flake8 for theano/gof/tests/test_graph_opt_caching.py

theano/gof/tests/test_graph_opt_caching.py

-import unittest, os
+import os
 import numpy
-import six.moves.cPickle as pickle
-from theano.compat import DictMixin, OrderedDict
 import theano
 import theano.tensor as T
 
 floatX = 'float32'
 
+
 def test_graph_opt_caching():
-    opt_db_file = theano.config.compiledir+'/optimized_graphs.pkl'
-    os.system('rm %s'%opt_db_file)
+    opt_db_file = theano.config.compiledir + '/optimized_graphs.pkl'
+    os.system('rm %s' % opt_db_file)
 
     mode = theano.config.mode
     if mode in ["DEBUG_MODE", "DebugMode"]: