revert

tests/base.py

@@ -5,12 +5,6 @@ import six
 
 
 class BaseTestCase(unittest.TestCase):
-    def __init__(self, *args, **kwargs):
-        super(BaseTestCase, self).__init__(*args, **kwargs)
-        if six.PY2:
-            self.assertRegex = self.assertRegexpMatches
-            self.assertCountEqual = self.assertItemsEqual
-
     def assertIn(self, object, collection):
         if six.PY2 and sys.version_info[1] <= 6:
             return self.assertTrue(object in collection)