Issue 2235: Py3k warnings are now emitted for classes that will no longer inherit a__hash__ implementation from a parent class in Python 3.x. The standard library and test suite have been updated to not emit these warnings.
diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index 70980f8..6671f2c 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -1064,6 +1064,7 @@
         class badzero(int):
             def __cmp__(self, other):
                 raise RuntimeError
+            __hash__ = None # Invalid cmp makes this unhashable
         self.assertRaises(RuntimeError, range, a, a + 1, badzero(1))
 
         # Reject floats when it would require PyLongs to represent.