MAINT: assertIs doesn't exist in 2.6.

Scott Sanderson · rgbkrk · commit 03dbfd29b8d7 · 2017-10-25T11:52:58.000-07:00
diff --git a/tests/cloudpickle_test.py b/tests/cloudpickle_test.py
@@ -720,7 +720,7 @@ def test_builtin_type__new__(self):
         # parameters for factories.  For example, on Python 3.3,
         # `tuple.__new__` is a default value for some methods of namedtuple.
         for t in list, tuple, set, frozenset, dict, object:
-            self.assertIs(pickle_depickle(t.__new__), t.__new__)
+            self.assertTrue(pickle_depickle(t.__new__) is t.__new__)
 
 
 if __name__ == '__main__':
