Fixed check of the existence of the cuda_ndarray module under Windows, where the…

theano/sandbox/cuda/__init__.py

 import atexit, os, stat
 from theano.compile import optdb
 from theano import config
+from theano.gof.cmodule import get_lib_extension
 
 import logging
 _logger_name = 'theano.sandbox.cuda'
@@ -55,8 +56,9 @@ date = max(date,os.stat(os.path.join(cuda_path,'cuda_ndarray.cuh'))[stat.ST_MTIM
 date = max(date,os.stat(os.path.join(cuda_path,'conv_full_kernel.cu'))[stat.ST_MTIME])
 date = max(date,os.stat(os.path.join(cuda_path,'conv_kernel.cu'))[stat.ST_MTIME])
 
-cuda_ndarray_loc = os.path.join(config.compiledir,'cuda_ndarray')
-cuda_ndarray_so = os.path.join(cuda_ndarray_loc,'cuda_ndarray.so')
+cuda_ndarray_loc = os.path.join(config.compiledir, 'cuda_ndarray')
+cuda_ndarray_so = os.path.join(cuda_ndarray_loc,
+                               'cuda_ndarray.' + get_lib_extension())
 compile_cuda_ndarray = True
 
 if os.path.exists(cuda_ndarray_so):
@@ -81,8 +83,11 @@ try:
             if not os.path.exists(cuda_ndarray_loc):
                 os.makedirs(cuda_ndarray_loc)
 
-            nvcc_compiler.nvcc_module_compile_str('cuda_ndarray', code, location = cuda_ndarray_loc,
-                                                  include_dirs=[cuda_path], libs=['cublas'])
+            nvcc_compiler.nvcc_module_compile_str(
+                    'cuda_ndarray',
+                    code,
+                    location=cuda_ndarray_loc,
+                    include_dirs=[cuda_path], libs=['cublas'])
 
             from cuda_ndarray.cuda_ndarray import *
 except Exception, e:
@@ -103,9 +108,7 @@ if cuda_available:
 if cuda_available:
     #check if their is an old cuda_ndarray that was loading instead of the one we compiled!
     import cuda_ndarray.cuda_ndarray
-    from theano.gof.cmodule import get_lib_extension
-    if os.path.join(config.compiledir,'cuda_ndarray','cuda_ndarray.'+get_lib_extension())!=cuda_ndarray.cuda_ndarray.__file__:
-        
+    if cuda_ndarray_so != cuda_ndarray.cuda_ndarray.__file__:
         warning("WARNING: cuda_ndarray was loaded from",cuda_ndarray.cuda_ndarray.__file__,"This is not expected as theano should compile it automatically for you. Do you have a directory called cuda_ndarray in your LD_LIBRARY_PATH environment variable? If so, please remove it as it is outdated!")
 
     from theano.sandbox.cuda.type import CudaNdarrayType