Mailman 3 October 2022 - python-committers

Thank you for your contributions to Python 3.11!
by Pablo Galindo Salgado 27 Oct '22

27 Oct '22

Hi everyone, Now that the 3.11.0 release is finally done and I can relax a bit, I just wanted to thank you all for your fantastic work that has made Python 3.11 such a fantastic release. No matter if you committed code to 3.11 or opened a bug, helped with the documentation, reviewed pull requests, participated in discussions, made a PEP or help writing one, fixed a bug or one hundred or make optimizations to the interpreter or any other of the many ways to contribute. Your work makes a huge difference and Python 3.11 is much better because of that :) Also, I want to especially thank all core devs and contributors that have helped me and the release team take care of release blockers, buildbot failures, CVE patches, and any other form of release crisis. Thank you! Finally, a huge thanks to my colleagues in the release team that make these releases possible and help to make sure that my mistakes are not too obvious to end users :P Being your release manager for 3.11 and 3.10 has been a privilege and an honor (and it will continue for a couple of years of bugfixes and security releases, I'm not going anywhere). Regards from rainy London, Pablo Galindo Salgado

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[RELEASE] Python 3.11 final (3.11.0) is available
by Pablo Galindo Salgado 25 Oct '22

25 Oct '22

Python 3.11 is finally released. In the CPython release team, we have put a lot of effort into making 3.11 the best version of Python possible. Better tracebacks, faster Python, exception groups and except*, typing improvements and much more. Get it here: https://www.python.org/downloads/release/python-3110/ ## This is the stable release of Python 3.11.0 Python 3.11.0 is the newest major release of the Python programming language, and it contains many new features and optimizations. # Major new features of the 3.11 series, compared to 3.10 Some of the new major new features and changes in Python 3.11 are: ## General changes * [PEP 657](https://www.python.org/dev/peps/pep-0657/) -- Include Fine-Grained Error Locations in Tracebacks * [PEP 654](https://www.python.org/dev/peps/pep-0654/) -- Exception Groups and `except*` * [PEP 680](https://www.python.org/dev/peps/pep-0680/) -- tomllib: Support for Parsing TOML in the Standard Library * [gh-90908](https://github.com/python/cpython/issues/90908) -- Introduce task groups to asyncio * [gh-34627](https://github.com/python/cpython/issues/34627/) -- Atomic grouping (`(?>...)`) and possessive quantifiers (`*+, ++, ?+, {m,n}+`) are now supported in regular expressions. * The [Faster CPython Project](https://github.com/faster-cpython/) is already yielding some exciting results. Python 3.11 is up to 10-60% faster than Python 3.10. On average, we measured a 1.22x speedup on the standard benchmark suite. See [Faster CPython]( https://docs.python.org/3.11/whatsnew/3.11.html#faster-cpython) for details. ## Typing and typing language changes * [PEP 673](https://www.python.org/dev/peps/pep-0673/) -- Self Type * [PEP 646](https://www.python.org/dev/peps/pep-0646/) -- Variadic Generics * [PEP 675](https://www.python.org/dev/peps/pep-0675/) -- Arbitrary Literal String Type * [PEP 655](https://www.python.org/dev/peps/pep-0655/) -- Marking individual TypedDict items as required or potentially-missing * [PEP 681](https://www.python.org/dev/peps/pep-0681/) -- Data Class Transforms # More resources * [Online Documentation](https://docs.python.org/3.11/) * [PEP 664](https://www.python.org/dev/peps/pep-0664/), 3.11 Release Schedule * Report bugs at [ https://github.com/python/cpython/issues](https://github.com/python/cpython… . * [Help fund Python and its community](/psf/donations/). # And now for something completely different When a spherical non-rotating body of a critical radius collapses under its own gravitation under general relativity, theory suggests it will collapse to a single point. This is not the case with a rotating black hole (a Kerr black hole). With a fluid rotating body, its distribution of mass is not spherical (it shows an equatorial bulge), and it has angular momentum. Since a point cannot support rotation or angular momentum in classical physics (general relativity being a classical theory), the minimal shape of the singularity that can support these properties is instead a ring with zero thickness but non-zero radius, and this is referred to as a ringularity or Kerr singularity. This kind of singularity has the following peculiar property. The spacetime allows a geodesic curve (describing the movement of observers and photons in spacetime) to pass through the center of this ring singularity. The region beyond permits closed time-like curves. Since the trajectory of observers and particles in general relativity are described by time-like curves, it is possible for observers in this region to return to their past. This interior solution is not likely to be physical and is considered a purely mathematical artefact. There are some other interesting free-fall trajectories. For example, there is a point in the axis of symmetry that has the property that if an observer is below this point, the pull from the singularity will force the observer to pass through the middle of the ring singularity to the region with closed time-like curves and it will experience repulsive gravity that will push it back to the original region, but then it will experience the pull from the singularity again and will repeat this process forever. This is, of course, only if the extreme gravity doesn’t destroy the observer first. # We hope you enjoy the new releases! 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/ If you have any questions, please reach out to me or another member of the release team :) Your friendly release team, Ned Deily @nad https://discuss.python.org/u/nad Steve Dower @steve.dower https://discuss.python.org/u/steve.dower Pablo Galindo Salgado @pablogsal https://discuss.python.org/u/pablogsal

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IMPORTANT: Check the 3.11.0 cherry-picks
by Pablo Galindo Salgado 24 Oct '22

24 Oct '22

Hi everyone, I emerged from cherry-picking hell! As mentioned previously, the 3.11.0 final release will be done from the "branch-v3.11.0" branch and will contain a bunch of cherry-picked commits on top of v3.11.0rc2. These commits are: * All documentation commits that **do not touch** any source code (120+ commits). * The following bugfixes: + 6b999982cb8 gh-95027: Fix regrtest stdout encoding on Windows (GH-98492) + 970c10aa6d0 gh-97616: list_resize() checks for integer overflow (GH-97617) + 67f5d24e44c gh-96848: Fix -X int_max_str_digits option parsing (GH-96988) + 9e008fe3519 gh-96821: Fix undefined behaviour in `_testcapimodule.c` (GH-96915) (GH-96927) + bac61bc5b13 gh-95778: Mention sys.set_int_max_str_digits() in error message (GH-96874) + 9cb7324e8fc [3.11] gh-96587: Raise `SyntaxError` for PEP654 on older `feature_version` (GH-96588) (#96591) + 84fd4a54a61 [3.11] gh-97897: Prevent os.mkfifo and os.mknod segfaults with macOS 13 SDK (GH-97944) (#97969) + 1a788914ca6 gh-96865: [Enum] fix Flag to use CONFORM boundary (GH-97528) + c95433573ac [3.11] gh-98331: Update bundled pip to 22.3 (GH-98332) (gh-98400) + fc127628d58 gh-98414: py.exe launcher does not use defaults for -V:company/ option (GH-98460) + 585c95df957 [3.11] GH-97752: Clear the previous member of newly-created generator/coroutine frames (GH-97812) + 4e0fda59f1f gh-98360: multiprocessing now spawns children on Windows with correct argv[0] in virtual environments (GH-98462) + 4c0c1e201a8 [3.11] gh-97514: Don't use Linux abstract sockets for multiprocessing (GH-98501) (GH-98502) + d0ab10f6f01 [3.11] GH-97002: Prevent _PyInterpreterFrames from backing more than one PyFrameObject (GH-98002) + 154b3cd7516 GH-96975: Skip incomplete frames in PyEval_GetFrame (GH-97018) Please *check these commits* and let me know ASAP if we are missing something you would like to include on the 3.11.0 final release. You have until 15:00 UTC+0 today to let me know, otherwise, your changes will need to wait until 3.11.1. Thanks for your help! Regards from sunny London, Pablo Galindo Salgado

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RELEASE MANAGEMENT: Python 3.11 release stream
by Pablo Galindo Salgado 22 Oct '22

22 Oct '22

Hi everyone, I am currently swamped fixing merge conflicts from the cherry-picking to the final release candidate but I wanted to write to tell you I'm excited to confirm that we will be haven a Python 3.11 release party as we did last year with 3.10. The event will be co-hosted by the fantastic people of the Python discord channel. The URL for the stream is this one: https://www.youtube.com/watch?v=PGZPSWZSkJI *The release party will start on October 24th at 17:00 UTC+0.* In this stream, some core developers (Irit, Mark, Brandt, Thomas and Łukasz) will be talking about Python 3.11 features, the work on the faster CPython project, some sneak peek on Python 3.12 and beyond, talking about the core Dev in residence role and other things with some time for moderated Q&A. I will be doing the release live and will also cover what I am doing. Is a fantastic opportunity to watch me break everything live :) Who knows, maybe I break GitHub..... again! :D In the end, people from the audience will be able to ask questions in a moderated Q&A, so it would be fantastic if you can be there to maybe answer some questions from the comments or complete the ones we give (or correct us if we say something wrong). Or you can just hang out quietly. Whatever you prefer is good! The main purpose of the stream is to raise excitement about Python 3.11, explain the new features to users, try to get the community closer to the core Dev team and allow them to ask questions to the core dev team. Also, funny party hats will be used! I hope you find the event interesting and consider attending. Python 3.11 is going to be a fantastic release and we want it to be even better :) Please, reach out to me if you have any questions or suggestions. Regards from rainy London, Pablo Galindo Salgado

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Welcome Alex Waygood to the team!
by Brett Cannon 19 Oct '22

19 Oct '22

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Welcome Filipe Lains to the team!
by Brett Cannon 18 Oct '22

18 Oct '22

<EOM>

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[RELEASE] Python versions 3.10.8, 3.9.15, 3.8.15, 3.7.15 now available
by Łukasz Langa 12 Oct '22

12 Oct '22

Déjà vu? Right, a month after the expedited releases we are doing the dance again. This coincides with the regular scheduled time for 3.10.8 but since we accrued a few fixes in 3.7 - 3.9 as well, we’re again releasing all four editions at the same time. We’re not promising to continue at this pace 😅 <https://discuss.python.org/t/python-versions-3-10-8-3-9-15-3-8-15-3-7-15-no…>Security content this time CVE-2022-40674: bundled libexpat was upgraded from 2.4.7 to 2.4.9 which fixes a heap use-after-free vulnerability in function doContent gh-97616: a fix for a possible buffer overflow in list *= int gh-97612: a fix for possible shell injection in the example script get-remote-certificate.py (this issue originally had a CVE assigned to it, which its author withdrew) gh-96577: a fix for a potential buffer overrun in msilib <https://discuss.python.org/t/python-versions-3-10-8-3-9-15-3-8-15-3-7-15-no…>Python 3.10.8 Get it here: https://www.python.org/downloads/release/python-3108/ <https://www.python.org/downloads/release/python-3108/> As a bugfix release coming a mere month after an out-of-schedule security release, 3.10.8 is somewhat smaller compared to 3.9.8 released at the same stage of the release cycle a year ago. There’s 151 commits vs 204 in 3.9. It’s still a larger release than 3.10.7 at 113 commits. One way or the other, it’s worth checking out the change log <https://docs.python.org/release/3.10.8/whatsnew/changelog.html>. <https://discuss.python.org/t/python-versions-3-10-8-3-9-15-3-8-15-3-7-15-no…>And now for something completely different Granular convection is a phenomenon where granular material subjected to shaking or vibration will exhibit circulation patterns similar to types of fluid convection. It is sometimes described as the Brazil nut effect when the largest particles end up on the surface of a granular material containing a mixture of variously sized objects; this derives from the example of a typical container of mixed nuts, where the largest will be Brazil nuts. The phenomenon is also known as the muesli effect since it is seen in packets of breakfast cereal containing particles of different sizes but similar densities, such as muesli mix. Under experimental conditions, granular convection of variously sized particles has been observed forming convection cells similar to fluid motion. <https://discuss.python.org/t/python-versions-3-10-8-3-9-15-3-8-15-3-7-15-no…>We hope you enjoy the new releases! 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. Your friendly release team, Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower> Pablo Galindo Salgado @pablogsal <https://discuss.python.org/u/pablogsal> Łukasz Langa @ambv <https://discuss.python.org/u/ambv>

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Two CPython committer/core dev promotion votes are ongoing
by Ken Jin 05 Oct '22

05 Oct '22

Dear CPython committer, In case you missed it, two core dev promotion votes are ongoing on Discourse. - Filipe Laíns: https://discuss.python.org/t/vote-to-promote-filipe-lains/19599 - Alex Waygood: https://discuss.python.org/t/vote-to-promote-alex-waygood/19690 Thanks for your time! -KJ

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python-committers October 2022