Change the way __hash__ is inherited; when __eq__ or __cmp__ is overridden

but __hash__ is not, set __hash__ explicitly to None (and tp_hash to NULL).
All unit tests pass now!

1 files changed, 4 insertions, 0 deletions

diff --git a/Lib/test/mapping_tests.py b/Lib/test/mapping_tests.py
index 1c570b6d34..b917540d49 100644
--- a/Lib/test/mapping_tests.py
+++ b/Lib/test/mapping_tests.py
@@ -545,6 +545,8 @@ class TestHashMappingProtocol(TestMappingProtocol):
         class BadEq(object):
             def __eq__(self, other):
                 raise Exc()
+            def __hash__(self):
+                return 24
 
         d = self._empty_mapping()
         d[BadEq()] = 42
@@ -630,6 +632,8 @@ class TestHashMappingProtocol(TestMappingProtocol):
         class BadCmp(object):
             def __eq__(self, other):
                 raise Exc()
+            def __hash__(self):
+                return 42
 
         d1 = self._full_mapping({BadCmp(): 1})
         d2 = self._full_mapping({1: 1})