New submission from ppperry <maprea...@olum.org>:
If you have a class that defines __new__ to the __new__ of another builtin type that it isn't a subclass of: >>> class X: ... __new__ = tuple.__new__ Instantiating this class should produce an error because `tuple.__new__` can't handle non-tuples, but instead it succeeds: >>> X() <__main__.X object at 0x00000000032C3F98> (related: issue34284) ---------- components: Interpreter Core messages: 323297 nosy: Vadim Pushtaev, ncoghlan, ppperry, serhiy.storchaka priority: normal severity: normal status: open title: User-created types with wrong __new__ can be instantiated type: behavior versions: Python 2.7, Python 3.6, Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue34362> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
