View.MemoryView":514
+/* "View.MemoryView":518
  * 
  *     @cname('getbuffer')
  *     def __getbuffer__(self, Py_buffer *info, int flags):             # <<<<<<<<<<<<<<
@@ -11585,6 +10279,9 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   void *__pyx_t_6;
   int __pyx_t_7;
   Py_ssize_t __pyx_t_8;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   if (__pyx_v_info == NULL) {
     PyErr_SetString(PyExc_BufferError, "PyObject_GetBuffer: view==NULL argument is obsolete");
     return -1;
@@ -11593,7 +10290,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "View.MemoryView":515
+  /* "View.MemoryView":519
  *     @cname('getbuffer')
  *     def __getbuffer__(self, Py_buffer *info, int flags):
  *         if flags & PyBUF_WRITABLE and self.view.readonly:             # <<<<<<<<<<<<<<
@@ -11611,20 +10308,20 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_L4_bool_binop_done:;
   if (unlikely(__pyx_t_1)) {
 
-    /* "View.MemoryView":516
+    /* "View.MemoryView":520
  *     def __getbuffer__(self, Py_buffer *info, int flags):
  *         if flags & PyBUF_WRITABLE and self.view.readonly:
  *             raise ValueError("Cannot create writable memory view from read-only memoryview")             # <<<<<<<<<<<<<<
  * 
  *         if flags & PyBUF_ND:
  */
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__17, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 516, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__12, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 520, __pyx_L1_error)
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     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __PYX_ERR(2, 516, __pyx_L1_error)
+    __PYX_ERR(2, 520, __pyx_L1_error)
 
-    /* "View.MemoryView":515
+    /* "View.MemoryView":519
  *     @cname('getbuffer')
  *     def __getbuffer__(self, Py_buffer *info, int flags):
  *         if flags & PyBUF_WRITABLE and self.view.readonly:             # <<<<<<<<<<<<<<
@@ -11633,7 +10330,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
  */
   }
 
-  /* "View.MemoryView":518
+  /* "View.MemoryView":522
  *             raise ValueError("Cannot create writable memory view from read-only memoryview")
  * 
  *         if flags & PyBUF_ND:             # <<<<<<<<<<<<<<
@@ -11643,7 +10340,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_ND) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":519
+    /* "View.MemoryView":523
  * 
  *         if flags & PyBUF_ND:
  *             info.shape = self.view.shape             # <<<<<<<<<<<<<<
@@ -11653,7 +10350,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     __pyx_t_4 = __pyx_v_self->view.shape;
     __pyx_v_info->shape = __pyx_t_4;
 
-    /* "View.MemoryView":518
+    /* "View.MemoryView":522
  *             raise ValueError("Cannot create writable memory view from read-only memoryview")
  * 
  *         if flags & PyBUF_ND:             # <<<<<<<<<<<<<<
@@ -11663,7 +10360,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L6;
   }
 
-  /* "View.MemoryView":521
+  /* "View.MemoryView":525
  *             info.shape = self.view.shape
  *         else:
  *             info.shape = NULL             # <<<<<<<<<<<<<<
@@ -11675,7 +10372,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L6:;
 
-  /* "View.MemoryView":523
+  /* "View.MemoryView":527
  *             info.shape = NULL
  * 
  *         if flags & PyBUF_STRIDES:             # <<<<<<<<<<<<<<
@@ -11685,7 +10382,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_STRIDES) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":524
+    /* "View.MemoryView":528
  * 
  *         if flags & PyBUF_STRIDES:
  *             info.strides = self.view.strides             # <<<<<<<<<<<<<<
@@ -11695,7 +10392,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     __pyx_t_4 = __pyx_v_self->view.strides;
     __pyx_v_info->strides = __pyx_t_4;
 
-    /* "View.MemoryView":523
+    /* "View.MemoryView":527
  *             info.shape = NULL
  * 
  *         if flags & PyBUF_STRIDES:             # <<<<<<<<<<<<<<
@@ -11705,7 +10402,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L7;
   }
 
-  /* "View.MemoryView":526
+  /* "View.MemoryView":530
  *             info.strides = self.view.strides
  *         else:
  *             info.strides = NULL             # <<<<<<<<<<<<<<
@@ -11717,7 +10414,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L7:;
 
-  /* "View.MemoryView":528
+  /* "View.MemoryView":532
  *             info.strides = NULL
  * 
  *         if flags & PyBUF_INDIRECT:             # <<<<<<<<<<<<<<
@@ -11727,7 +10424,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_INDIRECT) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":529
+    /* "View.MemoryView":533
  * 
  *         if flags & PyBUF_INDIRECT:
  *             info.suboffsets = self.view.suboffsets             # <<<<<<<<<<<<<<
@@ -11737,7 +10434,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     __pyx_t_4 = __pyx_v_self->view.suboffsets;
     __pyx_v_info->suboffsets = __pyx_t_4;
 
-    /* "View.MemoryView":528
+    /* "View.MemoryView":532
  *             info.strides = NULL
  * 
  *         if flags & PyBUF_INDIRECT:             # <<<<<<<<<<<<<<
@@ -11747,7 +10444,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L8;
   }
 
-  /* "View.MemoryView":531
+  /* "View.MemoryView":535
  *             info.suboffsets = self.view.suboffsets
  *         else:
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -11759,7 +10456,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L8:;
 
-  /* "View.MemoryView":533
+  /* "View.MemoryView":537
  *             info.suboffsets = NULL
  * 
  *         if flags & PyBUF_FORMAT:             # <<<<<<<<<<<<<<
@@ -11769,7 +10466,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_FORMAT) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":534
+    /* "View.MemoryView":538
  * 
  *         if flags & PyBUF_FORMAT:
  *             info.format = self.view.format             # <<<<<<<<<<<<<<
@@ -11779,7 +10476,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     __pyx_t_5 = __pyx_v_self->view.format;
     __pyx_v_info->format = __pyx_t_5;
 
-    /* "View.MemoryView":533
+    /* "View.MemoryView":537
  *             info.suboffsets = NULL
  * 
  *         if flags & PyBUF_FORMAT:             # <<<<<<<<<<<<<<
@@ -11789,7 +10486,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L9;
   }
 
-  /* "View.MemoryView":536
+  /* "View.MemoryView":540
  *             info.format = self.view.format
  *         else:
  *             info.format = NULL             # <<<<<<<<<<<<<<
@@ -11801,7 +10498,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L9:;
 
-  /* "View.MemoryView":538
+  /* "View.MemoryView":542
  *             info.format = NULL
  * 
  *         info.buf = self.view.buf             # <<<<<<<<<<<<<<
@@ -11811,7 +10508,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_6 = __pyx_v_self->view.buf;
   __pyx_v_info->buf = __pyx_t_6;
 
-  /* "View.MemoryView":539
+  /* "View.MemoryView":543
  * 
  *         info.buf = self.view.buf
  *         info.ndim = self.view.ndim             # <<<<<<<<<<<<<<
@@ -11821,7 +10518,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_7 = __pyx_v_self->view.ndim;
   __pyx_v_info->ndim = __pyx_t_7;
 
-  /* "View.MemoryView":540
+  /* "View.MemoryView":544
  *         info.buf = self.view.buf
  *         info.ndim = self.view.ndim
  *         info.itemsize = self.view.itemsize             # <<<<<<<<<<<<<<
@@ -11831,7 +10528,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_8 = __pyx_v_self->view.itemsize;
   __pyx_v_info->itemsize = __pyx_t_8;
 
-  /* "View.MemoryView":541
+  /* "View.MemoryView":545
  *         info.ndim = self.view.ndim
  *         info.itemsize = self.view.itemsize
  *         info.len = self.view.len             # <<<<<<<<<<<<<<
@@ -11841,7 +10538,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_8 = __pyx_v_self->view.len;
   __pyx_v_info->len = __pyx_t_8;
 
-  /* "View.MemoryView":542
+  /* "View.MemoryView":546
  *         info.itemsize = self.view.itemsize
  *         info.len = self.view.len
  *         info.readonly = self.view.readonly             # <<<<<<<<<<<<<<
@@ -11851,7 +10548,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = __pyx_v_self->view.readonly;
   __pyx_v_info->readonly = __pyx_t_1;
 
-  /* "View.MemoryView":543
+  /* "View.MemoryView":547
  *         info.len = self.view.len
  *         info.readonly = self.view.readonly
  *         info.obj = self             # <<<<<<<<<<<<<<
@@ -11864,7 +10561,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "View.MemoryView":514
+  /* "View.MemoryView":518
  * 
  *     @cname('getbuffer')
  *     def __getbuffer__(self, Py_buffer *info, int flags):             # <<<<<<<<<<<<<<
@@ -11894,7 +10591,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   return __pyx_r;
 }
 
-/* "View.MemoryView":549
+/* "View.MemoryView":553
  * 
  *     @property
  *     def T(self):             # <<<<<<<<<<<<<<
@@ -11921,31 +10618,34 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_1T___get__(struct _
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
   int __pyx_t_2;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "View.MemoryView":550
+  /* "View.MemoryView":554
  *     @property
  *     def T(self):
  *         cdef _memoryviewslice result = memoryview_copy(self)             # <<<<<<<<<<<<<<
  *         transpose_memslice(&result.from_slice)
  *         return result
  */
-  __pyx_t_1 = __pyx_memoryview_copy_object(__pyx_v_self); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 550, __pyx_L1_error)
+  __pyx_t_1 = __pyx_memoryview_copy_object(__pyx_v_self); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 554, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_memoryviewslice_type))))) __PYX_ERR(2, 550, __pyx_L1_error)
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_memoryviewslice_type))))) __PYX_ERR(2, 554, __pyx_L1_error)
   __pyx_v_result = ((struct __pyx_memoryviewslice_obj *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "View.MemoryView":551
+  /* "View.MemoryView":555
  *     def T(self):
  *         cdef _memoryviewslice result = memoryview_copy(self)
  *         transpose_memslice(&result.from_slice)             # <<<<<<<<<<<<<<
  *         return result
  * 
  */
-  __pyx_t_2 = __pyx_memslice_transpose((&__pyx_v_result->from_slice)); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(2, 551, __pyx_L1_error)
+  __pyx_t_2 = __pyx_memslice_transpose((&__pyx_v_result->from_slice)); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(2, 555, __pyx_L1_error)
 
-  /* "View.MemoryView":552
+  /* "View.MemoryView":556
  *         cdef _memoryviewslice result = memoryview_copy(self)
  *         transpose_memslice(&result.from_slice)
  *         return result             # <<<<<<<<<<<<<<
@@ -11957,7 +10657,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_1T___get__(struct _
   __pyx_r = ((PyObject *)__pyx_v_result);
   goto __pyx_L0;
 
-  /* "View.MemoryView":549
+  /* "View.MemoryView":553
  * 
  *     @property
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-  /* "View.MemoryView":656
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-  /* "View.MemoryView":653
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-  /* "View.MemoryView":660
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-  /* "View.MemoryView":659
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 }
 
-/* "View.MemoryView":662
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   int __pyx_t_9;
   int __pyx_t_10;
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-    /* "View.MemoryView":668
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-        __pyx_t_7 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_5); __Pyx_INCREF(__pyx_t_7); __pyx_t_5++; if (unlikely(0 < 0)) __PYX_ERR(2, 675, __pyx_L1_error)
+        __pyx_t_7 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_5); __Pyx_INCREF(__pyx_t_7); __pyx_t_5++; if (unlikely(0 < 0)) __PYX_ERR(2, 679, __pyx_L1_error)
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+        __pyx_t_7 = PySequence_ITEM(__pyx_t_4, __pyx_t_5); __pyx_t_5++; if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 679, __pyx_L1_error)
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@@ -13628,7 +12383,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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-          else __PYX_ERR(2, 675, __pyx_L1_error)
+          else __PYX_ERR(2, 679, __pyx_L1_error)
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@@ -13638,13 +12393,13 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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+    __pyx_t_7 = __Pyx_PyInt_AddObjC(__pyx_t_3, __pyx_int_1, 1, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 679, __pyx_L1_error)
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-    /* "View.MemoryView":676
+    /* "View.MemoryView":680
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@@ -13655,7 +12410,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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-      /* "View.MemoryView":677
+      /* "View.MemoryView":681
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@@ -13665,27 +12420,27 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
       __pyx_t_1 = ((!(__pyx_v_seen_ellipsis != 0)) != 0);
       if (__pyx_t_1) {
 
-        /* "View.MemoryView":678
+        /* "View.MemoryView":682
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+        __pyx_t_8 = PyObject_Length(__pyx_v_tup); if (unlikely(__pyx_t_8 == ((Py_ssize_t)-1))) __PYX_ERR(2, 682, __pyx_L1_error)
+        __pyx_t_7 = PyList_New(1 * ((((__pyx_v_ndim - __pyx_t_8) + 1)<0) ? 0:((__pyx_v_ndim - __pyx_t_8) + 1))); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 682, __pyx_L1_error)
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-            __Pyx_GIVEREF(__pyx_slice__22);
-            PyList_SET_ITEM(__pyx_t_7, __pyx_temp, __pyx_slice__22);
+            __Pyx_INCREF(__pyx_slice__17);
+            __Pyx_GIVEREF(__pyx_slice__17);
+            PyList_SET_ITEM(__pyx_t_7, __pyx_temp, __pyx_slice__17);
           }
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-        __pyx_t_9 = __Pyx_PyList_Extend(__pyx_v_result, __pyx_t_7); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 678, __pyx_L1_error)
+        __pyx_t_9 = __Pyx_PyList_Extend(__pyx_v_result, __pyx_t_7); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 682, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-        /* "View.MemoryView":679
+        /* "View.MemoryView":683
  *             if not seen_ellipsis:
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  *                 seen_ellipsis = True             # <<<<<<<<<<<<<<
@@ -13694,7 +12449,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
  */
         __pyx_v_seen_ellipsis = 1;
 
-        /* "View.MemoryView":677
+        /* "View.MemoryView":681
  *     for idx, item in enumerate(tup):
  *         if item is Ellipsis:
  *             if not seen_ellipsis:             # <<<<<<<<<<<<<<
@@ -13704,7 +12459,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
         goto __pyx_L7;
       }
 
-      /* "View.MemoryView":681
+      /* "View.MemoryView":685
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  *                 result.append(slice(None))             # <<<<<<<<<<<<<<
@@ -13712,11 +12467,11 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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       /*else*/ {
-        __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_result, __pyx_slice__22); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 681, __pyx_L1_error)
+        __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_result, __pyx_slice__17); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 685, __pyx_L1_error)
       }
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-      /* "View.MemoryView":682
+      /* "View.MemoryView":686
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@@ -13725,7 +12480,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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       __pyx_v_have_slices = 1;
 
-      /* "View.MemoryView":676
+      /* "View.MemoryView":680
  *     seen_ellipsis = False
  *     for idx, item in enumerate(tup):
  *         if item is Ellipsis:             # <<<<<<<<<<<<<<
@@ -13735,7 +12490,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
       goto __pyx_L6;
     }
 
-    /* "View.MemoryView":684
+    /* "View.MemoryView":688
  *             have_slices = True
  *         else:
  *             if not isinstance(item, slice) and not PyIndex_Check(item):             # <<<<<<<<<<<<<<
@@ -13755,23 +12510,23 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
       __pyx_L9_bool_binop_done:;
       if (unlikely(__pyx_t_1)) {
 
-        /* "View.MemoryView":685
+        /* "View.MemoryView":689
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  *                 raise TypeError("Cannot index with type '%s'" % type(item))             # <<<<<<<<<<<<<<
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  *             have_slices = have_slices or isinstance(item, slice)
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-        __pyx_t_7 = __Pyx_PyString_FormatSafe(__pyx_kp_s_Cannot_index_with_type_s, ((PyObject *)Py_TYPE(__pyx_v_item))); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 685, __pyx_L1_error)
+        __pyx_t_7 = __Pyx_PyString_FormatSafe(__pyx_kp_s_Cannot_index_with_type_s, ((PyObject *)Py_TYPE(__pyx_v_item))); if (unlikely(!__pyx_t_7)) __PYX_ERR(2, 689, __pyx_L1_error)
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-        __pyx_t_11 = __Pyx_PyObject_CallOneArg(__pyx_builtin_TypeError, __pyx_t_7); if (unlikely(!__pyx_t_11)) __PYX_ERR(2, 685, __pyx_L1_error)
+        __pyx_t_11 = __Pyx_PyObject_CallOneArg(__pyx_builtin_TypeError, __pyx_t_7); if (unlikely(!__pyx_t_11)) __PYX_ERR(2, 689, __pyx_L1_error)
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         __Pyx_Raise(__pyx_t_11, 0, 0, 0);
         __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-        __PYX_ERR(2, 685, __pyx_L1_error)
+        __PYX_ERR(2, 689, __pyx_L1_error)
 
-        /* "View.MemoryView":684
+        /* "View.MemoryView":688
  *             have_slices = True
  *         else:
  *             if not isinstance(item, slice) and not PyIndex_Check(item):             # <<<<<<<<<<<<<<
@@ -13780,7 +12535,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
  */
       }
 
-      /* "View.MemoryView":687
+      /* "View.MemoryView":691
  *                 raise TypeError("Cannot index with type '%s'" % type(item))
  * 
  *             have_slices = have_slices or isinstance(item, slice)             # <<<<<<<<<<<<<<
@@ -13799,18 +12554,18 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
       __pyx_L11_bool_binop_done:;
       __pyx_v_have_slices = __pyx_t_1;
 
-      /* "View.MemoryView":688
+      /* "View.MemoryView":692
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  *             have_slices = have_slices or isinstance(item, slice)
  *             result.append(item)             # <<<<<<<<<<<<<<
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  *     nslices = ndim - len(result)
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-      __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_result, __pyx_v_item); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 688, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_result, __pyx_v_item); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 692, __pyx_L1_error)
     }
     __pyx_L6:;
 
-    /* "View.MemoryView":675
+    /* "View.MemoryView":679
  *     have_slices = False
  *     seen_ellipsis = False
  *     for idx, item in enumerate(tup):             # <<<<<<<<<<<<<<
@@ -13821,17 +12576,17 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "View.MemoryView":690
+  /* "View.MemoryView":694
  *             result.append(item)
  * 
  *     nslices = ndim - len(result)             # <<<<<<<<<<<<<<
  *     if nslices:
  *         result.extend([slice(None)] * nslices)
  */
-  __pyx_t_5 = PyList_GET_SIZE(__pyx_v_result); if (unlikely(__pyx_t_5 == ((Py_ssize_t)-1))) __PYX_ERR(2, 690, __pyx_L1_error)
+  __pyx_t_5 = PyList_GET_SIZE(__pyx_v_result); if (unlikely(__pyx_t_5 == ((Py_ssize_t)-1))) __PYX_ERR(2, 694, __pyx_L1_error)
   __pyx_v_nslices = (__pyx_v_ndim - __pyx_t_5);
 
-  /* "View.MemoryView":691
+  /* "View.MemoryView":695
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  *     nslices = ndim - len(result)
  *     if nslices:             # <<<<<<<<<<<<<<
@@ -13841,26 +12596,26 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
   __pyx_t_1 = (__pyx_v_nslices != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":692
+    /* "View.MemoryView":696
  *     nslices = ndim - len(result)
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  *     return have_slices or nslices, tuple(result)
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-    __pyx_t_3 = PyList_New(1 * ((__pyx_v_nslices<0) ? 0:__pyx_v_nslices)); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 692, __pyx_L1_error)
+    __pyx_t_3 = PyList_New(1 * ((__pyx_v_nslices<0) ? 0:__pyx_v_nslices)); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 696, __pyx_L1_error)
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     { Py_ssize_t __pyx_temp;
       for (__pyx_temp=0; __pyx_temp < __pyx_v_nslices; __pyx_temp++) {
-        __Pyx_INCREF(__pyx_slice__22);
-        __Pyx_GIVEREF(__pyx_slice__22);
-        PyList_SET_ITEM(__pyx_t_3, __pyx_temp, __pyx_slice__22);
+        __Pyx_INCREF(__pyx_slice__17);
+        __Pyx_GIVEREF(__pyx_slice__17);
+        PyList_SET_ITEM(__pyx_t_3, __pyx_temp, __pyx_slice__17);
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     }
-    __pyx_t_9 = __Pyx_PyList_Extend(__pyx_v_result, __pyx_t_3); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 692, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyList_Extend(__pyx_v_result, __pyx_t_3); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 696, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "View.MemoryView":691
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  *     nslices = ndim - len(result)
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@@ -13869,7 +12624,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
  */
   }
 
-  /* "View.MemoryView":694
+  /* "View.MemoryView":698
  *         result.extend([slice(None)] * nslices)
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  *     return have_slices or nslices, tuple(result)             # <<<<<<<<<<<<<<
@@ -13879,20 +12634,20 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
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+    __pyx_t_4 = __Pyx_PyBool_FromLong(__pyx_v_have_slices); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 698, __pyx_L1_error)
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     goto __pyx_L14_bool_binop_done;
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-  __pyx_t_4 = PyInt_FromSsize_t(__pyx_v_nslices); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 694, __pyx_L1_error)
+  __pyx_t_4 = PyInt_FromSsize_t(__pyx_v_nslices); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 698, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_3 = __pyx_t_4;
   __pyx_t_4 = 0;
   __pyx_L14_bool_binop_done:;
-  __pyx_t_4 = PyList_AsTuple(__pyx_v_result); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 694, __pyx_L1_error)
+  __pyx_t_4 = PyList_AsTuple(__pyx_v_result); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 698, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) __PYX_ERR(2, 694, __pyx_L1_error)
+  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) __PYX_ERR(2, 698, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_11);
   __Pyx_GIVEREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_t_3);
@@ -13904,7 +12659,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
   __pyx_t_11 = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":662
+  /* "View.MemoryView":666
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  * cdef tuple _unellipsify(object index, int ndim):             # <<<<<<<<<<<<<<
@@ -13930,7 +12685,7 @@ static PyObject *_unellipsify(PyObject *__pyx_v_index, int __pyx_v_ndim) {
   return __pyx_r;
 }
 
-/* "View.MemoryView":696
+/* "View.MemoryView":700
  *     return have_slices or nslices, tuple(result)
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  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):             # <<<<<<<<<<<<<<
@@ -13947,9 +12702,12 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
   Py_ssize_t *__pyx_t_3;
   int __pyx_t_4;
   PyObject *__pyx_t_5 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("assert_direct_dimensions", 0);
 
-  /* "View.MemoryView":697
+  /* "View.MemoryView":701
  * 
  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):
  *     for suboffset in suboffsets[:ndim]:             # <<<<<<<<<<<<<<
@@ -13961,7 +12719,7 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
     __pyx_t_1 = __pyx_t_3;
     __pyx_v_suboffset = (__pyx_t_1[0]);
 
-    /* "View.MemoryView":698
+    /* "View.MemoryView":702
  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):
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  *         if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -13971,20 +12729,20 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
     __pyx_t_4 = ((__pyx_v_suboffset >= 0) != 0);
     if (unlikely(__pyx_t_4)) {
 
-      /* "View.MemoryView":699
+      /* "View.MemoryView":703
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  *         if suboffset >= 0:
  *             raise ValueError("Indirect dimensions not supported")             # <<<<<<<<<<<<<<
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-      __pyx_t_5 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__23, NULL); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 699, __pyx_L1_error)
+      __pyx_t_5 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__18, NULL); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 703, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_Raise(__pyx_t_5, 0, 0, 0);
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-      __PYX_ERR(2, 699, __pyx_L1_error)
+      __PYX_ERR(2, 703, __pyx_L1_error)
 
-      /* "View.MemoryView":698
+      /* "View.MemoryView":702
  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):
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  *         if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -13994,7 +12752,7 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
     }
   }
 
-  /* "View.MemoryView":696
+  /* "View.MemoryView":700
  *     return have_slices or nslices, tuple(result)
  * 
  * cdef assert_direct_dimensions(Py_ssize_t *suboffsets, int ndim):             # <<<<<<<<<<<<<<
@@ -14015,7 +12773,7 @@ static PyObject *assert_direct_dimensions(Py_ssize_t *__pyx_v_suboffsets, int __
   return __pyx_r;
 }
 
-/* "View.MemoryView":706
+/* "View.MemoryView":710
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  * @cname('__pyx_memview_slice')
  * cdef memoryview memview_slice(memoryview memview, object indices):             # <<<<<<<<<<<<<<
@@ -14054,9 +12812,12 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   Py_ssize_t __pyx_t_10;
   int __pyx_t_11;
   Py_ssize_t __pyx_t_12;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("memview_slice", 0);
 
-  /* "View.MemoryView":707
+  /* "View.MemoryView":711
  * @cname('__pyx_memview_slice')
  * cdef memoryview memview_slice(memoryview memview, object indices):
  *     cdef int new_ndim = 0, suboffset_dim = -1, dim             # <<<<<<<<<<<<<<
@@ -14066,7 +12827,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   __pyx_v_new_ndim = 0;
   __pyx_v_suboffset_dim = -1;
 
-  /* "View.MemoryView":714
+  /* "View.MemoryView":718
  * 
  * 
  *     memset(&dst, 0, sizeof(dst))             # <<<<<<<<<<<<<<
@@ -14075,7 +12836,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
   (void)(memset((&__pyx_v_dst), 0, (sizeof(__pyx_v_dst))));
 
-  /* "View.MemoryView":718
+  /* "View.MemoryView":722
  *     cdef _memoryviewslice memviewsliceobj
  * 
  *     assert memview.view.ndim > 0             # <<<<<<<<<<<<<<
@@ -14086,12 +12847,12 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   if (unlikely(!Py_OptimizeFlag)) {
     if (unlikely(!((__pyx_v_memview->view.ndim > 0) != 0))) {
       PyErr_SetNone(PyExc_AssertionError);
-      __PYX_ERR(2, 718, __pyx_L1_error)
+      __PYX_ERR(2, 722, __pyx_L1_error)
     }
   }
   #endif
 
-  /* "View.MemoryView":720
+  /* "View.MemoryView":724
  *     assert memview.view.ndim > 0
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -14102,20 +12863,20 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":721
+    /* "View.MemoryView":725
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         memviewsliceobj = memview             # <<<<<<<<<<<<<<
  *         p_src = &memviewsliceobj.from_slice
  *     else:
  */
-    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(2, 721, __pyx_L1_error)
+    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(2, 725, __pyx_L1_error)
     __pyx_t_3 = ((PyObject *)__pyx_v_memview);
     __Pyx_INCREF(__pyx_t_3);
     __pyx_v_memviewsliceobj = ((struct __pyx_memoryviewslice_obj *)__pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "View.MemoryView":722
+    /* "View.MemoryView":726
  *     if isinstance(memview, _memoryviewslice):
  *         memviewsliceobj = memview
  *         p_src = &memviewsliceobj.from_slice             # <<<<<<<<<<<<<<
@@ -14124,7 +12885,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
     __pyx_v_p_src = (&__pyx_v_memviewsliceobj->from_slice);
 
-    /* "View.MemoryView":720
+    /* "View.MemoryView":724
  *     assert memview.view.ndim > 0
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -14134,7 +12895,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":724
+  /* "View.MemoryView":728
  *         p_src = &memviewsliceobj.from_slice
  *     else:
  *         slice_copy(memview, &src)             # <<<<<<<<<<<<<<
@@ -14144,7 +12905,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   /*else*/ {
     __pyx_memoryview_slice_copy(__pyx_v_memview, (&__pyx_v_src));
 
-    /* "View.MemoryView":725
+    /* "View.MemoryView":729
  *     else:
  *         slice_copy(memview, &src)
  *         p_src = &src             # <<<<<<<<<<<<<<
@@ -14155,7 +12916,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":731
+  /* "View.MemoryView":735
  * 
  * 
  *     dst.memview = p_src.memview             # <<<<<<<<<<<<<<
@@ -14165,7 +12926,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   __pyx_t_4 = __pyx_v_p_src->memview;
   __pyx_v_dst.memview = __pyx_t_4;
 
-  /* "View.MemoryView":732
+  /* "View.MemoryView":736
  * 
  *     dst.memview = p_src.memview
  *     dst.data = p_src.data             # <<<<<<<<<<<<<<
@@ -14175,7 +12936,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   __pyx_t_5 = __pyx_v_p_src->data;
   __pyx_v_dst.data = __pyx_t_5;
 
-  /* "View.MemoryView":737
+  /* "View.MemoryView":741
  * 
  * 
  *     cdef __Pyx_memviewslice *p_dst = &dst             # <<<<<<<<<<<<<<
@@ -14184,7 +12945,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
   __pyx_v_p_dst = (&__pyx_v_dst);
 
-  /* "View.MemoryView":738
+  /* "View.MemoryView":742
  * 
  *     cdef __Pyx_memviewslice *p_dst = &dst
  *     cdef int *p_suboffset_dim = &suboffset_dim             # <<<<<<<<<<<<<<
@@ -14193,7 +12954,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
   __pyx_v_p_suboffset_dim = (&__pyx_v_suboffset_dim);
 
-  /* "View.MemoryView":742
+  /* "View.MemoryView":746
  *     cdef bint have_start, have_stop, have_step
  * 
  *     for dim, index in enumerate(indices):             # <<<<<<<<<<<<<<
@@ -14205,26 +12966,26 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     __pyx_t_3 = __pyx_v_indices; __Pyx_INCREF(__pyx_t_3); __pyx_t_7 = 0;
     __pyx_t_8 = NULL;
   } else {
-    __pyx_t_7 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_indices); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 742, __pyx_L1_error)
+    __pyx_t_7 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_indices); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 746, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_8 = Py_TYPE(__pyx_t_3)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 742, __pyx_L1_error)
+    __pyx_t_8 = Py_TYPE(__pyx_t_3)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 746, __pyx_L1_error)
   }
   for (;;) {
     if (likely(!__pyx_t_8)) {
       if (likely(PyList_CheckExact(__pyx_t_3))) {
         if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_3)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_9 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_9); __pyx_t_7++; if (unlikely(0 < 0)) __PYX_ERR(2, 742, __pyx_L1_error)
+        __pyx_t_9 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_9); __pyx_t_7++; if (unlikely(0 < 0)) __PYX_ERR(2, 746, __pyx_L1_error)
         #else
-        __pyx_t_9 = PySequence_ITEM(__pyx_t_3, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 742, __pyx_L1_error)
+        __pyx_t_9 = PySequence_ITEM(__pyx_t_3, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 746, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_9);
         #endif
       } else {
         if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_9 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_9); __pyx_t_7++; if (unlikely(0 < 0)) __PYX_ERR(2, 742, __pyx_L1_error)
+        __pyx_t_9 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_9); __pyx_t_7++; if (unlikely(0 < 0)) __PYX_ERR(2, 746, __pyx_L1_error)
         #else
-        __pyx_t_9 = PySequence_ITEM(__pyx_t_3, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 742, __pyx_L1_error)
+        __pyx_t_9 = PySequence_ITEM(__pyx_t_3, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 746, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_9);
         #endif
       }
@@ -14234,7 +12995,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(2, 742, __pyx_L1_error)
+          else __PYX_ERR(2, 746, __pyx_L1_error)
         }
         break;
       }
@@ -14245,7 +13006,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     __pyx_v_dim = __pyx_t_6;
     __pyx_t_6 = (__pyx_t_6 + 1);
 
-    /* "View.MemoryView":743
+    /* "View.MemoryView":747
  * 
  *     for dim, index in enumerate(indices):
  *         if PyIndex_Check(index):             # <<<<<<<<<<<<<<
@@ -14255,25 +13016,25 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     __pyx_t_2 = (PyIndex_Check(__pyx_v_index) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":747
+      /* "View.MemoryView":751
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  *                 dim, new_ndim, p_suboffset_dim,
  *                 index, 0, 0, # start, stop, step             # <<<<<<<<<<<<<<
  *                 0, 0, 0, # have_{start,stop,step}
  *                 False)
  */
-      __pyx_t_10 = __Pyx_PyIndex_AsSsize_t(__pyx_v_index); if (unlikely((__pyx_t_10 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 747, __pyx_L1_error)
+      __pyx_t_10 = __Pyx_PyIndex_AsSsize_t(__pyx_v_index); if (unlikely((__pyx_t_10 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 751, __pyx_L1_error)
 
-      /* "View.MemoryView":744
+      /* "View.MemoryView":748
  *     for dim, index in enumerate(indices):
  *         if PyIndex_Check(index):
  *             slice_memviewslice(             # <<<<<<<<<<<<<<
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  *                 dim, new_ndim, p_suboffset_dim,
  */
-      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_t_10, 0, 0, 0, 0, 0, 0); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(2, 744, __pyx_L1_error)
+      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_t_10, 0, 0, 0, 0, 0, 0); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(2, 748, __pyx_L1_error)
 
-      /* "View.MemoryView":743
+      /* "View.MemoryView":747
  * 
  *     for dim, index in enumerate(indices):
  *         if PyIndex_Check(index):             # <<<<<<<<<<<<<<
@@ -14283,7 +13044,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       goto __pyx_L6;
     }
 
-    /* "View.MemoryView":750
+    /* "View.MemoryView":754
  *                 0, 0, 0, # have_{start,stop,step}
  *                 False)
  *         elif index is None:             # <<<<<<<<<<<<<<
@@ -14294,7 +13055,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     __pyx_t_1 = (__pyx_t_2 != 0);
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":751
+      /* "View.MemoryView":755
  *                 False)
  *         elif index is None:
  *             p_dst.shape[new_ndim] = 1             # <<<<<<<<<<<<<<
@@ -14303,7 +13064,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->shape[__pyx_v_new_ndim]) = 1;
 
-      /* "View.MemoryView":752
+      /* "View.MemoryView":756
  *         elif index is None:
  *             p_dst.shape[new_ndim] = 1
  *             p_dst.strides[new_ndim] = 0             # <<<<<<<<<<<<<<
@@ -14312,7 +13073,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->strides[__pyx_v_new_ndim]) = 0;
 
-      /* "View.MemoryView":753
+      /* "View.MemoryView":757
  *             p_dst.shape[new_ndim] = 1
  *             p_dst.strides[new_ndim] = 0
  *             p_dst.suboffsets[new_ndim] = -1             # <<<<<<<<<<<<<<
@@ -14321,7 +13082,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->suboffsets[__pyx_v_new_ndim]) = -1L;
 
-      /* "View.MemoryView":754
+      /* "View.MemoryView":758
  *             p_dst.strides[new_ndim] = 0
  *             p_dst.suboffsets[new_ndim] = -1
  *             new_ndim += 1             # <<<<<<<<<<<<<<
@@ -14330,7 +13091,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       __pyx_v_new_ndim = (__pyx_v_new_ndim + 1);
 
-      /* "View.MemoryView":750
+      /* "View.MemoryView":754
  *                 0, 0, 0, # have_{start,stop,step}
  *                 False)
  *         elif index is None:             # <<<<<<<<<<<<<<
@@ -14340,7 +13101,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       goto __pyx_L6;
     }
 
-    /* "View.MemoryView":756
+    /* "View.MemoryView":760
  *             new_ndim += 1
  *         else:
  *             start = index.start or 0             # <<<<<<<<<<<<<<
@@ -14348,13 +13109,13 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  *             step = index.step or 0
  */
     /*else*/ {
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 756, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 760, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 756, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 760, __pyx_L1_error)
       if (!__pyx_t_1) {
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 756, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 760, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         goto __pyx_L7_bool_binop_done;
@@ -14363,20 +13124,20 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       __pyx_L7_bool_binop_done:;
       __pyx_v_start = __pyx_t_10;
 
-      /* "View.MemoryView":757
+      /* "View.MemoryView":761
  *         else:
  *             start = index.start or 0
  *             stop = index.stop or 0             # <<<<<<<<<<<<<<
  *             step = index.step or 0
  * 
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 757, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 761, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 757, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 761, __pyx_L1_error)
       if (!__pyx_t_1) {
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 757, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 761, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         goto __pyx_L9_bool_binop_done;
@@ -14385,20 +13146,20 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       __pyx_L9_bool_binop_done:;
       __pyx_v_stop = __pyx_t_10;
 
-      /* "View.MemoryView":758
+      /* "View.MemoryView":762
  *             start = index.start or 0
  *             stop = index.stop or 0
  *             step = index.step or 0             # <<<<<<<<<<<<<<
  * 
  *             have_start = index.start is not None
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-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 758, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 762, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 758, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(2, 762, __pyx_L1_error)
       if (!__pyx_t_1) {
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 758, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 762, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         goto __pyx_L11_bool_binop_done;
@@ -14407,55 +13168,55 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       __pyx_L11_bool_binop_done:;
       __pyx_v_step = __pyx_t_10;
 
-      /* "View.MemoryView":760
+      /* "View.MemoryView":764
  *             step = index.step or 0
  * 
  *             have_start = index.start is not None             # <<<<<<<<<<<<<<
  *             have_stop = index.stop is not None
  *             have_step = index.step is not None
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 760, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 764, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
       __pyx_t_1 = (__pyx_t_9 != Py_None);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_v_have_start = __pyx_t_1;
 
-      /* "View.MemoryView":761
+      /* "View.MemoryView":765
  * 
  *             have_start = index.start is not None
  *             have_stop = index.stop is not None             # <<<<<<<<<<<<<<
  *             have_step = index.step is not None
  * 
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 761, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 765, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
       __pyx_t_1 = (__pyx_t_9 != Py_None);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_v_have_stop = __pyx_t_1;
 
-      /* "View.MemoryView":762
+      /* "View.MemoryView":766
  *             have_start = index.start is not None
  *             have_stop = index.stop is not None
  *             have_step = index.step is not None             # <<<<<<<<<<<<<<
  * 
  *             slice_memviewslice(
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 762, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(2, 766, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_9);
       __pyx_t_1 = (__pyx_t_9 != Py_None);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_v_have_step = __pyx_t_1;
 
-      /* "View.MemoryView":764
+      /* "View.MemoryView":768
  *             have_step = index.step is not None
  * 
  *             slice_memviewslice(             # <<<<<<<<<<<<<<
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  *                 dim, new_ndim, p_suboffset_dim,
  */
-      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_v_start, __pyx_v_stop, __pyx_v_step, __pyx_v_have_start, __pyx_v_have_stop, __pyx_v_have_step, 1); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(2, 764, __pyx_L1_error)
+      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_v_start, __pyx_v_stop, __pyx_v_step, __pyx_v_have_start, __pyx_v_have_stop, __pyx_v_have_step, 1); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(2, 768, __pyx_L1_error)
 
-      /* "View.MemoryView":770
+      /* "View.MemoryView":774
  *                 have_start, have_stop, have_step,
  *                 True)
  *             new_ndim += 1             # <<<<<<<<<<<<<<
@@ -14466,7 +13227,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     }
     __pyx_L6:;
 
-    /* "View.MemoryView":742
+    /* "View.MemoryView":746
  *     cdef bint have_start, have_stop, have_step
  * 
  *     for dim, index in enumerate(indices):             # <<<<<<<<<<<<<<
@@ -14476,7 +13237,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   }
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "View.MemoryView":772
+  /* "View.MemoryView":776
  *             new_ndim += 1
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -14487,7 +13248,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":773
+    /* "View.MemoryView":777
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,             # <<<<<<<<<<<<<<
@@ -14496,39 +13257,39 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
     __Pyx_XDECREF(((PyObject *)__pyx_r));
 
-    /* "View.MemoryView":774
+    /* "View.MemoryView":778
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,
  *                                     memviewsliceobj.to_object_func,             # <<<<<<<<<<<<<<
  *                                     memviewsliceobj.to_dtype_func,
  *                                     memview.dtype_is_object)
  */
-    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(2, 774, __pyx_L1_error) }
+    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(2, 778, __pyx_L1_error) }
 
-    /* "View.MemoryView":775
+    /* "View.MemoryView":779
  *         return memoryview_fromslice(dst, new_ndim,
  *                                     memviewsliceobj.to_object_func,
  *                                     memviewsliceobj.to_dtype_func,             # <<<<<<<<<<<<<<
  *                                     memview.dtype_is_object)
  *     else:
  */
-    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(2, 775, __pyx_L1_error) }
+    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(2, 779, __pyx_L1_error) }
 
-    /* "View.MemoryView":773
+    /* "View.MemoryView":777
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,             # <<<<<<<<<<<<<<
  *                                     memviewsliceobj.to_object_func,
  *                                     memviewsliceobj.to_dtype_func,
  */
-    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, __pyx_v_memviewsliceobj->to_object_func, __pyx_v_memviewsliceobj->to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 773, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, __pyx_v_memviewsliceobj->to_object_func, __pyx_v_memviewsliceobj->to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 777, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(2, 773, __pyx_L1_error)
+    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(2, 777, __pyx_L1_error)
     __pyx_r = ((struct __pyx_memoryview_obj *)__pyx_t_3);
     __pyx_t_3 = 0;
     goto __pyx_L0;
 
-    /* "View.MemoryView":772
+    /* "View.MemoryView":776
  *             new_ndim += 1
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -14537,7 +13298,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
   }
 
-  /* "View.MemoryView":778
+  /* "View.MemoryView":782
  *                                     memview.dtype_is_object)
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,             # <<<<<<<<<<<<<<
@@ -14547,30 +13308,30 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   /*else*/ {
     __Pyx_XDECREF(((PyObject *)__pyx_r));
 
-    /* "View.MemoryView":779
+    /* "View.MemoryView":783
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,
  *                                     memview.dtype_is_object)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, NULL, NULL, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 778, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, NULL, NULL, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 782, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
 
-    /* "View.MemoryView":778
+    /* "View.MemoryView":782
  *                                     memview.dtype_is_object)
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,             # <<<<<<<<<<<<<<
  *                                     memview.dtype_is_object)
  * 
  */
-    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(2, 778, __pyx_L1_error)
+    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(2, 782, __pyx_L1_error)
     __pyx_r = ((struct __pyx_memoryview_obj *)__pyx_t_3);
     __pyx_t_3 = 0;
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":706
+  /* "View.MemoryView":710
  * 
  * @cname('__pyx_memview_slice')
  * cdef memoryview memview_slice(memoryview memview, object indices):             # <<<<<<<<<<<<<<
@@ -14592,7 +13353,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   return __pyx_r;
 }
 
-/* "View.MemoryView":803
+/* "View.MemoryView":807
  * 
  * @cname('__pyx_memoryview_slice_memviewslice')
  * cdef int slice_memviewslice(             # <<<<<<<<<<<<<<
@@ -14607,8 +13368,11 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   int __pyx_t_1;
   int __pyx_t_2;
   int __pyx_t_3;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
-  /* "View.MemoryView":823
+  /* "View.MemoryView":827
  *     cdef bint negative_step
  * 
  *     if not is_slice:             # <<<<<<<<<<<<<<
@@ -14618,7 +13382,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_t_1 = ((!(__pyx_v_is_slice != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":825
+    /* "View.MemoryView":829
  *     if not is_slice:
  * 
  *         if start < 0:             # <<<<<<<<<<<<<<
@@ -14628,7 +13392,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_1 = ((__pyx_v_start < 0) != 0);
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":826
+      /* "View.MemoryView":830
  * 
  *         if start < 0:
  *             start += shape             # <<<<<<<<<<<<<<
@@ -14637,7 +13401,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_start = (__pyx_v_start + __pyx_v_shape);
 
-      /* "View.MemoryView":825
+      /* "View.MemoryView":829
  *     if not is_slice:
  * 
  *         if start < 0:             # <<<<<<<<<<<<<<
@@ -14646,7 +13410,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":827
+    /* "View.MemoryView":831
  *         if start < 0:
  *             start += shape
  *         if not 0 <= start < shape:             # <<<<<<<<<<<<<<
@@ -14660,16 +13424,16 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = ((!(__pyx_t_1 != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":828
+      /* "View.MemoryView":832
  *             start += shape
  *         if not 0 <= start < shape:
  *             _err_dim(IndexError, "Index out of bounds (axis %d)", dim)             # <<<<<<<<<<<<<<
  *     else:
  * 
  */
-      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"Index out of bounds (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 828, __pyx_L1_error)
+      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"Index out of bounds (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 832, __pyx_L1_error)
 
-      /* "View.MemoryView":827
+      /* "View.MemoryView":831
  *         if start < 0:
  *             start += shape
  *         if not 0 <= start < shape:             # <<<<<<<<<<<<<<
@@ -14678,7 +13442,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":823
+    /* "View.MemoryView":827
  *     cdef bint negative_step
  * 
  *     if not is_slice:             # <<<<<<<<<<<<<<
@@ -14688,7 +13452,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":831
+  /* "View.MemoryView":835
  *     else:
  * 
  *         negative_step = have_step != 0 and step < 0             # <<<<<<<<<<<<<<
@@ -14707,7 +13471,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_L6_bool_binop_done:;
     __pyx_v_negative_step = __pyx_t_2;
 
-    /* "View.MemoryView":833
+    /* "View.MemoryView":837
  *         negative_step = have_step != 0 and step < 0
  * 
  *         if have_step and step == 0:             # <<<<<<<<<<<<<<
@@ -14725,16 +13489,16 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_L9_bool_binop_done:;
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":834
+      /* "View.MemoryView":838
  * 
  *         if have_step and step == 0:
  *             _err_dim(ValueError, "Step may not be zero (axis %d)", dim)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Step may not be zero (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 834, __pyx_L1_error)
+      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Step may not be zero (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 838, __pyx_L1_error)
 
-      /* "View.MemoryView":833
+      /* "View.MemoryView":837
  *         negative_step = have_step != 0 and step < 0
  * 
  *         if have_step and step == 0:             # <<<<<<<<<<<<<<
@@ -14743,7 +13507,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":837
+    /* "View.MemoryView":841
  * 
  * 
  *         if have_start:             # <<<<<<<<<<<<<<
@@ -14753,7 +13517,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (__pyx_v_have_start != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":838
+      /* "View.MemoryView":842
  * 
  *         if have_start:
  *             if start < 0:             # <<<<<<<<<<<<<<
@@ -14763,7 +13527,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_start < 0) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":839
+        /* "View.MemoryView":843
  *         if have_start:
  *             if start < 0:
  *                 start += shape             # <<<<<<<<<<<<<<
@@ -14772,7 +13536,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_start = (__pyx_v_start + __pyx_v_shape);
 
-        /* "View.MemoryView":840
+        /* "View.MemoryView":844
  *             if start < 0:
  *                 start += shape
  *                 if start < 0:             # <<<<<<<<<<<<<<
@@ -14782,7 +13546,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         __pyx_t_2 = ((__pyx_v_start < 0) != 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":841
+          /* "View.MemoryView":845
  *                 start += shape
  *                 if start < 0:
  *                     start = 0             # <<<<<<<<<<<<<<
@@ -14791,7 +13555,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_start = 0;
 
-          /* "View.MemoryView":840
+          /* "View.MemoryView":844
  *             if start < 0:
  *                 start += shape
  *                 if start < 0:             # <<<<<<<<<<<<<<
@@ -14800,7 +13564,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         }
 
-        /* "View.MemoryView":838
+        /* "View.MemoryView":842
  * 
  *         if have_start:
  *             if start < 0:             # <<<<<<<<<<<<<<
@@ -14810,7 +13574,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L12;
       }
 
-      /* "View.MemoryView":842
+      /* "View.MemoryView":846
  *                 if start < 0:
  *                     start = 0
  *             elif start >= shape:             # <<<<<<<<<<<<<<
@@ -14820,7 +13584,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_start >= __pyx_v_shape) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":843
+        /* "View.MemoryView":847
  *                     start = 0
  *             elif start >= shape:
  *                 if negative_step:             # <<<<<<<<<<<<<<
@@ -14830,7 +13594,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         __pyx_t_2 = (__pyx_v_negative_step != 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":844
+          /* "View.MemoryView":848
  *             elif start >= shape:
  *                 if negative_step:
  *                     start = shape - 1             # <<<<<<<<<<<<<<
@@ -14839,7 +13603,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_start = (__pyx_v_shape - 1);
 
-          /* "View.MemoryView":843
+          /* "View.MemoryView":847
  *                     start = 0
  *             elif start >= shape:
  *                 if negative_step:             # <<<<<<<<<<<<<<
@@ -14849,7 +13613,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
           goto __pyx_L14;
         }
 
-        /* "View.MemoryView":846
+        /* "View.MemoryView":850
  *                     start = shape - 1
  *                 else:
  *                     start = shape             # <<<<<<<<<<<<<<
@@ -14861,7 +13625,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         }
         __pyx_L14:;
 
-        /* "View.MemoryView":842
+        /* "View.MemoryView":846
  *                 if start < 0:
  *                     start = 0
  *             elif start >= shape:             # <<<<<<<<<<<<<<
@@ -14871,7 +13635,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       }
       __pyx_L12:;
 
-      /* "View.MemoryView":837
+      /* "View.MemoryView":841
  * 
  * 
  *         if have_start:             # <<<<<<<<<<<<<<
@@ -14881,7 +13645,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       goto __pyx_L11;
     }
 
-    /* "View.MemoryView":848
+    /* "View.MemoryView":852
  *                     start = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -14892,7 +13656,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = (__pyx_v_negative_step != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":849
+        /* "View.MemoryView":853
  *         else:
  *             if negative_step:
  *                 start = shape - 1             # <<<<<<<<<<<<<<
@@ -14901,7 +13665,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_start = (__pyx_v_shape - 1);
 
-        /* "View.MemoryView":848
+        /* "View.MemoryView":852
  *                     start = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -14911,7 +13675,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L15;
       }
 
-      /* "View.MemoryView":851
+      /* "View.MemoryView":855
  *                 start = shape - 1
  *             else:
  *                 start = 0             # <<<<<<<<<<<<<<
@@ -14925,7 +13689,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     }
     __pyx_L11:;
 
-    /* "View.MemoryView":853
+    /* "View.MemoryView":857
  *                 start = 0
  * 
  *         if have_stop:             # <<<<<<<<<<<<<<
@@ -14935,7 +13699,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (__pyx_v_have_stop != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":854
+      /* "View.MemoryView":858
  * 
  *         if have_stop:
  *             if stop < 0:             # <<<<<<<<<<<<<<
@@ -14945,7 +13709,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_stop < 0) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":855
+        /* "View.MemoryView":859
  *         if have_stop:
  *             if stop < 0:
  *                 stop += shape             # <<<<<<<<<<<<<<
@@ -14954,7 +13718,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = (__pyx_v_stop + __pyx_v_shape);
 
-        /* "View.MemoryView":856
+        /* "View.MemoryView":860
  *             if stop < 0:
  *                 stop += shape
  *                 if stop < 0:             # <<<<<<<<<<<<<<
@@ -14964,7 +13728,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         __pyx_t_2 = ((__pyx_v_stop < 0) != 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":857
+          /* "View.MemoryView":861
  *                 stop += shape
  *                 if stop < 0:
  *                     stop = 0             # <<<<<<<<<<<<<<
@@ -14973,7 +13737,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_stop = 0;
 
-          /* "View.MemoryView":856
+          /* "View.MemoryView":860
  *             if stop < 0:
  *                 stop += shape
  *                 if stop < 0:             # <<<<<<<<<<<<<<
@@ -14982,7 +13746,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         }
 
-        /* "View.MemoryView":854
+        /* "View.MemoryView":858
  * 
  *         if have_stop:
  *             if stop < 0:             # <<<<<<<<<<<<<<
@@ -14992,7 +13756,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L17;
       }
 
-      /* "View.MemoryView":858
+      /* "View.MemoryView":862
  *                 if stop < 0:
  *                     stop = 0
  *             elif stop > shape:             # <<<<<<<<<<<<<<
@@ -15002,7 +13766,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_stop > __pyx_v_shape) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":859
+        /* "View.MemoryView":863
  *                     stop = 0
  *             elif stop > shape:
  *                 stop = shape             # <<<<<<<<<<<<<<
@@ -15011,7 +13775,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = __pyx_v_shape;
 
-        /* "View.MemoryView":858
+        /* "View.MemoryView":862
  *                 if stop < 0:
  *                     stop = 0
  *             elif stop > shape:             # <<<<<<<<<<<<<<
@@ -15021,7 +13785,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       }
       __pyx_L17:;
 
-      /* "View.MemoryView":853
+      /* "View.MemoryView":857
  *                 start = 0
  * 
  *         if have_stop:             # <<<<<<<<<<<<<<
@@ -15031,7 +13795,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       goto __pyx_L16;
     }
 
-    /* "View.MemoryView":861
+    /* "View.MemoryView":865
  *                 stop = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -15042,7 +13806,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = (__pyx_v_negative_step != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":862
+        /* "View.MemoryView":866
  *         else:
  *             if negative_step:
  *                 stop = -1             # <<<<<<<<<<<<<<
@@ -15051,7 +13815,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = -1L;
 
-        /* "View.MemoryView":861
+        /* "View.MemoryView":865
  *                 stop = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -15061,7 +13825,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L19;
       }
 
-      /* "View.MemoryView":864
+      /* "View.MemoryView":868
  *                 stop = -1
  *             else:
  *                 stop = shape             # <<<<<<<<<<<<<<
@@ -15075,7 +13839,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     }
     __pyx_L16:;
 
-    /* "View.MemoryView":866
+    /* "View.MemoryView":870
  *                 stop = shape
  * 
  *         if not have_step:             # <<<<<<<<<<<<<<
@@ -15085,7 +13849,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = ((!(__pyx_v_have_step != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":867
+      /* "View.MemoryView":871
  * 
  *         if not have_step:
  *             step = 1             # <<<<<<<<<<<<<<
@@ -15094,7 +13858,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_step = 1;
 
-      /* "View.MemoryView":866
+      /* "View.MemoryView":870
  *                 stop = shape
  * 
  *         if not have_step:             # <<<<<<<<<<<<<<
@@ -15103,7 +13867,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":871
+    /* "View.MemoryView":875
  * 
  *         with cython.cdivision(True):
  *             new_shape = (stop - start) // step             # <<<<<<<<<<<<<<
@@ -15112,7 +13876,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     __pyx_v_new_shape = ((__pyx_v_stop - __pyx_v_start) / __pyx_v_step);
 
-    /* "View.MemoryView":873
+    /* "View.MemoryView":877
  *             new_shape = (stop - start) // step
  * 
  *             if (stop - start) - step * new_shape:             # <<<<<<<<<<<<<<
@@ -15122,7 +13886,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (((__pyx_v_stop - __pyx_v_start) - (__pyx_v_step * __pyx_v_new_shape)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":874
+      /* "View.MemoryView":878
  * 
  *             if (stop - start) - step * new_shape:
  *                 new_shape += 1             # <<<<<<<<<<<<<<
@@ -15131,7 +13895,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_new_shape = (__pyx_v_new_shape + 1);
 
-      /* "View.MemoryView":873
+      /* "View.MemoryView":877
  *             new_shape = (stop - start) // step
  * 
  *             if (stop - start) - step * new_shape:             # <<<<<<<<<<<<<<
@@ -15140,7 +13904,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":876
+    /* "View.MemoryView":880
  *                 new_shape += 1
  * 
  *         if new_shape < 0:             # <<<<<<<<<<<<<<
@@ -15150,7 +13914,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = ((__pyx_v_new_shape < 0) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":877
+      /* "View.MemoryView":881
  * 
  *         if new_shape < 0:
  *             new_shape = 0             # <<<<<<<<<<<<<<
@@ -15159,7 +13923,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_new_shape = 0;
 
-      /* "View.MemoryView":876
+      /* "View.MemoryView":880
  *                 new_shape += 1
  * 
  *         if new_shape < 0:             # <<<<<<<<<<<<<<
@@ -15168,7 +13932,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":880
+    /* "View.MemoryView":884
  * 
  * 
  *         dst.strides[new_ndim] = stride * step             # <<<<<<<<<<<<<<
@@ -15177,7 +13941,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     (__pyx_v_dst->strides[__pyx_v_new_ndim]) = (__pyx_v_stride * __pyx_v_step);
 
-    /* "View.MemoryView":881
+    /* "View.MemoryView":885
  * 
  *         dst.strides[new_ndim] = stride * step
  *         dst.shape[new_ndim] = new_shape             # <<<<<<<<<<<<<<
@@ -15186,7 +13950,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     (__pyx_v_dst->shape[__pyx_v_new_ndim]) = __pyx_v_new_shape;
 
-    /* "View.MemoryView":882
+    /* "View.MemoryView":886
  *         dst.strides[new_ndim] = stride * step
  *         dst.shape[new_ndim] = new_shape
  *         dst.suboffsets[new_ndim] = suboffset             # <<<<<<<<<<<<<<
@@ -15197,7 +13961,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":885
+  /* "View.MemoryView":889
  * 
  * 
  *     if suboffset_dim[0] < 0:             # <<<<<<<<<<<<<<
@@ -15207,7 +13971,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_t_2 = (((__pyx_v_suboffset_dim[0]) < 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":886
+    /* "View.MemoryView":890
  * 
  *     if suboffset_dim[0] < 0:
  *         dst.data += start * stride             # <<<<<<<<<<<<<<
@@ -15216,7 +13980,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     __pyx_v_dst->data = (__pyx_v_dst->data + (__pyx_v_start * __pyx_v_stride));
 
-    /* "View.MemoryView":885
+    /* "View.MemoryView":889
  * 
  * 
  *     if suboffset_dim[0] < 0:             # <<<<<<<<<<<<<<
@@ -15226,7 +13990,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     goto __pyx_L23;
   }
 
-  /* "View.MemoryView":888
+  /* "View.MemoryView":892
  *         dst.data += start * stride
  *     else:
  *         dst.suboffsets[suboffset_dim[0]] += start * stride             # <<<<<<<<<<<<<<
@@ -15239,7 +14003,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   }
   __pyx_L23:;
 
-  /* "View.MemoryView":890
+  /* "View.MemoryView":894
  *         dst.suboffsets[suboffset_dim[0]] += start * stride
  * 
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -15249,7 +14013,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_t_2 = ((__pyx_v_suboffset >= 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":891
+    /* "View.MemoryView":895
  * 
  *     if suboffset >= 0:
  *         if not is_slice:             # <<<<<<<<<<<<<<
@@ -15259,7 +14023,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = ((!(__pyx_v_is_slice != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":892
+      /* "View.MemoryView":896
  *     if suboffset >= 0:
  *         if not is_slice:
  *             if new_ndim == 0:             # <<<<<<<<<<<<<<
@@ -15269,7 +14033,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       __pyx_t_2 = ((__pyx_v_new_ndim == 0) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":893
+        /* "View.MemoryView":897
  *         if not is_slice:
  *             if new_ndim == 0:
  *                 dst.data = (<char **> dst.data)[0] + suboffset             # <<<<<<<<<<<<<<
@@ -15278,7 +14042,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_dst->data = ((((char **)__pyx_v_dst->data)[0]) + __pyx_v_suboffset);
 
-        /* "View.MemoryView":892
+        /* "View.MemoryView":896
  *     if suboffset >= 0:
  *         if not is_slice:
  *             if new_ndim == 0:             # <<<<<<<<<<<<<<
@@ -15288,7 +14052,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         goto __pyx_L26;
       }
 
-      /* "View.MemoryView":895
+      /* "View.MemoryView":899
  *                 dst.data = (<char **> dst.data)[0] + suboffset
  *             else:
  *                 _err_dim(IndexError, "All dimensions preceding dimension %d "             # <<<<<<<<<<<<<<
@@ -15297,18 +14061,18 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       /*else*/ {
 
-        /* "View.MemoryView":896
+        /* "View.MemoryView":900
  *             else:
  *                 _err_dim(IndexError, "All dimensions preceding dimension %d "
  *                                      "must be indexed and not sliced", dim)             # <<<<<<<<<<<<<<
  *         else:
  *             suboffset_dim[0] = new_ndim
  */
-        __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"All dimensions preceding dimension %d must be indexed and not sliced"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 895, __pyx_L1_error)
+        __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"All dimensions preceding dimension %d must be indexed and not sliced"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 899, __pyx_L1_error)
       }
       __pyx_L26:;
 
-      /* "View.MemoryView":891
+      /* "View.MemoryView":895
  * 
  *     if suboffset >= 0:
  *         if not is_slice:             # <<<<<<<<<<<<<<
@@ -15318,7 +14082,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       goto __pyx_L25;
     }
 
-    /* "View.MemoryView":898
+    /* "View.MemoryView":902
  *                                      "must be indexed and not sliced", dim)
  *         else:
  *             suboffset_dim[0] = new_ndim             # <<<<<<<<<<<<<<
@@ -15330,7 +14094,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     }
     __pyx_L25:;
 
-    /* "View.MemoryView":890
+    /* "View.MemoryView":894
  *         dst.suboffsets[suboffset_dim[0]] += start * stride
  * 
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -15339,7 +14103,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
   }
 
-  /* "View.MemoryView":900
+  /* "View.MemoryView":904
  *             suboffset_dim[0] = new_ndim
  * 
  *     return 0             # <<<<<<<<<<<<<<
@@ -15349,7 +14113,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_r = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":803
+  /* "View.MemoryView":807
  * 
  * @cname('__pyx_memoryview_slice_memviewslice')
  * cdef int slice_memviewslice(             # <<<<<<<<<<<<<<
@@ -15373,7 +14137,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   return __pyx_r;
 }
 
-/* "View.MemoryView":906
+/* "View.MemoryView":910
  * 
  * @cname('__pyx_pybuffer_index')
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,             # <<<<<<<<<<<<<<
@@ -15393,9 +14157,12 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("pybuffer_index", 0);
 
-  /* "View.MemoryView":908
+  /* "View.MemoryView":912
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,
  *                           Py_ssize_t dim) except NULL:
  *     cdef Py_ssize_t shape, stride, suboffset = -1             # <<<<<<<<<<<<<<
@@ -15404,7 +14171,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   __pyx_v_suboffset = -1L;
 
-  /* "View.MemoryView":909
+  /* "View.MemoryView":913
  *                           Py_ssize_t dim) except NULL:
  *     cdef Py_ssize_t shape, stride, suboffset = -1
  *     cdef Py_ssize_t itemsize = view.itemsize             # <<<<<<<<<<<<<<
@@ -15414,7 +14181,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_1 = __pyx_v_view->itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":912
+  /* "View.MemoryView":916
  *     cdef char *resultp
  * 
  *     if view.ndim == 0:             # <<<<<<<<<<<<<<
@@ -15424,7 +14191,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_2 = ((__pyx_v_view->ndim == 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":913
+    /* "View.MemoryView":917
  * 
  *     if view.ndim == 0:
  *         shape = view.len / itemsize             # <<<<<<<<<<<<<<
@@ -15433,15 +14200,15 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     if (unlikely(__pyx_v_itemsize == 0)) {
       PyErr_SetString(PyExc_ZeroDivisionError, "integer division or modulo by zero");
-      __PYX_ERR(2, 913, __pyx_L1_error)
+      __PYX_ERR(2, 917, __pyx_L1_error)
     }
     else if (sizeof(Py_ssize_t) == sizeof(long) && (!(((Py_ssize_t)-1) > 0)) && unlikely(__pyx_v_itemsize == (Py_ssize_t)-1)  && unlikely(UNARY_NEG_WOULD_OVERFLOW(__pyx_v_view->len))) {
       PyErr_SetString(PyExc_OverflowError, "value too large to perform division");
-      __PYX_ERR(2, 913, __pyx_L1_error)
+      __PYX_ERR(2, 917, __pyx_L1_error)
     }
     __pyx_v_shape = __Pyx_div_Py_ssize_t(__pyx_v_view->len, __pyx_v_itemsize);
 
-    /* "View.MemoryView":914
+    /* "View.MemoryView":918
  *     if view.ndim == 0:
  *         shape = view.len / itemsize
  *         stride = itemsize             # <<<<<<<<<<<<<<
@@ -15450,7 +14217,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_stride = __pyx_v_itemsize;
 
-    /* "View.MemoryView":912
+    /* "View.MemoryView":916
  *     cdef char *resultp
  * 
  *     if view.ndim == 0:             # <<<<<<<<<<<<<<
@@ -15460,7 +14227,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":916
+  /* "View.MemoryView":920
  *         stride = itemsize
  *     else:
  *         shape = view.shape[dim]             # <<<<<<<<<<<<<<
@@ -15470,7 +14237,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   /*else*/ {
     __pyx_v_shape = (__pyx_v_view->shape[__pyx_v_dim]);
 
-    /* "View.MemoryView":917
+    /* "View.MemoryView":921
  *     else:
  *         shape = view.shape[dim]
  *         stride = view.strides[dim]             # <<<<<<<<<<<<<<
@@ -15479,7 +14246,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_stride = (__pyx_v_view->strides[__pyx_v_dim]);
 
-    /* "View.MemoryView":918
+    /* "View.MemoryView":922
  *         shape = view.shape[dim]
  *         stride = view.strides[dim]
  *         if view.suboffsets != NULL:             # <<<<<<<<<<<<<<
@@ -15489,7 +14256,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
     __pyx_t_2 = ((__pyx_v_view->suboffsets != NULL) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":919
+      /* "View.MemoryView":923
  *         stride = view.strides[dim]
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  *             suboffset = view.suboffsets[dim]             # <<<<<<<<<<<<<<
@@ -15498,7 +14265,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
       __pyx_v_suboffset = (__pyx_v_view->suboffsets[__pyx_v_dim]);
 
-      /* "View.MemoryView":918
+      /* "View.MemoryView":922
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  *         stride = view.strides[dim]
  *         if view.suboffsets != NULL:             # <<<<<<<<<<<<<<
@@ -15509,7 +14276,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":921
+  /* "View.MemoryView":925
  *             suboffset = view.suboffsets[dim]
  * 
  *     if index < 0:             # <<<<<<<<<<<<<<
@@ -15519,7 +14286,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_2 = ((__pyx_v_index < 0) != 0);
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-    /* "View.MemoryView":922
+    /* "View.MemoryView":926
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  *     if index < 0:
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@@ -15528,7 +14295,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_index = (__pyx_v_index + (__pyx_v_view->shape[__pyx_v_dim]));
 
-    /* "View.MemoryView":923
+    /* "View.MemoryView":927
  *     if index < 0:
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  *         if index < 0:             # <<<<<<<<<<<<<<
@@ -15538,26 +14305,26 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
     __pyx_t_2 = ((__pyx_v_index < 0) != 0);
     if (unlikely(__pyx_t_2)) {
 
-      /* "View.MemoryView":924
+      /* "View.MemoryView":928
  *         index += view.shape[dim]
  *         if index < 0:
  *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)             # <<<<<<<<<<<<<<
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  *     if index >= shape:
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-      __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 924, __pyx_L1_error)
+      __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 928, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 924, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 928, __pyx_L1_error)
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       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 924, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 928, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_Raise(__pyx_t_3, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __PYX_ERR(2, 924, __pyx_L1_error)
+      __PYX_ERR(2, 928, __pyx_L1_error)
 
-      /* "View.MemoryView":923
+      /* "View.MemoryView":927
  *     if index < 0:
  *         index += view.shape[dim]
  *         if index < 0:             # <<<<<<<<<<<<<<
@@ -15566,7 +14333,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     }
 
-    /* "View.MemoryView":921
+    /* "View.MemoryView":925
  *             suboffset = view.suboffsets[dim]
  * 
  *     if index < 0:             # <<<<<<<<<<<<<<
@@ -15575,7 +14342,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   }
 
-  /* "View.MemoryView":926
+  /* "View.MemoryView":930
  *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
  * 
  *     if index >= shape:             # <<<<<<<<<<<<<<
@@ -15585,26 +14352,26 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_2 = ((__pyx_v_index >= __pyx_v_shape) != 0);
   if (unlikely(__pyx_t_2)) {
 
-    /* "View.MemoryView":927
+    /* "View.MemoryView":931
  * 
  *     if index >= shape:
  *         raise IndexError("Out of bounds on buffer access (axis %d)" % dim)             # <<<<<<<<<<<<<<
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  *     resultp = bufp + index * stride
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-    __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 927, __pyx_L1_error)
+    __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 931, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
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+    __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 931, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 927, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 931, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_Raise(__pyx_t_3, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __PYX_ERR(2, 927, __pyx_L1_error)
+    __PYX_ERR(2, 931, __pyx_L1_error)
 
-    /* "View.MemoryView":926
+    /* "View.MemoryView":930
  *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
  * 
  *     if index >= shape:             # <<<<<<<<<<<<<<
@@ -15613,7 +14380,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   }
 
-  /* "View.MemoryView":929
+  /* "View.MemoryView":933
  *         raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
  * 
  *     resultp = bufp + index * stride             # <<<<<<<<<<<<<<
@@ -15622,7 +14389,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   __pyx_v_resultp = (__pyx_v_bufp + (__pyx_v_index * __pyx_v_stride));
 
-  /* "View.MemoryView":930
+  /* "View.MemoryView":934
  * 
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -15632,7 +14399,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_2 = ((__pyx_v_suboffset >= 0) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":931
+    /* "View.MemoryView":935
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:
  *         resultp = (<char **> resultp)[0] + suboffset             # <<<<<<<<<<<<<<
@@ -15641,7 +14408,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_resultp = ((((char **)__pyx_v_resultp)[0]) + __pyx_v_suboffset);
 
-    /* "View.MemoryView":930
+    /* "View.MemoryView":934
  * 
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -15650,7 +14417,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   }
 
-  /* "View.MemoryView":933
+  /* "View.MemoryView":937
  *         resultp = (<char **> resultp)[0] + suboffset
  * 
  *     return resultp             # <<<<<<<<<<<<<<
@@ -15660,7 +14427,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_r = __pyx_v_resultp;
   goto __pyx_L0;
 
-  /* "View.MemoryView":906
+  /* "View.MemoryView":910
  * 
  * @cname('__pyx_pybuffer_index')
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,             # <<<<<<<<<<<<<<
@@ -15679,7 +14446,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   return __pyx_r;
 }
 
-/* "View.MemoryView":939
+/* "View.MemoryView":943
  * 
  * @cname('__pyx_memslice_transpose')
  * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:             # <<<<<<<<<<<<<<
@@ -15703,8 +14470,11 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   int __pyx_t_7;
   int __pyx_t_8;
   int __pyx_t_9;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
-  /* "View.MemoryView":940
+  /* "View.MemoryView":944
  * @cname('__pyx_memslice_transpose')
  * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:
  *     cdef int ndim = memslice.memview.view.ndim             # <<<<<<<<<<<<<<
@@ -15714,7 +14484,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_1 = __pyx_v_memslice->memview->view.ndim;
   __pyx_v_ndim = __pyx_t_1;
 
-  /* "View.MemoryView":942
+  /* "View.MemoryView":946
  *     cdef int ndim = memslice.memview.view.ndim
  * 
  *     cdef Py_ssize_t *shape = memslice.shape             # <<<<<<<<<<<<<<
@@ -15724,7 +14494,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_2 = __pyx_v_memslice->shape;
   __pyx_v_shape = __pyx_t_2;
 
-  /* "View.MemoryView":943
+  /* "View.MemoryView":947
  * 
  *     cdef Py_ssize_t *shape = memslice.shape
  *     cdef Py_ssize_t *strides = memslice.strides             # <<<<<<<<<<<<<<
@@ -15734,7 +14504,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_2 = __pyx_v_memslice->strides;
   __pyx_v_strides = __pyx_t_2;
 
-  /* "View.MemoryView":947
+  /* "View.MemoryView":951
  * 
  *     cdef int i, j
  *     for i in range(ndim / 2):             # <<<<<<<<<<<<<<
@@ -15746,7 +14516,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   for (__pyx_t_1 = 0; __pyx_t_1 < __pyx_t_4; __pyx_t_1+=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":948
+    /* "View.MemoryView":952
  *     cdef int i, j
  *     for i in range(ndim / 2):
  *         j = ndim - 1 - i             # <<<<<<<<<<<<<<
@@ -15755,7 +14525,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
  */
     __pyx_v_j = ((__pyx_v_ndim - 1) - __pyx_v_i);
 
-    /* "View.MemoryView":949
+    /* "View.MemoryView":953
  *     for i in range(ndim / 2):
  *         j = ndim - 1 - i
  *         strides[i], strides[j] = strides[j], strides[i]             # <<<<<<<<<<<<<<
@@ -15767,7 +14537,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     (__pyx_v_strides[__pyx_v_i]) = __pyx_t_5;
     (__pyx_v_strides[__pyx_v_j]) = __pyx_t_6;
 
-    /* "View.MemoryView":950
+    /* "View.MemoryView":954
  *         j = ndim - 1 - i
  *         strides[i], strides[j] = strides[j], strides[i]
  *         shape[i], shape[j] = shape[j], shape[i]             # <<<<<<<<<<<<<<
@@ -15779,7 +14549,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     (__pyx_v_shape[__pyx_v_i]) = __pyx_t_6;
     (__pyx_v_shape[__pyx_v_j]) = __pyx_t_5;
 
-    /* "View.MemoryView":952
+    /* "View.MemoryView":956
  *         shape[i], shape[j] = shape[j], shape[i]
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  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:             # <<<<<<<<<<<<<<
@@ -15797,16 +14567,16 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     __pyx_L6_bool_binop_done:;
     if (__pyx_t_7) {
 
-      /* "View.MemoryView":953
+      /* "View.MemoryView":957
  * 
  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:
  *             _err(ValueError, "Cannot transpose memoryview with indirect dimensions")             # <<<<<<<<<<<<<<
  * 
  *     return 1
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-      __pyx_t_9 = __pyx_memoryview_err(__pyx_builtin_ValueError, ((char *)"Cannot transpose memoryview with indirect dimensions")); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 953, __pyx_L1_error)
+      __pyx_t_9 = __pyx_memoryview_err(__pyx_builtin_ValueError, ((char *)"Cannot transpose memoryview with indirect dimensions")); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(2, 957, __pyx_L1_error)
 
-      /* "View.MemoryView":952
+      /* "View.MemoryView":956
  *         shape[i], shape[j] = shape[j], shape[i]
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  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:             # <<<<<<<<<<<<<<
@@ -15816,7 +14586,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     }
   }
 
-  /* "View.MemoryView":955
+  /* "View.MemoryView":959
  *             _err(ValueError, "Cannot transpose memoryview with indirect dimensions")
  * 
  *     return 1             # <<<<<<<<<<<<<<
@@ -15826,7 +14596,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_r = 1;
   goto __pyx_L0;
 
-  /* "View.MemoryView":939
+  /* "View.MemoryView":943
  * 
  * @cname('__pyx_memslice_transpose')
  * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:             # <<<<<<<<<<<<<<
@@ -15850,7 +14620,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   return __pyx_r;
 }
 
-/* "View.MemoryView":972
+/* "View.MemoryView":976
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -15873,7 +14643,7 @@ static void __pyx_memoryviewslice___pyx_pf_15View_dot_MemoryView_16_memoryviewsl
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   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "View.MemoryView":973
+  /* "View.MemoryView":977
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@@ -15882,7 +14652,7 @@ static void __pyx_memoryviewslice___pyx_pf_15View_dot_MemoryView_16_memoryviewsl
  */
   __PYX_XDEC_MEMVIEW((&__pyx_v_self->from_slice), 1);
 
-  /* "View.MemoryView":972
+  /* "View.MemoryView":976
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -15894,7 +14664,7 @@ static void __pyx_memoryviewslice___pyx_pf_15View_dot_MemoryView_16_memoryviewsl
   __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":975
+/* "View.MemoryView":979
  *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)
  * 
  *     cdef convert_item_to_object(self, char *itemp):             # <<<<<<<<<<<<<<
@@ -15907,9 +14677,12 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
   PyObject *__pyx_t_2 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("convert_item_to_object", 0);
 
-  /* "View.MemoryView":976
+  /* "View.MemoryView":980
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  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:             # <<<<<<<<<<<<<<
@@ -15919,7 +14692,7 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
   __pyx_t_1 = ((__pyx_v_self->to_object_func != NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":977
+    /* "View.MemoryView":981
  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:
  *             return self.to_object_func(itemp)             # <<<<<<<<<<<<<<
@@ -15927,13 +14700,13 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
  *             return memoryview.convert_item_to_object(self, itemp)
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = __pyx_v_self->to_object_func(__pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 977, __pyx_L1_error)
+    __pyx_t_2 = __pyx_v_self->to_object_func(__pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 981, __pyx_L1_error)
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     __pyx_r = __pyx_t_2;
     __pyx_t_2 = 0;
     goto __pyx_L0;
 
-    /* "View.MemoryView":976
+    /* "View.MemoryView":980
  * 
  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:             # <<<<<<<<<<<<<<
@@ -15942,7 +14715,7 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
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   }
 
-  /* "View.MemoryView":979
+  /* "View.MemoryView":983
  *             return self.to_object_func(itemp)
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  *             return memoryview.convert_item_to_object(self, itemp)             # <<<<<<<<<<<<<<
@@ -15951,14 +14724,14 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
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-    __pyx_t_2 = __pyx_memoryview_convert_item_to_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 979, __pyx_L1_error)
+    __pyx_t_2 = __pyx_memoryview_convert_item_to_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 983, __pyx_L1_error)
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     __pyx_r = __pyx_t_2;
     __pyx_t_2 = 0;
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":975
+  /* "View.MemoryView":979
  *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)
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  *     cdef convert_item_to_object(self, char *itemp):             # <<<<<<<<<<<<<<
@@ -15977,7 +14750,7 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
   return __pyx_r;
 }
 
-/* "View.MemoryView":981
+/* "View.MemoryView":985
  *             return memoryview.convert_item_to_object(self, itemp)
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  *     cdef assign_item_from_object(self, char *itemp, object value):             # <<<<<<<<<<<<<<
@@ -15991,9 +14764,12 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
   int __pyx_t_1;
   int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("assign_item_from_object", 0);
 
-  /* "View.MemoryView":982
+  /* "View.MemoryView":986
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):
  *         if self.to_dtype_func != NULL:             # <<<<<<<<<<<<<<
@@ -16003,16 +14779,16 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
   __pyx_t_1 = ((__pyx_v_self->to_dtype_func != NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":983
+    /* "View.MemoryView":987
  *     cdef assign_item_from_object(self, char *itemp, object value):
  *         if self.to_dtype_func != NULL:
  *             self.to_dtype_func(itemp, value)             # <<<<<<<<<<<<<<
  *         else:
  *             memoryview.assign_item_from_object(self, itemp, value)
  */
-    __pyx_t_2 = __pyx_v_self->to_dtype_func(__pyx_v_itemp, __pyx_v_value); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(2, 983, __pyx_L1_error)
+    __pyx_t_2 = __pyx_v_self->to_dtype_func(__pyx_v_itemp, __pyx_v_value); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(2, 987, __pyx_L1_error)
 
-    /* "View.MemoryView":982
+    /* "View.MemoryView":986
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):
  *         if self.to_dtype_func != NULL:             # <<<<<<<<<<<<<<
@@ -16022,7 +14798,7 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":985
+  /* "View.MemoryView":989
  *             self.to_dtype_func(itemp, value)
  *         else:
  *             memoryview.assign_item_from_object(self, itemp, value)             # <<<<<<<<<<<<<<
@@ -16030,13 +14806,13 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
  *     @property
  */
   /*else*/ {
-    __pyx_t_3 = __pyx_memoryview_assign_item_from_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp, __pyx_v_value); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 985, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_assign_item_from_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp, __pyx_v_value); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 989, __pyx_L1_error)
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     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":981
+  /* "View.MemoryView":985
  *             return memoryview.convert_item_to_object(self, itemp)
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):             # <<<<<<<<<<<<<<
@@ -16057,7 +14833,7 @@ static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memo
   return __pyx_r;
 }
 
-/* "View.MemoryView":988
+/* "View.MemoryView":992
  * 
  *     @property
  *     def base(self):             # <<<<<<<<<<<<<<
@@ -16083,7 +14859,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_16_memoryviewslice_4base___get__
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "View.MemoryView":989
+  /* "View.MemoryView":993
  *     @property
  *     def base(self):
  *         return self.from_object             # <<<<<<<<<<<<<<
@@ -16095,7 +14871,7 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_16_memoryviewslice_4base___get__
   __pyx_r = __pyx_v_self->from_object;
   goto __pyx_L0;
 
-  /* "View.MemoryView":988
+  /* "View.MemoryView":992
  * 
  *     @property
  *     def base(self):             # <<<<<<<<<<<<<<
@@ -16133,6 +14909,9 @@ static PyObject *__pyx_pf___pyx_memoryviewslice___reduce_cython__(CYTHON_UNUSED
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__reduce_cython__", 0);
 
   /* "(tree fragment)":2
@@ -16141,7 +14920,7 @@ static PyObject *__pyx_pf___pyx_memoryviewslice___reduce_cython__(CYTHON_UNUSED
  * def __setstate_cython__(self, __pyx_state):
  *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")
  */
-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__24, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 2, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__19, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 2, __pyx_L1_error)
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   __Pyx_Raise(__pyx_t_1, 0, 0, 0);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -16187,6 +14966,9 @@ static PyObject *__pyx_pf___pyx_memoryviewslice_2__setstate_cython__(CYTHON_UNUS
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__setstate_cython__", 0);
 
   /* "(tree fragment)":4
@@ -16194,7 +14976,7 @@ static PyObject *__pyx_pf___pyx_memoryviewslice_2__setstate_cython__(CYTHON_UNUS
  * def __setstate_cython__(self, __pyx_state):
  *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")             # <<<<<<<<<<<<<<
  */
-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__25, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 4, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__20, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 4, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_Raise(__pyx_t_1, 0, 0, 0);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -16217,7 +14999,7 @@ static PyObject *__pyx_pf___pyx_memoryviewslice_2__setstate_cython__(CYTHON_UNUS
   return __pyx_r;
 }
 
-/* "View.MemoryView":995
+/* "View.MemoryView":999
  * 
  * @cname('__pyx_memoryview_fromslice')
  * cdef memoryview_fromslice(__Pyx_memviewslice memviewslice,             # <<<<<<<<<<<<<<
@@ -16240,9 +15022,12 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   Py_ssize_t *__pyx_t_7;
   Py_ssize_t *__pyx_t_8;
   Py_ssize_t __pyx_t_9;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("memoryview_fromslice", 0);
 
-  /* "View.MemoryView":1003
+  /* "View.MemoryView":1007
  *     cdef _memoryviewslice result
  * 
  *     if <PyObject *> memviewslice.memview == Py_None:             # <<<<<<<<<<<<<<
@@ -16252,7 +15037,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_1 = ((((PyObject *)__pyx_v_memviewslice.memview) == Py_None) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1004
+    /* "View.MemoryView":1008
  * 
  *     if <PyObject *> memviewslice.memview == Py_None:
  *         return None             # <<<<<<<<<<<<<<
@@ -16263,7 +15048,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
     __pyx_r = Py_None; __Pyx_INCREF(Py_None);
     goto __pyx_L0;
 
-    /* "View.MemoryView":1003
+    /* "View.MemoryView":1007
  *     cdef _memoryviewslice result
  * 
  *     if <PyObject *> memviewslice.memview == Py_None:             # <<<<<<<<<<<<<<
@@ -16272,16 +15057,16 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   }
 
-  /* "View.MemoryView":1009
+  /* "View.MemoryView":1013
  * 
  * 
  *     result = _memoryviewslice(None, 0, dtype_is_object)             # <<<<<<<<<<<<<<
  * 
  *     result.from_slice = memviewslice
  */
-  __pyx_t_2 = __Pyx_PyBool_FromLong(__pyx_v_dtype_is_object); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1009, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyBool_FromLong(__pyx_v_dtype_is_object); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1013, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1009, __pyx_L1_error)
+  __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1013, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(Py_None);
@@ -16292,13 +15077,13 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __Pyx_GIVEREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_t_2);
   __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_PyObject_Call(((PyObject *)__pyx_memoryviewslice_type), __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1009, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_Call(((PyObject *)__pyx_memoryviewslice_type), __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1013, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_v_result = ((struct __pyx_memoryviewslice_obj *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "View.MemoryView":1011
+  /* "View.MemoryView":1015
  *     result = _memoryviewslice(None, 0, dtype_is_object)
  * 
  *     result.from_slice = memviewslice             # <<<<<<<<<<<<<<
@@ -16307,7 +15092,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->from_slice = __pyx_v_memviewslice;
 
-  /* "View.MemoryView":1012
+  /* "View.MemoryView":1016
  * 
  *     result.from_slice = memviewslice
  *     __PYX_INC_MEMVIEW(&memviewslice, 1)             # <<<<<<<<<<<<<<
@@ -16316,14 +15101,14 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __PYX_INC_MEMVIEW((&__pyx_v_memviewslice), 1);
 
-  /* "View.MemoryView":1014
+  /* "View.MemoryView":1018
  *     __PYX_INC_MEMVIEW(&memviewslice, 1)
  * 
  *     result.from_object = (<memoryview> memviewslice.memview).base             # <<<<<<<<<<<<<<
  *     result.typeinfo = memviewslice.memview.typeinfo
  * 
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_memviewslice.memview), __pyx_n_s_base); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1014, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_memviewslice.memview), __pyx_n_s_base); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1018, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __Pyx_GOTREF(__pyx_v_result->from_object);
@@ -16331,7 +15116,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_v_result->from_object = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "View.MemoryView":1015
+  /* "View.MemoryView":1019
  * 
  *     result.from_object = (<memoryview> memviewslice.memview).base
  *     result.typeinfo = memviewslice.memview.typeinfo             # <<<<<<<<<<<<<<
@@ -16341,7 +15126,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_4 = __pyx_v_memviewslice.memview->typeinfo;
   __pyx_v_result->__pyx_base.typeinfo = __pyx_t_4;
 
-  /* "View.MemoryView":1017
+  /* "View.MemoryView":1021
  *     result.typeinfo = memviewslice.memview.typeinfo
  * 
  *     result.view = memviewslice.memview.view             # <<<<<<<<<<<<<<
@@ -16351,7 +15136,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_5 = __pyx_v_memviewslice.memview->view;
   __pyx_v_result->__pyx_base.view = __pyx_t_5;
 
-  /* "View.MemoryView":1018
+  /* "View.MemoryView":1022
  * 
  *     result.view = memviewslice.memview.view
  *     result.view.buf = <void *> memviewslice.data             # <<<<<<<<<<<<<<
@@ -16360,7 +15145,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.buf = ((void *)__pyx_v_memviewslice.data);
 
-  /* "View.MemoryView":1019
+  /* "View.MemoryView":1023
  *     result.view = memviewslice.memview.view
  *     result.view.buf = <void *> memviewslice.data
  *     result.view.ndim = ndim             # <<<<<<<<<<<<<<
@@ -16369,7 +15154,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.ndim = __pyx_v_ndim;
 
-  /* "View.MemoryView":1020
+  /* "View.MemoryView":1024
  *     result.view.buf = <void *> memviewslice.data
  *     result.view.ndim = ndim
  *     (<__pyx_buffer *> &result.view).obj = Py_None             # <<<<<<<<<<<<<<
@@ -16378,7 +15163,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   ((Py_buffer *)(&__pyx_v_result->__pyx_base.view))->obj = Py_None;
 
-  /* "View.MemoryView":1021
+  /* "View.MemoryView":1025
  *     result.view.ndim = ndim
  *     (<__pyx_buffer *> &result.view).obj = Py_None
  *     Py_INCREF(Py_None)             # <<<<<<<<<<<<<<
@@ -16387,7 +15172,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   Py_INCREF(Py_None);
 
-  /* "View.MemoryView":1023
+  /* "View.MemoryView":1027
  *     Py_INCREF(Py_None)
  * 
  *     if (<memoryview>memviewslice.memview).flags & PyBUF_WRITABLE:             # <<<<<<<<<<<<<<
@@ -16397,7 +15182,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_1 = ((((struct __pyx_memoryview_obj *)__pyx_v_memviewslice.memview)->flags & PyBUF_WRITABLE) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1024
+    /* "View.MemoryView":1028
  * 
  *     if (<memoryview>memviewslice.memview).flags & PyBUF_WRITABLE:
  *         result.flags = PyBUF_RECORDS             # <<<<<<<<<<<<<<
@@ -16406,7 +15191,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
     __pyx_v_result->__pyx_base.flags = PyBUF_RECORDS;
 
-    /* "View.MemoryView":1023
+    /* "View.MemoryView":1027
  *     Py_INCREF(Py_None)
  * 
  *     if (<memoryview>memviewslice.memview).flags & PyBUF_WRITABLE:             # <<<<<<<<<<<<<<
@@ -16416,7 +15201,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
     goto __pyx_L4;
   }
 
-  /* "View.MemoryView":1026
+  /* "View.MemoryView":1030
  *         result.flags = PyBUF_RECORDS
  *     else:
  *         result.flags = PyBUF_RECORDS_RO             # <<<<<<<<<<<<<<
@@ -16428,7 +15213,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   }
   __pyx_L4:;
 
-  /* "View.MemoryView":1028
+  /* "View.MemoryView":1032
  *         result.flags = PyBUF_RECORDS_RO
  * 
  *     result.view.shape = <Py_ssize_t *> result.from_slice.shape             # <<<<<<<<<<<<<<
@@ -16437,7 +15222,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.shape = ((Py_ssize_t *)__pyx_v_result->from_slice.shape);
 
-  /* "View.MemoryView":1029
+  /* "View.MemoryView":1033
  * 
  *     result.view.shape = <Py_ssize_t *> result.from_slice.shape
  *     result.view.strides = <Py_ssize_t *> result.from_slice.strides             # <<<<<<<<<<<<<<
@@ -16446,7 +15231,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.strides = ((Py_ssize_t *)__pyx_v_result->from_slice.strides);
 
-  /* "View.MemoryView":1032
+  /* "View.MemoryView":1036
  * 
  * 
  *     result.view.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -16455,7 +15240,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->__pyx_base.view.suboffsets = NULL;
 
-  /* "View.MemoryView":1033
+  /* "View.MemoryView":1037
  * 
  *     result.view.suboffsets = NULL
  *     for suboffset in result.from_slice.suboffsets[:ndim]:             # <<<<<<<<<<<<<<
@@ -16467,7 +15252,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
     __pyx_t_6 = __pyx_t_8;
     __pyx_v_suboffset = (__pyx_t_6[0]);
 
-    /* "View.MemoryView":1034
+    /* "View.MemoryView":1038
  *     result.view.suboffsets = NULL
  *     for suboffset in result.from_slice.suboffsets[:ndim]:
  *         if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -16477,7 +15262,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
     __pyx_t_1 = ((__pyx_v_suboffset >= 0) != 0);
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":1035
+      /* "View.MemoryView":1039
  *     for suboffset in result.from_slice.suboffsets[:ndim]:
  *         if suboffset >= 0:
  *             result.view.suboffsets = <Py_ssize_t *> result.from_slice.suboffsets             # <<<<<<<<<<<<<<
@@ -16486,7 +15271,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
       __pyx_v_result->__pyx_base.view.suboffsets = ((Py_ssize_t *)__pyx_v_result->from_slice.suboffsets);
 
-      /* "View.MemoryView":1036
+      /* "View.MemoryView":1040
  *         if suboffset >= 0:
  *             result.view.suboffsets = <Py_ssize_t *> result.from_slice.suboffsets
  *             break             # <<<<<<<<<<<<<<
@@ -16495,7 +15280,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
       goto __pyx_L6_break;
 
-      /* "View.MemoryView":1034
+      /* "View.MemoryView":1038
  *     result.view.suboffsets = NULL
  *     for suboffset in result.from_slice.suboffsets[:ndim]:
  *         if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -16506,7 +15291,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   }
   __pyx_L6_break:;
 
-  /* "View.MemoryView":1038
+  /* "View.MemoryView":1042
  *             break
  * 
  *     result.view.len = result.view.itemsize             # <<<<<<<<<<<<<<
@@ -16516,7 +15301,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_9 = __pyx_v_result->__pyx_base.view.itemsize;
   __pyx_v_result->__pyx_base.view.len = __pyx_t_9;
 
-  /* "View.MemoryView":1039
+  /* "View.MemoryView":1043
  * 
  *     result.view.len = result.view.itemsize
  *     for length in result.view.shape[:ndim]:             # <<<<<<<<<<<<<<
@@ -16526,29 +15311,29 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_t_7 = (__pyx_v_result->__pyx_base.view.shape + __pyx_v_ndim);
   for (__pyx_t_8 = __pyx_v_result->__pyx_base.view.shape; __pyx_t_8 < __pyx_t_7; __pyx_t_8++) {
     __pyx_t_6 = __pyx_t_8;
-    __pyx_t_2 = PyInt_FromSsize_t((__pyx_t_6[0])); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1039, __pyx_L1_error)
+    __pyx_t_2 = PyInt_FromSsize_t((__pyx_t_6[0])); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1043, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_XDECREF_SET(__pyx_v_length, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "View.MemoryView":1040
+    /* "View.MemoryView":1044
  *     result.view.len = result.view.itemsize
  *     for length in result.view.shape[:ndim]:
  *         result.view.len *= length             # <<<<<<<<<<<<<<
  * 
  *     result.to_object_func = to_object_func
  */
-    __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_result->__pyx_base.view.len); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1040, __pyx_L1_error)
+    __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_result->__pyx_base.view.len); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1044, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyNumber_InPlaceMultiply(__pyx_t_2, __pyx_v_length); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1040, __pyx_L1_error)
+    __pyx_t_3 = PyNumber_InPlaceMultiply(__pyx_t_2, __pyx_v_length); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1044, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_9 = __Pyx_PyIndex_AsSsize_t(__pyx_t_3); if (unlikely((__pyx_t_9 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 1040, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyIndex_AsSsize_t(__pyx_t_3); if (unlikely((__pyx_t_9 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(2, 1044, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_v_result->__pyx_base.view.len = __pyx_t_9;
   }
 
-  /* "View.MemoryView":1042
+  /* "View.MemoryView":1046
  *         result.view.len *= length
  * 
  *     result.to_object_func = to_object_func             # <<<<<<<<<<<<<<
@@ -16557,7 +15342,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->to_object_func = __pyx_v_to_object_func;
 
-  /* "View.MemoryView":1043
+  /* "View.MemoryView":1047
  * 
  *     result.to_object_func = to_object_func
  *     result.to_dtype_func = to_dtype_func             # <<<<<<<<<<<<<<
@@ -16566,7 +15351,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
  */
   __pyx_v_result->to_dtype_func = __pyx_v_to_dtype_func;
 
-  /* "View.MemoryView":1045
+  /* "View.MemoryView":1049
  *     result.to_dtype_func = to_dtype_func
  * 
  *     return result             # <<<<<<<<<<<<<<
@@ -16578,7 +15363,7 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   __pyx_r = ((PyObject *)__pyx_v_result);
   goto __pyx_L0;
 
-  /* "View.MemoryView":995
+  /* "View.MemoryView":999
  * 
  * @cname('__pyx_memoryview_fromslice')
  * cdef memoryview_fromslice(__Pyx_memviewslice memviewslice,             # <<<<<<<<<<<<<<
@@ -16600,11 +15385,11 @@ static PyObject *__pyx_memoryview_fromslice(__Pyx_memviewslice __pyx_v_memviewsl
   return __pyx_r;
 }
 
-/* "View.MemoryView":1048
+/* "View.MemoryView":1052
  * 
  * @cname('__pyx_memoryview_get_slice_from_memoryview')
  * cdef __Pyx_memviewslice *get_slice_from_memview(memoryview memview,             # <<<<<<<<<<<<<<
- *                                                    __Pyx_memviewslice *mslice):
+ *                                                    __Pyx_memviewslice *mslice) except NULL:
  *     cdef _memoryviewslice obj
  */
 
@@ -16615,10 +15400,13 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
   int __pyx_t_1;
   int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("get_slice_from_memview", 0);
 
-  /* "View.MemoryView":1051
- *                                                    __Pyx_memviewslice *mslice):
+  /* "View.MemoryView":1055
+ *                                                    __Pyx_memviewslice *mslice) except NULL:
  *     cdef _memoryviewslice obj
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
  *         obj = memview
@@ -16628,20 +15416,20 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1052
+    /* "View.MemoryView":1056
  *     cdef _memoryviewslice obj
  *     if isinstance(memview, _memoryviewslice):
  *         obj = memview             # <<<<<<<<<<<<<<
  *         return &obj.from_slice
  *     else:
  */
-    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(2, 1052, __pyx_L1_error)
+    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(2, 1056, __pyx_L1_error)
     __pyx_t_3 = ((PyObject *)__pyx_v_memview);
     __Pyx_INCREF(__pyx_t_3);
     __pyx_v_obj = ((struct __pyx_memoryviewslice_obj *)__pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "View.MemoryView":1053
+    /* "View.MemoryView":1057
  *     if isinstance(memview, _memoryviewslice):
  *         obj = memview
  *         return &obj.from_slice             # <<<<<<<<<<<<<<
@@ -16651,8 +15439,8 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
     __pyx_r = (&__pyx_v_obj->from_slice);
     goto __pyx_L0;
 
-    /* "View.MemoryView":1051
- *                                                    __Pyx_memviewslice *mslice):
+    /* "View.MemoryView":1055
+ *                                                    __Pyx_memviewslice *mslice) except NULL:
  *     cdef _memoryviewslice obj
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
  *         obj = memview
@@ -16660,7 +15448,7 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
  */
   }
 
-  /* "View.MemoryView":1055
+  /* "View.MemoryView":1059
  *         return &obj.from_slice
  *     else:
  *         slice_copy(memview, mslice)             # <<<<<<<<<<<<<<
@@ -16670,7 +15458,7 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
   /*else*/ {
     __pyx_memoryview_slice_copy(__pyx_v_memview, __pyx_v_mslice);
 
-    /* "View.MemoryView":1056
+    /* "View.MemoryView":1060
  *     else:
  *         slice_copy(memview, mslice)
  *         return mslice             # <<<<<<<<<<<<<<
@@ -16681,26 +15469,26 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":1048
+  /* "View.MemoryView":1052
  * 
  * @cname('__pyx_memoryview_get_slice_from_memoryview')
  * cdef __Pyx_memviewslice *get_slice_from_memview(memoryview memview,             # <<<<<<<<<<<<<<
- *                                                    __Pyx_memviewslice *mslice):
+ *                                                    __Pyx_memviewslice *mslice) except NULL:
  *     cdef _memoryviewslice obj
  */
 
   /* function exit code */
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_WriteUnraisable("View.MemoryView.get_slice_from_memview", __pyx_clineno, __pyx_lineno, __pyx_filename, 1, 0);
-  __pyx_r = 0;
+  __Pyx_AddTraceback("View.MemoryView.get_slice_from_memview", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XDECREF((PyObject *)__pyx_v_obj);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "View.MemoryView":1059
+/* "View.MemoryView":1063
  * 
  * @cname('__pyx_memoryview_slice_copy')
  * cdef void slice_copy(memoryview memview, __Pyx_memviewslice *dst):             # <<<<<<<<<<<<<<
@@ -16721,7 +15509,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   Py_ssize_t __pyx_t_5;
   __Pyx_RefNannySetupContext("slice_copy", 0);
 
-  /* "View.MemoryView":1063
+  /* "View.MemoryView":1067
  *     cdef (Py_ssize_t*) shape, strides, suboffsets
  * 
  *     shape = memview.view.shape             # <<<<<<<<<<<<<<
@@ -16731,7 +15519,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   __pyx_t_1 = __pyx_v_memview->view.shape;
   __pyx_v_shape = __pyx_t_1;
 
-  /* "View.MemoryView":1064
+  /* "View.MemoryView":1068
  * 
  *     shape = memview.view.shape
  *     strides = memview.view.strides             # <<<<<<<<<<<<<<
@@ -16741,7 +15529,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   __pyx_t_1 = __pyx_v_memview->view.strides;
   __pyx_v_strides = __pyx_t_1;
 
-  /* "View.MemoryView":1065
+  /* "View.MemoryView":1069
  *     shape = memview.view.shape
  *     strides = memview.view.strides
  *     suboffsets = memview.view.suboffsets             # <<<<<<<<<<<<<<
@@ -16751,7 +15539,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   __pyx_t_1 = __pyx_v_memview->view.suboffsets;
   __pyx_v_suboffsets = __pyx_t_1;
 
-  /* "View.MemoryView":1067
+  /* "View.MemoryView":1071
  *     suboffsets = memview.view.suboffsets
  * 
  *     dst.memview = <__pyx_memoryview *> memview             # <<<<<<<<<<<<<<
@@ -16760,7 +15548,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  */
   __pyx_v_dst->memview = ((struct __pyx_memoryview_obj *)__pyx_v_memview);
 
-  /* "View.MemoryView":1068
+  /* "View.MemoryView":1072
  * 
  *     dst.memview = <__pyx_memoryview *> memview
  *     dst.data = <char *> memview.view.buf             # <<<<<<<<<<<<<<
@@ -16769,7 +15557,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  */
   __pyx_v_dst->data = ((char *)__pyx_v_memview->view.buf);
 
-  /* "View.MemoryView":1070
+  /* "View.MemoryView":1074
  *     dst.data = <char *> memview.view.buf
  * 
  *     for dim in range(memview.view.ndim):             # <<<<<<<<<<<<<<
@@ -16781,7 +15569,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_dim = __pyx_t_4;
 
-    /* "View.MemoryView":1071
+    /* "View.MemoryView":1075
  * 
  *     for dim in range(memview.view.ndim):
  *         dst.shape[dim] = shape[dim]             # <<<<<<<<<<<<<<
@@ -16790,7 +15578,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  */
     (__pyx_v_dst->shape[__pyx_v_dim]) = (__pyx_v_shape[__pyx_v_dim]);
 
-    /* "View.MemoryView":1072
+    /* "View.MemoryView":1076
  *     for dim in range(memview.view.ndim):
  *         dst.shape[dim] = shape[dim]
  *         dst.strides[dim] = strides[dim]             # <<<<<<<<<<<<<<
@@ -16799,7 +15587,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  */
     (__pyx_v_dst->strides[__pyx_v_dim]) = (__pyx_v_strides[__pyx_v_dim]);
 
-    /* "View.MemoryView":1073
+    /* "View.MemoryView":1077
  *         dst.shape[dim] = shape[dim]
  *         dst.strides[dim] = strides[dim]
  *         dst.suboffsets[dim] = suboffsets[dim] if suboffsets else -1             # <<<<<<<<<<<<<<
@@ -16814,7 +15602,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
     (__pyx_v_dst->suboffsets[__pyx_v_dim]) = __pyx_t_5;
   }
 
-  /* "View.MemoryView":1059
+  /* "View.MemoryView":1063
  * 
  * @cname('__pyx_memoryview_slice_copy')
  * cdef void slice_copy(memoryview memview, __Pyx_memviewslice *dst):             # <<<<<<<<<<<<<<
@@ -16826,7 +15614,7 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":1076
+/* "View.MemoryView":1080
  * 
  * @cname('__pyx_memoryview_copy_object')
  * cdef memoryview_copy(memoryview memview):             # <<<<<<<<<<<<<<
@@ -16839,9 +15627,12 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("memoryview_copy", 0);
 
-  /* "View.MemoryView":1079
+  /* "View.MemoryView":1083
  *     "Create a new memoryview object"
  *     cdef __Pyx_memviewslice memviewslice
  *     slice_copy(memview, &memviewslice)             # <<<<<<<<<<<<<<
@@ -16850,7 +15641,7 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
  */
   __pyx_memoryview_slice_copy(__pyx_v_memview, (&__pyx_v_memviewslice));
 
-  /* "View.MemoryView":1080
+  /* "View.MemoryView":1084
  *     cdef __Pyx_memviewslice memviewslice
  *     slice_copy(memview, &memviewslice)
  *     return memoryview_copy_from_slice(memview, &memviewslice)             # <<<<<<<<<<<<<<
@@ -16858,13 +15649,13 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
  * @cname('__pyx_memoryview_copy_object_from_slice')
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_memoryview_copy_object_from_slice(__pyx_v_memview, (&__pyx_v_memviewslice)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1080, __pyx_L1_error)
+  __pyx_t_1 = __pyx_memoryview_copy_object_from_slice(__pyx_v_memview, (&__pyx_v_memviewslice)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1084, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1076
+  /* "View.MemoryView":1080
  * 
  * @cname('__pyx_memoryview_copy_object')
  * cdef memoryview_copy(memoryview memview):             # <<<<<<<<<<<<<<
@@ -16883,7 +15674,7 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
   return __pyx_r;
 }
 
-/* "View.MemoryView":1083
+/* "View.MemoryView":1087
  * 
  * @cname('__pyx_memoryview_copy_object_from_slice')
  * cdef memoryview_copy_from_slice(memoryview memview, __Pyx_memviewslice *memviewslice):             # <<<<<<<<<<<<<<
@@ -16901,9 +15692,12 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   PyObject *(*__pyx_t_3)(char *);
   int (*__pyx_t_4)(char *, PyObject *);
   PyObject *__pyx_t_5 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("memoryview_copy_from_slice", 0);
 
-  /* "View.MemoryView":1090
+  /* "View.MemoryView":1094
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -16914,7 +15708,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1091
+    /* "View.MemoryView":1095
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         to_object_func = (<_memoryviewslice> memview).to_object_func             # <<<<<<<<<<<<<<
@@ -16924,7 +15718,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
     __pyx_t_3 = ((struct __pyx_memoryviewslice_obj *)__pyx_v_memview)->to_object_func;
     __pyx_v_to_object_func = __pyx_t_3;
 
-    /* "View.MemoryView":1092
+    /* "View.MemoryView":1096
  *     if isinstance(memview, _memoryviewslice):
  *         to_object_func = (<_memoryviewslice> memview).to_object_func
  *         to_dtype_func = (<_memoryviewslice> memview).to_dtype_func             # <<<<<<<<<<<<<<
@@ -16934,7 +15728,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
     __pyx_t_4 = ((struct __pyx_memoryviewslice_obj *)__pyx_v_memview)->to_dtype_func;
     __pyx_v_to_dtype_func = __pyx_t_4;
 
-    /* "View.MemoryView":1090
+    /* "View.MemoryView":1094
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -16944,7 +15738,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1094
+  /* "View.MemoryView":1098
  *         to_dtype_func = (<_memoryviewslice> memview).to_dtype_func
  *     else:
  *         to_object_func = NULL             # <<<<<<<<<<<<<<
@@ -16954,7 +15748,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   /*else*/ {
     __pyx_v_to_object_func = NULL;
 
-    /* "View.MemoryView":1095
+    /* "View.MemoryView":1099
  *     else:
  *         to_object_func = NULL
  *         to_dtype_func = NULL             # <<<<<<<<<<<<<<
@@ -16965,7 +15759,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1097
+  /* "View.MemoryView":1101
  *         to_dtype_func = NULL
  * 
  *     return memoryview_fromslice(memviewslice[0], memview.view.ndim,             # <<<<<<<<<<<<<<
@@ -16974,20 +15768,20 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
  */
   __Pyx_XDECREF(__pyx_r);
 
-  /* "View.MemoryView":1099
+  /* "View.MemoryView":1103
  *     return memoryview_fromslice(memviewslice[0], memview.view.ndim,
  *                                 to_object_func, to_dtype_func,
  *                                 memview.dtype_is_object)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_5 = __pyx_memoryview_fromslice((__pyx_v_memviewslice[0]), __pyx_v_memview->view.ndim, __pyx_v_to_object_func, __pyx_v_to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 1097, __pyx_L1_error)
+  __pyx_t_5 = __pyx_memoryview_fromslice((__pyx_v_memviewslice[0]), __pyx_v_memview->view.ndim, __pyx_v_to_object_func, __pyx_v_to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_5)) __PYX_ERR(2, 1101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __pyx_r = __pyx_t_5;
   __pyx_t_5 = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1083
+  /* "View.MemoryView":1087
  * 
  * @cname('__pyx_memoryview_copy_object_from_slice')
  * cdef memoryview_copy_from_slice(memoryview memview, __Pyx_memviewslice *memviewslice):             # <<<<<<<<<<<<<<
@@ -17006,7 +15800,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   return __pyx_r;
 }
 
-/* "View.MemoryView":1105
+/* "View.MemoryView":1109
  * 
  * 
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:             # <<<<<<<<<<<<<<
@@ -17018,7 +15812,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
   Py_ssize_t __pyx_r;
   int __pyx_t_1;
 
-  /* "View.MemoryView":1106
+  /* "View.MemoryView":1110
  * 
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
  *     if arg < 0:             # <<<<<<<<<<<<<<
@@ -17028,7 +15822,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
   __pyx_t_1 = ((__pyx_v_arg < 0) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1107
+    /* "View.MemoryView":1111
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
  *     if arg < 0:
  *         return -arg             # <<<<<<<<<<<<<<
@@ -17038,7 +15832,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
     __pyx_r = (-__pyx_v_arg);
     goto __pyx_L0;
 
-    /* "View.MemoryView":1106
+    /* "View.MemoryView":1110
  * 
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
  *     if arg < 0:             # <<<<<<<<<<<<<<
@@ -17047,7 +15841,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
  */
   }
 
-  /* "View.MemoryView":1109
+  /* "View.MemoryView":1113
  *         return -arg
  *     else:
  *         return arg             # <<<<<<<<<<<<<<
@@ -17059,7 +15853,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":1105
+  /* "View.MemoryView":1109
  * 
  * 
  * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:             # <<<<<<<<<<<<<<
@@ -17072,7 +15866,7 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
   return __pyx_r;
 }
 
-/* "View.MemoryView":1112
+/* "View.MemoryView":1116
  * 
  * @cname('__pyx_get_best_slice_order')
  * cdef char get_best_order(__Pyx_memviewslice *mslice, int ndim) nogil:             # <<<<<<<<<<<<<<
@@ -17090,7 +15884,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   int __pyx_t_3;
   int __pyx_t_4;
 
-  /* "View.MemoryView":1117
+  /* "View.MemoryView":1121
  *     """
  *     cdef int i
  *     cdef Py_ssize_t c_stride = 0             # <<<<<<<<<<<<<<
@@ -17099,7 +15893,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   __pyx_v_c_stride = 0;
 
-  /* "View.MemoryView":1118
+  /* "View.MemoryView":1122
  *     cdef int i
  *     cdef Py_ssize_t c_stride = 0
  *     cdef Py_ssize_t f_stride = 0             # <<<<<<<<<<<<<<
@@ -17108,7 +15902,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   __pyx_v_f_stride = 0;
 
-  /* "View.MemoryView":1120
+  /* "View.MemoryView":1124
  *     cdef Py_ssize_t f_stride = 0
  * 
  *     for i in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
@@ -17118,7 +15912,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   for (__pyx_t_1 = (__pyx_v_ndim - 1); __pyx_t_1 > -1; __pyx_t_1-=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":1121
+    /* "View.MemoryView":1125
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -17128,7 +15922,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     __pyx_t_2 = (((__pyx_v_mslice->shape[__pyx_v_i]) > 1) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1122
+      /* "View.MemoryView":1126
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:
  *             c_stride = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -17137,7 +15931,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       __pyx_v_c_stride = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-      /* "View.MemoryView":1123
+      /* "View.MemoryView":1127
  *         if mslice.shape[i] > 1:
  *             c_stride = mslice.strides[i]
  *             break             # <<<<<<<<<<<<<<
@@ -17146,7 +15940,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       goto __pyx_L4_break;
 
-      /* "View.MemoryView":1121
+      /* "View.MemoryView":1125
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -17157,7 +15951,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   }
   __pyx_L4_break:;
 
-  /* "View.MemoryView":1125
+  /* "View.MemoryView":1129
  *             break
  * 
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -17169,7 +15963,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_i = __pyx_t_4;
 
-    /* "View.MemoryView":1126
+    /* "View.MemoryView":1130
  * 
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -17179,7 +15973,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     __pyx_t_2 = (((__pyx_v_mslice->shape[__pyx_v_i]) > 1) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1127
+      /* "View.MemoryView":1131
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:
  *             f_stride = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -17188,7 +15982,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       __pyx_v_f_stride = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-      /* "View.MemoryView":1128
+      /* "View.MemoryView":1132
  *         if mslice.shape[i] > 1:
  *             f_stride = mslice.strides[i]
  *             break             # <<<<<<<<<<<<<<
@@ -17197,7 +15991,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       goto __pyx_L7_break;
 
-      /* "View.MemoryView":1126
+      /* "View.MemoryView":1130
  * 
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -17208,7 +16002,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   }
   __pyx_L7_break:;
 
-  /* "View.MemoryView":1130
+  /* "View.MemoryView":1134
  *             break
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):             # <<<<<<<<<<<<<<
@@ -17218,7 +16012,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   __pyx_t_2 = ((abs_py_ssize_t(__pyx_v_c_stride) <= abs_py_ssize_t(__pyx_v_f_stride)) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1131
+    /* "View.MemoryView":1135
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):
  *         return 'C'             # <<<<<<<<<<<<<<
@@ -17228,7 +16022,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     __pyx_r = 'C';
     goto __pyx_L0;
 
-    /* "View.MemoryView":1130
+    /* "View.MemoryView":1134
  *             break
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):             # <<<<<<<<<<<<<<
@@ -17237,7 +16031,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   }
 
-  /* "View.MemoryView":1133
+  /* "View.MemoryView":1137
  *         return 'C'
  *     else:
  *         return 'F'             # <<<<<<<<<<<<<<
@@ -17249,7 +16043,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":1112
+  /* "View.MemoryView":1116
  * 
  * @cname('__pyx_get_best_slice_order')
  * cdef char get_best_order(__Pyx_memviewslice *mslice, int ndim) nogil:             # <<<<<<<<<<<<<<
@@ -17262,7 +16056,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   return __pyx_r;
 }
 
-/* "View.MemoryView":1136
+/* "View.MemoryView":1140
  * 
  * @cython.cdivision(True)
  * cdef void _copy_strided_to_strided(char *src_data, Py_ssize_t *src_strides,             # <<<<<<<<<<<<<<
@@ -17283,7 +16077,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   Py_ssize_t __pyx_t_5;
   Py_ssize_t __pyx_t_6;
 
-  /* "View.MemoryView":1143
+  /* "View.MemoryView":1147
  * 
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t src_extent = src_shape[0]             # <<<<<<<<<<<<<<
@@ -17292,7 +16086,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_src_extent = (__pyx_v_src_shape[0]);
 
-  /* "View.MemoryView":1144
+  /* "View.MemoryView":1148
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t src_extent = src_shape[0]
  *     cdef Py_ssize_t dst_extent = dst_shape[0]             # <<<<<<<<<<<<<<
@@ -17301,7 +16095,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_dst_extent = (__pyx_v_dst_shape[0]);
 
-  /* "View.MemoryView":1145
+  /* "View.MemoryView":1149
  *     cdef Py_ssize_t src_extent = src_shape[0]
  *     cdef Py_ssize_t dst_extent = dst_shape[0]
  *     cdef Py_ssize_t src_stride = src_strides[0]             # <<<<<<<<<<<<<<
@@ -17310,7 +16104,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_src_stride = (__pyx_v_src_strides[0]);
 
-  /* "View.MemoryView":1146
+  /* "View.MemoryView":1150
  *     cdef Py_ssize_t dst_extent = dst_shape[0]
  *     cdef Py_ssize_t src_stride = src_strides[0]
  *     cdef Py_ssize_t dst_stride = dst_strides[0]             # <<<<<<<<<<<<<<
@@ -17319,7 +16113,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_dst_stride = (__pyx_v_dst_strides[0]);
 
-  /* "View.MemoryView":1148
+  /* "View.MemoryView":1152
  *     cdef Py_ssize_t dst_stride = dst_strides[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -17329,7 +16123,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   __pyx_t_1 = ((__pyx_v_ndim == 1) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1149
+    /* "View.MemoryView":1153
  * 
  *     if ndim == 1:
  *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
@@ -17349,7 +16143,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
       goto __pyx_L5_bool_binop_done;
     }
 
-    /* "View.MemoryView":1150
+    /* "View.MemoryView":1154
  *     if ndim == 1:
  *        if (src_stride > 0 and dst_stride > 0 and
  *            <size_t> src_stride == itemsize == <size_t> dst_stride):             # <<<<<<<<<<<<<<
@@ -17364,7 +16158,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     __pyx_t_1 = __pyx_t_3;
     __pyx_L5_bool_binop_done:;
 
-    /* "View.MemoryView":1149
+    /* "View.MemoryView":1153
  * 
  *     if ndim == 1:
  *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
@@ -17373,7 +16167,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":1151
+      /* "View.MemoryView":1155
  *        if (src_stride > 0 and dst_stride > 0 and
  *            <size_t> src_stride == itemsize == <size_t> dst_stride):
  *            memcpy(dst_data, src_data, itemsize * dst_extent)             # <<<<<<<<<<<<<<
@@ -17382,7 +16176,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
       (void)(memcpy(__pyx_v_dst_data, __pyx_v_src_data, (__pyx_v_itemsize * __pyx_v_dst_extent)));
 
-      /* "View.MemoryView":1149
+      /* "View.MemoryView":1153
  * 
  *     if ndim == 1:
  *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
@@ -17392,7 +16186,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
       goto __pyx_L4;
     }
 
-    /* "View.MemoryView":1153
+    /* "View.MemoryView":1157
  *            memcpy(dst_data, src_data, itemsize * dst_extent)
  *        else:
  *            for i in range(dst_extent):             # <<<<<<<<<<<<<<
@@ -17405,7 +16199,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
       for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
         __pyx_v_i = __pyx_t_6;
 
-        /* "View.MemoryView":1154
+        /* "View.MemoryView":1158
  *        else:
  *            for i in range(dst_extent):
  *                memcpy(dst_data, src_data, itemsize)             # <<<<<<<<<<<<<<
@@ -17414,7 +16208,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
         (void)(memcpy(__pyx_v_dst_data, __pyx_v_src_data, __pyx_v_itemsize));
 
-        /* "View.MemoryView":1155
+        /* "View.MemoryView":1159
  *            for i in range(dst_extent):
  *                memcpy(dst_data, src_data, itemsize)
  *                src_data += src_stride             # <<<<<<<<<<<<<<
@@ -17423,7 +16217,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
         __pyx_v_src_data = (__pyx_v_src_data + __pyx_v_src_stride);
 
-        /* "View.MemoryView":1156
+        /* "View.MemoryView":1160
  *                memcpy(dst_data, src_data, itemsize)
  *                src_data += src_stride
  *                dst_data += dst_stride             # <<<<<<<<<<<<<<
@@ -17435,7 +16229,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     }
     __pyx_L4:;
 
-    /* "View.MemoryView":1148
+    /* "View.MemoryView":1152
  *     cdef Py_ssize_t dst_stride = dst_strides[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -17445,7 +16239,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1158
+  /* "View.MemoryView":1162
  *                dst_data += dst_stride
  *     else:
  *         for i in range(dst_extent):             # <<<<<<<<<<<<<<
@@ -17458,7 +16252,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "View.MemoryView":1159
+      /* "View.MemoryView":1163
  *     else:
  *         for i in range(dst_extent):
  *             _copy_strided_to_strided(src_data, src_strides + 1,             # <<<<<<<<<<<<<<
@@ -17467,7 +16261,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
       _copy_strided_to_strided(__pyx_v_src_data, (__pyx_v_src_strides + 1), __pyx_v_dst_data, (__pyx_v_dst_strides + 1), (__pyx_v_src_shape + 1), (__pyx_v_dst_shape + 1), (__pyx_v_ndim - 1), __pyx_v_itemsize);
 
-      /* "View.MemoryView":1163
+      /* "View.MemoryView":1167
  *                                      src_shape + 1, dst_shape + 1,
  *                                      ndim - 1, itemsize)
  *             src_data += src_stride             # <<<<<<<<<<<<<<
@@ -17476,7 +16270,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
       __pyx_v_src_data = (__pyx_v_src_data + __pyx_v_src_stride);
 
-      /* "View.MemoryView":1164
+      /* "View.MemoryView":1168
  *                                      ndim - 1, itemsize)
  *             src_data += src_stride
  *             dst_data += dst_stride             # <<<<<<<<<<<<<<
@@ -17488,7 +16282,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1136
+  /* "View.MemoryView":1140
  * 
  * @cython.cdivision(True)
  * cdef void _copy_strided_to_strided(char *src_data, Py_ssize_t *src_strides,             # <<<<<<<<<<<<<<
@@ -17499,7 +16293,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   /* function exit code */
 }
 
-/* "View.MemoryView":1166
+/* "View.MemoryView":1170
  *             dst_data += dst_stride
  * 
  * cdef void copy_strided_to_strided(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
@@ -17509,7 +16303,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
 
 static void copy_strided_to_strided(__Pyx_memviewslice *__pyx_v_src, __Pyx_memviewslice *__pyx_v_dst, int __pyx_v_ndim, size_t __pyx_v_itemsize) {
 
-  /* "View.MemoryView":1169
+  /* "View.MemoryView":1173
  *                                   __Pyx_memviewslice *dst,
  *                                   int ndim, size_t itemsize) nogil:
  *     _copy_strided_to_strided(src.data, src.strides, dst.data, dst.strides,             # <<<<<<<<<<<<<<
@@ -17518,7 +16312,7 @@ static void copy_strided_to_strided(__Pyx_memviewslice *__pyx_v_src, __Pyx_memvi
  */
   _copy_strided_to_strided(__pyx_v_src->data, __pyx_v_src->strides, __pyx_v_dst->data, __pyx_v_dst->strides, __pyx_v_src->shape, __pyx_v_dst->shape, __pyx_v_ndim, __pyx_v_itemsize);
 
-  /* "View.MemoryView":1166
+  /* "View.MemoryView":1170
  *             dst_data += dst_stride
  * 
  * cdef void copy_strided_to_strided(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
@@ -17529,57 +16323,57 @@ static void copy_strided_to_strided(__Pyx_memviewslice *__pyx_v_src, __Pyx_memvi
   /* function exit code */
 }
 
-/* "View.MemoryView":1173
+/* "View.MemoryView":1177
  * 
  * @cname('__pyx_memoryview_slice_get_size')
  * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:             # <<<<<<<<<<<<<<
  *     "Return the size of the memory occupied by the slice in number of bytes"
- *     cdef int i
+ *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  */
 
 static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_src, int __pyx_v_ndim) {
-  int __pyx_v_i;
+  Py_ssize_t __pyx_v_shape;
   Py_ssize_t __pyx_v_size;
   Py_ssize_t __pyx_r;
   Py_ssize_t __pyx_t_1;
-  int __pyx_t_2;
-  int __pyx_t_3;
-  int __pyx_t_4;
+  Py_ssize_t *__pyx_t_2;
+  Py_ssize_t *__pyx_t_3;
+  Py_ssize_t *__pyx_t_4;
 
-  /* "View.MemoryView":1176
+  /* "View.MemoryView":1179
+ * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:
  *     "Return the size of the memory occupied by the slice in number of bytes"
- *     cdef int i
- *     cdef Py_ssize_t size = src.memview.view.itemsize             # <<<<<<<<<<<<<<
+ *     cdef Py_ssize_t shape, size = src.memview.view.itemsize             # <<<<<<<<<<<<<<
  * 
- *     for i in range(ndim):
+ *     for shape in src.shape[:ndim]:
  */
   __pyx_t_1 = __pyx_v_src->memview->view.itemsize;
   __pyx_v_size = __pyx_t_1;
 
-  /* "View.MemoryView":1178
- *     cdef Py_ssize_t size = src.memview.view.itemsize
+  /* "View.MemoryView":1181
+ *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  * 
- *     for i in range(ndim):             # <<<<<<<<<<<<<<
- *         size *= src.shape[i]
+ *     for shape in src.shape[:ndim]:             # <<<<<<<<<<<<<<
+ *         size *= shape
  * 
  */
-  __pyx_t_2 = __pyx_v_ndim;
-  __pyx_t_3 = __pyx_t_2;
-  for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
-    __pyx_v_i = __pyx_t_4;
+  __pyx_t_3 = (__pyx_v_src->shape + __pyx_v_ndim);
+  for (__pyx_t_4 = __pyx_v_src->shape; __pyx_t_4 < __pyx_t_3; __pyx_t_4++) {
+    __pyx_t_2 = __pyx_t_4;
+    __pyx_v_shape = (__pyx_t_2[0]);
 
-    /* "View.MemoryView":1179
+    /* "View.MemoryView":1182
  * 
- *     for i in range(ndim):
- *         size *= src.shape[i]             # <<<<<<<<<<<<<<
+ *     for shape in src.shape[:ndim]:
+ *         size *= shape             # <<<<<<<<<<<<<<
  * 
  *     return size
  */
-    __pyx_v_size = (__pyx_v_size * (__pyx_v_src->shape[__pyx_v_i]));
+    __pyx_v_size = (__pyx_v_size * __pyx_v_shape);
   }
 
-  /* "View.MemoryView":1181
- *         size *= src.shape[i]
+  /* "View.MemoryView":1184
+ *         size *= shape
  * 
  *     return size             # <<<<<<<<<<<<<<
  * 
@@ -17588,12 +16382,12 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
   __pyx_r = __pyx_v_size;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1173
+  /* "View.MemoryView":1177
  * 
  * @cname('__pyx_memoryview_slice_get_size')
  * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:             # <<<<<<<<<<<<<<
  *     "Return the size of the memory occupied by the slice in number of bytes"
- *     cdef int i
+ *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  */
 
   /* function exit code */
@@ -17601,7 +16395,7 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
   return __pyx_r;
 }
 
-/* "View.MemoryView":1184
+/* "View.MemoryView":1187
  * 
  * @cname('__pyx_fill_contig_strides_array')
  * cdef Py_ssize_t fill_contig_strides_array(             # <<<<<<<<<<<<<<
@@ -17617,7 +16411,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   int __pyx_t_3;
   int __pyx_t_4;
 
-  /* "View.MemoryView":1193
+  /* "View.MemoryView":1196
  *     cdef int idx
  * 
  *     if order == 'F':             # <<<<<<<<<<<<<<
@@ -17627,38 +16421,38 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   __pyx_t_1 = ((__pyx_v_order == 'F') != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1194
+    /* "View.MemoryView":1197
  * 
  *     if order == 'F':
  *         for idx in range(ndim):             # <<<<<<<<<<<<<<
  *             strides[idx] = stride
- *             stride = stride * shape[idx]
+ *             stride *= shape[idx]
  */
     __pyx_t_2 = __pyx_v_ndim;
     __pyx_t_3 = __pyx_t_2;
     for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
       __pyx_v_idx = __pyx_t_4;
 
-      /* "View.MemoryView":1195
+      /* "View.MemoryView":1198
  *     if order == 'F':
  *         for idx in range(ndim):
  *             strides[idx] = stride             # <<<<<<<<<<<<<<
- *             stride = stride * shape[idx]
+ *             stride *= shape[idx]
  *     else:
  */
       (__pyx_v_strides[__pyx_v_idx]) = __pyx_v_stride;
 
-      /* "View.MemoryView":1196
+      /* "View.MemoryView":1199
  *         for idx in range(ndim):
  *             strides[idx] = stride
- *             stride = stride * shape[idx]             # <<<<<<<<<<<<<<
+ *             stride *= shape[idx]             # <<<<<<<<<<<<<<
  *     else:
  *         for idx in range(ndim - 1, -1, -1):
  */
       __pyx_v_stride = (__pyx_v_stride * (__pyx_v_shape[__pyx_v_idx]));
     }
 
-    /* "View.MemoryView":1193
+    /* "View.MemoryView":1196
  *     cdef int idx
  * 
  *     if order == 'F':             # <<<<<<<<<<<<<<
@@ -17668,30 +16462,30 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1198
- *             stride = stride * shape[idx]
+  /* "View.MemoryView":1201
+ *             stride *= shape[idx]
  *     else:
  *         for idx in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
  *             strides[idx] = stride
- *             stride = stride * shape[idx]
+ *             stride *= shape[idx]
  */
   /*else*/ {
     for (__pyx_t_2 = (__pyx_v_ndim - 1); __pyx_t_2 > -1; __pyx_t_2-=1) {
       __pyx_v_idx = __pyx_t_2;
 
-      /* "View.MemoryView":1199
+      /* "View.MemoryView":1202
  *     else:
  *         for idx in range(ndim - 1, -1, -1):
  *             strides[idx] = stride             # <<<<<<<<<<<<<<
- *             stride = stride * shape[idx]
+ *             stride *= shape[idx]
  * 
  */
       (__pyx_v_strides[__pyx_v_idx]) = __pyx_v_stride;
 
-      /* "View.MemoryView":1200
+      /* "View.MemoryView":1203
  *         for idx in range(ndim - 1, -1, -1):
  *             strides[idx] = stride
- *             stride = stride * shape[idx]             # <<<<<<<<<<<<<<
+ *             stride *= shape[idx]             # <<<<<<<<<<<<<<
  * 
  *     return stride
  */
@@ -17700,8 +16494,8 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1202
- *             stride = stride * shape[idx]
+  /* "View.MemoryView":1205
+ *             stride *= shape[idx]
  * 
  *     return stride             # <<<<<<<<<<<<<<
  * 
@@ -17710,7 +16504,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   __pyx_r = __pyx_v_stride;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1184
+  /* "View.MemoryView":1187
  * 
  * @cname('__pyx_fill_contig_strides_array')
  * cdef Py_ssize_t fill_contig_strides_array(             # <<<<<<<<<<<<<<
@@ -17723,7 +16517,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   return __pyx_r;
 }
 
-/* "View.MemoryView":1205
+/* "View.MemoryView":1208
  * 
  * @cname('__pyx_memoryview_copy_data_to_temp')
  * cdef void *copy_data_to_temp(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
@@ -17743,8 +16537,11 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   struct __pyx_memoryview_obj *__pyx_t_4;
   int __pyx_t_5;
   int __pyx_t_6;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
-  /* "View.MemoryView":1216
+  /* "View.MemoryView":1219
  *     cdef void *result
  * 
  *     cdef size_t itemsize = src.memview.view.itemsize             # <<<<<<<<<<<<<<
@@ -17754,7 +16551,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_1 = __pyx_v_src->memview->view.itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":1217
+  /* "View.MemoryView":1220
  * 
  *     cdef size_t itemsize = src.memview.view.itemsize
  *     cdef size_t size = slice_get_size(src, ndim)             # <<<<<<<<<<<<<<
@@ -17763,7 +16560,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   __pyx_v_size = __pyx_memoryview_slice_get_size(__pyx_v_src, __pyx_v_ndim);
 
-  /* "View.MemoryView":1219
+  /* "View.MemoryView":1222
  *     cdef size_t size = slice_get_size(src, ndim)
  * 
  *     result = malloc(size)             # <<<<<<<<<<<<<<
@@ -17772,7 +16569,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   __pyx_v_result = malloc(__pyx_v_size);
 
-  /* "View.MemoryView":1220
+  /* "View.MemoryView":1223
  * 
  *     result = malloc(size)
  *     if not result:             # <<<<<<<<<<<<<<
@@ -17782,16 +16579,16 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_2 = ((!(__pyx_v_result != 0)) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1221
+    /* "View.MemoryView":1224
  *     result = malloc(size)
  *     if not result:
  *         _err(MemoryError, NULL)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_3 = __pyx_memoryview_err(__pyx_builtin_MemoryError, NULL); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 1221, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_err(__pyx_builtin_MemoryError, NULL); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(2, 1224, __pyx_L1_error)
 
-    /* "View.MemoryView":1220
+    /* "View.MemoryView":1223
  * 
  *     result = malloc(size)
  *     if not result:             # <<<<<<<<<<<<<<
@@ -17800,7 +16597,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   }
 
-  /* "View.MemoryView":1224
+  /* "View.MemoryView":1227
  * 
  * 
  *     tmpslice.data = <char *> result             # <<<<<<<<<<<<<<
@@ -17809,7 +16606,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   __pyx_v_tmpslice->data = ((char *)__pyx_v_result);
 
-  /* "View.MemoryView":1225
+  /* "View.MemoryView":1228
  * 
  *     tmpslice.data = <char *> result
  *     tmpslice.memview = src.memview             # <<<<<<<<<<<<<<
@@ -17819,7 +16616,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_4 = __pyx_v_src->memview;
   __pyx_v_tmpslice->memview = __pyx_t_4;
 
-  /* "View.MemoryView":1226
+  /* "View.MemoryView":1229
  *     tmpslice.data = <char *> result
  *     tmpslice.memview = src.memview
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -17831,7 +16628,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
     __pyx_v_i = __pyx_t_6;
 
-    /* "View.MemoryView":1227
+    /* "View.MemoryView":1230
  *     tmpslice.memview = src.memview
  *     for i in range(ndim):
  *         tmpslice.shape[i] = src.shape[i]             # <<<<<<<<<<<<<<
@@ -17840,7 +16637,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
     (__pyx_v_tmpslice->shape[__pyx_v_i]) = (__pyx_v_src->shape[__pyx_v_i]);
 
-    /* "View.MemoryView":1228
+    /* "View.MemoryView":1231
  *     for i in range(ndim):
  *         tmpslice.shape[i] = src.shape[i]
  *         tmpslice.suboffsets[i] = -1             # <<<<<<<<<<<<<<
@@ -17850,7 +16647,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
     (__pyx_v_tmpslice->suboffsets[__pyx_v_i]) = -1L;
   }
 
-  /* "View.MemoryView":1230
+  /* "View.MemoryView":1233
  *         tmpslice.suboffsets[i] = -1
  * 
  *     fill_contig_strides_array(&tmpslice.shape[0], &tmpslice.strides[0], itemsize,             # <<<<<<<<<<<<<<
@@ -17859,7 +16656,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   (void)(__pyx_fill_contig_strides_array((&(__pyx_v_tmpslice->shape[0])), (&(__pyx_v_tmpslice->strides[0])), __pyx_v_itemsize, __pyx_v_ndim, __pyx_v_order));
 
-  /* "View.MemoryView":1234
+  /* "View.MemoryView":1237
  * 
  * 
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -17871,7 +16668,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
     __pyx_v_i = __pyx_t_6;
 
-    /* "View.MemoryView":1235
+    /* "View.MemoryView":1238
  * 
  *     for i in range(ndim):
  *         if tmpslice.shape[i] == 1:             # <<<<<<<<<<<<<<
@@ -17881,7 +16678,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
     __pyx_t_2 = (((__pyx_v_tmpslice->shape[__pyx_v_i]) == 1) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1236
+      /* "View.MemoryView":1239
  *     for i in range(ndim):
  *         if tmpslice.shape[i] == 1:
  *             tmpslice.strides[i] = 0             # <<<<<<<<<<<<<<
@@ -17890,7 +16687,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
       (__pyx_v_tmpslice->strides[__pyx_v_i]) = 0;
 
-      /* "View.MemoryView":1235
+      /* "View.MemoryView":1238
  * 
  *     for i in range(ndim):
  *         if tmpslice.shape[i] == 1:             # <<<<<<<<<<<<<<
@@ -17900,7 +16697,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
     }
   }
 
-  /* "View.MemoryView":1238
+  /* "View.MemoryView":1241
  *             tmpslice.strides[i] = 0
  * 
  *     if slice_is_contig(src[0], order, ndim):             # <<<<<<<<<<<<<<
@@ -17910,7 +16707,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_2 = (__pyx_memviewslice_is_contig((__pyx_v_src[0]), __pyx_v_order, __pyx_v_ndim) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1239
+    /* "View.MemoryView":1242
  * 
  *     if slice_is_contig(src[0], order, ndim):
  *         memcpy(result, src.data, size)             # <<<<<<<<<<<<<<
@@ -17919,7 +16716,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
     (void)(memcpy(__pyx_v_result, __pyx_v_src->data, __pyx_v_size));
 
-    /* "View.MemoryView":1238
+    /* "View.MemoryView":1241
  *             tmpslice.strides[i] = 0
  * 
  *     if slice_is_contig(src[0], order, ndim):             # <<<<<<<<<<<<<<
@@ -17929,7 +16726,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
     goto __pyx_L9;
   }
 
-  /* "View.MemoryView":1241
+  /* "View.MemoryView":1244
  *         memcpy(result, src.data, size)
  *     else:
  *         copy_strided_to_strided(src, tmpslice, ndim, itemsize)             # <<<<<<<<<<<<<<
@@ -17941,7 +16738,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   }
   __pyx_L9:;
 
-  /* "View.MemoryView":1243
+  /* "View.MemoryView":1246
  *         copy_strided_to_strided(src, tmpslice, ndim, itemsize)
  * 
  *     return result             # <<<<<<<<<<<<<<
@@ -17951,7 +16748,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_r = __pyx_v_result;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1205
+  /* "View.MemoryView":1208
  * 
  * @cname('__pyx_memoryview_copy_data_to_temp')
  * cdef void *copy_data_to_temp(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
@@ -17975,7 +16772,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   return __pyx_r;
 }
 
-/* "View.MemoryView":1248
+/* "View.MemoryView":1251
  * 
  * @cname('__pyx_memoryview_err_extents')
  * cdef int _err_extents(int i, Py_ssize_t extent1,             # <<<<<<<<<<<<<<
@@ -17990,25 +16787,28 @@ static int __pyx_memoryview_err_extents(int __pyx_v_i, Py_ssize_t __pyx_v_extent
   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   #ifdef WITH_THREAD
   PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
   #endif
   __Pyx_RefNannySetupContext("_err_extents", 0);
 
-  /* "View.MemoryView":1251
+  /* "View.MemoryView":1254
  *                              Py_ssize_t extent2) except -1 with gil:
  *     raise ValueError("got differing extents in dimension %d (got %d and %d)" %
  *                                                         (i, extent1, extent2))             # <<<<<<<<<<<<<<
  * 
  * @cname('__pyx_memoryview_err_dim')
  */
-  __pyx_t_1 = __Pyx_PyInt_From_int(__pyx_v_i); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1251, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyInt_From_int(__pyx_v_i); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1254, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_extent1); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1251, __pyx_L1_error)
+  __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_extent1); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1254, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_extent2); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1251, __pyx_L1_error)
+  __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_extent2); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1254, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1251, __pyx_L1_error)
+  __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1254, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_GIVEREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_1);
@@ -18020,24 +16820,24 @@ static int __pyx_memoryview_err_extents(int __pyx_v_i, Py_ssize_t __pyx_v_extent
   __pyx_t_2 = 0;
   __pyx_t_3 = 0;
 
-  /* "View.MemoryView":1250
+  /* "View.MemoryView":1253
  * cdef int _err_extents(int i, Py_ssize_t extent1,
  *                              Py_ssize_t extent2) except -1 with gil:
  *     raise ValueError("got differing extents in dimension %d (got %d and %d)" %             # <<<<<<<<<<<<<<
  *                                                         (i, extent1, extent2))
  * 
  */
-  __pyx_t_3 = __Pyx_PyString_Format(__pyx_kp_s_got_differing_extents_in_dimensi, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1250, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyString_Format(__pyx_kp_s_got_differing_extents_in_dimensi, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1253, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_4 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1250, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1253, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_Raise(__pyx_t_4, 0, 0, 0);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __PYX_ERR(2, 1250, __pyx_L1_error)
+  __PYX_ERR(2, 1253, __pyx_L1_error)
 
-  /* "View.MemoryView":1248
+  /* "View.MemoryView":1251
  * 
  * @cname('__pyx_memoryview_err_extents')
  * cdef int _err_extents(int i, Py_ssize_t extent1,             # <<<<<<<<<<<<<<
@@ -18060,7 +16860,7 @@ static int __pyx_memoryview_err_extents(int __pyx_v_i, Py_ssize_t __pyx_v_extent
   return __pyx_r;
 }
 
-/* "View.MemoryView":1254
+/* "View.MemoryView":1257
  * 
  * @cname('__pyx_memoryview_err_dim')
  * cdef int _err_dim(object error, char *msg, int dim) except -1 with gil:             # <<<<<<<<<<<<<<
@@ -18075,24 +16875,27 @@ static int __pyx_memoryview_err_dim(PyObject *__pyx_v_error, char *__pyx_v_msg,
   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   #ifdef WITH_THREAD
   PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
   #endif
   __Pyx_RefNannySetupContext("_err_dim", 0);
   __Pyx_INCREF(__pyx_v_error);
 
-  /* "View.MemoryView":1255
+  /* "View.MemoryView":1258
  * @cname('__pyx_memoryview_err_dim')
  * cdef int _err_dim(object error, char *msg, int dim) except -1 with gil:
  *     raise error(msg.decode('ascii') % dim)             # <<<<<<<<<<<<<<
  * 
  * @cname('__pyx_memoryview_err')
  */
-  __pyx_t_2 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1255, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1258, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyInt_From_int(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1255, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_int(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1258, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_4 = PyUnicode_Format(__pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1255, __pyx_L1_error)
+  __pyx_t_4 = PyUnicode_Format(__pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 1258, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -18110,14 +16913,14 @@ static int __pyx_memoryview_err_dim(PyObject *__pyx_v_error, char *__pyx_v_msg,
   __pyx_t_1 = (__pyx_t_2) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_2, __pyx_t_4) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_4);
   __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1255, __pyx_L1_error)
+  if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 1258, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_Raise(__pyx_t_1, 0, 0, 0);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __PYX_ERR(2, 1255, __pyx_L1_error)
+  __PYX_ERR(2, 1258, __pyx_L1_error)
 
-  /* "View.MemoryView":1254
+  /* "View.MemoryView":1257
  * 
  * @cname('__pyx_memoryview_err_dim')
  * cdef int _err_dim(object error, char *msg, int dim) except -1 with gil:             # <<<<<<<<<<<<<<
@@ -18141,7 +16944,7 @@ static int __pyx_memoryview_err_dim(PyObject *__pyx_v_error, char *__pyx_v_msg,
   return __pyx_r;
 }
 
-/* "View.MemoryView":1258
+/* "View.MemoryView":1261
  * 
  * @cname('__pyx_memoryview_err')
  * cdef int _err(object error, char *msg) except -1 with gil:             # <<<<<<<<<<<<<<
@@ -18157,13 +16960,16 @@ static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   #ifdef WITH_THREAD
   PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
   #endif
   __Pyx_RefNannySetupContext("_err", 0);
   __Pyx_INCREF(__pyx_v_error);
 
-  /* "View.MemoryView":1259
+  /* "View.MemoryView":1262
  * @cname('__pyx_memoryview_err')
  * cdef int _err(object error, char *msg) except -1 with gil:
  *     if msg != NULL:             # <<<<<<<<<<<<<<
@@ -18173,14 +16979,14 @@ static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
   __pyx_t_1 = ((__pyx_v_msg != NULL) != 0);
   if (unlikely(__pyx_t_1)) {
 
-    /* "View.MemoryView":1260
+    /* "View.MemoryView":1263
  * cdef int _err(object error, char *msg) except -1 with gil:
  *     if msg != NULL:
  *         raise error(msg.decode('ascii'))             # <<<<<<<<<<<<<<
  *     else:
  *         raise error
  */
-    __pyx_t_3 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1260, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1263, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_error);
     __pyx_t_4 = __pyx_v_error; __pyx_t_5 = NULL;
@@ -18196,14 +17002,14 @@ static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
     __pyx_t_2 = (__pyx_t_5) ? __Pyx_PyObject_Call2Args(__pyx_t_4, __pyx_t_5, __pyx_t_3) : __Pyx_PyObject_CallOneArg(__pyx_t_4, __pyx_t_3);
     __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1260, __pyx_L1_error)
+    if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1263, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(2, 1260, __pyx_L1_error)
+    __PYX_ERR(2, 1263, __pyx_L1_error)
 
-    /* "View.MemoryView":1259
+    /* "View.MemoryView":1262
  * @cname('__pyx_memoryview_err')
  * cdef int _err(object error, char *msg) except -1 with gil:
  *     if msg != NULL:             # <<<<<<<<<<<<<<
@@ -18212,7 +17018,7 @@ static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
  */
   }
 
-  /* "View.MemoryView":1262
+  /* "View.MemoryView":1265
  *         raise error(msg.decode('ascii'))
  *     else:
  *         raise error             # <<<<<<<<<<<<<<
@@ -18221,10 +17027,10 @@ static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
  */
   /*else*/ {
     __Pyx_Raise(__pyx_v_error, 0, 0, 0);
-    __PYX_ERR(2, 1262, __pyx_L1_error)
+    __PYX_ERR(2, 1265, __pyx_L1_error)
   }
 
-  /* "View.MemoryView":1258
+  /* "View.MemoryView":1261
  * 
  * @cname('__pyx_memoryview_err')
  * cdef int _err(object error, char *msg) except -1 with gil:             # <<<<<<<<<<<<<<
@@ -18248,7 +17054,7 @@ static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
   return __pyx_r;
 }
 
-/* "View.MemoryView":1265
+/* "View.MemoryView":1268
  * 
  * @cname('__pyx_memoryview_copy_contents')
  * cdef int memoryview_copy_contents(__Pyx_memviewslice src,             # <<<<<<<<<<<<<<
@@ -18274,8 +17080,11 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   int __pyx_t_6;
   void *__pyx_t_7;
   int __pyx_t_8;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
 
-  /* "View.MemoryView":1273
+  /* "View.MemoryView":1276
  *     Check for overlapping memory and verify the shapes.
  *     """
  *     cdef void *tmpdata = NULL             # <<<<<<<<<<<<<<
@@ -18284,7 +17093,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_tmpdata = NULL;
 
-  /* "View.MemoryView":1274
+  /* "View.MemoryView":1277
  *     """
  *     cdef void *tmpdata = NULL
  *     cdef size_t itemsize = src.memview.view.itemsize             # <<<<<<<<<<<<<<
@@ -18294,7 +17103,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_1 = __pyx_v_src.memview->view.itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":1276
+  /* "View.MemoryView":1279
  *     cdef size_t itemsize = src.memview.view.itemsize
  *     cdef int i
  *     cdef char order = get_best_order(&src, src_ndim)             # <<<<<<<<<<<<<<
@@ -18303,7 +17112,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_order = __pyx_get_best_slice_order((&__pyx_v_src), __pyx_v_src_ndim);
 
-  /* "View.MemoryView":1277
+  /* "View.MemoryView":1280
  *     cdef int i
  *     cdef char order = get_best_order(&src, src_ndim)
  *     cdef bint broadcasting = False             # <<<<<<<<<<<<<<
@@ -18312,7 +17121,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_broadcasting = 0;
 
-  /* "View.MemoryView":1278
+  /* "View.MemoryView":1281
  *     cdef char order = get_best_order(&src, src_ndim)
  *     cdef bint broadcasting = False
  *     cdef bint direct_copy = False             # <<<<<<<<<<<<<<
@@ -18321,7 +17130,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_direct_copy = 0;
 
-  /* "View.MemoryView":1281
+  /* "View.MemoryView":1284
  *     cdef __Pyx_memviewslice tmp
  * 
  *     if src_ndim < dst_ndim:             # <<<<<<<<<<<<<<
@@ -18331,7 +17140,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_2 = ((__pyx_v_src_ndim < __pyx_v_dst_ndim) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1282
+    /* "View.MemoryView":1285
  * 
  *     if src_ndim < dst_ndim:
  *         broadcast_leading(&src, src_ndim, dst_ndim)             # <<<<<<<<<<<<<<
@@ -18340,7 +17149,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     __pyx_memoryview_broadcast_leading((&__pyx_v_src), __pyx_v_src_ndim, __pyx_v_dst_ndim);
 
-    /* "View.MemoryView":1281
+    /* "View.MemoryView":1284
  *     cdef __Pyx_memviewslice tmp
  * 
  *     if src_ndim < dst_ndim:             # <<<<<<<<<<<<<<
@@ -18350,7 +17159,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1283
+  /* "View.MemoryView":1286
  *     if src_ndim < dst_ndim:
  *         broadcast_leading(&src, src_ndim, dst_ndim)
  *     elif dst_ndim < src_ndim:             # <<<<<<<<<<<<<<
@@ -18360,7 +17169,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_2 = ((__pyx_v_dst_ndim < __pyx_v_src_ndim) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1284
+    /* "View.MemoryView":1287
  *         broadcast_leading(&src, src_ndim, dst_ndim)
  *     elif dst_ndim < src_ndim:
  *         broadcast_leading(&dst, dst_ndim, src_ndim)             # <<<<<<<<<<<<<<
@@ -18369,7 +17178,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     __pyx_memoryview_broadcast_leading((&__pyx_v_dst), __pyx_v_dst_ndim, __pyx_v_src_ndim);
 
-    /* "View.MemoryView":1283
+    /* "View.MemoryView":1286
  *     if src_ndim < dst_ndim:
  *         broadcast_leading(&src, src_ndim, dst_ndim)
  *     elif dst_ndim < src_ndim:             # <<<<<<<<<<<<<<
@@ -18379,7 +17188,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1286
+  /* "View.MemoryView":1289
  *         broadcast_leading(&dst, dst_ndim, src_ndim)
  * 
  *     cdef int ndim = max(src_ndim, dst_ndim)             # <<<<<<<<<<<<<<
@@ -18395,7 +17204,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   }
   __pyx_v_ndim = __pyx_t_5;
 
-  /* "View.MemoryView":1288
+  /* "View.MemoryView":1291
  *     cdef int ndim = max(src_ndim, dst_ndim)
  * 
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -18407,7 +17216,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_i = __pyx_t_4;
 
-    /* "View.MemoryView":1289
+    /* "View.MemoryView":1292
  * 
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:             # <<<<<<<<<<<<<<
@@ -18417,7 +17226,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (((__pyx_v_src.shape[__pyx_v_i]) != (__pyx_v_dst.shape[__pyx_v_i])) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1290
+      /* "View.MemoryView":1293
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:
  *             if src.shape[i] == 1:             # <<<<<<<<<<<<<<
@@ -18427,7 +17236,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
       __pyx_t_2 = (((__pyx_v_src.shape[__pyx_v_i]) == 1) != 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":1291
+        /* "View.MemoryView":1294
  *         if src.shape[i] != dst.shape[i]:
  *             if src.shape[i] == 1:
  *                 broadcasting = True             # <<<<<<<<<<<<<<
@@ -18436,7 +17245,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
         __pyx_v_broadcasting = 1;
 
-        /* "View.MemoryView":1292
+        /* "View.MemoryView":1295
  *             if src.shape[i] == 1:
  *                 broadcasting = True
  *                 src.strides[i] = 0             # <<<<<<<<<<<<<<
@@ -18445,7 +17254,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
         (__pyx_v_src.strides[__pyx_v_i]) = 0;
 
-        /* "View.MemoryView":1290
+        /* "View.MemoryView":1293
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:
  *             if src.shape[i] == 1:             # <<<<<<<<<<<<<<
@@ -18455,7 +17264,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
         goto __pyx_L7;
       }
 
-      /* "View.MemoryView":1294
+      /* "View.MemoryView":1297
  *                 src.strides[i] = 0
  *             else:
  *                 _err_extents(i, dst.shape[i], src.shape[i])             # <<<<<<<<<<<<<<
@@ -18463,11 +17272,11 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  *         if src.suboffsets[i] >= 0:
  */
       /*else*/ {
-        __pyx_t_6 = __pyx_memoryview_err_extents(__pyx_v_i, (__pyx_v_dst.shape[__pyx_v_i]), (__pyx_v_src.shape[__pyx_v_i])); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(2, 1294, __pyx_L1_error)
+        __pyx_t_6 = __pyx_memoryview_err_extents(__pyx_v_i, (__pyx_v_dst.shape[__pyx_v_i]), (__pyx_v_src.shape[__pyx_v_i])); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(2, 1297, __pyx_L1_error)
       }
       __pyx_L7:;
 
-      /* "View.MemoryView":1289
+      /* "View.MemoryView":1292
  * 
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:             # <<<<<<<<<<<<<<
@@ -18476,7 +17285,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     }
 
-    /* "View.MemoryView":1296
+    /* "View.MemoryView":1299
  *                 _err_extents(i, dst.shape[i], src.shape[i])
  * 
  *         if src.suboffsets[i] >= 0:             # <<<<<<<<<<<<<<
@@ -18486,16 +17295,16 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (((__pyx_v_src.suboffsets[__pyx_v_i]) >= 0) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1297
+      /* "View.MemoryView":1300
  * 
  *         if src.suboffsets[i] >= 0:
  *             _err_dim(ValueError, "Dimension %d is not direct", i)             # <<<<<<<<<<<<<<
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):
  */
-      __pyx_t_6 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Dimension %d is not direct"), __pyx_v_i); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(2, 1297, __pyx_L1_error)
+      __pyx_t_6 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Dimension %d is not direct"), __pyx_v_i); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(2, 1300, __pyx_L1_error)
 
-      /* "View.MemoryView":1296
+      /* "View.MemoryView":1299
  *                 _err_extents(i, dst.shape[i], src.shape[i])
  * 
  *         if src.suboffsets[i] >= 0:             # <<<<<<<<<<<<<<
@@ -18505,7 +17314,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     }
   }
 
-  /* "View.MemoryView":1299
+  /* "View.MemoryView":1302
  *             _err_dim(ValueError, "Dimension %d is not direct", i)
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):             # <<<<<<<<<<<<<<
@@ -18515,7 +17324,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_2 = (__pyx_slices_overlap((&__pyx_v_src), (&__pyx_v_dst), __pyx_v_ndim, __pyx_v_itemsize) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1301
+    /* "View.MemoryView":1304
  *     if slices_overlap(&src, &dst, ndim, itemsize):
  * 
  *         if not slice_is_contig(src, order, ndim):             # <<<<<<<<<<<<<<
@@ -18525,7 +17334,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = ((!(__pyx_memviewslice_is_contig(__pyx_v_src, __pyx_v_order, __pyx_v_ndim) != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1302
+      /* "View.MemoryView":1305
  * 
  *         if not slice_is_contig(src, order, ndim):
  *             order = get_best_order(&dst, ndim)             # <<<<<<<<<<<<<<
@@ -18534,7 +17343,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_order = __pyx_get_best_slice_order((&__pyx_v_dst), __pyx_v_ndim);
 
-      /* "View.MemoryView":1301
+      /* "View.MemoryView":1304
  *     if slices_overlap(&src, &dst, ndim, itemsize):
  * 
  *         if not slice_is_contig(src, order, ndim):             # <<<<<<<<<<<<<<
@@ -18543,17 +17352,17 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     }
 
-    /* "View.MemoryView":1304
+    /* "View.MemoryView":1307
  *             order = get_best_order(&dst, ndim)
  * 
  *         tmpdata = copy_data_to_temp(&src, &tmp, order, ndim)             # <<<<<<<<<<<<<<
  *         src = tmp
  * 
  */
-    __pyx_t_7 = __pyx_memoryview_copy_data_to_temp((&__pyx_v_src), (&__pyx_v_tmp), __pyx_v_order, __pyx_v_ndim); if (unlikely(__pyx_t_7 == ((void *)NULL))) __PYX_ERR(2, 1304, __pyx_L1_error)
+    __pyx_t_7 = __pyx_memoryview_copy_data_to_temp((&__pyx_v_src), (&__pyx_v_tmp), __pyx_v_order, __pyx_v_ndim); if (unlikely(__pyx_t_7 == ((void *)NULL))) __PYX_ERR(2, 1307, __pyx_L1_error)
     __pyx_v_tmpdata = __pyx_t_7;
 
-    /* "View.MemoryView":1305
+    /* "View.MemoryView":1308
  * 
  *         tmpdata = copy_data_to_temp(&src, &tmp, order, ndim)
  *         src = tmp             # <<<<<<<<<<<<<<
@@ -18562,7 +17371,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     __pyx_v_src = __pyx_v_tmp;
 
-    /* "View.MemoryView":1299
+    /* "View.MemoryView":1302
  *             _err_dim(ValueError, "Dimension %d is not direct", i)
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):             # <<<<<<<<<<<<<<
@@ -18571,7 +17380,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1307
+  /* "View.MemoryView":1310
  *         src = tmp
  * 
  *     if not broadcasting:             # <<<<<<<<<<<<<<
@@ -18581,7 +17390,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_2 = ((!(__pyx_v_broadcasting != 0)) != 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1310
+    /* "View.MemoryView":1313
  * 
  * 
  *         if slice_is_contig(src, 'C', ndim):             # <<<<<<<<<<<<<<
@@ -18591,7 +17400,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (__pyx_memviewslice_is_contig(__pyx_v_src, 'C', __pyx_v_ndim) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1311
+      /* "View.MemoryView":1314
  * 
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)             # <<<<<<<<<<<<<<
@@ -18600,7 +17409,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_direct_copy = __pyx_memviewslice_is_contig(__pyx_v_dst, 'C', __pyx_v_ndim);
 
-      /* "View.MemoryView":1310
+      /* "View.MemoryView":1313
  * 
  * 
  *         if slice_is_contig(src, 'C', ndim):             # <<<<<<<<<<<<<<
@@ -18610,7 +17419,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
       goto __pyx_L12;
     }
 
-    /* "View.MemoryView":1312
+    /* "View.MemoryView":1315
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):             # <<<<<<<<<<<<<<
@@ -18620,7 +17429,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (__pyx_memviewslice_is_contig(__pyx_v_src, 'F', __pyx_v_ndim) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1313
+      /* "View.MemoryView":1316
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):
  *             direct_copy = slice_is_contig(dst, 'F', ndim)             # <<<<<<<<<<<<<<
@@ -18629,7 +17438,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_direct_copy = __pyx_memviewslice_is_contig(__pyx_v_dst, 'F', __pyx_v_ndim);
 
-      /* "View.MemoryView":1312
+      /* "View.MemoryView":1315
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):             # <<<<<<<<<<<<<<
@@ -18639,7 +17448,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     }
     __pyx_L12:;
 
-    /* "View.MemoryView":1315
+    /* "View.MemoryView":1318
  *             direct_copy = slice_is_contig(dst, 'F', ndim)
  * 
  *         if direct_copy:             # <<<<<<<<<<<<<<
@@ -18649,7 +17458,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     __pyx_t_2 = (__pyx_v_direct_copy != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1317
+      /* "View.MemoryView":1320
  *         if direct_copy:
  * 
  *             refcount_copying(&dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
@@ -18658,7 +17467,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-      /* "View.MemoryView":1318
+      /* "View.MemoryView":1321
  * 
  *             refcount_copying(&dst, dtype_is_object, ndim, False)
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))             # <<<<<<<<<<<<<<
@@ -18667,7 +17476,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       (void)(memcpy(__pyx_v_dst.data, __pyx_v_src.data, __pyx_memoryview_slice_get_size((&__pyx_v_src), __pyx_v_ndim)));
 
-      /* "View.MemoryView":1319
+      /* "View.MemoryView":1322
  *             refcount_copying(&dst, dtype_is_object, ndim, False)
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))
  *             refcount_copying(&dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
@@ -18676,7 +17485,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-      /* "View.MemoryView":1320
+      /* "View.MemoryView":1323
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))
  *             refcount_copying(&dst, dtype_is_object, ndim, True)
  *             free(tmpdata)             # <<<<<<<<<<<<<<
@@ -18685,7 +17494,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       free(__pyx_v_tmpdata);
 
-      /* "View.MemoryView":1321
+      /* "View.MemoryView":1324
  *             refcount_copying(&dst, dtype_is_object, ndim, True)
  *             free(tmpdata)
  *             return 0             # <<<<<<<<<<<<<<
@@ -18695,7 +17504,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
       __pyx_r = 0;
       goto __pyx_L0;
 
-      /* "View.MemoryView":1315
+      /* "View.MemoryView":1318
  *             direct_copy = slice_is_contig(dst, 'F', ndim)
  * 
  *         if direct_copy:             # <<<<<<<<<<<<<<
@@ -18704,7 +17513,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     }
 
-    /* "View.MemoryView":1307
+    /* "View.MemoryView":1310
  *         src = tmp
  * 
  *     if not broadcasting:             # <<<<<<<<<<<<<<
@@ -18713,7 +17522,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1323
+  /* "View.MemoryView":1326
  *             return 0
  * 
  *     if order == 'F' == get_best_order(&dst, ndim):             # <<<<<<<<<<<<<<
@@ -18727,25 +17536,25 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_8 = (__pyx_t_2 != 0);
   if (__pyx_t_8) {
 
-    /* "View.MemoryView":1326
+    /* "View.MemoryView":1329
  * 
  * 
  *         transpose_memslice(&src)             # <<<<<<<<<<<<<<
  *         transpose_memslice(&dst)
  * 
  */
-    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_src)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(2, 1326, __pyx_L1_error)
+    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_src)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(2, 1329, __pyx_L1_error)
 
-    /* "View.MemoryView":1327
+    /* "View.MemoryView":1330
  * 
  *         transpose_memslice(&src)
  *         transpose_memslice(&dst)             # <<<<<<<<<<<<<<
  * 
  *     refcount_copying(&dst, dtype_is_object, ndim, False)
  */
-    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_dst)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(2, 1327, __pyx_L1_error)
+    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_dst)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(2, 1330, __pyx_L1_error)
 
-    /* "View.MemoryView":1323
+    /* "View.MemoryView":1326
  *             return 0
  * 
  *     if order == 'F' == get_best_order(&dst, ndim):             # <<<<<<<<<<<<<<
@@ -18754,7 +17563,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1329
+  /* "View.MemoryView":1332
  *         transpose_memslice(&dst)
  * 
  *     refcount_copying(&dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
@@ -18763,7 +17572,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-  /* "View.MemoryView":1330
+  /* "View.MemoryView":1333
  * 
  *     refcount_copying(&dst, dtype_is_object, ndim, False)
  *     copy_strided_to_strided(&src, &dst, ndim, itemsize)             # <<<<<<<<<<<<<<
@@ -18772,7 +17581,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   copy_strided_to_strided((&__pyx_v_src), (&__pyx_v_dst), __pyx_v_ndim, __pyx_v_itemsize);
 
-  /* "View.MemoryView":1331
+  /* "View.MemoryView":1334
  *     refcount_copying(&dst, dtype_is_object, ndim, False)
  *     copy_strided_to_strided(&src, &dst, ndim, itemsize)
  *     refcount_copying(&dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
@@ -18781,7 +17590,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-  /* "View.MemoryView":1333
+  /* "View.MemoryView":1336
  *     refcount_copying(&dst, dtype_is_object, ndim, True)
  * 
  *     free(tmpdata)             # <<<<<<<<<<<<<<
@@ -18790,7 +17599,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   free(__pyx_v_tmpdata);
 
-  /* "View.MemoryView":1334
+  /* "View.MemoryView":1337
  * 
  *     free(tmpdata)
  *     return 0             # <<<<<<<<<<<<<<
@@ -18800,7 +17609,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_r = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1265
+  /* "View.MemoryView":1268
  * 
  * @cname('__pyx_memoryview_copy_contents')
  * cdef int memoryview_copy_contents(__Pyx_memviewslice src,             # <<<<<<<<<<<<<<
@@ -18824,7 +17633,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   return __pyx_r;
 }
 
-/* "View.MemoryView":1337
+/* "View.MemoryView":1340
  * 
  * @cname('__pyx_memoryview_broadcast_leading')
  * cdef void broadcast_leading(__Pyx_memviewslice *mslice,             # <<<<<<<<<<<<<<
@@ -18839,7 +17648,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   int __pyx_t_2;
   int __pyx_t_3;
 
-  /* "View.MemoryView":1341
+  /* "View.MemoryView":1344
  *                             int ndim_other) nogil:
  *     cdef int i
  *     cdef int offset = ndim_other - ndim             # <<<<<<<<<<<<<<
@@ -18848,7 +17657,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
   __pyx_v_offset = (__pyx_v_ndim_other - __pyx_v_ndim);
 
-  /* "View.MemoryView":1343
+  /* "View.MemoryView":1346
  *     cdef int offset = ndim_other - ndim
  * 
  *     for i in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
@@ -18858,7 +17667,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   for (__pyx_t_1 = (__pyx_v_ndim - 1); __pyx_t_1 > -1; __pyx_t_1-=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":1344
+    /* "View.MemoryView":1347
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         mslice.shape[i + offset] = mslice.shape[i]             # <<<<<<<<<<<<<<
@@ -18867,7 +17676,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->shape[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->shape[__pyx_v_i]);
 
-    /* "View.MemoryView":1345
+    /* "View.MemoryView":1348
  *     for i in range(ndim - 1, -1, -1):
  *         mslice.shape[i + offset] = mslice.shape[i]
  *         mslice.strides[i + offset] = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -18876,7 +17685,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->strides[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-    /* "View.MemoryView":1346
+    /* "View.MemoryView":1349
  *         mslice.shape[i + offset] = mslice.shape[i]
  *         mslice.strides[i + offset] = mslice.strides[i]
  *         mslice.suboffsets[i + offset] = mslice.suboffsets[i]             # <<<<<<<<<<<<<<
@@ -18886,7 +17695,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
     (__pyx_v_mslice->suboffsets[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->suboffsets[__pyx_v_i]);
   }
 
-  /* "View.MemoryView":1348
+  /* "View.MemoryView":1351
  *         mslice.suboffsets[i + offset] = mslice.suboffsets[i]
  * 
  *     for i in range(offset):             # <<<<<<<<<<<<<<
@@ -18898,7 +17707,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "View.MemoryView":1349
+    /* "View.MemoryView":1352
  * 
  *     for i in range(offset):
  *         mslice.shape[i] = 1             # <<<<<<<<<<<<<<
@@ -18907,7 +17716,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->shape[__pyx_v_i]) = 1;
 
-    /* "View.MemoryView":1350
+    /* "View.MemoryView":1353
  *     for i in range(offset):
  *         mslice.shape[i] = 1
  *         mslice.strides[i] = mslice.strides[0]             # <<<<<<<<<<<<<<
@@ -18916,7 +17725,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->strides[__pyx_v_i]) = (__pyx_v_mslice->strides[0]);
 
-    /* "View.MemoryView":1351
+    /* "View.MemoryView":1354
  *         mslice.shape[i] = 1
  *         mslice.strides[i] = mslice.strides[0]
  *         mslice.suboffsets[i] = -1             # <<<<<<<<<<<<<<
@@ -18926,7 +17735,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
     (__pyx_v_mslice->suboffsets[__pyx_v_i]) = -1L;
   }
 
-  /* "View.MemoryView":1337
+  /* "View.MemoryView":1340
  * 
  * @cname('__pyx_memoryview_broadcast_leading')
  * cdef void broadcast_leading(__Pyx_memviewslice *mslice,             # <<<<<<<<<<<<<<
@@ -18937,7 +17746,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   /* function exit code */
 }
 
-/* "View.MemoryView":1359
+/* "View.MemoryView":1362
  * 
  * @cname('__pyx_memoryview_refcount_copying')
  * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object,             # <<<<<<<<<<<<<<
@@ -18948,7 +17757,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
 static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, int __pyx_v_dtype_is_object, int __pyx_v_ndim, int __pyx_v_inc) {
   int __pyx_t_1;
 
-  /* "View.MemoryView":1363
+  /* "View.MemoryView":1366
  * 
  * 
  *     if dtype_is_object:             # <<<<<<<<<<<<<<
@@ -18958,7 +17767,7 @@ static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, i
   __pyx_t_1 = (__pyx_v_dtype_is_object != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1364
+    /* "View.MemoryView":1367
  * 
  *     if dtype_is_object:
  *         refcount_objects_in_slice_with_gil(dst.data, dst.shape,             # <<<<<<<<<<<<<<
@@ -18967,7 +17776,7 @@ static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, i
  */
     __pyx_memoryview_refcount_objects_in_slice_with_gil(__pyx_v_dst->data, __pyx_v_dst->shape, __pyx_v_dst->strides, __pyx_v_ndim, __pyx_v_inc);
 
-    /* "View.MemoryView":1363
+    /* "View.MemoryView":1366
  * 
  * 
  *     if dtype_is_object:             # <<<<<<<<<<<<<<
@@ -18976,7 +17785,7 @@ static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, i
  */
   }
 
-  /* "View.MemoryView":1359
+  /* "View.MemoryView":1362
  * 
  * @cname('__pyx_memoryview_refcount_copying')
  * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object,             # <<<<<<<<<<<<<<
@@ -18987,7 +17796,7 @@ static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, i
   /* function exit code */
 }
 
-/* "View.MemoryView":1368
+/* "View.MemoryView":1371
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice_with_gil')
  * cdef void refcount_objects_in_slice_with_gil(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -19002,7 +17811,7 @@ static void __pyx_memoryview_refcount_objects_in_slice_with_gil(char *__pyx_v_da
   #endif
   __Pyx_RefNannySetupContext("refcount_objects_in_slice_with_gil", 0);
 
-  /* "View.MemoryView":1371
+  /* "View.MemoryView":1374
  *                                              Py_ssize_t *strides, int ndim,
  *                                              bint inc) with gil:
  *     refcount_objects_in_slice(data, shape, strides, ndim, inc)             # <<<<<<<<<<<<<<
@@ -19011,7 +17820,7 @@ static void __pyx_memoryview_refcount_objects_in_slice_with_gil(char *__pyx_v_da
  */
   __pyx_memoryview_refcount_objects_in_slice(__pyx_v_data, __pyx_v_shape, __pyx_v_strides, __pyx_v_ndim, __pyx_v_inc);
 
-  /* "View.MemoryView":1368
+  /* "View.MemoryView":1371
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice_with_gil')
  * cdef void refcount_objects_in_slice_with_gil(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -19026,7 +17835,7 @@ static void __pyx_memoryview_refcount_objects_in_slice_with_gil(char *__pyx_v_da
   #endif
 }
 
-/* "View.MemoryView":1374
+/* "View.MemoryView":1377
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice')
  * cdef void refcount_objects_in_slice(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -19043,7 +17852,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
   int __pyx_t_4;
   __Pyx_RefNannySetupContext("refcount_objects_in_slice", 0);
 
-  /* "View.MemoryView":1378
+  /* "View.MemoryView":1381
  *     cdef Py_ssize_t i
  * 
  *     for i in range(shape[0]):             # <<<<<<<<<<<<<<
@@ -19055,7 +17864,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "View.MemoryView":1379
+    /* "View.MemoryView":1382
  * 
  *     for i in range(shape[0]):
  *         if ndim == 1:             # <<<<<<<<<<<<<<
@@ -19065,7 +17874,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
     __pyx_t_4 = ((__pyx_v_ndim == 1) != 0);
     if (__pyx_t_4) {
 
-      /* "View.MemoryView":1380
+      /* "View.MemoryView":1383
  *     for i in range(shape[0]):
  *         if ndim == 1:
  *             if inc:             # <<<<<<<<<<<<<<
@@ -19075,7 +17884,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
       __pyx_t_4 = (__pyx_v_inc != 0);
       if (__pyx_t_4) {
 
-        /* "View.MemoryView":1381
+        /* "View.MemoryView":1384
  *         if ndim == 1:
  *             if inc:
  *                 Py_INCREF((<PyObject **> data)[0])             # <<<<<<<<<<<<<<
@@ -19084,7 +17893,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
  */
         Py_INCREF((((PyObject **)__pyx_v_data)[0]));
 
-        /* "View.MemoryView":1380
+        /* "View.MemoryView":1383
  *     for i in range(shape[0]):
  *         if ndim == 1:
  *             if inc:             # <<<<<<<<<<<<<<
@@ -19094,7 +17903,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
         goto __pyx_L6;
       }
 
-      /* "View.MemoryView":1383
+      /* "View.MemoryView":1386
  *                 Py_INCREF((<PyObject **> data)[0])
  *             else:
  *                 Py_DECREF((<PyObject **> data)[0])             # <<<<<<<<<<<<<<
@@ -19106,7 +17915,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
       }
       __pyx_L6:;
 
-      /* "View.MemoryView":1379
+      /* "View.MemoryView":1382
  * 
  *     for i in range(shape[0]):
  *         if ndim == 1:             # <<<<<<<<<<<<<<
@@ -19116,7 +17925,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
       goto __pyx_L5;
     }
 
-    /* "View.MemoryView":1385
+    /* "View.MemoryView":1388
  *                 Py_DECREF((<PyObject **> data)[0])
  *         else:
  *             refcount_objects_in_slice(data, shape + 1, strides + 1,             # <<<<<<<<<<<<<<
@@ -19125,7 +17934,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
  */
     /*else*/ {
 
-      /* "View.MemoryView":1386
+      /* "View.MemoryView":1389
  *         else:
  *             refcount_objects_in_slice(data, shape + 1, strides + 1,
  *                                       ndim - 1, inc)             # <<<<<<<<<<<<<<
@@ -19136,7 +17945,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
     }
     __pyx_L5:;
 
-    /* "View.MemoryView":1388
+    /* "View.MemoryView":1391
  *                                       ndim - 1, inc)
  * 
  *         data += strides[0]             # <<<<<<<<<<<<<<
@@ -19146,7 +17955,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
     __pyx_v_data = (__pyx_v_data + (__pyx_v_strides[0]));
   }
 
-  /* "View.MemoryView":1374
+  /* "View.MemoryView":1377
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice')
  * cdef void refcount_objects_in_slice(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -19158,7 +17967,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
   __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":1394
+/* "View.MemoryView":1397
  * 
  * @cname('__pyx_memoryview_slice_assign_scalar')
  * cdef void slice_assign_scalar(__Pyx_memviewslice *dst, int ndim,             # <<<<<<<<<<<<<<
@@ -19168,7 +17977,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
 
 static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst, int __pyx_v_ndim, size_t __pyx_v_itemsize, void *__pyx_v_item, int __pyx_v_dtype_is_object) {
 
-  /* "View.MemoryView":1397
+  /* "View.MemoryView":1400
  *                               size_t itemsize, void *item,
  *                               bint dtype_is_object) nogil:
  *     refcount_copying(dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
@@ -19177,7 +17986,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst
  */
   __pyx_memoryview_refcount_copying(__pyx_v_dst, __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-  /* "View.MemoryView":1398
+  /* "View.MemoryView":1401
  *                               bint dtype_is_object) nogil:
  *     refcount_copying(dst, dtype_is_object, ndim, False)
  *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim,             # <<<<<<<<<<<<<<
@@ -19186,7 +17995,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst
  */
   __pyx_memoryview__slice_assign_scalar(__pyx_v_dst->data, __pyx_v_dst->shape, __pyx_v_dst->strides, __pyx_v_ndim, __pyx_v_itemsize, __pyx_v_item);
 
-  /* "View.MemoryView":1400
+  /* "View.MemoryView":1403
  *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim,
  *                          itemsize, item)
  *     refcount_copying(dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
@@ -19195,7 +18004,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst
  */
   __pyx_memoryview_refcount_copying(__pyx_v_dst, __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-  /* "View.MemoryView":1394
+  /* "View.MemoryView":1397
  * 
  * @cname('__pyx_memoryview_slice_assign_scalar')
  * cdef void slice_assign_scalar(__Pyx_memviewslice *dst, int ndim,             # <<<<<<<<<<<<<<
@@ -19206,7 +18015,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst
   /* function exit code */
 }
 
-/* "View.MemoryView":1404
+/* "View.MemoryView":1407
  * 
  * @cname('__pyx_memoryview__slice_assign_scalar')
  * cdef void _slice_assign_scalar(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -19223,7 +18032,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
   Py_ssize_t __pyx_t_3;
   Py_ssize_t __pyx_t_4;
 
-  /* "View.MemoryView":1408
+  /* "View.MemoryView":1411
  *                               size_t itemsize, void *item) nogil:
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t stride = strides[0]             # <<<<<<<<<<<<<<
@@ -19232,7 +18041,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
   __pyx_v_stride = (__pyx_v_strides[0]);
 
-  /* "View.MemoryView":1409
+  /* "View.MemoryView":1412
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t stride = strides[0]
  *     cdef Py_ssize_t extent = shape[0]             # <<<<<<<<<<<<<<
@@ -19241,7 +18050,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
   __pyx_v_extent = (__pyx_v_shape[0]);
 
-  /* "View.MemoryView":1411
+  /* "View.MemoryView":1414
  *     cdef Py_ssize_t extent = shape[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -19251,7 +18060,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
   __pyx_t_1 = ((__pyx_v_ndim == 1) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1412
+    /* "View.MemoryView":1415
  * 
  *     if ndim == 1:
  *         for i in range(extent):             # <<<<<<<<<<<<<<
@@ -19263,7 +18072,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
     for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
       __pyx_v_i = __pyx_t_4;
 
-      /* "View.MemoryView":1413
+      /* "View.MemoryView":1416
  *     if ndim == 1:
  *         for i in range(extent):
  *             memcpy(data, item, itemsize)             # <<<<<<<<<<<<<<
@@ -19272,7 +18081,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
       (void)(memcpy(__pyx_v_data, __pyx_v_item, __pyx_v_itemsize));
 
-      /* "View.MemoryView":1414
+      /* "View.MemoryView":1417
  *         for i in range(extent):
  *             memcpy(data, item, itemsize)
  *             data += stride             # <<<<<<<<<<<<<<
@@ -19282,7 +18091,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
       __pyx_v_data = (__pyx_v_data + __pyx_v_stride);
     }
 
-    /* "View.MemoryView":1411
+    /* "View.MemoryView":1414
  *     cdef Py_ssize_t extent = shape[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -19292,7 +18101,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1416
+  /* "View.MemoryView":1419
  *             data += stride
  *     else:
  *         for i in range(extent):             # <<<<<<<<<<<<<<
@@ -19305,7 +18114,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
     for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
       __pyx_v_i = __pyx_t_4;
 
-      /* "View.MemoryView":1417
+      /* "View.MemoryView":1420
  *     else:
  *         for i in range(extent):
  *             _slice_assign_scalar(data, shape + 1, strides + 1,             # <<<<<<<<<<<<<<
@@ -19314,7 +18123,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
       __pyx_memoryview__slice_assign_scalar(__pyx_v_data, (__pyx_v_shape + 1), (__pyx_v_strides + 1), (__pyx_v_ndim - 1), __pyx_v_itemsize, __pyx_v_item);
 
-      /* "View.MemoryView":1419
+      /* "View.MemoryView":1422
  *             _slice_assign_scalar(data, shape + 1, strides + 1,
  *                                 ndim - 1, itemsize, item)
  *             data += stride             # <<<<<<<<<<<<<<
@@ -19326,7 +18135,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1404
+  /* "View.MemoryView":1407
  * 
  * @cname('__pyx_memoryview__slice_assign_scalar')
  * cdef void _slice_assign_scalar(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
@@ -19350,6 +18159,9 @@ static PyObject *__pyx_pw_15View_dot_MemoryView_1__pyx_unpickle_Enum(PyObject *_
   PyObject *__pyx_v___pyx_type = 0;
   long __pyx_v___pyx_checksum;
   PyObject *__pyx_v___pyx_state = 0;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__pyx_unpickle_Enum (wrapper)", 0);
@@ -19427,6 +18239,9 @@ static PyObject *__pyx_pf_15View_dot_MemoryView___pyx_unpickle_Enum(CYTHON_UNUSE
   PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
   int __pyx_t_6;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__pyx_unpickle_Enum", 0);
 
   /* "(tree fragment)":4
@@ -19615,6 +18430,9 @@ static PyObject *__pyx_unpickle_Enum__set_state(struct __pyx_MemviewEnum_obj *__
   PyObject *__pyx_t_6 = NULL;
   PyObject *__pyx_t_7 = NULL;
   PyObject *__pyx_t_8 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__pyx_unpickle_Enum__set_state", 0);
 
   /* "(tree fragment)":12
@@ -19756,9 +18574,9 @@ static void __pyx_tp_dealloc_array(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
     __pyx_array___dealloc__(o);
-    --Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
     PyErr_Restore(etype, eval, etb);
   }
   Py_CLEAR(p->mode);
@@ -19851,7 +18669,12 @@ static PyTypeObject __pyx_type___pyx_array = {
   sizeof(struct __pyx_array_obj), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_array, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -19901,6 +18724,12 @@ static PyTypeObject __pyx_type___pyx_array = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 
 static PyObject *__pyx_tp_new_Enum(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
@@ -19959,7 +18788,12 @@ static PyTypeObject __pyx_type___pyx_MemviewEnum = {
   sizeof(struct __pyx_MemviewEnum_obj), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_Enum, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -20009,6 +18843,12 @@ static PyTypeObject __pyx_type___pyx_MemviewEnum = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct_memoryview __pyx_vtable_memoryview;
 
@@ -20045,9 +18885,9 @@ static void __pyx_tp_dealloc_memoryview(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
     __pyx_memoryview___dealloc__(o);
-    --Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
     PyErr_Restore(etype, eval, etb);
   }
   Py_CLEAR(p->obj);
@@ -20209,7 +19049,12 @@ static PyTypeObject __pyx_type___pyx_memoryview = {
   sizeof(struct __pyx_memoryview_obj), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc_memoryview, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -20259,6 +19104,12 @@ static PyTypeObject __pyx_type___pyx_memoryview = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 static struct __pyx_vtabstruct__memoryviewslice __pyx_vtable__memoryviewslice;
 
@@ -20284,9 +19135,9 @@ static void __pyx_tp_dealloc__memoryviewslice(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
     __pyx_memoryviewslice___dealloc__(o);
-    --Py_REFCNT(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
     PyErr_Restore(etype, eval, etb);
   }
   Py_CLEAR(p->from_object);
@@ -20336,7 +19187,12 @@ static PyTypeObject __pyx_type___pyx_memoryviewslice = {
   sizeof(struct __pyx_memoryviewslice_obj), /*tp_basicsize*/
   0, /*tp_itemsize*/
   __pyx_tp_dealloc__memoryviewslice, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -20394,6 +19250,12 @@ static PyTypeObject __pyx_type___pyx_memoryviewslice = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
 };
 
 static PyMethodDef __pyx_methods[] = {
@@ -20451,8 +19313,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_D, __pyx_k_D, sizeof(__pyx_k_D), 0, 0, 1, 1},
   {&__pyx_n_s_Ellipsis, __pyx_k_Ellipsis, sizeof(__pyx_k_Ellipsis), 0, 0, 1, 1},
   {&__pyx_kp_s_Empty_shape_tuple_for_cython_arr, __pyx_k_Empty_shape_tuple_for_cython_arr, sizeof(__pyx_k_Empty_shape_tuple_for_cython_arr), 0, 0, 1, 0},
-  {&__pyx_kp_u_Format_string_allocated_too_shor, __pyx_k_Format_string_allocated_too_shor, sizeof(__pyx_k_Format_string_allocated_too_shor), 0, 1, 0, 0},
-  {&__pyx_kp_u_Format_string_allocated_too_shor_2, __pyx_k_Format_string_allocated_too_shor_2, sizeof(__pyx_k_Format_string_allocated_too_shor_2), 0, 1, 0, 0},
   {&__pyx_n_s_GPy_util_choleskies_cython, __pyx_k_GPy_util_choleskies_cython, sizeof(__pyx_k_GPy_util_choleskies_cython), 0, 0, 1, 1},
   {&__pyx_kp_s_GPy_util_choleskies_cython_pyx, __pyx_k_GPy_util_choleskies_cython_pyx, sizeof(__pyx_k_GPy_util_choleskies_cython_pyx), 0, 0, 1, 0},
   {&__pyx_n_s_ImportError, __pyx_k_ImportError, sizeof(__pyx_k_ImportError), 0, 0, 1, 1},
@@ -20468,11 +19328,9 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_MemoryView_of_r_at_0x_x, __pyx_k_MemoryView_of_r_at_0x_x, sizeof(__pyx_k_MemoryView_of_r_at_0x_x), 0, 0, 1, 0},
   {&__pyx_kp_s_MemoryView_of_r_object, __pyx_k_MemoryView_of_r_object, sizeof(__pyx_k_MemoryView_of_r_object), 0, 0, 1, 0},
   {&__pyx_n_s_N, __pyx_k_N, sizeof(__pyx_k_N), 0, 0, 1, 1},
-  {&__pyx_kp_u_Non_native_byte_order_not_suppor, __pyx_k_Non_native_byte_order_not_suppor, sizeof(__pyx_k_Non_native_byte_order_not_suppor), 0, 1, 0, 0},
   {&__pyx_n_b_O, __pyx_k_O, sizeof(__pyx_k_O), 0, 0, 0, 1},
   {&__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_k_Out_of_bounds_on_buffer_access_a, sizeof(__pyx_k_Out_of_bounds_on_buffer_access_a), 0, 0, 1, 0},
   {&__pyx_n_s_PickleError, __pyx_k_PickleError, sizeof(__pyx_k_PickleError), 0, 0, 1, 1},
-  {&__pyx_n_s_RuntimeError, __pyx_k_RuntimeError, sizeof(__pyx_k_RuntimeError), 0, 0, 1, 1},
   {&__pyx_n_s_TypeError, __pyx_k_TypeError, sizeof(__pyx_k_TypeError), 0, 0, 1, 1},
   {&__pyx_kp_s_Unable_to_convert_item_to_object, __pyx_k_Unable_to_convert_item_to_object, sizeof(__pyx_k_Unable_to_convert_item_to_object), 0, 0, 1, 0},
   {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
@@ -20522,8 +19380,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_mode, __pyx_k_mode, sizeof(__pyx_k_mode), 0, 0, 1, 1},
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   {&__pyx_n_s_name_2, __pyx_k_name_2, sizeof(__pyx_k_name_2), 0, 0, 1, 1},
-  {&__pyx_kp_u_ndarray_is_not_C_contiguous, __pyx_k_ndarray_is_not_C_contiguous, sizeof(__pyx_k_ndarray_is_not_C_contiguous), 0, 1, 0, 0},
-  {&__pyx_kp_u_ndarray_is_not_Fortran_contiguou, __pyx_k_ndarray_is_not_Fortran_contiguou, sizeof(__pyx_k_ndarray_is_not_Fortran_contiguou), 0, 1, 0, 0},
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   {&__pyx_n_s_new, __pyx_k_new, sizeof(__pyx_k_new), 0, 0, 1, 1},
   {&__pyx_kp_s_no_default___reduce___due_to_non, __pyx_k_no_default___reduce___due_to_non, sizeof(__pyx_k_no_default___reduce___due_to_non), 0, 0, 1, 0},
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-  {&__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_k_unknown_dtype_code_in_numpy_pxd, sizeof(__pyx_k_unknown_dtype_code_in_numpy_pxd), 0, 1, 0, 0},
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   {&__pyx_n_s_update, __pyx_k_update, sizeof(__pyx_k_update), 0, 0, 1, 1},
   {&__pyx_n_s_xrange, __pyx_k_xrange, sizeof(__pyx_k_xrange), 0, 0, 1, 1},
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   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(2, 148, __pyx_L1_error)
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- *             info.buf = PyArray_DATA(self)
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-  __Pyx_GIVEREF(__pyx_tuple__6);
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-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+  /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":953
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-  __Pyx_GOTREF(__pyx_tuple__7);
-  __Pyx_GIVEREF(__pyx_tuple__7);
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-  __Pyx_GOTREF(__pyx_tuple__8);
-  __Pyx_GIVEREF(__pyx_tuple__8);
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+  __Pyx_GOTREF(__pyx_tuple__3);
+  __Pyx_GIVEREF(__pyx_tuple__3);
 
   /* "View.MemoryView":136
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@@ -20691,9 +19490,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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  *         if not isinstance(format, bytes):
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-  __Pyx_GOTREF(__pyx_tuple__9);
-  __Pyx_GIVEREF(__pyx_tuple__9);
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+  __Pyx_GOTREF(__pyx_tuple__4);
+  __Pyx_GIVEREF(__pyx_tuple__4);
 
   /* "View.MemoryView":148
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@@ -20702,9 +19501,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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  * 
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-  __Pyx_GOTREF(__pyx_tuple__10);
-  __Pyx_GIVEREF(__pyx_tuple__10);
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+  __Pyx_GOTREF(__pyx_tuple__5);
+  __Pyx_GIVEREF(__pyx_tuple__5);
 
   /* "View.MemoryView":176
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@@ -20713,9 +19512,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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  *             if self.dtype_is_object:
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-  __Pyx_GOTREF(__pyx_tuple__11);
-  __Pyx_GIVEREF(__pyx_tuple__11);
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+  __Pyx_GOTREF(__pyx_tuple__6);
+  __Pyx_GIVEREF(__pyx_tuple__6);
 
   /* "View.MemoryView":192
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@@ -20724,9 +19523,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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  *         info.len = self.len
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-  __pyx_tuple__12 = PyTuple_Pack(1, __pyx_kp_s_Can_only_create_a_buffer_that_is); if (unlikely(!__pyx_tuple__12)) __PYX_ERR(2, 192, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__12);
-  __Pyx_GIVEREF(__pyx_tuple__12);
+  __pyx_tuple__7 = PyTuple_Pack(1, __pyx_kp_s_Can_only_create_a_buffer_that_is); if (unlikely(!__pyx_tuple__7)) __PYX_ERR(2, 192, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_tuple__7);
+  __Pyx_GIVEREF(__pyx_tuple__7);
 
   /* "(tree fragment)":2
  * def __reduce_cython__(self):
@@ -20734,76 +19533,76 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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  *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")
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-  __Pyx_GOTREF(__pyx_tuple__13);
-  __Pyx_GIVEREF(__pyx_tuple__13);
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+  __Pyx_GIVEREF(__pyx_tuple__8);
 
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  *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")
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-  __Pyx_GOTREF(__pyx_tuple__14);
-  __Pyx_GIVEREF(__pyx_tuple__14);
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-  /* "View.MemoryView":414
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  *             raise TypeError("Cannot assign to read-only memoryview")             # <<<<<<<<<<<<<<
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-  __Pyx_GOTREF(__pyx_tuple__15);
-  __Pyx_GIVEREF(__pyx_tuple__15);
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+  __Pyx_GIVEREF(__pyx_tuple__10);
 
-  /* "View.MemoryView":491
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-  __Pyx_GIVEREF(__pyx_tuple__16);
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-  /* "View.MemoryView":566
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-  __Pyx_GOTREF(__pyx_tuple__18);
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-  /* "View.MemoryView":573
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-  PyTuple_SET_ITEM(__pyx_tuple__19, 0, __pyx_int_neg_1);
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-  __Pyx_GIVEREF(__pyx_tuple__20);
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-  __Pyx_GOTREF(__pyx_tuple__21);
-  __Pyx_GIVEREF(__pyx_tuple__21);
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-  __Pyx_GOTREF(__pyx_slice__22);
-  __Pyx_GIVEREF(__pyx_slice__22);
+  __pyx_slice__17 = PySlice_New(Py_None, Py_None, Py_None); if (unlikely(!__pyx_slice__17)) __PYX_ERR(2, 682, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_slice__17);
+  __Pyx_GIVEREF(__pyx_slice__17);
 
-  /* "View.MemoryView":699
+  /* "View.MemoryView":703
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-  __Pyx_GOTREF(__pyx_tuple__23);
-  __Pyx_GIVEREF(__pyx_tuple__23);
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-  __Pyx_GOTREF(__pyx_tuple__24);
-  __Pyx_GIVEREF(__pyx_tuple__24);
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-  __Pyx_GOTREF(__pyx_tuple__25);
-  __Pyx_GIVEREF(__pyx_tuple__25);
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+  __Pyx_GOTREF(__pyx_tuple__21);
+  __Pyx_GIVEREF(__pyx_tuple__21);
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  *     cdef double[:,::1] dL_dK = np.tril(dL)
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-  __pyx_tuple__32 = PyTuple_Pack(7, __pyx_n_s_dL, __pyx_n_s_L, __pyx_n_s_dL_dK, __pyx_n_s_N, __pyx_n_s_k, __pyx_n_s_j, __pyx_n_s_i); if (unlikely(!__pyx_tuple__32)) __PYX_ERR(0, 67, __pyx_L1_error)
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+  __pyx_tuple__27 = PyTuple_Pack(7, __pyx_n_s_dL, __pyx_n_s_L, __pyx_n_s_dL_dK, __pyx_n_s_N, __pyx_n_s_k, __pyx_n_s_j, __pyx_n_s_i); if (unlikely(!__pyx_tuple__27)) __PYX_ERR(0, 67, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_tuple__27);
+  __Pyx_GIVEREF(__pyx_tuple__27);
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@@ -20932,9 +19731,9 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
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-  __Pyx_GOTREF(__pyx_tuple__36);
-  __Pyx_GIVEREF(__pyx_tuple__36);
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-  __Pyx_GOTREF(__pyx_tuple__37);
-  __Pyx_GIVEREF(__pyx_tuple__37);
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-  __Pyx_GOTREF(__pyx_tuple__38);
-  __Pyx_GIVEREF(__pyx_tuple__38);
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  */
-  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_memoryview_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 991, __pyx_L1_error)
+  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_memoryview_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 995, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem((PyObject *)__pyx_memoryviewslice_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(2, 991, __pyx_L1_error)
+  if (PyDict_SetItem((PyObject *)__pyx_memoryviewslice_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(2, 995, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   PyType_Modified(__pyx_memoryviewslice_type);
 
@@ -21744,7 +20585,7 @@ static int __Pyx_ParseOptionalKeywords(
         }
         name = first_kw_arg;
         #if PY_MAJOR_VERSION < 3
-        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+        if (likely(PyString_Check(key))) {
             while (*name) {
                 if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
                         && _PyString_Eq(**name, key)) {
@@ -21771,7 +20612,7 @@ static int __Pyx_ParseOptionalKeywords(
             while (*name) {
                 int cmp = (**name == key) ? 0 :
                 #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                 #endif
                     PyUnicode_Compare(**name, key);
                 if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -21787,7 +20628,7 @@ static int __Pyx_ParseOptionalKeywords(
                 while (argname != first_kw_arg) {
                     int cmp = (**argname == key) ? 0 :
                     #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                     #endif
                         PyUnicode_Compare(**argname, key);
                     if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -21824,6 +20665,32 @@ bad:
     return -1;
 }
 
+/* PyDictVersioning */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
+    PyObject **dictptr = NULL;
+    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
+    if (offset) {
+#if CYTHON_COMPILING_IN_CPYTHON
+        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
+#else
+        dictptr = _PyObject_GetDictPtr(obj);
+#endif
+    }
+    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
+}
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
+        return 0;
+    return obj_dict_version == __Pyx_get_object_dict_version(obj);
+}
+#endif
+
 /* GetModuleGlobalName */
 #if CYTHON_USE_DICT_VERSIONS
 static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
@@ -21913,7 +20780,7 @@ static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args
     return result;
 }
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
     PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
     PyObject *globals = PyFunction_GET_GLOBALS(func);
     PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
@@ -21984,12 +20851,12 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
     }
 #if PY_MAJOR_VERSION >= 3
     result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, kwdefs, closure);
 #else
     result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, closure);
 #endif
@@ -22121,11 +20988,7 @@ __Pyx_init_memviewslice(struct __pyx_memoryview_obj *memview,
     int i, retval=-1;
     Py_buffer *buf = &memview->view;
     __Pyx_RefNannySetupContext("init_memviewslice", 0);
-    if (!buf) {
-        PyErr_SetString(PyExc_ValueError,
-            "buf is NULL.");
-        goto fail;
-    } else if (memviewslice->memview || memviewslice->data) {
+    if (unlikely(memviewslice->memview || memviewslice->data)) {
         PyErr_SetString(PyExc_ValueError,
             "memviewslice is already initialized!");
         goto fail;
@@ -22204,13 +21067,13 @@ __Pyx_INC_MEMVIEW(__Pyx_memviewslice *memslice, int have_gil, int lineno)
 {
     int first_time;
     struct __pyx_memoryview_obj *memview = memslice->memview;
-    if (!memview || (PyObject *) memview == Py_None)
+    if (unlikely(!memview || (PyObject *) memview == Py_None))
         return;
-    if (__pyx_get_slice_count(memview) < 0)
+    if (unlikely(__pyx_get_slice_count(memview) < 0))
         __pyx_fatalerror("Acquisition count is %d (line %d)",
                          __pyx_get_slice_count(memview), lineno);
     first_time = __pyx_add_acquisition_count(memview) == 0;
-    if (first_time) {
+    if (unlikely(first_time)) {
         if (have_gil) {
             Py_INCREF((PyObject *) memview);
         } else {
@@ -22224,18 +21087,16 @@ static CYTHON_INLINE void __Pyx_XDEC_MEMVIEW(__Pyx_memviewslice *memslice,
                                              int have_gil, int lineno) {
     int last_time;
     struct __pyx_memoryview_obj *memview = memslice->memview;
-    if (!memview ) {
-        return;
-    } else if ((PyObject *) memview == Py_None) {
+    if (unlikely(!memview || (PyObject *) memview == Py_None)) {
         memslice->memview = NULL;
         return;
     }
-    if (__pyx_get_slice_count(memview) <= 0)
+    if (unlikely(__pyx_get_slice_count(memview) <= 0))
         __pyx_fatalerror("Acquisition count is %d (line %d)",
                          __pyx_get_slice_count(memview), lineno);
     last_time = __pyx_sub_acquisition_count(memview) == 1;
     memslice->data = NULL;
-    if (last_time) {
+    if (unlikely(last_time)) {
         if (have_gil) {
             Py_CLEAR(memslice->memview);
         } else {
@@ -22322,6 +21183,161 @@ static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
 #endif
 }
 
+/* GetTopmostException */
+#if CYTHON_USE_EXC_INFO_STACK
+static _PyErr_StackItem *
+__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
+{
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
+           exc_info->previous_item != NULL)
+    {
+        exc_info = exc_info->previous_item;
+    }
+    return exc_info;
+}
+#endif
+
+/* SaveResetException */
+#if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    *type = exc_info->exc_type;
+    *value = exc_info->exc_value;
+    *tb = exc_info->exc_traceback;
+    #else
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    #endif
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+}
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = type;
+    exc_info->exc_value = value;
+    exc_info->exc_traceback = tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+}
+#endif
+
+/* PyErrExceptionMatches */
+#if CYTHON_FAST_THREAD_STATE
+static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
+    PyObject *exc_type = tstate->curexc_type;
+    if (exc_type == err) return 1;
+    if (unlikely(!exc_type)) return 0;
+    if (unlikely(PyTuple_Check(err)))
+        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
+    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
+}
+#endif
+
+/* GetException */
+#if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+#endif
+{
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
+#endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
+#endif
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
+    }
+    #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if CYTHON_USE_EXC_INFO_STACK
+    {
+        _PyErr_StackItem *exc_info = tstate->exc_info;
+        tmp_type = exc_info->exc_type;
+        tmp_value = exc_info->exc_value;
+        tmp_tb = exc_info->exc_traceback;
+        exc_info->exc_type = local_type;
+        exc_info->exc_value = local_value;
+        exc_info->exc_traceback = local_tb;
+    }
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
+
 /* RaiseException */
 #if PY_MAJOR_VERSION < 3
 static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
@@ -22481,216 +21497,6 @@ bad:
 }
 #endif
 
-/* DictGetItem */
-#if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
-static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key) {
-    PyObject *value;
-    value = PyDict_GetItemWithError(d, key);
-    if (unlikely(!value)) {
-        if (!PyErr_Occurred()) {
-            if (unlikely(PyTuple_Check(key))) {
-                PyObject* args = PyTuple_Pack(1, key);
-                if (likely(args)) {
-                    PyErr_SetObject(PyExc_KeyError, args);
-                    Py_DECREF(args);
-                }
-            } else {
-                PyErr_SetObject(PyExc_KeyError, key);
-            }
-        }
-        return NULL;
-    }
-    Py_INCREF(value);
-    return value;
-}
-#endif
-
-/* RaiseTooManyValuesToUnpack */
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
-    PyErr_Format(PyExc_ValueError,
-                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
-}
-
-/* RaiseNeedMoreValuesToUnpack */
-static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
-    PyErr_Format(PyExc_ValueError,
-                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
-                 index, (index == 1) ? "" : "s");
-}
-
-/* RaiseNoneIterError */
-static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
-}
-
-/* ExtTypeTest */
-static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
-    }
-    if (likely(__Pyx_TypeCheck(obj, type)))
-        return 1;
-    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
-                 Py_TYPE(obj)->tp_name, type->tp_name);
-    return 0;
-}
-
-/* GetTopmostException */
-#if CYTHON_USE_EXC_INFO_STACK
-static _PyErr_StackItem *
-__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
-{
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
-           exc_info->previous_item != NULL)
-    {
-        exc_info = exc_info->previous_item;
-    }
-    return exc_info;
-}
-#endif
-
-/* SaveResetException */
-#if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
-    *type = exc_info->exc_type;
-    *value = exc_info->exc_value;
-    *tb = exc_info->exc_traceback;
-    #else
-    *type = tstate->exc_type;
-    *value = tstate->exc_value;
-    *tb = tstate->exc_traceback;
-    #endif
-    Py_XINCREF(*type);
-    Py_XINCREF(*value);
-    Py_XINCREF(*tb);
-}
-static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    tmp_type = exc_info->exc_type;
-    tmp_value = exc_info->exc_value;
-    tmp_tb = exc_info->exc_traceback;
-    exc_info->exc_type = type;
-    exc_info->exc_value = value;
-    exc_info->exc_traceback = tb;
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = type;
-    tstate->exc_value = value;
-    tstate->exc_traceback = tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-}
-#endif
-
-/* PyErrExceptionMatches */
-#if CYTHON_FAST_THREAD_STATE
-static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    n = PyTuple_GET_SIZE(tuple);
-#if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
-    }
-#endif
-    for (i=0; i<n; i++) {
-        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
-    }
-    return 0;
-}
-static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
-    PyObject *exc_type = tstate->curexc_type;
-    if (exc_type == err) return 1;
-    if (unlikely(!exc_type)) return 0;
-    if (unlikely(PyTuple_Check(err)))
-        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
-    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
-}
-#endif
-
-/* GetException */
-#if CYTHON_FAST_THREAD_STATE
-static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
-#else
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
-#endif
-{
-    PyObject *local_type, *local_value, *local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    local_type = tstate->curexc_type;
-    local_value = tstate->curexc_value;
-    local_tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-#else
-    PyErr_Fetch(&local_type, &local_value, &local_tb);
-#endif
-    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-#if CYTHON_FAST_THREAD_STATE
-    if (unlikely(tstate->curexc_type))
-#else
-    if (unlikely(PyErr_Occurred()))
-#endif
-        goto bad;
-    #if PY_MAJOR_VERSION >= 3
-    if (local_tb) {
-        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
-            goto bad;
-    }
-    #endif
-    Py_XINCREF(local_tb);
-    Py_XINCREF(local_type);
-    Py_XINCREF(local_value);
-    *type = local_type;
-    *value = local_value;
-    *tb = local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    #if CYTHON_USE_EXC_INFO_STACK
-    {
-        _PyErr_StackItem *exc_info = tstate->exc_info;
-        tmp_type = exc_info->exc_type;
-        tmp_value = exc_info->exc_value;
-        tmp_tb = exc_info->exc_traceback;
-        exc_info->exc_type = local_type;
-        exc_info->exc_value = local_value;
-        exc_info->exc_traceback = local_tb;
-    }
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = local_type;
-    tstate->exc_value = local_value;
-    tstate->exc_traceback = local_tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-#else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
-#endif
-    return 0;
-bad:
-    *type = 0;
-    *value = 0;
-    *tb = 0;
-    Py_XDECREF(local_type);
-    Py_XDECREF(local_value);
-    Py_XDECREF(local_tb);
-    return -1;
-}
-
 /* ArgTypeTest */
 static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
 {
@@ -23020,9 +21826,9 @@ static CYTHON_INLINE PyObject* __Pyx_decode_c_string(
         if (stop < 0)
             stop += length;
     }
+    if (unlikely(stop <= start))
+        return __Pyx_NewRef(__pyx_empty_unicode);
     length = stop - start;
-    if (unlikely(length <= 0))
-        return PyUnicode_FromUnicode(NULL, 0);
     cstring += start;
     if (decode_func) {
         return decode_func(cstring, length, errors);
@@ -23046,6 +21852,37 @@ static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *o, PyObject *n, PyObject
     return (likely(r)) ? r : __Pyx_GetAttr3Default(d);
 }
 
+/* RaiseTooManyValuesToUnpack */
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+/* RaiseNeedMoreValuesToUnpack */
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+/* RaiseNoneIterError */
+static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
+}
+
+/* ExtTypeTest */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
+    }
+    if (likely(__Pyx_TypeCheck(obj, type)))
+        return 1;
+    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
+                 Py_TYPE(obj)->tp_name, type->tp_name);
+    return 0;
+}
+
 /* SwapException */
 #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
@@ -23111,7 +21948,7 @@ static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
     {
         #if PY_MAJOR_VERSION >= 3
         if (level == -1) {
-            if (strchr(__Pyx_MODULE_NAME, '.')) {
+            if ((1) && (strchr(__Pyx_MODULE_NAME, '.'))) {
                 module = PyImport_ImportModuleLevelObject(
                     name, global_dict, empty_dict, list, 1);
                 if (!module) {
@@ -23248,7 +22085,9 @@ static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObj
 
 /* PyIntBinop */
 #if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, CYTHON_UNUSED long intval, CYTHON_UNUSED int inplace) {
+static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, CYTHON_UNUSED long intval, int inplace, int zerodivision_check) {
+    (void)inplace;
+    (void)zerodivision_check;
     #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_CheckExact(op1))) {
         const long b = intval;
@@ -23473,6 +22312,28 @@ bad:
     return -1;
 }
 
+/* PyObjectGetAttrStrNoError */
+static void __Pyx_PyObject_GetAttrStr_ClearAttributeError(void) {
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    if (likely(__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
+        __Pyx_PyErr_Clear();
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_TYPE_SLOTS && PY_VERSION_HEX >= 0x030700B1
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro == PyObject_GenericGetAttr)) {
+        return _PyObject_GenericGetAttrWithDict(obj, attr_name, NULL, 1);
+    }
+#endif
+    result = __Pyx_PyObject_GetAttrStr(obj, attr_name);
+    if (unlikely(!result)) {
+        __Pyx_PyObject_GetAttrStr_ClearAttributeError();
+    }
+    return result;
+}
+
 /* SetupReduce */
 static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
   int ret;
@@ -23500,43 +22361,51 @@ static int __Pyx_setup_reduce(PyObject* type_obj) {
     PyObject *setstate = NULL;
     PyObject *setstate_cython = NULL;
 #if CYTHON_USE_PYTYPE_LOOKUP
-    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto GOOD;
+    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
 #else
-    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto GOOD;
+    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
 #endif
 #if CYTHON_USE_PYTYPE_LOOKUP
-    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
+    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
 #else
-    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
+    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
 #endif
-    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto BAD;
+    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto __PYX_BAD;
     if (reduce_ex == object_reduce_ex) {
 #if CYTHON_USE_PYTYPE_LOOKUP
-        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
+        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
 #else
-        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
+        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
 #endif
-        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto BAD;
+        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto __PYX_BAD;
         if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
-            reduce_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_cython); if (unlikely(!reduce_cython)) goto BAD;
-            ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto BAD;
-            ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto BAD;
+            reduce_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_reduce_cython);
+            if (likely(reduce_cython)) {
+                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+            } else if (reduce == object_reduce || PyErr_Occurred()) {
+                goto __PYX_BAD;
+            }
             setstate = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate);
             if (!setstate) PyErr_Clear();
             if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
-                setstate_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate_cython); if (unlikely(!setstate_cython)) goto BAD;
-                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto BAD;
-                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto BAD;
+                setstate_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate_cython);
+                if (likely(setstate_cython)) {
+                    ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                    ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                } else if (!setstate || PyErr_Occurred()) {
+                    goto __PYX_BAD;
+                }
             }
             PyType_Modified((PyTypeObject*)type_obj);
         }
     }
-    goto GOOD;
-BAD:
+    goto __PYX_GOOD;
+__PYX_BAD:
     if (!PyErr_Occurred())
         PyErr_Format(PyExc_RuntimeError, "Unable to initialize pickling for %s", ((PyTypeObject*)type_obj)->tp_name);
     ret = -1;
-GOOD:
+__PYX_GOOD:
 #if !CYTHON_USE_PYTYPE_LOOKUP
     Py_XDECREF(object_reduce);
     Py_XDECREF(object_reduce_ex);
@@ -23612,7 +22481,7 @@ bad:
 
 /* CLineInTraceback */
 #ifndef CYTHON_CLINE_IN_TRACEBACK
-static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
+static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int c_line) {
     PyObject *use_cline;
     PyObject *ptype, *pvalue, *ptraceback;
 #if CYTHON_COMPILING_IN_CPYTHON
@@ -23716,7 +22585,7 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
     if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
         int new_max = __pyx_code_cache.max_count + 64;
         entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
-            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+            __pyx_code_cache.entries, ((size_t)new_max) * sizeof(__Pyx_CodeObjectCacheEntry));
         if (unlikely(!entries)) {
             return;
         }
@@ -23820,7 +22689,6 @@ bad:
 #if PY_MAJOR_VERSION < 3
 static int __Pyx_GetBuffer(PyObject *obj, Py_buffer *view, int flags) {
     if (PyObject_CheckBuffer(obj)) return PyObject_GetBuffer(obj, view, flags);
-        if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) return __pyx_pw_5numpy_7ndarray_1__getbuffer__(obj, view, flags);
         if (__Pyx_TypeCheck(obj, __pyx_array_type)) return __pyx_array_getbuffer(obj, view, flags);
         if (__Pyx_TypeCheck(obj, __pyx_memoryview_type)) return __pyx_memoryview_getbuffer(obj, view, flags);
     PyErr_Format(PyExc_TypeError, "'%.200s' does not have the buffer interface", Py_TYPE(obj)->tp_name);
@@ -23834,7 +22702,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
         return;
     }
     if ((0)) {}
-        else if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) __pyx_pw_5numpy_7ndarray_3__releasebuffer__(obj, view);
     view->obj = NULL;
     Py_DECREF(obj);
 }
@@ -23958,7 +22825,7 @@ static int __Pyx_BufFmt_ParseNumber(const char** ts) {
       return -1;
     } else {
         count = *t++ - '0';
-        while (*t >= '0' && *t < '9') {
+        while (*t >= '0' && *t <= '9') {
             count *= 10;
             count += *t++ - '0';
         }
@@ -23979,6 +22846,7 @@ static void __Pyx_BufFmt_RaiseUnexpectedChar(char ch) {
 }
 static const char* __Pyx_BufFmt_DescribeTypeChar(char ch, int is_complex) {
   switch (ch) {
+    case '?': return "'bool'";
     case 'c': return "'char'";
     case 'b': return "'signed char'";
     case 'B': return "'unsigned char'";
@@ -24021,7 +22889,7 @@ static size_t __Pyx_BufFmt_TypeCharToStandardSize(char ch, int is_complex) {
 }
 static size_t __Pyx_BufFmt_TypeCharToNativeSize(char ch, int is_complex) {
   switch (ch) {
-    case 'c': case 'b': case 'B': case 's': case 'p': return 1;
+    case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
     case 'h': case 'H': return sizeof(short);
     case 'i': case 'I': return sizeof(int);
     case 'l': case 'L': return sizeof(long);
@@ -24105,7 +22973,7 @@ static char __Pyx_BufFmt_TypeCharToGroup(char ch, int is_complex) {
     case 'b': case 'h': case 'i':
     case 'l': case 'q': case 's': case 'p':
         return 'I';
-    case 'B': case 'H': case 'I': case 'L': case 'Q':
+    case '?': case 'B': case 'H': case 'I': case 'L': case 'Q':
         return 'U';
     case 'f': case 'd': case 'g':
         return (is_complex ? 'C' : 'R');
@@ -24249,9 +23117,7 @@ static PyObject *
 __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
 {
     const char *ts = *tsp;
-    int i = 0, number;
-    int ndim = ctx->head->field->type->ndim;
-;
+    int i = 0, number, ndim;
     ++ts;
     if (ctx->new_count != 1) {
         PyErr_SetString(PyExc_ValueError,
@@ -24259,6 +23125,7 @@ __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
         return NULL;
     }
     if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
+    ndim = ctx->head->field->type->ndim;
     while (*ts && *ts != ')') {
         switch (*ts) {
             case ' ': case '\f': case '\r': case '\n': case '\t': case '\v':  continue;
@@ -24384,12 +23251,12 @@ static const char* __Pyx_BufFmt_CheckString(__Pyx_BufFmt_Context* ctx, const cha
           return NULL;
         }
         CYTHON_FALLTHROUGH;
-      case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
+      case '?': case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
       case 'l': case 'L': case 'q': case 'Q':
       case 'f': case 'd': case 'g':
       case 'O': case 'p':
-        if (ctx->enc_type == *ts && got_Z == ctx->is_complex &&
-            ctx->enc_packmode == ctx->new_packmode) {
+        if ((ctx->enc_type == *ts) && (got_Z == ctx->is_complex) &&
+            (ctx->enc_packmode == ctx->new_packmode) && (!ctx->is_valid_array)) {
           ctx->enc_count += ctx->new_count;
           ctx->new_count = 1;
           got_Z = 0;
@@ -24475,13 +23342,13 @@ __pyx_check_strides(Py_buffer *buf, int dim, int ndim, int spec)
     if (buf->strides) {
         if (spec & __Pyx_MEMVIEW_CONTIG) {
             if (spec & (__Pyx_MEMVIEW_PTR|__Pyx_MEMVIEW_FULL)) {
-                if (buf->strides[dim] != sizeof(void *)) {
+                if (unlikely(buf->strides[dim] != sizeof(void *))) {
                     PyErr_Format(PyExc_ValueError,
                                  "Buffer is not indirectly contiguous "
                                  "in dimension %d.", dim);
                     goto fail;
                 }
-            } else if (buf->strides[dim] != buf->itemsize) {
+            } else if (unlikely(buf->strides[dim] != buf->itemsize)) {
                 PyErr_SetString(PyExc_ValueError,
                                 "Buffer and memoryview are not contiguous "
                                 "in the same dimension.");
@@ -24492,7 +23359,7 @@ __pyx_check_strides(Py_buffer *buf, int dim, int ndim, int spec)
             Py_ssize_t stride = buf->strides[dim];
             if (stride < 0)
                 stride = -stride;
-            if (stride < buf->itemsize) {
+            if (unlikely(stride < buf->itemsize)) {
                 PyErr_SetString(PyExc_ValueError,
                                 "Buffer and memoryview are not contiguous "
                                 "in the same dimension.");
@@ -24500,17 +23367,17 @@ __pyx_check_strides(Py_buffer *buf, int dim, int ndim, int spec)
             }
         }
     } else {
-        if (spec & __Pyx_MEMVIEW_CONTIG && dim != ndim - 1) {
+        if (unlikely(spec & __Pyx_MEMVIEW_CONTIG && dim != ndim - 1)) {
             PyErr_Format(PyExc_ValueError,
                          "C-contiguous buffer is not contiguous in "
                          "dimension %d", dim);
             goto fail;
-        } else if (spec & (__Pyx_MEMVIEW_PTR)) {
+        } else if (unlikely(spec & (__Pyx_MEMVIEW_PTR))) {
             PyErr_Format(PyExc_ValueError,
                          "C-contiguous buffer is not indirect in "
                          "dimension %d", dim);
             goto fail;
-        } else if (buf->suboffsets) {
+        } else if (unlikely(buf->suboffsets)) {
             PyErr_SetString(PyExc_ValueError,
                             "Buffer exposes suboffsets but no strides");
             goto fail;
@@ -24524,7 +23391,7 @@ static int
 __pyx_check_suboffsets(Py_buffer *buf, int dim, CYTHON_UNUSED int ndim, int spec)
 {
     if (spec & __Pyx_MEMVIEW_DIRECT) {
-        if (buf->suboffsets && buf->suboffsets[dim] >= 0) {
+        if (unlikely(buf->suboffsets && buf->suboffsets[dim] >= 0)) {
             PyErr_Format(PyExc_ValueError,
                          "Buffer not compatible with direct access "
                          "in dimension %d.", dim);
@@ -24532,7 +23399,7 @@ __pyx_check_suboffsets(Py_buffer *buf, int dim, CYTHON_UNUSED int ndim, int spec
         }
     }
     if (spec & __Pyx_MEMVIEW_PTR) {
-        if (!buf->suboffsets || (buf->suboffsets && buf->suboffsets[dim] < 0)) {
+        if (unlikely(!buf->suboffsets || (buf->suboffsets[dim] < 0))) {
             PyErr_Format(PyExc_ValueError,
                          "Buffer is not indirectly accessible "
                          "in dimension %d.", dim);
@@ -24550,9 +23417,7 @@ __pyx_verify_contig(Py_buffer *buf, int ndim, int c_or_f_flag)
     if (c_or_f_flag & __Pyx_IS_F_CONTIG) {
         Py_ssize_t stride = 1;
         for (i = 0; i < ndim; i++) {
-            if (stride * buf->itemsize != buf->strides[i] &&
-                    buf->shape[i] > 1)
-            {
+            if (unlikely(stride * buf->itemsize != buf->strides[i]  &&  buf->shape[i] > 1)) {
                 PyErr_SetString(PyExc_ValueError,
                     "Buffer not fortran contiguous.");
                 goto fail;
@@ -24562,8 +23427,7 @@ __pyx_verify_contig(Py_buffer *buf, int ndim, int c_or_f_flag)
     } else if (c_or_f_flag & __Pyx_IS_C_CONTIG) {
         Py_ssize_t stride = 1;
         for (i = ndim - 1; i >- 1; i--) {
-            if (stride * buf->itemsize != buf->strides[i] &&
-                    buf->shape[i] > 1) {
+            if (unlikely(stride * buf->itemsize != buf->strides[i]  &&  buf->shape[i] > 1)) {
                 PyErr_SetString(PyExc_ValueError,
                     "Buffer not C contiguous.");
                 goto fail;
@@ -24604,7 +23468,7 @@ static int __Pyx_ValidateAndInit_memviewslice(
             goto fail;
     }
     buf = &memview->view;
-    if (buf->ndim != ndim) {
+    if (unlikely(buf->ndim != ndim)) {
         PyErr_Format(PyExc_ValueError,
                 "Buffer has wrong number of dimensions (expected %d, got %d)",
                 ndim, buf->ndim);
@@ -24612,9 +23476,9 @@ static int __Pyx_ValidateAndInit_memviewslice(
     }
     if (new_memview) {
         __Pyx_BufFmt_Init(&ctx, stack, dtype);
-        if (!__Pyx_BufFmt_CheckString(&ctx, buf->format)) goto fail;
+        if (unlikely(!__Pyx_BufFmt_CheckString(&ctx, buf->format))) goto fail;
     }
-    if ((unsigned) buf->itemsize != dtype->size) {
+    if (unlikely((unsigned) buf->itemsize != dtype->size)) {
         PyErr_Format(PyExc_ValueError,
                      "Item size of buffer (%" CYTHON_FORMAT_SSIZE_T "u byte%s) "
                      "does not match size of '%s' (%" CYTHON_FORMAT_SSIZE_T "u byte%s)",
@@ -24625,15 +23489,17 @@ static int __Pyx_ValidateAndInit_memviewslice(
                      (dtype->size > 1) ? "s" : "");
         goto fail;
     }
-    for (i = 0; i < ndim; i++) {
-        spec = axes_specs[i];
-        if (!__pyx_check_strides(buf, i, ndim, spec))
-            goto fail;
-        if (!__pyx_check_suboffsets(buf, i, ndim, spec))
+    if (buf->len > 0) {
+        for (i = 0; i < ndim; i++) {
+            spec = axes_specs[i];
+            if (unlikely(!__pyx_check_strides(buf, i, ndim, spec)))
+                goto fail;
+            if (unlikely(!__pyx_check_suboffsets(buf, i, ndim, spec)))
+                goto fail;
+        }
+        if (unlikely(buf->strides && !__pyx_verify_contig(buf, ndim, c_or_f_flag)))
             goto fail;
     }
-    if (buf->strides && !__pyx_verify_contig(buf, ndim, c_or_f_flag))
-        goto fail;
     if (unlikely(__Pyx_init_memviewslice(memview, ndim, memviewslice,
                                          new_memview != NULL) == -1)) {
         goto fail;
@@ -24843,13 +23709,13 @@ static CYTHON_INLINE int __pyx_memview_set_double(const char *itemp, PyObject *o
                 return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 float r = b.imag / b.real;
-                float s = 1.0 / (b.real + b.imag * r);
+                float s = (float)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_float_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             float r = b.real / b.imag;
-            float s = 1.0 / (b.imag + b.real * r);
+            float s = (float)(1.0) / (b.imag + b.real * r);
             return __pyx_t_float_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -24907,7 +23773,6 @@ static CYTHON_INLINE int __pyx_memview_set_double(const char *itemp, PyObject *o
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_float(a, a);
                         return __Pyx_c_prod_float(a, a);
                     case 3:
                         z = __Pyx_c_prod_float(a, a);
@@ -24929,7 +23794,7 @@ static CYTHON_INLINE int __pyx_memview_set_double(const char *itemp, PyObject *o
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2f(0, -1);
+                    theta = atan2f(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_float(a);
@@ -24998,13 +23863,13 @@ static CYTHON_INLINE int __pyx_memview_set_double(const char *itemp, PyObject *o
                 return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 double r = b.imag / b.real;
-                double s = 1.0 / (b.real + b.imag * r);
+                double s = (double)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_double_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             double r = b.real / b.imag;
-            double s = 1.0 / (b.imag + b.real * r);
+            double s = (double)(1.0) / (b.imag + b.real * r);
             return __pyx_t_double_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -25062,7 +23927,6 @@ static CYTHON_INLINE int __pyx_memview_set_double(const char *itemp, PyObject *o
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_double(a, a);
                         return __Pyx_c_prod_double(a, a);
                     case 3:
                         z = __Pyx_c_prod_double(a, a);
@@ -25084,7 +23948,7 @@ static CYTHON_INLINE int __pyx_memview_set_double(const char *itemp, PyObject *o
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2(0, -1);
+                    theta = atan2(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_double(a);
@@ -25100,37 +23964,6 @@ static CYTHON_INLINE int __pyx_memview_set_double(const char *itemp, PyObject *o
     #endif
 #endif
 
-/* CIntToPy */
-  static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value) {
-    const enum NPY_TYPES neg_one = (enum NPY_TYPES) ((enum NPY_TYPES) 0 - (enum NPY_TYPES) 1), const_zero = (enum NPY_TYPES) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(enum NPY_TYPES) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(enum NPY_TYPES) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(enum NPY_TYPES),
-                                     little, !is_unsigned);
-    }
-}
-
 /* MemviewSliceCopyTemplate */
   static __Pyx_memviewslice
 __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
@@ -25149,7 +23982,7 @@ __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
     struct __pyx_memoryview_obj *memview_obj = NULL;
     __Pyx_RefNannySetupContext("__pyx_memoryview_copy_new_contig", 0);
     for (i = 0; i < ndim; i++) {
-        if (from_mvs->suboffsets[i] >= 0) {
+        if (unlikely(from_mvs->suboffsets[i] >= 0)) {
             PyErr_Format(PyExc_ValueError, "Cannot copy memoryview slice with "
                                            "indirect dimensions (axis %d)", i);
             goto fail;
diff --git a/GPy/util/datasets.py b/GPy/util/datasets.py
index 035f7b75..c406ed7b 100644
--- a/GPy/util/datasets.py
+++ b/GPy/util/datasets.py
@@ -500,7 +500,15 @@ def drosophila_knirps(data_set='drosophila_protein'):
 
 # This will be for downloading google trends data.
 def google_trends(query_terms=['big data', 'machine learning', 'data science'], data_set='google_trends', refresh_data=False):
-    """Data downloaded from Google trends for given query terms. Warning, if you use this function multiple times in a row you get blocked due to terms of service violations. The function will cache the result of your query, if you wish to refresh an old query set refresh_data to True. The function is inspired by this notebook: http://nbviewer.ipython.org/github/sahuguet/notebooks/blob/master/GoogleTrends%20meet%20Notebook.ipynb"""
+    """Data downloaded from Google trends for given query terms.
+
+Warning, if you use this function multiple times in a row you get
+blocked due to terms of service violations. The function will cache
+the result of your query, if you wish to refresh an old query set
+refresh_data to True.
+
+The function is inspired by this notebook:
+http://nbviewer.ipython.org/github/sahuguet/notebooks/blob/master/GoogleTrends%20meet%20Notebook.ipynb"""
     query_terms.sort()
     import pandas
 
diff --git a/GPy/util/linalg_cython.c b/GPy/util/linalg_cython.c
index d48e943a..e576b9ed 100644
--- a/GPy/util/linalg_cython.c
+++ b/GPy/util/linalg_cython.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.29.2 */
+/* Generated by Cython 0.29.21 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,8 +7,8 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_29_2"
-#define CYTHON_HEX_VERSION 0x001D02F0
+#define CYTHON_ABI "0_29_21"
+#define CYTHON_HEX_VERSION 0x001D15F0
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -310,8 +310,13 @@
   #define __Pyx_DefaultClassType PyClass_Type
 #else
   #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+#if PY_VERSION_HEX >= 0x030800A4 && PY_VERSION_HEX < 0x030800B2
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, 0, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#else
   #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#endif
   #define __Pyx_DefaultClassType PyType_Type
 #endif
 #ifndef Py_TPFLAGS_CHECKTYPES
@@ -346,26 +351,6 @@
 #else
 #define __Pyx_PyFastCFunction_Check(func) 0
 #endif
-#if CYTHON_USE_DICT_VERSIONS
-#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
-    (version_var) = __PYX_GET_DICT_VERSION(dict);\
-    (cache_var) = (value);
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
-        static PY_UINT64_T __pyx_dict_version = 0;\
-        static PyObject *__pyx_dict_cached_value = NULL;\
-        if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
-            (VAR) = __pyx_dict_cached_value;\
-        } else {\
-            (VAR) = __pyx_dict_cached_value = (LOOKUP);\
-            __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
-        }\
-    }
-#else
-#define __PYX_GET_DICT_VERSION(dict)  (0)
-#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
-#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
-#endif
 #if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
   #define PyObject_Malloc(s)   PyMem_Malloc(s)
   #define PyObject_Free(p)     PyMem_Free(p)
@@ -398,7 +383,7 @@
 typedef int Py_tss_t;
 static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
   *key = PyThread_create_key();
-  return 0; // PyThread_create_key reports success always
+  return 0;
 }
 static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
   Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
@@ -421,7 +406,7 @@ static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
 static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   return PyThread_get_key_value(*key);
 }
-#endif // TSS (Thread Specific Storage) API
+#endif
 #if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
 #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
 #else
@@ -450,7 +435,11 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
   #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
   #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
+  #if defined(PyUnicode_IS_READY) && defined(PyUnicode_GET_SIZE)
   #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+  #else
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
+  #endif
 #else
   #define CYTHON_PEP393_ENABLED 0
   #define PyUnicode_1BYTE_KIND  1
@@ -499,8 +488,10 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+#ifndef PyObject_Unicode
   #define PyObject_Unicode             PyObject_Str
 #endif
+#endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
   #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
@@ -511,6 +502,13 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
 #ifndef PySet_CheckExact
   #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
 #endif
+#if PY_VERSION_HEX >= 0x030900A4
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SET_SIZE(obj, size)
+#else
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
+#endif
 #if CYTHON_ASSUME_SAFE_MACROS
   #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
 #else
@@ -550,7 +548,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
 #endif
 #if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? ((void)(klass), PyMethod_New(func, self)) : __Pyx_NewRef(func))
 #else
   #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
 #endif
@@ -591,11 +589,10 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __Pyx_truncl truncl
 #endif
 
-
+#define __PYX_MARK_ERR_POS(f_index, lineno) \
+    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
 #define __PYX_ERR(f_index, lineno, Ln_error) \
-{ \
-  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
-}
+    { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }
 
 #ifndef __PYX_EXTERN_C
   #ifdef __cplusplus
@@ -612,7 +609,13 @@ static CYTHON_INLINE float __PYX_NAN() {
 #include <string.h>
 #include <stdio.h>
 #include "numpy/arrayobject.h"
+#include "numpy/ndarrayobject.h"
+#include "numpy/ndarraytypes.h"
+#include "numpy/arrayscalars.h"
 #include "numpy/ufuncobject.h"
+
+    /* NumPy API declarations from "numpy/__init__.pxd" */
+    
 #include "pythread.h"
 #ifdef _OPENMP
 #include <omp.h>
@@ -626,7 +629,8 @@ typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* enc
                 const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
 
 #define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
-#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_UTF8 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT (PY_MAJOR_VERSION >= 3 && __PYX_DEFAULT_STRING_ENCODING_IS_UTF8)
 #define __PYX_DEFAULT_STRING_ENCODING ""
 #define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
 #define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
@@ -898,7 +902,7 @@ typedef struct {
 #endif
 
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":690
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -907,7 +911,7 @@ typedef struct {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":691
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -916,7 +920,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":692
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -925,7 +929,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":693
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -934,7 +938,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":697
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -943,7 +947,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":698
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -952,7 +956,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":699
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -961,7 +965,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":700
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -970,7 +974,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":704
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -979,7 +983,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":705
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -988,7 +992,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":714
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -997,7 +1001,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":715
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -1006,7 +1010,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":716
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -1015,7 +1019,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":718
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -1024,7 +1028,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":719
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -1033,7 +1037,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":720
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -1042,7 +1046,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":722
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -1051,7 +1055,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":723
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -1060,7 +1064,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":725
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1069,7 +1073,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":726
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1078,7 +1082,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":727
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1113,7 +1117,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 
 /*--- Type declarations ---*/
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":729
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1122,7 +1126,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":730
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1131,7 +1135,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":731
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1140,7 +1144,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
+/* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":733
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1300,77 +1304,6 @@ static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject
 #endif
 
 #define __Pyx_BufPtrStrided1d(type, buf, i0, s0) (type)((char*)buf + i0 * s0)
-/* PyObjectCall.proto */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
-#else
-#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
-#endif
-
-/* RaiseException.proto */
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
-
-/* PyCFunctionFastCall.proto */
-#if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
-#else
-#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
-#endif
-
-/* PyFunctionFastCall.proto */
-#if CYTHON_FAST_PYCALL
-#define __Pyx_PyFunction_FastCall(func, args, nargs)\
-    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
-#if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
-#else
-#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
-#endif
-#define __Pyx_BUILD_ASSERT_EXPR(cond)\
-    (sizeof(char [1 - 2*!(cond)]) - 1)
-#ifndef Py_MEMBER_SIZE
-#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
-#endif
-  static size_t __pyx_pyframe_localsplus_offset = 0;
-  #include "frameobject.h"
-  #define __Pxy_PyFrame_Initialize_Offsets()\
-    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
-     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
-  #define __Pyx_PyFrame_GetLocalsplus(frame)\
-    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
-#endif
-
-/* PyObjectCallMethO.proto */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
-#endif
-
-/* PyObjectCallOneArg.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
-
-/* DictGetItem.proto */
-#if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
-static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key);
-#define __Pyx_PyObject_Dict_GetItem(obj, name)\
-    (likely(PyDict_CheckExact(obj)) ?\
-     __Pyx_PyDict_GetItem(obj, name) : PyObject_GetItem(obj, name))
-#else
-#define __Pyx_PyDict_GetItem(d, key) PyObject_GetItem(d, key)
-#define __Pyx_PyObject_Dict_GetItem(obj, name)  PyObject_GetItem(obj, name)
-#endif
-
-/* RaiseTooManyValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
-
-/* RaiseNeedMoreValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
-
-/* RaiseNoneIterError.proto */
-static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
-
-/* ExtTypeTest.proto */
-static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
-
 /* GetTopmostException.proto */
 #if CYTHON_USE_EXC_INFO_STACK
 static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate);
@@ -1403,6 +1336,16 @@ static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
 #endif
 
+/* PyObjectCall.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
+/* RaiseException.proto */
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
 /* TypeImport.proto */
 #ifndef __PYX_HAVE_RT_ImportType_proto
 #define __PYX_HAVE_RT_ImportType_proto
@@ -1414,6 +1357,32 @@ enum __Pyx_ImportType_CheckSize {
 static PyTypeObject *__Pyx_ImportType(PyObject* module, const char *module_name, const char *class_name, size_t size, enum __Pyx_ImportType_CheckSize check_size);
 #endif
 
+/* PyDictVersioning.proto */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+#define __PYX_DICT_VERSION_INIT  ((PY_UINT64_T) -1)
+#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
+    (version_var) = __PYX_GET_DICT_VERSION(dict);\
+    (cache_var) = (value);
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
+        (VAR) = __pyx_dict_cached_value;\
+    } else {\
+        (VAR) = __pyx_dict_cached_value = (LOOKUP);\
+        __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
+    }\
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj);
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj);
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version);
+#else
+#define __PYX_GET_DICT_VERSION(dict)  (0)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
+#endif
+
 /* CLineInTraceback.proto */
 #ifdef CYTHON_CLINE_IN_TRACEBACK
 #define __Pyx_CLineForTraceback(tstate, c_line)  (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0)
@@ -1564,9 +1533,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
     #endif
 #endif
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
-
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
@@ -1688,8 +1654,17 @@ static PyTypeObject *__pyx_ptype_5numpy_dtype = 0;
 static PyTypeObject *__pyx_ptype_5numpy_flatiter = 0;
 static PyTypeObject *__pyx_ptype_5numpy_broadcast = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ndarray = 0;
+static PyTypeObject *__pyx_ptype_5numpy_generic = 0;
+static PyTypeObject *__pyx_ptype_5numpy_number = 0;
+static PyTypeObject *__pyx_ptype_5numpy_integer = 0;
+static PyTypeObject *__pyx_ptype_5numpy_signedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_unsignedinteger = 0;
+static PyTypeObject *__pyx_ptype_5numpy_inexact = 0;
+static PyTypeObject *__pyx_ptype_5numpy_floating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_complexfloating = 0;
+static PyTypeObject *__pyx_ptype_5numpy_flexible = 0;
+static PyTypeObject *__pyx_ptype_5numpy_character = 0;
 static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
-static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
 
 /* Module declarations from 'cython' */
 
@@ -1701,9 +1676,6 @@ int __pyx_module_is_main_GPy__util__linalg_cython = 0;
 
 /* Implementation of 'GPy.util.linalg_cython' */
 static PyObject *__pyx_builtin_xrange;
-static PyObject *__pyx_builtin_ValueError;
-static PyObject *__pyx_builtin_range;
-static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
 static const char __pyx_k_A[] = "A";
 static const char __pyx_k_L[] = "L";
@@ -1720,33 +1692,20 @@ static const char __pyx_k_test[] = "__test__";
 static const char __pyx_k_range[] = "range";
 static const char __pyx_k_upper[] = "upper";
 static const char __pyx_k_xrange[] = "xrange";
-static const char __pyx_k_ValueError[] = "ValueError";
 static const char __pyx_k_cholupdate[] = "cholupdate";
 static const char __pyx_k_symmetrify[] = "symmetrify";
 static const char __pyx_k_ImportError[] = "ImportError";
-static const char __pyx_k_RuntimeError[] = "RuntimeError";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static const char __pyx_k_GPy_util_linalg_cython[] = "GPy.util.linalg_cython";
 static const char __pyx_k_GPy_util_linalg_cython_pyx[] = "GPy/util/linalg_cython.pyx";
-static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
 static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
-static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
-static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
-static const char __pyx_k_Non_native_byte_order_not_suppor[] = "Non-native byte order not supported";
-static const char __pyx_k_ndarray_is_not_Fortran_contiguou[] = "ndarray is not Fortran contiguous";
 static const char __pyx_k_numpy_core_umath_failed_to_impor[] = "numpy.core.umath failed to import";
-static const char __pyx_k_Format_string_allocated_too_shor_2[] = "Format string allocated too short.";
 static PyObject *__pyx_n_s_A;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor;
-static PyObject *__pyx_kp_u_Format_string_allocated_too_shor_2;
 static PyObject *__pyx_n_s_GPy_util_linalg_cython;
 static PyObject *__pyx_kp_s_GPy_util_linalg_cython_pyx;
 static PyObject *__pyx_n_s_ImportError;
 static PyObject *__pyx_n_s_L;
 static PyObject *__pyx_n_s_N;
-static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
-static PyObject *__pyx_n_s_RuntimeError;
-static PyObject *__pyx_n_s_ValueError;
 static PyObject *__pyx_n_s_c;
 static PyObject *__pyx_n_s_cholupdate;
 static PyObject *__pyx_n_s_cline_in_traceback;
@@ -1754,8 +1713,6 @@ static PyObject *__pyx_n_s_i;
 static PyObject *__pyx_n_s_j;
 static PyObject *__pyx_n_s_main;
 static PyObject *__pyx_n_s_name;
-static PyObject *__pyx_kp_u_ndarray_is_not_C_contiguous;
-static PyObject *__pyx_kp_u_ndarray_is_not_Fortran_contiguou;
 static PyObject *__pyx_kp_s_numpy_core_multiarray_failed_to;
 static PyObject *__pyx_kp_s_numpy_core_umath_failed_to_impor;
 static PyObject *__pyx_n_s_r;
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 static PyObject *__pyx_n_s_s;
 static PyObject *__pyx_n_s_symmetrify;
 static PyObject *__pyx_n_s_test;
-static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_n_s_upper;
 static PyObject *__pyx_n_s_x;
 static PyObject *__pyx_n_s_xrange;
 static PyObject *__pyx_pf_3GPy_4util_13linalg_cython_symmetrify(CYTHON_UNUSED PyObject *__pyx_self, PyArrayObject *__pyx_v_A, PyBoolObject *__pyx_v_upper); /* proto */
 static PyObject *__pyx_pf_3GPy_4util_13linalg_cython_2cholupdate(CYTHON_UNUSED PyObject *__pyx_self, PyArrayObject *__pyx_v_x, PyArrayObject *__pyx_v_L, int __pyx_v_N); /* proto */
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-static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static PyObject *__pyx_tuple_;
 static PyObject *__pyx_tuple__2;
 static PyObject *__pyx_tuple__3;
-static PyObject *__pyx_tuple__4;
 static PyObject *__pyx_tuple__5;
-static PyObject *__pyx_tuple__6;
-static PyObject *__pyx_tuple__7;
-static PyObject *__pyx_tuple__8;
-static PyObject *__pyx_tuple__10;
-static PyObject *__pyx_codeobj__9;
-static PyObject *__pyx_codeobj__11;
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+static PyObject *__pyx_codeobj__6;
 /* Late includes */
 
 /* "GPy/util/linalg_cython.pyx":9
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 static PyObject *__pyx_pw_3GPy_4util_13linalg_cython_1symmetrify(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyArrayObject *__pyx_v_A = 0;
   PyBoolObject *__pyx_v_upper = 0;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("symmetrify (wrapper)", 0);
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   Py_ssize_t __pyx_t_10;
   Py_ssize_t __pyx_t_11;
   Py_ssize_t __pyx_t_12;
-  Py_ssize_t __pyx_t_13;
-  Py_ssize_t __pyx_t_14;
-  Py_ssize_t __pyx_t_15;
-  Py_ssize_t __pyx_t_16;
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   __pyx_pybuffer_A.refcount = 0;
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  * 
  * @cython.boundscheck(False)
  */
-        __pyx_t_13 = __pyx_v_i;
-        __pyx_t_14 = __pyx_v_j;
-        __pyx_t_15 = __pyx_v_j;
-        __pyx_t_16 = __pyx_v_i;
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+        __pyx_t_10 = __pyx_v_i;
+        __pyx_t_9 = __pyx_v_j;
+        __pyx_t_12 = __pyx_v_j;
+        __pyx_t_11 = __pyx_v_i;
+        *__Pyx_BufPtrStrided2d(double *, __pyx_pybuffernd_A.rcbuffer->pybuffer.buf, __pyx_t_12, __pyx_pybuffernd_A.diminfo[0].strides, __pyx_t_11, __pyx_pybuffernd_A.diminfo[1].strides) = (*__Pyx_BufPtrStrided2d(double *, __pyx_pybuffernd_A.rcbuffer->pybuffer.buf, __pyx_t_10, __pyx_pybuffernd_A.diminfo[0].strides, __pyx_t_9, __pyx_pybuffernd_A.diminfo[1].strides));
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@@ -2050,6 +2001,9 @@ static PyObject *__pyx_pw_3GPy_4util_13linalg_cython_3cholupdate(PyObject *__pyx
   PyArrayObject *__pyx_v_x = 0;
   PyArrayObject *__pyx_v_L = 0;
   int __pyx_v_N;
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+  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
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   Py_ssize_t __pyx_t_8;
   Py_ssize_t __pyx_t_9;
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-  Py_ssize_t __pyx_t_28;
-  Py_ssize_t __pyx_t_29;
-  Py_ssize_t __pyx_t_30;
+  int __pyx_t_10;
+  int __pyx_t_11;
+  int __pyx_t_12;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
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-#ifdef CYTHON_NO_PYINIT_EXPORT
-#define __Pyx_PyMODINIT_FUNC PyObject *
+#ifdef __cplusplus
+#define __Pyx_PyMODINIT_FUNC extern "C" PyObject *
 #else
-#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
+#define __Pyx_PyMODINIT_FUNC PyObject *
 #endif
 #endif
 
@@ -5186,6 +3683,9 @@ static CYTHON_SMALL_CODE int __pyx_pymod_exec_linalg_cython(PyObject *__pyx_pyin
 #endif
 {
   PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
   __Pyx_RefNannyDeclarations
   #if CYTHON_PEP489_MULTI_PHASE_INIT
   if (__pyx_m) {
@@ -5253,10 +3753,9 @@ if (!__Pyx_RefNanny) {
   __pyx_d = PyModule_GetDict(__pyx_m); if (unlikely(!__pyx_d)) __PYX_ERR(0, 1, __pyx_L1_error)
   Py_INCREF(__pyx_d);
   __pyx_b = PyImport_AddModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_b)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
-  #if CYTHON_COMPILING_IN_PYPY
   Py_INCREF(__pyx_b);
-  #endif
+  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
+  Py_INCREF(__pyx_cython_runtime);
   if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
   /*--- Initialize various global constants etc. ---*/
   if (__Pyx_InitGlobals() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
@@ -5283,7 +3782,7 @@ if (!__Pyx_RefNanny) {
   (void)__Pyx_modinit_variable_export_code();
   (void)__Pyx_modinit_function_export_code();
   (void)__Pyx_modinit_type_init_code();
-  if (unlikely(__Pyx_modinit_type_import_code() != 0)) goto __pyx_L1_error;
+  if (unlikely(__Pyx_modinit_type_import_code() < 0)) __PYX_ERR(0, 1, __pyx_L1_error)
   (void)__Pyx_modinit_variable_import_code();
   (void)__Pyx_modinit_function_import_code();
   /*--- Execution code ---*/
@@ -5325,12 +3824,12 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_1) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../../../.conda/envs/bays-dev-py2/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
- *         raise ImportError("numpy.core.umath failed to import")
+  /* "../../.pyenv/versions/gpy391/lib/python3.9/site-packages/numpy/__init__.pxd":1016
  * 
- * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
- *     try:
- *         _import_umath()
+ * 
+ * cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) nogil:             # <<<<<<<<<<<<<<
+ *     """
+ *     returns the unit part of the dtype for a numpy datetime64 object.
  */
 
   /*--- Wrapped vars code ---*/
@@ -5465,7 +3964,7 @@ static int __Pyx_ParseOptionalKeywords(
         }
         name = first_kw_arg;
         #if PY_MAJOR_VERSION < 3
-        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+        if (likely(PyString_Check(key))) {
             while (*name) {
                 if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
                         && _PyString_Eq(**name, key)) {
@@ -5492,7 +3991,7 @@ static int __Pyx_ParseOptionalKeywords(
             while (*name) {
                 int cmp = (**name == key) ? 0 :
                 #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                 #endif
                     PyUnicode_Compare(**name, key);
                 if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -5508,7 +4007,7 @@ static int __Pyx_ParseOptionalKeywords(
                 while (argname != first_kw_arg) {
                     int cmp = (**argname == key) ? 0 :
                     #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                     #endif
                         PyUnicode_Compare(**argname, key);
                     if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -5612,7 +4111,7 @@ static int __Pyx_BufFmt_ParseNumber(const char** ts) {
       return -1;
     } else {
         count = *t++ - '0';
-        while (*t >= '0' && *t < '9') {
+        while (*t >= '0' && *t <= '9') {
             count *= 10;
             count += *t++ - '0';
         }
@@ -5633,6 +4132,7 @@ static void __Pyx_BufFmt_RaiseUnexpectedChar(char ch) {
 }
 static const char* __Pyx_BufFmt_DescribeTypeChar(char ch, int is_complex) {
   switch (ch) {
+    case '?': return "'bool'";
     case 'c': return "'char'";
     case 'b': return "'signed char'";
     case 'B': return "'unsigned char'";
@@ -5675,7 +4175,7 @@ static size_t __Pyx_BufFmt_TypeCharToStandardSize(char ch, int is_complex) {
 }
 static size_t __Pyx_BufFmt_TypeCharToNativeSize(char ch, int is_complex) {
   switch (ch) {
-    case 'c': case 'b': case 'B': case 's': case 'p': return 1;
+    case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
     case 'h': case 'H': return sizeof(short);
     case 'i': case 'I': return sizeof(int);
     case 'l': case 'L': return sizeof(long);
@@ -5759,7 +4259,7 @@ static char __Pyx_BufFmt_TypeCharToGroup(char ch, int is_complex) {
     case 'b': case 'h': case 'i':
     case 'l': case 'q': case 's': case 'p':
         return 'I';
-    case 'B': case 'H': case 'I': case 'L': case 'Q':
+    case '?': case 'B': case 'H': case 'I': case 'L': case 'Q':
         return 'U';
     case 'f': case 'd': case 'g':
         return (is_complex ? 'C' : 'R');
@@ -5903,9 +4403,7 @@ static PyObject *
 __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
 {
     const char *ts = *tsp;
-    int i = 0, number;
-    int ndim = ctx->head->field->type->ndim;
-;
+    int i = 0, number, ndim;
     ++ts;
     if (ctx->new_count != 1) {
         PyErr_SetString(PyExc_ValueError,
@@ -5913,6 +4411,7 @@ __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
         return NULL;
     }
     if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
+    ndim = ctx->head->field->type->ndim;
     while (*ts && *ts != ')') {
         switch (*ts) {
             case ' ': case '\f': case '\r': case '\n': case '\t': case '\v':  continue;
@@ -6038,12 +4537,12 @@ static const char* __Pyx_BufFmt_CheckString(__Pyx_BufFmt_Context* ctx, const cha
           return NULL;
         }
         CYTHON_FALLTHROUGH;
-      case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
+      case '?': case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
       case 'l': case 'L': case 'q': case 'Q':
       case 'f': case 'd': case 'g':
       case 'O': case 'p':
-        if (ctx->enc_type == *ts && got_Z == ctx->is_complex &&
-            ctx->enc_packmode == ctx->new_packmode) {
+        if ((ctx->enc_type == *ts) && (got_Z == ctx->is_complex) &&
+            (ctx->enc_packmode == ctx->new_packmode) && (!ctx->is_valid_array)) {
           ctx->enc_count += ctx->new_count;
           ctx->new_count = 1;
           got_Z = 0;
@@ -6112,7 +4611,7 @@ static int __Pyx__GetBufferAndValidate(
     __Pyx_BufFmt_Init(&ctx, stack, dtype);
     if (!__Pyx_BufFmt_CheckString(&ctx, buf->format)) goto fail;
   }
-  if (unlikely((unsigned)buf->itemsize != dtype->size)) {
+  if (unlikely((size_t)buf->itemsize != dtype->size)) {
     PyErr_Format(PyExc_ValueError,
       "Item size of buffer (%" CYTHON_FORMAT_SSIZE_T "d byte%s) does not match size of '%s' (%" CYTHON_FORMAT_SSIZE_T "d byte%s)",
       buf->itemsize, (buf->itemsize > 1) ? "s" : "",
@@ -6150,6 +4649,161 @@ static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject
 }
 #endif
 
+/* GetTopmostException */
+  #if CYTHON_USE_EXC_INFO_STACK
+static _PyErr_StackItem *
+__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
+{
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
+           exc_info->previous_item != NULL)
+    {
+        exc_info = exc_info->previous_item;
+    }
+    return exc_info;
+}
+#endif
+
+/* SaveResetException */
+  #if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    *type = exc_info->exc_type;
+    *value = exc_info->exc_value;
+    *tb = exc_info->exc_traceback;
+    #else
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    #endif
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+}
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = type;
+    exc_info->exc_value = value;
+    exc_info->exc_traceback = tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+}
+#endif
+
+/* PyErrExceptionMatches */
+  #if CYTHON_FAST_THREAD_STATE
+static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
+    PyObject *exc_type = tstate->curexc_type;
+    if (exc_type == err) return 1;
+    if (unlikely(!exc_type)) return 0;
+    if (unlikely(PyTuple_Check(err)))
+        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
+    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
+}
+#endif
+
+/* GetException */
+  #if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+#endif
+{
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
+#endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
+#endif
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
+    }
+    #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if CYTHON_USE_EXC_INFO_STACK
+    {
+        _PyErr_StackItem *exc_info = tstate->exc_info;
+        tmp_type = exc_info->exc_type;
+        tmp_value = exc_info->exc_value;
+        tmp_tb = exc_info->exc_traceback;
+        exc_info->exc_type = local_type;
+        exc_info->exc_value = local_value;
+        exc_info->exc_traceback = local_tb;
+    }
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
+
 /* PyObjectCall */
   #if CYTHON_COMPILING_IN_CPYTHON
 static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
@@ -6329,418 +4983,6 @@ bad:
 }
 #endif
 
-/* PyCFunctionFastCall */
-  #if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
-    PyCFunctionObject *func = (PyCFunctionObject*)func_obj;
-    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
-    PyObject *self = PyCFunction_GET_SELF(func);
-    int flags = PyCFunction_GET_FLAGS(func);
-    assert(PyCFunction_Check(func));
-    assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)));
-    assert(nargs >= 0);
-    assert(nargs == 0 || args != NULL);
-    /* _PyCFunction_FastCallDict() must not be called with an exception set,
-       because it may clear it (directly or indirectly) and so the
-       caller loses its exception */
-    assert(!PyErr_Occurred());
-    if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) {
-        return (*((__Pyx_PyCFunctionFastWithKeywords)(void*)meth)) (self, args, nargs, NULL);
-    } else {
-        return (*((__Pyx_PyCFunctionFast)(void*)meth)) (self, args, nargs);
-    }
-}
-#endif
-
-/* PyFunctionFastCall */
-  #if CYTHON_FAST_PYCALL
-static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
-                                               PyObject *globals) {
-    PyFrameObject *f;
-    PyThreadState *tstate = __Pyx_PyThreadState_Current;
-    PyObject **fastlocals;
-    Py_ssize_t i;
-    PyObject *result;
-    assert(globals != NULL);
-    /* XXX Perhaps we should create a specialized
-       PyFrame_New() that doesn't take locals, but does
-       take builtins without sanity checking them.
-       */
-    assert(tstate != NULL);
-    f = PyFrame_New(tstate, co, globals, NULL);
-    if (f == NULL) {
-        return NULL;
-    }
-    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
-    for (i = 0; i < na; i++) {
-        Py_INCREF(*args);
-        fastlocals[i] = *args++;
-    }
-    result = PyEval_EvalFrameEx(f,0);
-    ++tstate->recursion_depth;
-    Py_DECREF(f);
-    --tstate->recursion_depth;
-    return result;
-}
-#if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
-    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
-    PyObject *globals = PyFunction_GET_GLOBALS(func);
-    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
-    PyObject *closure;
-#if PY_MAJOR_VERSION >= 3
-    PyObject *kwdefs;
-#endif
-    PyObject *kwtuple, **k;
-    PyObject **d;
-    Py_ssize_t nd;
-    Py_ssize_t nk;
-    PyObject *result;
-    assert(kwargs == NULL || PyDict_Check(kwargs));
-    nk = kwargs ? PyDict_Size(kwargs) : 0;
-    if (Py_EnterRecursiveCall((char*)" while calling a Python object")) {
-        return NULL;
-    }
-    if (
-#if PY_MAJOR_VERSION >= 3
-            co->co_kwonlyargcount == 0 &&
-#endif
-            likely(kwargs == NULL || nk == 0) &&
-            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
-        if (argdefs == NULL && co->co_argcount == nargs) {
-            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
-            goto done;
-        }
-        else if (nargs == 0 && argdefs != NULL
-                 && co->co_argcount == Py_SIZE(argdefs)) {
-            /* function called with no arguments, but all parameters have
-               a default value: use default values as arguments .*/
-            args = &PyTuple_GET_ITEM(argdefs, 0);
-            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
-            goto done;
-        }
-    }
-    if (kwargs != NULL) {
-        Py_ssize_t pos, i;
-        kwtuple = PyTuple_New(2 * nk);
-        if (kwtuple == NULL) {
-            result = NULL;
-            goto done;
-        }
-        k = &PyTuple_GET_ITEM(kwtuple, 0);
-        pos = i = 0;
-        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
-            Py_INCREF(k[i]);
-            Py_INCREF(k[i+1]);
-            i += 2;
-        }
-        nk = i / 2;
-    }
-    else {
-        kwtuple = NULL;
-        k = NULL;
-    }
-    closure = PyFunction_GET_CLOSURE(func);
-#if PY_MAJOR_VERSION >= 3
-    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
-#endif
-    if (argdefs != NULL) {
-        d = &PyTuple_GET_ITEM(argdefs, 0);
-        nd = Py_SIZE(argdefs);
-    }
-    else {
-        d = NULL;
-        nd = 0;
-    }
-#if PY_MAJOR_VERSION >= 3
-    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, nargs,
-                               k, (int)nk,
-                               d, (int)nd, kwdefs, closure);
-#else
-    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, nargs,
-                               k, (int)nk,
-                               d, (int)nd, closure);
-#endif
-    Py_XDECREF(kwtuple);
-done:
-    Py_LeaveRecursiveCall();
-    return result;
-}
-#endif
-#endif
-
-/* PyObjectCallMethO */
-  #if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
-    PyObject *self, *result;
-    PyCFunction cfunc;
-    cfunc = PyCFunction_GET_FUNCTION(func);
-    self = PyCFunction_GET_SELF(func);
-    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
-        return NULL;
-    result = cfunc(self, arg);
-    Py_LeaveRecursiveCall();
-    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
-        PyErr_SetString(
-            PyExc_SystemError,
-            "NULL result without error in PyObject_Call");
-    }
-    return result;
-}
-#endif
-
-/* PyObjectCallOneArg */
-  #if CYTHON_COMPILING_IN_CPYTHON
-static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-    PyObject *result;
-    PyObject *args = PyTuple_New(1);
-    if (unlikely(!args)) return NULL;
-    Py_INCREF(arg);
-    PyTuple_SET_ITEM(args, 0, arg);
-    result = __Pyx_PyObject_Call(func, args, NULL);
-    Py_DECREF(args);
-    return result;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-#if CYTHON_FAST_PYCALL
-    if (PyFunction_Check(func)) {
-        return __Pyx_PyFunction_FastCall(func, &arg, 1);
-    }
-#endif
-    if (likely(PyCFunction_Check(func))) {
-        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
-            return __Pyx_PyObject_CallMethO(func, arg);
-#if CYTHON_FAST_PYCCALL
-        } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) {
-            return __Pyx_PyCFunction_FastCall(func, &arg, 1);
-#endif
-        }
-    }
-    return __Pyx__PyObject_CallOneArg(func, arg);
-}
-#else
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-    PyObject *result;
-    PyObject *args = PyTuple_Pack(1, arg);
-    if (unlikely(!args)) return NULL;
-    result = __Pyx_PyObject_Call(func, args, NULL);
-    Py_DECREF(args);
-    return result;
-}
-#endif
-
-/* DictGetItem */
-  #if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
-static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key) {
-    PyObject *value;
-    value = PyDict_GetItemWithError(d, key);
-    if (unlikely(!value)) {
-        if (!PyErr_Occurred()) {
-            if (unlikely(PyTuple_Check(key))) {
-                PyObject* args = PyTuple_Pack(1, key);
-                if (likely(args)) {
-                    PyErr_SetObject(PyExc_KeyError, args);
-                    Py_DECREF(args);
-                }
-            } else {
-                PyErr_SetObject(PyExc_KeyError, key);
-            }
-        }
-        return NULL;
-    }
-    Py_INCREF(value);
-    return value;
-}
-#endif
-
-/* RaiseTooManyValuesToUnpack */
-  static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
-    PyErr_Format(PyExc_ValueError,
-                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
-}
-
-/* RaiseNeedMoreValuesToUnpack */
-  static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
-    PyErr_Format(PyExc_ValueError,
-                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
-                 index, (index == 1) ? "" : "s");
-}
-
-/* RaiseNoneIterError */
-  static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
-}
-
-/* ExtTypeTest */
-  static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
-    }
-    if (likely(__Pyx_TypeCheck(obj, type)))
-        return 1;
-    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
-                 Py_TYPE(obj)->tp_name, type->tp_name);
-    return 0;
-}
-
-/* GetTopmostException */
-  #if CYTHON_USE_EXC_INFO_STACK
-static _PyErr_StackItem *
-__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
-{
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
-           exc_info->previous_item != NULL)
-    {
-        exc_info = exc_info->previous_item;
-    }
-    return exc_info;
-}
-#endif
-
-/* SaveResetException */
-  #if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
-    *type = exc_info->exc_type;
-    *value = exc_info->exc_value;
-    *tb = exc_info->exc_traceback;
-    #else
-    *type = tstate->exc_type;
-    *value = tstate->exc_value;
-    *tb = tstate->exc_traceback;
-    #endif
-    Py_XINCREF(*type);
-    Py_XINCREF(*value);
-    Py_XINCREF(*tb);
-}
-static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    tmp_type = exc_info->exc_type;
-    tmp_value = exc_info->exc_value;
-    tmp_tb = exc_info->exc_traceback;
-    exc_info->exc_type = type;
-    exc_info->exc_value = value;
-    exc_info->exc_traceback = tb;
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = type;
-    tstate->exc_value = value;
-    tstate->exc_traceback = tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-}
-#endif
-
-/* PyErrExceptionMatches */
-  #if CYTHON_FAST_THREAD_STATE
-static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    n = PyTuple_GET_SIZE(tuple);
-#if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
-    }
-#endif
-    for (i=0; i<n; i++) {
-        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
-    }
-    return 0;
-}
-static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
-    PyObject *exc_type = tstate->curexc_type;
-    if (exc_type == err) return 1;
-    if (unlikely(!exc_type)) return 0;
-    if (unlikely(PyTuple_Check(err)))
-        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
-    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
-}
-#endif
-
-/* GetException */
-  #if CYTHON_FAST_THREAD_STATE
-static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
-#else
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
-#endif
-{
-    PyObject *local_type, *local_value, *local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    local_type = tstate->curexc_type;
-    local_value = tstate->curexc_value;
-    local_tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-#else
-    PyErr_Fetch(&local_type, &local_value, &local_tb);
-#endif
-    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-#if CYTHON_FAST_THREAD_STATE
-    if (unlikely(tstate->curexc_type))
-#else
-    if (unlikely(PyErr_Occurred()))
-#endif
-        goto bad;
-    #if PY_MAJOR_VERSION >= 3
-    if (local_tb) {
-        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
-            goto bad;
-    }
-    #endif
-    Py_XINCREF(local_tb);
-    Py_XINCREF(local_type);
-    Py_XINCREF(local_value);
-    *type = local_type;
-    *value = local_value;
-    *tb = local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    #if CYTHON_USE_EXC_INFO_STACK
-    {
-        _PyErr_StackItem *exc_info = tstate->exc_info;
-        tmp_type = exc_info->exc_type;
-        tmp_value = exc_info->exc_value;
-        tmp_tb = exc_info->exc_traceback;
-        exc_info->exc_type = local_type;
-        exc_info->exc_value = local_value;
-        exc_info->exc_traceback = local_tb;
-    }
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = local_type;
-    tstate->exc_value = local_value;
-    tstate->exc_traceback = local_tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-#else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
-#endif
-    return 0;
-bad:
-    *type = 0;
-    *value = 0;
-    *tb = 0;
-    Py_XDECREF(local_type);
-    Py_XDECREF(local_value);
-    Py_XDECREF(local_tb);
-    return -1;
-}
-
 /* TypeImport */
   #ifndef __PYX_HAVE_RT_ImportType
 #define __PYX_HAVE_RT_ImportType
@@ -6802,9 +5044,35 @@ bad:
 }
 #endif
 
+/* PyDictVersioning */
+  #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
+    PyObject **dictptr = NULL;
+    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
+    if (offset) {
+#if CYTHON_COMPILING_IN_CPYTHON
+        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
+#else
+        dictptr = _PyObject_GetDictPtr(obj);
+#endif
+    }
+    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
+}
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
+        return 0;
+    return obj_dict_version == __Pyx_get_object_dict_version(obj);
+}
+#endif
+
 /* CLineInTraceback */
   #ifndef CYTHON_CLINE_IN_TRACEBACK
-static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
+static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int c_line) {
     PyObject *use_cline;
     PyObject *ptype, *pvalue, *ptraceback;
 #if CYTHON_COMPILING_IN_CPYTHON
@@ -6908,7 +5176,7 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
     if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
         int new_max = __pyx_code_cache.max_count + 64;
         entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
-            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+            __pyx_code_cache.entries, ((size_t)new_max) * sizeof(__Pyx_CodeObjectCacheEntry));
         if (unlikely(!entries)) {
             return;
         }
@@ -7012,7 +5280,6 @@ bad:
 #if PY_MAJOR_VERSION < 3
 static int __Pyx_GetBuffer(PyObject *obj, Py_buffer *view, int flags) {
     if (PyObject_CheckBuffer(obj)) return PyObject_GetBuffer(obj, view, flags);
-        if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) return __pyx_pw_5numpy_7ndarray_1__getbuffer__(obj, view, flags);
     PyErr_Format(PyExc_TypeError, "'%.200s' does not have the buffer interface", Py_TYPE(obj)->tp_name);
     return -1;
 }
@@ -7024,7 +5291,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
         return;
     }
     if ((0)) {}
-        else if (__Pyx_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) __pyx_pw_5numpy_7ndarray_3__releasebuffer__(obj, view);
     view->obj = NULL;
     Py_DECREF(obj);
 }
@@ -7137,13 +5403,13 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                 return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 float r = b.imag / b.real;
-                float s = 1.0 / (b.real + b.imag * r);
+                float s = (float)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_float_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             float r = b.real / b.imag;
-            float s = 1.0 / (b.imag + b.real * r);
+            float s = (float)(1.0) / (b.imag + b.real * r);
             return __pyx_t_float_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -7201,7 +5467,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_float(a, a);
                         return __Pyx_c_prod_float(a, a);
                     case 3:
                         z = __Pyx_c_prod_float(a, a);
@@ -7223,7 +5488,7 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2f(0, -1);
+                    theta = atan2f(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_float(a);
@@ -7292,13 +5557,13 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                 return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.imag);
             } else {
                 double r = b.imag / b.real;
-                double s = 1.0 / (b.real + b.imag * r);
+                double s = (double)(1.0) / (b.real + b.imag * r);
                 return __pyx_t_double_complex_from_parts(
                     (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
             }
         } else {
             double r = b.real / b.imag;
-            double s = 1.0 / (b.imag + b.real * r);
+            double s = (double)(1.0) / (b.imag + b.real * r);
             return __pyx_t_double_complex_from_parts(
                 (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
         }
@@ -7356,7 +5621,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     case 1:
                         return a;
                     case 2:
-                        z = __Pyx_c_prod_double(a, a);
                         return __Pyx_c_prod_double(a, a);
                     case 3:
                         z = __Pyx_c_prod_double(a, a);
@@ -7378,7 +5642,7 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2(0, -1);
+                    theta = atan2(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_double(a);
@@ -7394,37 +5658,6 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
     #endif
 #endif
 
-/* CIntToPy */
-  static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value) {
-    const enum NPY_TYPES neg_one = (enum NPY_TYPES) ((enum NPY_TYPES) 0 - (enum NPY_TYPES) 1), const_zero = (enum NPY_TYPES) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(enum NPY_TYPES) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(enum NPY_TYPES) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(enum NPY_TYPES) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(enum NPY_TYPES),
-                                     little, !is_unsigned);
-    }
-}
-
 /* CIntFromPy */
   static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
diff --git a/GPy/util/mocap.py b/GPy/util/mocap.py
index e405d3a1..8c522083 100644
--- a/GPy/util/mocap.py
+++ b/GPy/util/mocap.py
@@ -163,7 +163,7 @@ def rotation_matrix(xangle, yangle, zangle, order='zxy', degrees=False):
 # Motion capture data routines.
 class skeleton(tree):
     def __init__(self):
-        tree.__init__(self)
+        super(skeleton, self).__init__()
 
     def connection_matrix(self):
         connection = np.zeros((len(self.vertices), len(self.vertices)), dtype=bool)
@@ -197,13 +197,13 @@ class skeleton(tree):
 
 # class bvh_skeleton(skeleton):
 #     def __init__(self):
-#         skeleton.__init__(self)
+#         super(bvh_skeleton, self).__init__()
 
 #     def to_xyz(self, channels):
         
 class acclaim_skeleton(skeleton):
     def __init__(self, file_name=None):
-        skeleton.__init__(self)
+        super(acclaim_skeleton, self).__init__()
         self.documentation = []
         self.angle = 'deg'
         self.length = 1.0
diff --git a/README.md b/README.md
index 0a00823f..1e609cb6 100644
--- a/README.md
+++ b/README.md
@@ -5,11 +5,17 @@ The Gaussian processes framework in Python.
 * GPy [homepage](http://sheffieldml.github.io/GPy/)
 * Tutorial [notebooks](http://nbviewer.ipython.org/github/SheffieldML/notebook/blob/master/GPy/index.ipynb)
 * User [mailing-list](https://lists.shef.ac.uk/sympa/subscribe/gpy-users)
-* Developer [documentation](http://gpy.readthedocs.io/)
+* Developer [documentation](http://gpy.readthedocs.io/) [documentation (devel branch)](https://gpy.readthedocs.io/en/devel/)
 * Travis-CI [unit-tests](https://travis-ci.org/SheffieldML/GPy)
 * [![licence](https://img.shields.io/badge/licence-BSD-blue.svg)](http://opensource.org/licenses/BSD-3-Clause)
+  [![Research software impact](http://depsy.org/api/package/pypi/GPy/badge.svg)](http://depsy.org/package/python/GPy)
 
-[![deploystat](https://travis-ci.org/SheffieldML/GPy.svg?branch=deploy)](https://travis-ci.org/SheffieldML/GPy) [![appveyor](https://ci.appveyor.com/api/projects/status/662o6tha09m2jix3/branch/deploy?svg=true)](https://ci.appveyor.com/project/mzwiessele/gpy/branch/deploy) [![coverallsdevel](https://coveralls.io/repos/github/SheffieldML/GPy/badge.svg?branch=devel)](https://coveralls.io/github/SheffieldML/GPy?branch=devel) [![covdevel](http://codecov.io/github/SheffieldML/GPy/coverage.svg?branch=devel)](http://codecov.io/github/SheffieldML/GPy?branch=devel) [![Research software impact](http://depsy.org/api/package/pypi/GPy/badge.svg)](http://depsy.org/package/python/GPy) [![Code Health](https://landscape.io/github/SheffieldML/GPy/devel/landscape.svg?style=flat)](https://landscape.io/github/SheffieldML/GPy/devel)
+## Status
+
+| Branch | travis-ci.org | ci.appveyor.com | coveralls.io | codecov.io |
+| --- | --- | --- | --- | --- |
+| Default branch (`devel`) | [![travis-devel](https://travis-ci.org/SheffieldML/GPy.svg?branch=devel)](https://travis-ci.org/SheffieldML/GPy/branches) | [![appveyor-devel](https://ci.appveyor.com/api/projects/status/662o6tha09m2jix3/branch/devel?svg=true)](https://ci.appveyor.com/project/mzwiessele/gpy/branch/devel) | [![coveralls-devel](https://coveralls.io/repos/github/SheffieldML/GPy/badge.svg?branch=devel)](https://coveralls.io/github/SheffieldML/GPy?branch=devel) | [![codecov-devel](http://codecov.io/github/SheffieldML/GPy/coverage.svg?branch=devel)](http://codecov.io/github/SheffieldML/GPy?branch=devel) |
+| Deployment branch (`deploy`) | [![travis-deploy](https://travis-ci.org/SheffieldML/GPy.svg?branch=deploy)](https://travis-ci.org/SheffieldML/GPy/branches) | [![appveyor-deploy](https://ci.appveyor.com/api/projects/status/662o6tha09m2jix3/branch/deploy?svg=true)](https://ci.appveyor.com/project/mzwiessele/gpy/branch/deploy) | [![coveralls-deploy](https://coveralls.io/repos/github/SheffieldML/GPy/badge.svg?branch=deploy)](https://coveralls.io/github/SheffieldML/GPy?branch=deploy) | [![codecov-deploy](http://codecov.io/github/SheffieldML/GPy/coverage.svg?branch=deploy)](http://codecov.io/github/SheffieldML/GPy?branch=deploy) |
 
 ## What's new:
 
@@ -23,15 +29,16 @@ We welcome any contributions to GPy, after all it is an open source project. We
 
 For an in depth description of pull requests, please visit https://help.github.com/articles/using-pull-requests/ .
 
-### Steps to a successfull contribution:
+### Steps to a successful contribution:
 
  1. Fork GPy: https://help.github.com/articles/fork-a-repo/
  2. Make your changes to the source in your fork.
  3. Make sure the [guidelines](#gl) are met.
- 4. Set up tests to test your code. We are using unttests in the testing subfolder of GPy. There is a good chance that there is already a framework set up to test your new model in model_tests.py or kernel in kernel_tests.py. have a look at the source and you might be able to just add your model (or kernel or others) as an additional test in the appropriate file. There is more frameworks for testing the other bits and pieces, just head over to the testing folder and have a look.
+ 4. Set up tests to test your code. We are using unittests in the testing subfolder of GPy. There is a good chance 
+    that there is already a framework set up to test your new model in model_tests.py or kernel in kernel_tests.py. have a look at the source and you might be able to just add your model (or kernel or others) as an additional test in the appropriate file. There is more frameworks for testing the other bits and pieces, just head over to the testing folder and have a look.
  5. Create a pull request to the devel branch in GPy, see above.
  6. The tests will be running on your pull request. In the comments section we will be able to discuss the changes and help you with any problems. Let us know if there are any in the comments, so we can help.
- 7. The pull request gets accepted and your awsome new feature will be in the next GPy release :)
+ 7. The pull request gets accepted and your awesome new feature will be in the next GPy release :)
 
 For any further questions/suggestions head over to the issues section in GPy.
 
@@ -45,11 +52,7 @@ For any further questions/suggestions head over to the issues section in GPy.
 
 ## Support and questions to the community
 
-We have set up a mailing list for any questions you might have or problems you feel others have encountered:
-
-gpy-users@lists.shef.ac.uk
-
-Feel free to join the discussions on the issues section, too.
+Ask questions using the issues section.
 
 ## Updated Structure
 
@@ -76,7 +79,7 @@ If that is the case, it is best to clean the repo and reinstall.
 [<img src="https://upload.wikimedia.org/wikipedia/commons/8/8e/OS_X-Logo.svg" height=40px>](http://www.apple.com/osx/)
 [<img src="https://upload.wikimedia.org/wikipedia/commons/3/35/Tux.svg" height=40px>](https://en.wikipedia.org/wiki/List_of_Linux_distributions)
 
-Python 2.7, 3.5 and higher
+Python 3.5 and higher
 
 ## Citation
 
@@ -93,7 +96,7 @@ We like to pronounce it 'g-pie'.
 
 ## Getting started: installing with pip
 
-We are now requiring the newest version (0.16) of
+We are requiring a recent version (1.3.0 or later) of
 [scipy](http://www.scipy.org/) and thus, we strongly recommend using
 the  [anaconda python distribution](http://continuum.io/downloads).
 With anaconda you can install GPy by the following:
@@ -111,7 +114,7 @@ And finally,
 
     pip install gpy
 
-We've also had luck with [enthought](http://www.enthought.com). Install scipy 0.16 (or later)
+We've also had luck with [enthought](http://www.enthought.com). Install scipy 1.3.0 (or later)
  and then pip install GPy:
 
     pip install gpy
@@ -222,6 +225,13 @@ The documentation can be compiled as follows:
     sphinx-apidoc -o source/ ../GPy/
     make html
 
+alternatively:
+
+```{shell}
+cd doc
+sphinx-build -b html -d build/doctrees -D graphviz_dot='<path to dot>' source build/html
+```
+
 The HTML files are then stored in doc/build/html
 
 ### Commit new patch to devel
diff --git a/appveyor.yml b/appveyor.yml
index 14a31c95..f5faee5c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,16 +3,18 @@ environment:
     secure: 8/ZjXFwtd1S7ixd7PJOpptupKKEDhm2da/q3unabJ00=
   COVERALLS_REPO_TOKEN:
     secure: d3Luic/ESkGaWnZrvWZTKrzO+xaVwJWaRCEP0F+K/9DQGPSRZsJ/Du5g3s4XF+tS
-  gpy_version: 1.9.8
+  gpy_version: 1.9.9
   matrix:
-    - PYTHON_VERSION: 2.7
-      MINICONDA: C:\Miniconda-x64
     - PYTHON_VERSION: 3.5
       MINICONDA: C:\Miniconda35-x64
     - PYTHON_VERSION: 3.6
       MINICONDA: C:\Miniconda36-x64
     - PYTHON_VERSION: 3.7
       MINICONDA: C:\Miniconda36-x64
+    - PYTHON_VERSION: 3.8
+      MINICONDA: C:\Miniconda36-x64
+    - PYTHON_VERSION: 3.9
+      MINICONDA: C:\Miniconda36-x64
 
 #configuration:
 #  - Debug
@@ -51,7 +53,7 @@ test_script:
 
 after_test:
   # This step builds your wheels.
-  - "python setup.py bdist_wheel bdist_wininst"
+  - "python setup.py bdist_wheel"
   - codecov
 
 artifacts:
diff --git a/doc/source/conf.py b/doc/source/conf.py
index b968fe48..5fe9be77 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -64,7 +64,7 @@ if on_rtd:
     print(out)
 
     #Lets regenerate our rst files from the source, -P adds private modules (i.e kern._src)
-    proc = subprocess.Popen("sphinx-apidoc -P -f -o . ../../GPy", stdout=subprocess.PIPE, shell=True)
+    proc = subprocess.Popen("sphinx-apidoc -M -P -f -o . ../../GPy", stdout=subprocess.PIPE, shell=True)
     (out, err) = proc.communicate()
     print("$ Apidoc:")
     print(out)
@@ -83,8 +83,13 @@ extensions = [
     #'sphinx.ext.coverage',
     'sphinx.ext.mathjax',
     'sphinx.ext.viewcode',
+    'sphinx.ext.graphviz',
+    'sphinx.ext.inheritance_diagram',
 ]
 
+#---sphinx.ext.inheritance_diagram config
+inheritance_graph_attrs = dict(rankdir="LR", dpi=1200)
+
 #----- Autodoc
 #import sys
 #try:
@@ -134,7 +139,7 @@ master_doc = 'index'
 project = u'GPy'
 #author = u'`Humans <https://github.com/SheffieldML/GPy/graphs/contributors>`_'
 author = 'GPy Authors, see https://github.com/SheffieldML/GPy/graphs/contributors'
-copyright = u'2015, '+author
+copyright = u'2020, '+author
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -245,6 +250,10 @@ html_theme = 'sphinx_rtd_theme'
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
 
+html_css_files = [
+    'wide.css',
+]
+
 # Add any extra paths that contain custom files (such as robots.txt or
 # .htaccess) here, relative to this directory. These files are copied
 # directly to the root of the documentation.
diff --git a/doc/source/index.rst b/doc/source/index.rst
index 0994536d..707afd88 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -1,48 +1,90 @@
-.. GPy documentation master file, created by
-   sphinx-quickstart on Fri Sep 18 18:16:28 2015.
-   You can adapt this file completely to your liking, but it should at least
-   contain the root `toctree` directive.
+GPy - A Gaussian Process (GP) framework in Python
+=================================================
 
-Welcome to GPy's documentation!
-===============================
+Introduction
+------------
 
-`GPy <http://sheffieldml.github.io/GPy/>`_ is a Gaussian Process (GP) framework written in Python, from the Sheffield machine learning group.
+`GPy <http://sheffieldml.github.io/GPy/>`_ is a Gaussian Process (GP) framework written in Python, from the Sheffield machine learning group. It includes support for basic GP regression, multiple output GPs (using coregionalization), various noise models, sparse GPs, non-parametric regression and latent variables.
 
 The `GPy homepage <http://sheffieldml.github.io/GPy/>`_ contains tutorials for users and further information on the project, including installation instructions.
-This documentation is mostly aimed at developers interacting closely with the code-base.
+
+The documentation hosted here is mostly aimed at developers interacting closely with the code-base.
+
+Source Code
+-----------
 
 The code can be found on our `Github project page <https://github.com/SheffieldML/GPy>`_. It is open source and provided under the BSD license.
 
-For developers:
+Installation
+------------
 
-- `Writing new models <tuto_creating_new_models.html>`_
-- `Writing new kernels <tuto_creating_new_kernels.html>`_
-- `Write a new plotting routine using gpy_plot <tuto_plotting.html>`_
-- `Parameterization handles <tuto_parameterized.html>`_
+Installation instructions can currently be found on our `Github project page <https://github.com/SheffieldML/GPy>`_.
 
-Contents:
+Tutorials
+---------
+
+Several tutorials have been developed in the form of `Jupyter Notebooks <https://nbviewer.jupyter.org/github/SheffieldML/notebook/blob/master/GPy/index.ipynb>`_. 
+
+Architecture
+------------
+
+GPy is a big, powerful package, with many features. The concept of how to use GPy in general terms is roughly as follows. A model (:py:class:`GPy.models`) is created - this is at the heart of GPy from a user perspective. A kernel (:py:class:`GPy.kern`), data and, usually, a representation of noise are assigned to the model. Specific models require, or can make use of, additional information. The kernel and noise are controlled by hyperparameters - calling the optimize (:py:class:`GPy.core.gp.GP.optimize`) method against the model invokes an iterative process which seeks optimal hyperparameter values. The model object can be used to make plots and predictions (:py:class:`GPy.core.gp.GP.predict`).
+
+.. graphviz::
+
+   digraph GPy_Arch {
+      
+      rankdir=LR
+      node[shape="rectangle" style="rounded,filled" fontname="Arial"]
+      edge [color="#006699" len=2.5]
+
+      Data->Model
+      Hyperparameters->Kernel
+      Hyperparameters->Noise
+      Kernel->Model
+      Noise->Model
+      
+      Model->Optimize
+      Optimize->Hyperparameters
+      
+      Model->Predict
+      Model->Plot
+      
+      Optimize [shape="ellipse"]
+      Predict [shape="ellipse"]
+      Plot [shape="ellipse"]
+      
+      subgraph cluster_0 {
+         Data
+         Kernel
+         Noise
+      }
+
+   }
 
 .. toctree::
    :maxdepth: 1
+   :caption: For developers
 
+   tuto_creating_new_models
+   tuto_creating_new_kernels
+   tuto_plotting
+   tuto_parameterized
+
+.. toctree::
+   :maxdepth: 1
+   :caption: API Documentation
+
+   GPy.core
+   GPy.core.parameterization
    GPy.models
    GPy.kern
    GPy.likelihoods
    GPy.mappings
    GPy.examples
    GPy.util
-   GPy.plotting.gpy_plot
-   GPy.plotting.matplot_dep
-   GPy.core
-   GPy.core.parameterization
+   GPy.plotting
    GPy.inference.optimization
    GPy.inference.latent_function_inference
    GPy.inference.mcmc
-	      
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`
 
diff --git a/doc/source/tuto_creating_new_kernels.rst b/doc/source/tuto_creating_new_kernels.rst
index 9db6adc4..ec46aedc 100644
--- a/doc/source/tuto_creating_new_kernels.rst
+++ b/doc/source/tuto_creating_new_kernels.rst
@@ -53,13 +53,15 @@ your code. The parameters have to be added by calling
 :py:class:`~GPy.core.parameterization.param.Param` objects as
 arguments::
 
+    from .core.parameterization import Param
+
     def __init__(self,input_dim,variance=1.,lengthscale=1.,power=1.,active_dims=None):
         super(RationalQuadratic, self).__init__(input_dim, active_dims, 'rat_quad')
 	assert input_dim == 1, "For this kernel we assume input_dim=1"
         self.variance = Param('variance', variance)
         self.lengthscale = Param('lengtscale', lengthscale)
         self.power = Param('power', power)
-	self.add_parameters(self.variance, self.lengthscale, self.power)
+	self.link_parameters(self.variance, self.lengthscale, self.power)
 
 From now on you can use the parameters ``self.variance,
 self.lengthscale, self.power`` as normal numpy ``array-like`` s in your
@@ -71,13 +73,13 @@ automatically.
 
 The implementation of this function is optional.
 
-This functions deals as a callback for each optimization iteration. If
-one optimization step was successfull and the parameters (added by
+This functions is called as a callback upon each successful change to the parameters. If
+one optimization step was successfull and the parameters (linked by
 :py:func:`~GPy.core.parameterization.parameterized.Parameterized.link_parameters`
-``(*parameters)``) this callback function will be called to be able to
-update any precomputations for the kernel. Do not implement the
-gradient updates here, as those are being done by the model enclosing
-the kernel::
+``(*parameters)``) are changed, this callback function will be called. This callback may be used to
+update precomputations for the kernel. Do not implement the
+gradient updates here, as gradient updates are performed by the model enclosing
+the kernel. In this example, we issue a no-op::
 
     def parameters_changed(self):
         # nothing todo here
@@ -90,8 +92,9 @@ the kernel::
 The implementation of this function in mandatory.
 
 This function is used to compute the covariance matrix associated with
-the inputs X, X2 (np.arrays with arbitrary number of line (say
-:math:`n_1`, :math:`n_2`) and ``self.input_dim`` columns). ::
+the inputs X, X2 (np.arrays with arbitrary number of lines,
+:math:`n_1`, :math:`n_2`, corresponding to the number of samples over which to calculate covariance)
+and ``self.input_dim`` columns. ::
 
     def K(self,X,X2):
         if X2 is None: X2 = X
@@ -171,16 +174,24 @@ is set to each ``param``. ::
 This function is required for GPLVM, BGPLVM, sparse models and uncertain inputs.
 
 Computes the derivative of the likelihood with respect to the inputs
-``X`` (a :math:`n \times q` np.array). The result is returned by the
-function which is a :math:`n \times q` np.array. ::
+``X`` (a :math:`n \times q` np.array), that is, it calculates the quantity:
+
+.. math::
+
+   \frac{\partial L}{\partial K} \frac{\partial K}{\partial X}
+
+The partial derivative matrix is, in this case, comes out as an :math:`n \times q` np.array.  ::
 
     def gradients_X(self,dL_dK,X,X2):
-        """derivative of the covariance matrix with respect to X."""
+        """derivative of the likelihood with respect to X, calculated using dL_dK*dK_dX"""
         if X2 is None: X2 = X
         dist2 = np.square((X-X2.T)/self.lengthscale)
 
-        dX = -self.variance*self.power * (X-X2.T)/self.lengthscale**2 *  (1 + dist2/2./self.lengthscale)**(-self.power-1)
-        return np.sum(dL_dK*dX,1)[:,None]
+        dK_dX = -self.variance*self.power * (X-X2.T)/self.lengthscale**2 *  (1 + dist2/2./self.lengthscale)**(-self.power-1)
+        return np.sum(dL_dK*dK_dX,1)[:,None]
+
+Were the number of parameters to be larger than 1 or the number of dimensions likewise any larger
+than 1, the calculated partial derivitive would be a 3- or 4-tensor.
 
 :py:func:`~GPy.kern.src.kern.Kern.gradients_X_diag` ``(self,dL_dKdiag,X)``
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/setup.cfg b/setup.cfg
index 081fd450..913a7c55 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.9.8
+current_version = 1.9.9
 tag = True
 commit = True
 
diff --git a/setup.py b/setup.py
index 523c4433..73bfc035 100644
--- a/setup.py
+++ b/setup.py
@@ -117,6 +117,11 @@ try:
 except ModuleNotFoundError:
     ext_mods = []
 
+install_requirements = ['numpy>=1.7', 'six', 'paramz>=0.9.0', 'cython>=0.29']
+if sys.version_info < (3, 6):
+    install_requirements += ['scipy>=1.3.0,<1.5.0']
+else:
+    install_requirements += ['scipy>=1.3.0']
 
 setup(name = 'GPy',
       version = __version__,
@@ -164,7 +169,7 @@ setup(name = 'GPy',
       py_modules = ['GPy.__init__'],
       test_suite = 'GPy.testing',
       setup_requires = ['numpy>=1.7'],
-      install_requires = ['numpy>=1.7', 'scipy>=0.16', 'six', 'paramz>=0.9.0'],
+      install_requires = install_requirements,
       extras_require = {'docs':['sphinx'],
                         'optional':['mpi4py',
                                     'ipython>=4.0.0',
@@ -182,9 +187,11 @@ setup(name = 'GPy',
                    'Operating System :: MacOS :: MacOS X',
                    'Operating System :: Microsoft :: Windows',
                    'Operating System :: POSIX :: Linux',
-                   'Programming Language :: Python :: 2.7',
                    'Programming Language :: Python :: 3.5',
                    'Programming Language :: Python :: 3.6',
+                   'Programming Language :: Python :: 3.7',
+                   'Programming Language :: Python :: 3.8',
+                   'Programming Language :: Python :: 3.9',
                    'Framework :: IPython',
                    'Intended Audience :: Science/Research',
                    'Intended Audience :: Developers',
diff --git a/travis_tests.py b/travis_tests.py
index bd3f5680..16713962 100644
--- a/travis_tests.py
+++ b/travis_tests.py
@@ -31,7 +31,7 @@
 
 #!/usr/bin/env python
 import matplotlib
-matplotlib.use('agg', warn=False)
+matplotlib.use('agg')
 
 import nose, warnings
 with warnings.catch_warnings():