Message 362571 - Python tracker

Message362571

Author	Christian.Tismer
Recipients	Christian.Tismer, Ondrej Jakubcik, eelizondo, eric.snow, nascheme, ncoghlan, petr.viktorin, scoder, vstinner
Date	2020-02-24.07:27:49
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1582529269.51.0.262042306975.issue35810@roundup.psfhosted.org>
In-reply-to

Content
> How does this change affect stable ABI? Is it necessary to change the > logic in modules that use only the Py_LIMITED_API? If you use heap types, you need to adjust refcounts beginning with Python 3.8 . And since the Py_LIMITED_API uses heap types without hiding these refcount changes by an API call, this breaks the stable API. But it is easily fixable by a runtime version check, or you start over with Python 3.8 as lowest version <wink>.

Content

> How does this change affect stable ABI? Is it necessary to change the 
> logic in modules that use only the Py_LIMITED_API?

If you use heap types, you need to adjust refcounts beginning
with Python 3.8 . And since the Py_LIMITED_API uses heap types
without hiding these refcount changes by an API call,
this breaks the stable API.

But it is easily fixable by a runtime version check, or you start
over with Python 3.8 as lowest version <wink>.

History
Date	User	Action	Args
2020-02-24 07:27:49	Christian.Tismer	set	recipients: + Christian.Tismer, nascheme, ncoghlan, scoder, vstinner, petr.viktorin, eric.snow, eelizondo, Ondrej Jakubcik
2020-02-24 07:27:49	Christian.Tismer	set	messageid: <1582529269.51.0.262042306975.issue35810@roundup.psfhosted.org>
2020-02-24 07:27:49	Christian.Tismer	link	issue35810 messages
2020-02-24 07:27:49	Christian.Tismer	create