Author vstinner
Recipients BTaskaya, WildCard65, ZackerySpytz, corona10, erlendaasland, hroncok, kj, nascheme, pablogsal, ronaldoussoren, serhiy.storchaka, shihai1991, steve.dower, vstinner
Date 2021-09-08.16:32:15
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1631118735.88.0.532274653046.issue39573@roundup.psfhosted.org>
In-reply-to
Content
I changed the issue title to restrict its scope: "[C API] Avoid accessing PyObject and PyVarObject members directly: add Py_SET_TYPE() and Py_IS_TYPE(), disallow Py_TYPE(obj)=type".

Making PyObject and PyVarObject structures opaque is a broader topic which should be splited into sub-issues.

"Py_TYPE(obj)=type;" is now disallowed. I consider that the work of this issue is now completed and I close the issue.

Thanks everyone who help to fix these tedious issues!

You can continue to use this issue if you need my help to adapt your C extensions to Py_SET_TYPE()/Py_SET_SIZE().

See also the upgrade_pythoncapi.py script of the pythoncapi_compat project which helps to port your C extensions without losing support for old Python versions:
https://github.com/pythoncapi/pythoncapi_compat

See also the Py_TYPE() change announcement on the capi-sig list:
https://mail.python.org/archives/list/capi-sig@python.org/thread/WGRLTHTHC32DQTACPPX36TPR2GLJAFRB/
History
Date User Action Args
2021-09-08 16:32:16vstinnersetrecipients: + vstinner, nascheme, ronaldoussoren, serhiy.storchaka, steve.dower, hroncok, corona10, ZackerySpytz, pablogsal, WildCard65, BTaskaya, shihai1991, erlendaasland, kj
2021-09-08 16:32:15vstinnersetmessageid: <1631118735.88.0.532274653046.issue39573@roundup.psfhosted.org>
2021-09-08 16:32:15vstinnerlinkissue39573 messages
2021-09-08 16:32:15vstinnercreate