Fixed tests

theano/misc/pkl_utils.py

@@ -13,7 +13,7 @@ import warnings
 from collections import defaultdict
 from contextlib import closing
 from pickle import HIGHEST_PROTOCOL
-from six import StringIO
+from theano.compat.six import StringIO
 try:
     from pickle import DEFAULT_PROTOCOL
 except ImportError:
@@ -25,12 +25,11 @@ from theano.compat import PY3
 from theano.compat.six import string_types
 from theano.compile.sharedvalue import SharedVariable
 try:
-    from cuda_ndarray import cuda_ndarray
+    from theano.sandbox.cuda import cuda_ndarray
 except ImportError:
     cuda_ndarray = None
 
 
-
 __docformat__ = "restructuredtext en"
 __authors__ = "Pascal Lamblin"
 __copyright__ = "Copyright 2013, Universite de Montreal"
@@ -142,22 +141,37 @@ class PersistentNdarrayID(object):
         return name
 
     def __call__(self, obj):
-        if ((type(obj) is numpy.ndarray) or
-                (type(obj) is cuda_ndarray.CudaNdarray)):
+        if type(obj) is numpy.ndarray:
+            if id(obj) not in self.seen:
+                def write_array(f):
+                    numpy.lib.format.write_array(f, obj)
+                name = self._resolve_name(obj)
+                zipadd(write_array, self.zip_file, name)
+                self.seen[id(obj)] = 'ndarray.{}'.format(name)
+            return self.seen[id(obj)]
+
+
+class PersistentCudaNdarrayID(PersistentNdarrayID):
+    def __init__(self, zip_file):
+        super(PersistentCudaNdarrayID, self).__init__(zip_file)
+
+    def __call__(self, obj):
+        print 'try cuda'
+        if (cuda_ndarray is not None and
+                type(obj) is cuda_ndarray.cuda_ndarray.CudaNdarray):
+            print 'cuda'
             if id(obj) not in self.seen:
                 def write_array(f):
                     numpy.lib.format.write_array(f, numpy.asarray(obj))
                 name = self._resolve_name(obj)
                 zipadd(write_array, self.zip_file, name)
-                if type(obj) is cuda_ndarray.CudaNdarray:
-                    self.seen[id(obj)] = 'cuda_ndarray.{}'.format(name)
-                else:
-                    self.seen[id(obj)] = 'ndarray.{}'.format(name)
+                self.seen[id(obj)] = 'cuda_ndarray.{}'.format(name)
             return self.seen[id(obj)]
+        super(PersistentCudaNdarrayID, self).__call__(obj)
 
 
-class PersistentSharedVariableID(PersistentNdarrayID):
-    """Persist the names of shared variable arrays in the zip file.
+class PersistentSharedVariableID(PersistentCudaNdarrayID):
+    """Uses shared variable names when persisting to zip file.
 
     If a shared variable has a name, this name is used as the name of the
     NPY file inside of the zip file. NumPy arrays that aren't matched to a
@@ -232,7 +246,7 @@ class PersistentNdarrayLoad(object):
                               "numpy.ndarray")
                 return array
             elif cuda_ndarray:
-                return cuda_ndarray.CudaNdarray(array)
+                return cuda_ndarray.cuda_ndarray.CudaNdarray(array)
             else:
                 raise ImportError("Cuda not found. Cannot unpickle "
                                   "CudaNdarray")
@@ -240,18 +254,18 @@ class PersistentNdarrayLoad(object):
             return array
 
 
-def dump(obj, f, protocol=DEFAULT_PROTOCOL,
+def dump(obj, file_handler, protocol=DEFAULT_PROTOCOL,
          persistent_id=PersistentSharedVariableID):
     """Pickles an object to a zip file using external persistence.
 
     :param obj: The object to pickle.
     :type obj: object
 
-    :param f: The file handle to save the object to.
-    :type f: file
+    :param file_handler: The file handle to save the object to.
+    :type file_handler: file
 
     :param protocol: The pickling protocol to use. Unlike Python's built-in
-        pickle, the default is set to `2` insstead of 0 for Python 2. The
+        pickle, the default is set to `2` instead of 0 for Python 2. The
         Python 3 default (level 3) is maintained.
     :type protocol: int, optional
 
@@ -283,7 +297,7 @@ def dump(obj, f, protocol=DEFAULT_PROTOCOL,
     array(2)
 
     """
-    with closing(zipfile.ZipFile(f, 'w', zipfile.ZIP_DEFLATED,
+    with closing(zipfile.ZipFile(file_handler, 'w', zipfile.ZIP_DEFLATED,
                                  allowZip64=True)) as zip_file:
         def func(f):
             p = pickle.Pickler(f, protocol=protocol)

theano/misc/tests/test_pkl_utils.py

 from numpy.testing import assert_allclose
+from nose.plugins.skip import SkipTest
+
+import theano.sandbox.cuda as cuda_ndarray
 
 from theano.sandbox.cuda.type import CudaNdarrayType
 from theano.sandbox.cuda.var import CudaNdarraySharedVariable
 from theano.misc.pkl_utils import dump, load
 
+if not cuda_ndarray.cuda_available:
+    raise SkipTest('Optional package cuda disabled')
+
 
 def test_dump_load():
     x = CudaNdarraySharedVariable('x', CudaNdarrayType((1, 1), name='x'),
@@ -16,4 +22,4 @@ def test_dump_load():
         x = load(f)
 
     assert x.name == 'x'
-    assert_allclose(x.get_value(), [[1]])
+    assert_allclose(x.get_value(), [[1]])
\ No newline at end of file