Typo of the day: fatetime
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Hugo van Kemenade
@hugovk@mastodon.social
mastodon 4.8.0-nightly.2026-10-06Python 3.14 & 3.15 release manager, core developer, Sovereign Tech Fellow, PSF Fellow, open-source maintainer, PEP editor, NaNoGenMo organiser, winter bicycler
1879 Followers
520 Following
50 Posts
Joined August 11, 2018
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Replying to
@bagder@mastodon.social @icing@chaos.social The #libexpat project is following the curl lead and have started today until 1st August.
https://github.com/libexpat/libexpat/issues/1277
Lots of new stuff in pip 26.2:
🍊 Support for Python 3.15
🍊 Selecting only dependencies
🍊 Experimental: venv based build isolation
🍊 Faster repeated resolves by caching index simple responses
🍊 No more progress bar spam in CI
🍊 Deprecation to remove the legacy dependency resolver (--use-deprecated=legacy-resolver)
See @ichard26@fosstodon.org's post for more!
https://sichard.ca/blog/2026/07/whats-new-in-pip-26.2/
#Python #pip
The day before feature freeze, the CPython team is busy reviewing last minute PRs, but today's latest #GitHub outage is eating review comments.
We are resorting to pasting screenshots of reviews around in PRs and DMs.
https://github.com/python/cpython/pull/148827/#issuecomment-4390256894
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🐍🚀 Out now: Python 3.15 release candidate 1!
Please test and report bugs!
We strongly encourage maintainers of to prepare their projects for 3.15 during this phase, and publish Python 3.15 wheels on PyPI to be ready for the final release of 3.15.0, and to help other projects do their own testing.
Any binary wheels built against Python 3.15.0 release candidates will work with future versions of Python 3.15.
https://discuss.python.org/t/python-3-15-0-release-candidate-1-is-here/108395?u=hugovk
#Python #Python315 #release
Hello from Kraków and the sun is shining for the #Python #LanguageSummit at #EuroPython!
Just as importantly!
After two years, it's now time to ceremoniously hand over the `main` branch to @savannah@fosstodon.org!
`main` is now accepting new features for Python 3.16, and I bet it's going to be even better than 3.15.
https://peps.python.org/pep-0826/
#Python #Python315 #Python316
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@hynek@mastodon.social
# Test Plan
I've architected a comprehensive, multi-phase roadmap to gracefully retire the CI ecosystem — streamlining our DevOps footprint, eliminating legacy pipeline debt, and empowering stakeholders to embrace a friction-free, verification-agnostic delivery model. This bold transformation reimagines quality assurance as a mindset rather than a workflow, delivering 100% reduction in failed builds. 🚀✨
How I fixed the dictionary with Python 3.14:
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🐍🚀 Out now: Python 3.15 beta 1!
🧊 This is the feature freeze, and now it's *your* turn to test out all the amazing things we've been baking for the past 12 months!
💤 Lazy imports!
🧊 frozendict builtin!
💂 sentinel builtin!
📉 Tachyon profiler!
🖼️ Frame pointers everywhere!
🧳 Unpacking in comprehensions!
8️⃣ UTF-8 default encoding!
🆕 Startup config files!
⌨️ Loadsa typing!
🎨 More colour!
https://discuss.python.org/t/python-3-15-0-beta-1-is-here/107231
Please report bugs, we'll fix for the big October release.
#Python #Python315 #release
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🐍🚀 Out now: the final 3.15 beta, live from the #EuroPython sprints!
All the same goodies as beta 3, plus the official macOS installer now also installs the free-threaded python3.15t binary.
And thanks to 3.16 RM @savannah@fosstodon.org for helping out!
https://discuss.python.org/t/python-3-15-0-beta-4-is-here/108208
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🐍🚀 Out now: Python 3.15 beta 3!
💤 Lazy imports!
🧊 frozendict builtin!
💂 sentinel builtin!
📉 Tachyon profiler!
🖼️ Frame pointers everywhere!
🛅 Unpacking in comprehensions!
🗣️ UTF-8 as the default encoding!
🆕 Package startup config files!
⌨️ TypedDict and TypeForm!
🐎 Faster JIT!
🎨 More colour!
🚌 & more!
Library maintainer? We *strongly encourage* you to add 3.15 to your CI and test during the beta. And send us those bugs reports!
https://discuss.python.org/t/python-3-15-0-beta-3-is-here/107866?u=hugovk
#Python #Python315 #CPython #release
Do not use pull_request_target.
Do not use caches in publish workflows.
Use dependency cooldowns.
Use Zizmor.
Tell GitHub to make Actions secure by default.
#GitHub #GitHubActions
The German translation of the Python docs is being restarted. Want to help out? Get in touch with Swen!
https://discuss.python.org/t/starting-work-on-the-german-documentation-translation-python-docs-de/108369
#Python #docs #translation #German
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🐍🚀 Out now: Python 3.15 beta 2!
Still all this good stuff:
💤 Lazy imports!
🧊 frozendict builtin!
💂 sentinel builtin!
📉 Tachyon profiler!
🖼️ Frame pointers everywhere!
🧳 Unpacking in comprehensions!
8️⃣ UTF-8 default encoding!
🆕 Startup config files!
⌨️ Loadsa typing!
🎨 More colour!
🚌 & more!
Library maintainer? Add 3.15 to your CI and keep those bug reports coming!
https://discuss.python.org/t/python-3-15-0-beta-2-is-here/107610
#Python315 #Python #release
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Out now: Python 3.14.6 and 3.13.14!
A day late to include a last-minute OpenSSL release in the installers. Thanks to @standupmaths@mathstodon.xyz for the help with the release notes :)
https://discuss.python.org/t/python-3-14-6-and-3-13-14-are-now-available/107714
#Python #CPython #Python314 #Python313 #release
🔒🐍 Coming soon, Python 3.15 release candidate 1! The 3.15 branch is now locked until 3.15.0 final in October.
https://discuss.python.org/t/the-3-15-branch-is-locked-for-rc1/108389
Also coming soon: Python 3.13.15 and 3.14.7.
https://hugovk.dev/next-release/#Python #Python315 #Python314 #Python314 #release
step 1: do an experimental JIT
step 2: do a website called https://www.doesjitgobrrr.com to track performance
step 3: write a PEP called "JIT Go Brrr"
step 4: non-experimental JIT gone brrr?
step 5: CPython gone brr?
step 6: brrr?
https://peps.python.org/pep-0836/
#Python #CPython #JIT #PEP #PEP836 #JIT #GoBrrr
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🐍🚀 Out now: pylast 7.1.0!
pylast is a Python interface to Last.fm and Libre.fm
🎹 Replace HTTPX with HTTPX2
🎶 Remove legacy Python 2 code
🪇 And five bug fixes
https://github.com/pylast/pylast/releases/tag/7.1.0
#Python #release #LastFM #LibreFM #scrobbler #pylast
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🐍🚀 Out now: Tablib 3.10.0
The format-agnostic tabular dataset library
🔒 Security fix to escape dataset title in HTML serialisation
🦥 Support for Python 3.15 with lazy imports
💧 Drop support for EOL Python 3.9
🩹 And a bunch of fixes
https://github.com/jazzband/tablib/releases/tag/v3.10.0
#Python #Tablib #release #security #Python315
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Out now: linkotron 0.7!
CLI to format links in a shorter format.
🖇️ Format regular links
🔗 Format GHSA links -- thanks @stanfromireland@mastodon.social!
🖇️ Add support for Python 3.15-3.16
🔗 Stop testing experimental 3.13t
Maybe one day I'll remember how to write reStructuredText links but now I don't need to:
❯ linkotron example.com --rst
Copied! `example.com `__
https://github.com/hugovk/linkotron/releases/tag/0.7.0
#Python #release #linkotron #CLI #reStructuredText
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🐍🚀 Out now: em-keyboard 5.4.0
An emoji search CLI.
Adds support for Python 3.15 and Unicode 17.0:
❯ em "distorted face" "fight cloud" "hairy creature" "ballet dancer" "orca" "landslide" "trombone" "treasure chest"
Copied! 🧑🩰
Your device might not support them yet 🫠
https://blog.emojipedia.org/whats-new-in-unicode-17-0/
#Python #release #em #emoji
The UK is voting in local elections today, so that means it's time for #DogsAtPollingStations and #BikesAtPollingStations.
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Python 3.14.5 release candidate is out now! Please test!
https://blog.python.org/2026/05/python-3145rc1/
Next up, 3.15 beta 1 tomorrow.
#Python #Python314 #Python315 #release
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🐍🚀 Out now: Python 3.14.5 final!
♻️ This now has the new (old) garbage collector, and the official macOS installer has been updated to use Tcl/Tk 9.0.3 instead of 8.6.17.
https://discuss.python.org/t/python-3-14-5-is-here-with-a-new-old-garbage-collector/107304
#Python #Python314 #release
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🐍🚀 Out now: flake8-implicit-str-concat 0.7.0
A Flake8 plugin to encourage string literal concatenation. It can help tidy up after Black/Ruff.
This release adds a new ISC004 rule: "unparenthesized implicit string concatenation in collection". See examples in the README.
Also support Python 3.15 and use PEP 639 licence expression and remove deprecated Trove classifier.
https://github.com/flake8-implicit-str-concat/flake8-implicit-str-concat/releases
#Python #release
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Release week update!
Also moving release 3/3 this week, 3.14.5 final, by a couple of days to give some more time for testing of the RC 🚀
https://discuss.python.org/t/python-3-14-5-release-candidate/107185/2
Current plan:
✅ 3.14.5rc1 on Monday 4nd (+2 days)
⬜ 3.15.0b1 on Thursday 7th (+2 days)
⬜ 3.14.5 final on Sunday 10th (+2 days)
#Python #release #Python314 #Python315
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Out now: PrettyTable 3.18!
Library to display tabular data in a visually appealing ASCII table format.
Lots of stuff here, including performance improvements, some thanks to improvements in wcwidth dependency.
Add support for:
Python 3.16
reStructuredText tables
multiline headers
captions in Markdown
And more!
https://github.com/prettytable/prettytable/releases/tag/3.18.0
#Python #release #PrettyTable
I've got my ticket, see you there!
#Python #EuroPython
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🐍🚀 Out now: Humanize 4.16!
Add Latvian language localization
Add i18n support for naturalsize() and French translation
Performance improvements: 1.07x - 8.4x
Lazy imports for Python 3.15+
Drop experimental Python 3.13 free-threaded
Refactor: simplify scientific() and extract _SUPERSCRIPT_MAP constant
And seven assorted bug fixes!
https://github.com/python-humanize/humanize/releases/tag/4.16.0
#Python #Humanize #release
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@pythonbynight@hachyderm.io @amcasari@hachyderm.io You never know when googly eyes will come in handy, here's #PyConUS 2023 :)
https://mastodon.social/@hugovk/110239504743679454
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🐍🚀 Out now: norwegianblue 0.25.0 & pypistats 1.14.0
CLIs to show end-of-life dates, and download stats for Python packages.
The pytablewriter dependency has been replaced with faster PrettyTable (HTML, reStructuredText, CSV/TSV output) and PyYAML (YAML), and use NumPy and pandas directly. Between 1.3x and 4.7x faster.
Replace logging with print for verbose CLI output, and defer some imports.
https://github.com/hugovk/norwegianblue/releases/tag/0.25.0
https://github.com/hugovk/pypistats/releases/tag/1.14.0
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@danielquinn@mastodon.social Looks like GitLab CI provides 50,000 minutes per month?
https://about.gitlab.com/solutions/open-source/
And Linux (x86-64, arm64), macOS (arm64), Windows (amd64).
https://docs.gitlab.com/ci/runners/hosted_runners/
We use 1.5 million minutes per month and also need macOS (Intel) and Windows (arm64 and win32).
Woodpecker CI is only linux/amd64 and "provided as-is and might break at any time and for an undefined period of time, due to server issues, for testing and maintenance purposes or human error."
https://docs.codeberg.org/ci/
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@valorzard@mastodon.gamedev.place Good question!
Core Dispatch @coredispatch@mastodon.social will likely include any big JIT news
https://coredispatch.xyz
And edition 1 included: https://blog.python.org/2026/03/jit-on-track/
Let's also ask @savannah@fosstodon.org
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@grant_h@mastodon.social @brass75@twit.social @stylus@social.afront.org Right, by all means open a new topic at https://discuss.python.org/c/ideas/6 about reviving it.
I suggest reviewing the previous python-ideas threads from 2021 first, and addressing any major concerns raised there.
The PEP is still in draft, so in theory could be revived, although in practice it may be better to write a fresh PEP. (Then again, PEP 661 was recently revived and just got merged for 3.15!)
The original author is active on Discourse so I expect he'll reply.
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@mahryekuh@hachyderm.io @anne@peekeend.nl @SonjaS@mastodon.art Also amazing as a layer when it's minus verycoldindeed. Thin, warm, breathable, not itchy.
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@ancoghlan @hynek @davidism Oh, we've had reports about scanners complaining about Pillow test images, ones we crafted especially to make sure our fix works.
Yes, we could delete the test image, but then we might break the fix and ship a vulnerability in real code!
Replying to
@davidism
PoC
Step 1: Attacker already has complete control over your system
Step 2: Attacker does something obscure with your software
Step 3: You're hacked
CVSSS urgent high severity 100
Except in many, many more words.
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@danielquinn@mastodon.social Thing is, we already have another 1.5 million of self-hosted minutes. Some of that CI is very slow and a bottleneck, so by default runs after merge: it's a pain when things then fail (especially on release day!). Unfortunately, I don't think it's feasible to double those queues.
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@valorzard@mastodon.gamedev.place @coredispatch@mastodon.social @savannah@fosstodon.org There's a few more JIT articles on Ken Jin's blog/
https://fidget-spinner.github.io
I hope to encourage more dev posts on https://blog.python.org now it's no longer powered by Blogger!
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@kura@hai.z0ne.social Thanks for the kind words and suggestions!
We use a lot of CI across many OS/architectures, and unfortunately Codeberg and GitLab's CI cannot support that. We already have a lot of donated self-hosted CI too, but I don't think that can scale.
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@danielquinn@mastodon.social Do you have some references/links to how they do it? What do they do for CI?
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@nojhan@social.antigene.org How is the CI on Codeberg? At least for self-hosted, I don't think we could provide enough compute.
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@nojhan@social.antigene.org 1.5 million minutes per month across Linux (x64 and arm64), macOS (arm64 and Intel) and Windows (x64, win32, arm64).
We need to support these tier 1 and 2 platforms, and tier 3 is a bonus:
https://peps.python.org/pep-0011/
Unfortunately https://docs.codeberg.org/ci/ says only linux/amd64 is available and:
"CI access is provided as-is and might break at any time and for an undefined period of time, due to server issues, for testing and maintenance purposes or human error."
