Class ColNoCont

Lib/test/test_collections.py:1111–1113

            def __iter__(self): return iter([])
            def __contains__(self, item): return False
        class ColNoCont:
            def __iter__(self): return iter([])
            def __len__(self): return 0
        self.assertNotIsSubclass(ColNoIter, Collection)
        self.assertNotIsInstance(ColNoIter(), Collection)
        self.assertNotIsSubclass(ColNoSize, Collection)