fix import and pep8

theano/sparse/sandbox/sp2.py

@@ -2,11 +2,11 @@ import numpy
 import scipy.sparse
 
 from theano import gof, tensor
-
+from theano.tensor.opt import register_specialize
 from theano.sparse.basic import (
     as_sparse_variable, SparseType, add_s_s, neg,
     mul_s_s, mul_s_d, dot,
-    CSMProperties, CSM, register_specialize,
+    CSMProperties, CSM,
     _is_sparse_variable, _is_dense_variable, CSC, CSR,
     csm_properties, csm_data, csm_indices, csm_indptr, csm_shape,
     _is_sparse,

theano/sparse/tests/test_opt.py

@@ -152,4 +152,4 @@ def test_local_dense_from_sparse_sparse_from_dense():
         f = theano.function([m], o, mode=mode)
         # We should just have a deep copy.
         assert len(f.maker.fgraph.apply_nodes) == 1
-        f([[1,2], [3, 4]])
+        f([[1, 2], [3, 4]])