Class WackyComparator

Lib/test/test_sort.py:334–337

        # verifying ms->key_richcompare == tp->richcompare before comparing.

        class WackyComparator(int):
            def __lt__(self, other):
                elem.__class__ = WackyList2
                return int.__lt__(self, other)

        class WackyList1(list):
            pass