Message 387797 - Python tracker

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In-reply-to
Author	rhettinger
Recipients	Gerrit.Holl, docs@python, eryksun, martin.panter, rhettinger
Date	2021年02月28日.00:10:50
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1614471050.42.0.619402795142.issue20503@roundup.psfhosted.org>

Content
This is a bit out of date. The isinstance() docs now specify that the predicate tests for direct, indirect, and virtual inheritance. Likewise, the super() docs already specify that only the __mro__ is searched. So those docs are already precise. Am thinking of adding a FAQ entry about when direct inheritance is required and include the OP's example. FWIW, this isn't really about super(). It affects any attribute lookup or any other property of inheritance. A true result from instance() doesn't imply that actual inheritance has occurred.

Content

This is a bit out of date. The isinstance() docs now specify that the predicate tests for direct, indirect, and virtual inheritance. Likewise, the super() docs already specify that only the __mro__ is searched. So those docs are already precise.
Am thinking of adding a FAQ entry about when direct inheritance is required and include the OP's example. FWIW, this isn't really about super(). It affects any attribute lookup or any other property of inheritance. A true result from instance() doesn't imply that actual inheritance has occurred.

History
Date	User	Action	Args
2021年02月28日 00:10:50	rhettinger	set	recipients: + rhettinger, docs@python, Gerrit.Holl, martin.panter, eryksun
2021年02月28日 00:10:50	rhettinger	set	messageid: <1614471050.42.0.619402795142.issue20503@roundup.psfhosted.org>
2021年02月28日 00:10:50	rhettinger	link	issue20503 messages
2021年02月28日 00:10:50	rhettinger	create

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