diff --git a/GPy/__init__.py b/GPy/__init__.py
index 5f2a209f..2b5c233f 100644
--- a/GPy/__init__.py
+++ b/GPy/__init__.py
@@ -28,11 +28,11 @@ try:
     #Get rid of nose dependency by only ignoring if you have nose installed
     from nose.tools import nottest
     @nottest
-    def tests():
-        Tester(testing).test(verbose=10)
+    def tests(verbose=10):
+        Tester(testing).test(verbose=verbose)
 except:
-    def tests():
-        Tester(testing).test(verbose=10)
+    def tests(verbose=10):
+        Tester(testing).test(verbose=verbose)
 
 def load(file_path):
     """
diff --git a/GPy/kern/_src/independent_outputs.py b/GPy/kern/_src/independent_outputs.py
index 9ebb5711..e9c575bf 100644
--- a/GPy/kern/_src/independent_outputs.py
+++ b/GPy/kern/_src/independent_outputs.py
@@ -105,7 +105,7 @@ class IndependentOutputs(CombinationKernel):
         if X2 is None:
             # TODO: make use of index_to_slices
             # FIXME: Broken as X is already sliced out
-            print("Warning, gradients_X may not be working, I believe X has already been sliced out by the slicer!")
+            # print("Warning, gradients_X may not be working, I believe X has already been sliced out by the slicer!")
             values = np.unique(X[:,self.index_dim])
             slices = [X[:,self.index_dim]==i for i in values]
             [target.__setitem__(s, kern.gradients_X(dL_dK[s,s],X[s],None))