Skip test correctly when scipy is not there.

theano/sparse/tests/test_opt.py

@@ -7,14 +7,14 @@ except ImportError:
 
 import theano
 from theano import config, tensor
-from theano.sparse import (enable_sparse, CSM, CSMProperties, csm_properties,
-                           CSC, CSR)
-from theano.sparse.tests.test_basic import random_lil
+from theano.sparse import enable_sparse
 from theano.gof.python25 import any
-
 if not enable_sparse:
     raise SkipTest('Optional package sparse disabled')
 
+from theano.sparse import CSM, CSMProperties, csm_properties, CSC, CSR
+from theano.sparse.tests.test_basic import random_lil
+
 
 def test_local_csm_properties_csm():
     data = tensor.vector()

theano/sparse/tests/test_sp2.py

@@ -13,13 +13,13 @@ import theano
 
 from theano import tensor as T
 from theano import sparse as S
+if S.enable_sparse == False:
+    raise SkipTest('Optional package sparse disabled')
+
 from theano.sparse.sandbox import sp2 as S2
 
 from theano.tests import unittest_tools as utt
 
-if S.enable_sparse == False:
-    raise SkipTest('Optional package sparse disabled')
-
 def as_sparse_format(data, format):
     if format == 'csc':
         return scipy.sparse.csc_matrix(data)

theano/sparse/tests/test_utils.py

 import numpy
 
+import theano.sparse
+if theano.sparse.enable_sparse == False:
+    raise SkipTest('Optional package sparse disabled')
+
 from theano.sparse.utils import hash_from_sparse
 from theano.sparse.tests.test_basic import as_sparse_format