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_datetime.py b/Lib/test/test_datetime.py
index cdc9eed..1674961 100644
--- a/Lib/test/test_datetime.py
+++ b/Lib/test/test_datetime.py
@@ -986,6 +986,7 @@
# compare-by-address (which never says "equal" for distinct
# objects).
return 0
+ __hash__ = None # Silence Py3k warning
# This still errors, because date and datetime comparison raise
# TypeError instead of NotImplemented when they don't know what to