Howdy, I have produced this: https://bugs.python.org/issue39016
No idea if it's correct, doing that too rarely. Cheers -- Chris On 10.12.19 14:34, Victor Stinner wrote: > Can you please open an issue at https://bugs.python.org/ and then post > the link in this thread? > > Thanks in advance, > Victor > > Le mar. 10 déc. 2019 à 14:18, Christian Tismer <tis...@stackless.com> a écrit > : >> >> Hi Łukasz, >> >> tonite I found a critical bug that affects all heaptype extension >> classes with a custom (not PyType_Type) type. >> >> the bug is in typeobject.c function type_mro_modified line 309: >> >> if (custom) { >> _Py_IDENTIFIER(mro); >> mro_meth = lookup_maybe_method( >> (PyObject *)type, &PyId_mro, &unbound); >> if (mro_meth == NULL) >> goto clear; >> Py_INCREF(mro_meth); >> type_mro_meth = lookup_maybe_method( >> (PyObject *)&PyType_Type, &PyId_mro, &unbound); >> if (type_mro_meth == NULL) >> goto clear; >> Py_INCREF(type_mro_meth); >> if (mro_meth != type_mro_meth) >> goto clear; >> Py_XDECREF(mro_meth); >> Py_XDECREF(type_mro_meth); >> } >> >> This block is wrong because it decrefs a value that comes from >> lookup_maybe_method which does not incref. >> >> The code is easily fixed by two Py_INCREF s. >> >> Please let me know how you want to proceed. >> This is a critical error, producing negative refcounts. >> >> Cheers -- Chris >> >> >> On 10.12.19 10:22, Łukasz Langa wrote: >>> Python 3.8.1rc1 is the release candidate of the first maintenance >>> release of Python 3.8. >>> >>> The Python 3.8 series is the newest feature release of the Python >>> language, and it contains many new features and optimizations. You can >>> find Python 3.8.1rc1 here: >>> >>> https://www.python.org/downloads/release/python-381rc1/ >>> >>> Assuming no critical problems are found prior to *2019-12-16*, the >>> scheduled release date for *3.8.1* as well as *Ned Deily's birthday*, no >>> code changes are planned between this release candidate and the final >>> release. >>> >>> That being said, please keep in mind that this is a pre-release of 3.8.1 >>> and as such its main purpose is testing. >>> >>> See the “What’s New in Python 3.8 >>> <https://docs.python.org/3.8/whatsnew/3.8.html>” document for more >>> information about features included in the 3.8 series. Detailed >>> information about all changes made in 3.8.0 can be found in its change log. >>> >>> Maintenance releases for the 3.8 series will continue at regular >>> bi-monthly intervals, with *3.8.2* planned for February 2020. >>> >>> >>> We hope you enjoy Python 3.8! >>> >>> Thanks to all of the many volunteers who help make Python Development >>> and these releases possible! Please consider supporting our efforts by >>> volunteering yourself or through organization contributions to the >>> Python Software Foundation. >>> >>> https://www.python.org/psf/ >>> >>> >>> _______________________________________________ >>> Python-Dev mailing list -- python-...@python.org >>> To unsubscribe send an email to python-dev-le...@python.org >>> https://mail.python.org/mailman3/lists/python-dev.python.org/ >>> Message archived at >>> https://mail.python.org/archives/list/python-...@python.org/message/IGJ6ZOAOT2WFY5ZIPRQNTHOSUMPUAO2H/ >>> Code of Conduct: http://python.org/psf/codeofconduct/ >>> >> >> >> -- >> Christian Tismer :^) tis...@stackless.com >> Software Consulting : http://www.stackless.com/ >> Karl-Liebknecht-Str. 121 : https://github.com/PySide >> 14482 Potsdam : GPG key -> 0xFB7BEE0E >> phone +49 173 24 18 776 fax +49 (30) 700143-0023 >> >> _______________________________________________ >> python-committers mailing list -- python-committers@python.org >> To unsubscribe send an email to python-committers-le...@python.org >> https://mail.python.org/mailman3/lists/python-committers.python.org/ >> Message archived at >> https://mail.python.org/archives/list/python-committers@python.org/message/6VIEOGQJ433TVQZRYFXQ7SWQM3XRBBKD/ >> Code of Conduct: https://www.python.org/psf/codeofconduct/ > > > -- Christian Tismer :^) tis...@stackless.com Software Consulting : http://www.stackless.com/ Karl-Liebknecht-Str. 121 : https://github.com/PySide 14482 Potsdam : GPG key -> 0xFB7BEE0E phone +49 173 24 18 776 fax +49 (30) 700143-0023 _______________________________________________ python-committers mailing list -- python-committers@python.org To unsubscribe send an email to python-committers-le...@python.org https://mail.python.org/mailman3/lists/python-committers.python.org/ Message archived at https://mail.python.org/archives/list/python-committers@python.org/message/6A7UURL224NQQFHRJXRQYKVTRWNHLLGR/ Code of Conduct: https://www.python.org/psf/codeofconduct/
