On Sat, Aug 15, 2015 at 8:49 PM, Alexander Belopolsky < alexander.belopol...@gmail.com> wrote: > > PEP 495 [1] is a deliberately minimalistic proposal to remove an > ambiguity in representing some local times as datetime.datetime > objects.
A major issue has come up since my announcement above. Tim Peters have noticed that PEP 495 would violate the "hash invariant" unless the fold attribute is accounted for in inter-zone comparisons. See [2] for details. This issue has been resolved by modifying the definition [3] of the "==" operator for aware datetimes with post-PEP tzinfo. Note that no program will be affected by this change unless it uses a post-PEP tzinfo implementation. I made some smaller changes [4] to the PEP as well and it should finally be ready for pronouncement. [1]: https://www.python.org/dev/peps/pep-0495 [2]: https://mail.python.org/pipermail/datetime-sig/2015-September/000625.html [3]: https://www.python.org/dev/peps/pep-0495/#aware-datetime-equality-comparison [4]: https://hg.python.org/peps/log/39b7c1da05a2/pep-0495.txt
_______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
