PEP8: fix E303, too many blank lines.

theano/sparse/basic.py

@@ -891,7 +891,6 @@ class Transpose(gof.op.Op):
         assert _is_sparse(x)
         out[0] = x.transpose()
 
-
     def grad(self, (x,), (gz,)):
         assert _is_sparse_variable(x) and _is_sparse_variable(gz)
         return transpose(gz),
@@ -1237,7 +1236,6 @@ class StructuredDotCSC(gof.Op):
                 [tensor.tensor(dtype_out, (False, b.type.broadcastable[1]))])
         return r
 
-
     def perform(self, node, (a_val, a_ind, a_ptr, a_nrows, b), (out,)):
         a = scipy.sparse.csc_matrix((a_val, a_ind, a_ptr),
                 (a_nrows, b.shape[0]),