On 2/02/21 12:13 am, Phil Thompson via Python-Dev wrote:
TypeError: object.__new__(B) is not safe, use B.__new__()
It's not safe because object.__new__ doesn't know about any C-level initialisation that A or B need. At the C level, there is always a *single* inheritance hierarchy. The right thing is for B's tp_new to directly call A's tp_new, which calls object's tp_new. Don't worry about Python-level multiple inheritance; the interpreter won't let you create an inheritance structure that would mess this up. -- Greg _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/IW3OX6Y324VSF4WLQHGA7EFHJQ6XEBH4/ Code of Conduct: http://python.org/psf/codeofconduct/
