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author	Yonatan Goldschmidt <yon.goldschmidt@gmail.com>
	Sat, 22 Feb 2020 13:11:48 +0000 (15:11 +0200)
committer	GitHub <noreply@github.com>
	Sat, 22 Feb 2020 13:11:48 +0000 (15:11 +0200)
commit	1c56f8ffad44478b4214a2bf8eb7cf51c28a347a
tree	c2303c03737343e14f7720a97200bb007845ac7b	tree \| snapshot
parent	a025d4ca99fb4c652465368e0b4eb03cf4b316b9	commit \| diff

bpo-39382: Avoid dangling object use in abstract_issubclass() (GH-18530)

Hold reference of __bases__ tuple until tuple item is done with, because by
dropping the reference the item may be destroyed.

Lib/test/test_isinstance.py		diff \| blob \| blame \| history
Misc/ACKS		diff \| blob \| blame \| history
Misc/NEWS.d/next/Core and Builtins/2020-02-18-01-40-13.bpo-39382.OLSJu9.rst	[new file with mode: 0644]	blob
Objects/abstract.c		diff \| blob \| blame \| history

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