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fix: dev: cython import errors

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This commit fixes issues observed in Windows where some
cython modules are successfully imported, and some are not.
This causes the global config cython.working to be inconsistent,
which causes import errors when unavailable cython modules
are tried to be imported (example
https://github.com/SheffieldML/GPy/issues/266). This commit uses
a separate flag for each module to fix the issue.
This commit is contained in:
Jayanth Koushik 2017-10-23 15:58:17 -04:00
parent 754c67f71d
commit a7af12e6ea
5 changed files with 32 additions and 21 deletions
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9
GPy/util/choleskies.py
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@ -4,11 +4,14 @@
import numpy as np
from . import linalg
from .config import config
try:
from . import choleskies_cython
config.set('cython', 'working', 'True')
cython_choleskies_working = True
except ImportError:
config.set('cython', 'working', 'False')
print('warning in choleskies: failed to import cython module: falling back to numpy')
cython_choleskies_working = False
def safe_root(N):
i = np.sqrt(N)
@ -100,7 +103,7 @@ def indexes_to_fix_for_low_rank(rank, size):
return np.setdiff1d(np.arange((size**2+size)/2), keep)
if config.getboolean('cython', 'working'):
if cython_choleskies_working and config.getboolean('cython', 'working'):
triang_to_flat = _triang_to_flat_cython
flat_to_triang = _flat_to_triang_cython
backprop_gradient = choleskies_cython.backprop_gradient_par_c