Daniel Stutzbach <dan...@stutzbachenterprises.com> added the comment:
Are you sure the old-style classes don't support ABCs? ABCTestCase.validate_isinstance in Lib/test/test_collection.py specifically tests that both new-style and old-style classes work, unless I'm reading it wrong. (and those tests fail if I make ABCMeta.__instancecheck__ and ABCMeta.__subclasscheck__ always return False for old-style classes) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue2521> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com