Tim Peters <t...@python.org> added the comment:
If object A owns a strong reference to object B, and A participates in cyclic gc, and B may be part of a cycle, then it's necessary and sufficient that A's type's tp_traverse implementation invoke Py_VISIT() passing A's pointer to B. It would be a Really Bad Idea to add special cases to the gc module to spare some specific type(s) from following that (currently) utterly uniform rule. ---------- nosy: +tim.peters _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40217> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
