fixed some issues in test_pool.py

theano/tensor/signal/tests/test_pool.py

@@ -11,7 +11,6 @@ from theano.tests import unittest_tools as utt
 from theano.tensor.signal.pool import (Pool, pool_2d,
                                        MaxPoolGrad, AveragePoolGrad,
                                        DownsampleFactorMaxGrad,                         
-                                       DownsampleFactorMaxGradGrad,
                                        max_pool_2d_same_size)
 from theano import function
 
@@ -643,7 +642,7 @@ class TestDownsampleFactorMax(utt.InferShapeTester):
         # The value has been manually computed from the theoretical gradient,
         # and confirmed by the implementation.
 
-        assert numpy.allclose(fn_hess( [1, 2]), [[0., 0.], [0., 982.7667]])
+        assert numpy.allclose(fn_hess([1, 2]), [[0., 0.], [0., 982.7667]])
 
     def test_max_pool_2d_2D(self):
         rng = numpy.random.RandomState(utt.fetch_seed())