test_viewop.py has been modified in order to respect the flake8 style.

theano/sandbox/cuda/tests/test_viewop.py

 from __future__ import absolute_import, print_function, division
 import numpy
-import unittest
 from nose.plugins.skip import SkipTest
 
 import theano
@@ -11,7 +10,7 @@ mode_with_gpu = theano.compile.mode.get_default_mode().including('gpu')
 
 def test_viewop_gpu():
     from theano.sandbox import cuda
-    if cuda.cuda_available == False:
+    if cuda.cuda_available is False:
         raise SkipTest('Optional package cuda disabled')
     _x = theano.tensor.fvector('x')
     x = cuda.gpu_from_host(_x)