Message 413376 - Python tracker

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Author	gvanrossum
Recipients	ajoino, alex.gronholm, asvetlov, gvanrossum, iritkatriel, jab, njs, tinchester, yselivanov
Date	2022-02-17.01:44:16
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1645062256.86.0.101988894746.issue46771@roundup.psfhosted.org>
In-reply-to

Content
FWIW it looks like this part of taskgroups is vulnerable to a similar race: https://github.com/python/cpython/blob/6f1efd19a70839d480e4b1fcd9fecd3a8725824b/Lib/asyncio/taskgroups.py#L212-L232 Deleting the two lines I mentioned won't fix it here; a hack using the cancel message might be more appropriate. (I note that there is no documented way to retrieve the cancel message; you're supposed to access the protected `_cancel_message` attribute, apparently. Looks like we forgot something there.)

FWIW it looks like this part of taskgroups is vulnerable to a similar race:

https://github.com/python/cpython/blob/6f1efd19a70839d480e4b1fcd9fecd3a8725824b/Lib/asyncio/taskgroups.py#L212-L232

Deleting the two lines I mentioned won't fix it here; a hack using the cancel message might be more appropriate. (I note that there is no documented way to retrieve the cancel message; you're supposed to access the protected `_cancel_message` attribute, apparently. Looks like we forgot something there.)

History
Date	User	Action	Args
2022-02-17 01:44:17	gvanrossum	set	recipients: + gvanrossum, njs, jab, asvetlov, alex.gronholm, yselivanov, tinchester, iritkatriel, ajoino
2022-02-17 01:44:16	gvanrossum	set	messageid: <1645062256.86.0.101988894746.issue46771@roundup.psfhosted.org>
2022-02-17 01:44:16	gvanrossum	link	issue46771 messages
2022-02-17 01:44:16	gvanrossum	create