Try to convert ImportError into SkipTest on Windows

theano/sandbox/cuda/tests/test_type.py

 import os.path
+import sys
+from six import reraise
 
 from nose.plugins.skip import SkipTest
 from nose.tools import assert_raises
@@ -40,7 +42,18 @@ def test_unpickle_cudandarray_as_numpy_ndarray_flag0():
             else:
                 u = CompatUnpickler(fp)
             if cuda_available:
-                mat = u.load()
+                try:
+                    mat = u.load()
+                except ImportError:
+                    # Windows sometimes fail with nonsensical errors like:
+                    #   ImportError: No module named type
+                    #   ImportError: No module named copy_reg
+                    # when "type" and "copy_reg" are builtin modules.
+                    if sys.platform == 'win32':
+                        exc_type, exc_value, exc_trace = sys.exc_info()
+                        reraise(SkipTest, exc_value, exc_trace)
+                    raise
+
                 assert isinstance(mat, CudaNdarray)
                 assert numpy.asarray(mat)[0] == -42.0
             else: