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Author tim.peters
Recipients corona10, pablogsal, shihai1991, tim.peters, vstinner
Date 2020-04-07.17:22:39
SpamBayes Score -1.0
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Message-id <1586280159.79.0.950758508198.issue40217@roundup.psfhosted.org>
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Content 
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.
History
Date User Action Args
2020-04-07 17:22:39tim.peterssetrecipients: + tim.peters, vstinner, corona10, pablogsal, shihai1991
2020-04-07 17:22:39tim.peterssetmessageid: <1586280159.79.0.950758508198.issue40217@roundup.psfhosted.org>
2020-04-07 17:22:39tim.peterslinkissue40217 messages
2020-04-07 17:22:39tim.peterscreate