Message 360057 - Python tracker

Message360057

Author	vstinner
Recipients	eric.snow, vstinner
Date	2020-01-15.15:29:47
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1579102187.76.0.142719686011.issue38858@roundup.psfhosted.org>
In-reply-to

Content
FYI this change broke librepo which calls PyLong_FromLong() without holding the GIL. In Python 3.8, "it works". In Python 3.9, it does crash: get_small_int() gets a NULL tstate and then dereference a NULL pointer. librepo bug: https://bugzilla.redhat.com/show_bug.cgi?id=1788918 IMHO it's a bug in librepo: the GIL must be held to use Python C API.

Content

FYI this change broke librepo which calls PyLong_FromLong() without holding the GIL. In Python 3.8, "it works". In Python 3.9, it does crash: get_small_int() gets a NULL tstate and then dereference a NULL pointer.

librepo bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1788918

IMHO it's a bug in librepo: the GIL must be held to use Python C API.

History
Date	User	Action	Args
2020-01-15 15:29:47	vstinner	set	recipients: + vstinner, eric.snow
2020-01-15 15:29:47	vstinner	set	messageid: <1579102187.76.0.142719686011.issue38858@roundup.psfhosted.org>
2020-01-15 15:29:47	vstinner	link	issue38858 messages
2020-01-15 15:29:47	vstinner	create