Hugo van Kemenade

Python 3.14 & 3.15 release manager, core developer, Sovereign Tech Fellow, PSF Fellow, open-source maintainer, PEP editor, NaNoGenMo organiser, winter bicycler

Blog: https://hugovk.dev
GitHub: https://github.com/hugovk

Public Key

npub1xvuu4dsa9acew5d5ua5jpfgr40uefgyheua7c45f62jmguks36wqzsjmp8

NIP-05 Address

hugovk_at_mastodon.social@momostr.pink

Profile Code

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Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1xvuu4dsa9acew5d5ua5jpfgr40uefgyheua7c45f62jmguks36wqzsjmp8

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Last Notes

2026-04-01 09:41:26 UTC

Please welcome Stan Ulbrych @npub1t07…kkgf as the newest member of the Python core team!
https://discuss.python.org/t/vote-to-promote-stan-ulbrych/106562
https://hugovk.github.io/python-core-team/by-year.html
https://fedidevs.com/s/Mzk/
#Python #CPython #CoreTeam

2026-02-06 21:48:28 UTC

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Nowadays it could be Go or Rust or any binary: https://discuss.python.org/t/use-of-pypi-as-a-generic-storage-platform-for-binaries/106044

2026-01-31 08:36:17 UTC

Hello #FOSDEM!
https://files.mastodon.social/media_attachments/files/115/988/791/323/244/688/original/1444baee51a4813e.jpg

2026-01-18 11:26:33 UTC

Black 26.1.0 is out.
For those who don't know, they use CalVer, and a new year means a new style with some formatting changes. So far they look good to me.
https://github.com/psf/black/releases/tag/26.1.0
#Python #Black #CalVer
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2026-01-05 13:52:32 UTC

Bit nippy out
#WinterCycling #BikeInHEL
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2025-12-21 07:58:28 UTC

Today is Volunteer Responsibility Amnesty Day
"Volunteer Responsibility Amnesty Day is about checking with yourself, and ending the commitments you need to end – maybe by taking a break, or by rotating it on to someone else, or by sunsetting a project."
https://volunteeramnestyday.net

2025-12-20 20:18:31 UTC

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Just released! 🚀
🤖 Humanize 4.15.0
This does stuff like turning a number into a fuzzy human-readable duration ("3 minutes ago")
https://github.com/python-humanize/humanize/releases/tag/4.15.0
* Add locale support for decimal separator in `intword`
* Add support for Python 3.15
* `naturaldelta`: round the value to nearest unit that makes sense
* Fix plural form for `intword` and improve performance
* Replace `Exception` with more specific `FileNotFoundError`
* Replace pre-commit with prek
#Python #release #Humanize

2025-12-19 20:18:47 UTC

"TL;DM (too long; didn't monitor) is a fast, extensible progress bar for Python, forked from tqdm. This fork was created to provide continued maintenance and development as the original tqdm project has become unmaintained."
https://github.com/eliotwrobson/tldm
#Python #TLDM #tqdm

2025-12-16 15:55:31 UTC

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Just released! 🚀
🐍 Python 3.15 alpha 3!
https://discuss.python.org/t/python-3-15-0-alpha-3/105325?u=hugovk
🔬 PEP 799: A new high-frequency statistical sampling profiler and dedicated profiling package
💬 PEP 686: Python now uses UTF-8 as the default encoding
🌊 PEP 782: A new PyBytesWriter C API to create a Python bytes object
🎨 Colour code snippets in argparse help: https://bsky.app/profile/savannah.dev/post/3m7svdqdeqs2x
⚠️ Better error messages
#Python #Python315 #CPython #release #PEP799 #PEP686 #PEP782 #argparse

2025-12-13 14:13:21 UTC

Congratulations to the new Python Steering Council!
🗳️ Barry Warsaw @npub12v0…jnqh (6th term)
🗳️ Donghee Na @npub1afl…0j2j (2nd)
🗳️ Pablo Galindo Salgado (6th)
🗳️ Savannah Ostrowski @npub1txp…jlz3 (1st)
🗳️ Thomas Wouters @npub1yjq…me58 (6th)
https://discuss.python.org/t/steering-council-election-results-2026-term/105296
Welcome @npub1txp…jlz3 for the first time and thank you to @npub17ds…vsrt for your four years' service!
Fun fact: four members have been or are release managers 🚀
https://hugovk.dev/blog/2025/steering-council-election/
#Python #SteeringCouncil #PythonSteeringCouncil
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2025-12-10 16:54:06 UTC

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Just released! 🚀
Python Docs Sphinx Theme
This is the theme for the Python documentation (and others)
* Add support for green, red and yellow side borders for code examples
* Add Portuguese translation
* Add support for Python 3.15
https://github.com/python/python-docs-theme/releases/tag/2025.12
#Python #docs #theme #Sphinx #release
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2025-12-05 20:56:52 UTC

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Just released! 🚀🐍
Python 3.14.2 (and 3.13.11)
Waiting for the .2 to upgrade? This one's especially for you!
So soon? We found some regressions, so here’s an expedited pair of releases. They also come with bonus security fixes.
https://discuss.python.org/t/python-3-14-2-and-3-13-11-are-now-available/105214?u=hugovk
#Python #CPython #Python314 #Python313 #release
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2025-12-02 16:58:36 UTC

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Just released! 🚀🐍
Python 3.14.1
Waiting for the .1 to upgrade? This one's especially for you!
🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!
https://discuss.python.org/t/python-3-14-1-is-now-available/105163
#Python #CPython #Python314 #release
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2025-11-23 16:54:47 UTC

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Just released! 🚀
🎶 pylast 7.0.0
🎤 A #Python interface to @npub148n…jpmz and Libre.fm
🗑️ Remove `SCROBBLE_SOURCE_*` and `SCROBBLE_MODE_*` constants. Last used in 2017, you probably weren't using them
📻 Add `chosen_by_user` parameter to `scrobble`. Set to false if you don't have "direct" control over the source, like radio or a stream.
🐍 Add support for Python 3.15
📼 Test against recorded API instead of live
🦀 Replace pre-commit with prek
Thanks to @npub15pc…hvce!
https://github.com/pylast/pylast/releases/tag/7.0.0
#release #LastFM

2025-11-22 09:30:30 UTC

Hej allihopa!
"Välkommen till Python! Detta är den officiella dokumentationen för Python 3.14.0."
https://docs.python.org/sv/3/
The Python docs are now available in Swedish! Thanks to Daniel Nylander!
To help with translations of any language, see https://devguide.python.org/documentation/translations/
#Python #docs #Swedish

2025-11-21 18:30:22 UTC

I've updated the https://www.python.org/downloads/ page:
Added download links to the active Python versions table. Before, you had to hunt for the one you wanted in the table below.
They're redirect links, so, for example, https://www.python.org/downloads/latest/python3.15/ goes to https://www.python.org/downloads/release/python-3150a2/ and https://www.python.org/downloads/latest/python3.13/ goes to https://www.python.org/downloads/release/python-3139/
Could be handy for your docs, if you want to point people to the latest, say, 3.12.
#Python
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2025-11-19 11:06:36 UTC

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Just released! 🚀
After one sequential-only CI failure, two artifacts builds, one GitHub outage, two fixes for the Windows installer build, four Windows builds, and a NuGet outage:
🐍 Python 3.15 alpha 2!
🔬 PEP 799: A new high-frequency statistical sampling profiler
💬 PEP 686: Python now uses UTF-8 as the default encoding
🌊 PEP 782: A new PyBytesWriter C API to create a Python bytes object
⚠️ Better error messages
https://discuss.python.org/t/python-3-15-0a2/104948?u=hugovk
#Python #Python315 #CPython #release #PEP799 #PEP686

2025-11-16 09:53:51 UTC

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Michael Foord has been posthumously recognised as an Honorary @npub1rwp…psqf Society Fellow:
https://www.europython-society.org/recognising-michael-foord-as-an-honorary-europython-society-fellow/
#EuroPython #Python

2025-11-14 17:39:54 UTC

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Just released! 🚀
🪑 PrettyTable 3.17.0
https://github.com/prettytable/prettytable/releases/tag/3.17.0
Add support for Python 3.15, drop 3.9, test 3.13t-3.15t
Set dicts with column-specific config for all column-specific attrs
Update type hints
Replace pre-commit with prek
& more!
#Python #release #PrettyTable #Python315 #Python39

2025-11-03 14:16:52 UTC

I wrote a bit about what went on at the recent Python Core Sprint at #Arm in Cambridge, plus some bonus @npub1chh…h4a7 highlights.
https://hugovk.dev/blog/2025/python-core-sprint/
#Python #CoreSprint #PyConUK

2025-10-27 20:33:12 UTC

Nathan Goldbaum is part of the Quansight Labs team that's been doing a *huge* amount of work getting the ecosystem ready for free-threaded Python.
Here he shares some of his favourite resources to learn about free-threaded Python:
https://github.com/ilanschnell/bitarray/pull/245#issuecomment-3452970622
#FreeThreaded #Python #FreeThreadedPython

2025-10-26 12:45:00 UTC

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Just released! 🚀
🎨 termcolor 3.2.0
https://github.com/termcolor/termcolor/releases/tag/3.2.0
🟣 Expose `can_colorize` as public API
🟢 Add support for Python 3.15 (🥉 at https://pyreadiness.org/3.15/)
🔴 Drop support for EOLish Python 3.9
#Python #release #termcolor #Python315 #Python39

2025-10-24 15:51:56 UTC

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Just released! 🚀
📜 Python Docs Sphinx Theme, with added Arabic, French, Romanian and Russian translations.
https://github.com/python/python-docs-theme/releases/tag/2025.10
#Python #release #PythonDocsSphinxTheme #Sphinx #theme #translations

2025-10-23 18:30:25 UTC

Let's all give a shout out (and a follow) to the new @npub1vv8…6fhk Fellows!
https://pyfound.blogspot.com/2025/10/announcing-python-software-foundation.html
Thank you for all you do for us! 🥂
🎉 Abhijeet Mote
🎉 Abigail Afi Gbadago
🎉 Becky Smith @npub180r…u4h7
🎉 Christopher Bailey @npub1r2a…wq68
🎉 Dawn Wages @npub1f0f…fwqc
🎉 Leah Wasser @npub1y4x…r93e
🎉 Maaya Ishida
🎉 Mason Egger @npub1kf4…lm2d
🎉 Miguel Grinberg @npub1twt…w4mn
🎉 William Vincent @npub1mjx…httg
https://fosstodon.org/@ThePSF/115418574313245306
#Python #PSF #PSFFellows

2025-10-17 10:57:27 UTC

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and @npub1ny4…gwxz Lego kits in the goody bag!
#Plone #Python #PloneConf #PyConFI #PyConFinland
https://files.mastodon.social/media_attachments/files/115/389/139/895/173/116/original/a2d7ef89a5a86937.jpg

2025-10-17 07:14:38 UTC

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Beautiful crisp, sunny morning for PyCon Finland!
#PyConFI #PyConFinland #Jyväskylä #Python
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2025-10-16 15:12:42 UTC

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Those snakes are from the Hiekka Art Museum, as was this typewriter with separate uppercase and lowercase keys, and art deco furniture by Eliel Saarinen and Armas Lindgren.
Also went to the Tampere Art Museum, didn't take photos but the Man Yau exhibition was good.
#Tampere #Saarinen #Lindgren #artdeco
https://files.mastodon.social/media_attachments/files/115/384/458/755/763/013/original/260d3f883502c94e.jpg
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2025-10-16 15:02:52 UTC

Northward bound on the train to Jyväskylä for 🇫🇮 PyCon Finland!
Stopped off at Tampere to visit some art museums and saw some other snake things.
#PyConFI #PyConFinland #Tampere #snake #sculpture #art #lake
https://files.mastodon.social/media_attachments/files/115/384/424/795/147/167/original/666ce89c9e6dea46.jpg
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2025-10-15 19:48:18 UTC

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Just released! 🚀🚀🚀🚀🚀
Pillow 12.0.0
https://fosstodon.org/@pillow/115379893139846791
norwegianblue 0.23.0
https://github.com/hugovk/norwegianblue/releases/tag/0.23.0
pypinfo 23.0.0
https://github.com/ofek/pypinfo/blob/master/CHANGELOG.rst#2300
Humanize 4.14.0
https://github.com/python-humanize/humanize/releases/tag/4.14.0
Tablib 3.9.0
https://github.com/jazzband/tablib/releases/tag/v3.9.0
#Python #release #Pillow #pypinfo #Humanize #norwegianblue #Tablib

2025-10-14 16:06:58 UTC

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Forget* about Python 3.14, all the cool kids are trying out Python 3.15.0 alpha 1 (but not on production)! 🚀
🔬 PEP 799: A dedicated profiling package for Python profiling tools
💬 PEP 686: Python now uses UTF-8 as the default encoding
🌊 PEP 782: A new PyBytesWriter C API to create a Python bytes object
⚠️ Better error messages
https://discuss.python.org/t/python-3-15-alpha-1/104358?u=hugovk
* Please don't forget about 3.14...
#Python #Python315 #release #PEP799 #PEP686 #PEP782

2025-10-14 16:01:37 UTC

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Filling a gap, this happened:
https://mastodon.social/@hugovk/115333348041057866
#note1480…79l8

2025-10-09 21:13:01 UTC

We released Python 3.9, 3.10, 3.11, 3.12, 3.13 and 3.14 this week but I'm sorry you're going to have to wait until next week for 3.15.
https://discuss.python.org/t/python-3-12-12-3-11-14-3-10-19-and-3-9-24-are-now-available/104273
https://discuss.python.org/t/3-13-8-has-been-released/104211
https://discuss.python.org/t/python-3-14-0-final-is-here/104210
https://peps.python.org/pep-0790/
#Python
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2025-10-07 14:27:09 UTC

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🚀 It's out!
🥧 Please install and enjoy Python 3.14!
https://discuss.python.org/t/python-3-14-0-final-is-here/104210?u=hugovk
#Python #Python314 #release
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2025-10-07 14:02:04 UTC

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macOS installer done, next on the final publishing and announcing steps.
#Python #Python314 #release
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2025-10-07 12:36:22 UTC

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The Windows build is ready and macOS is underway.
#Python #Python314 #release
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2025-10-07 10:50:32 UTC

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The Windows build has been started.
The jobs with profile-guided optimisation (PGO) build once, then collect a profile by running the tests, and then build again using that profile, to see how "real" code executes and optimises for that.
https://dev.azure.com/Python/cpython/_build/results?buildId=164907&view=results
Meanwhile, the docs+source+Android build has finished and the artifacts have been copied to where they need to go with SBOMs created.
#Python #Python314 #release
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2025-10-07 09:52:14 UTC

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(That's actually the second CI attempt, we had to update some script arguments following an Android test runner update.)
This build takes about half an hour.
I've also informed the Windows and macOS release managers about the tag and they will start up installer builds.
This takes a few hours, so I've got time to finish up the release notes.
PEP 101 is the full process, but much is automated and we don't need to follow it all manually.
https://peps.python.org/pep-0101/
#Python #Python314 #release

2025-10-07 09:43:55 UTC

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Next up, merge and backport the final change to What's New in Python 3.14 to declare it latest stable.
https://github.com/python/cpython/pull/139631
Now start run_release.py, the main release automation script, which does a bunch of pre-checks, runs blurb to create a merged changelog, bumps some numbers, and pushes a branch and tag to my fork. It'll go upstream at the end of a successful build.
Then kick off the CI to build source zips, docs and Android binaries.
https://github.com/python/release-tools/actions/runs/18308460797
#Python #Python314 #release
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2025-10-07 08:40:46 UTC

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Release day!
First off, check blockers and buildbots.
A new release-blocker appeared yesterday (because of course) but it can wait until 3.14.1.
https://github.com/python/cpython/labels/release-blocker
Three deferred-blockers are also waiting until 3.14.1.
https://github.com/python/cpython/labels/deferred-blocker
A new tier-2 buildbot failure appeared yesterday (because of course) but it had previously been offline for a month and will need some reconfiguration. Can ignore.
https://buildbot.python.org/#/release_status
OK, let's make a Python!
#Python #Python314 #release

2025-10-06 11:21:30 UTC

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Just released! 🚀
flake8-implicit-str-concat 0.6.0
A Flake8 plugin to identify those unjoined strings that a first Black run leaves behind:
"111111111111111111111" "222222222222222222222"
I hear there's another big release tomorrow? This release adds support for Python 3.14 and for once code changes were needed due to AST deprecation removals.
Also drop support for almost-very-nearly-EOL Python 3.9.
https://github.com/flake8-implicit-str-concat/flake8-implicit-str-concat/releases/tag/0.6.0
#Python #flake8 #release #Python314 #Python39

2025-10-05 13:58:15 UTC

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And back to green!
#Python #Python314
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2025-10-04 13:15:26 UTC

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Three days until release and a bug in the Linux kernel has turned a dozen buildbots red...
It's already been fixed in the kernel, but will take some time to bubble up. We'll skip that test for relevant kernel versions in the meantime.
https://buildbot.python.org/#/release_status
#Python #Python314
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2025-10-01 14:05:38 UTC

On the boat to Tallinn for PyCon Estonia!
#Python #PyCon #PyConEE #PyconEstonia #Tallinn #ferry
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2025-09-30 12:19:29 UTC

Only one week left until the release of Python 3.14.0 final!
https://docs.python.org/3.14/whatsnew/3.14.html
https://peps.python.org/pep-0745/
What are you looking forward to?
#Python #Python314

2025-09-29 13:06:12 UTC

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Just released! 🚀
em-keyboard 5.3.0
🎲 Pick a random emoji from a search. For example:
❯ em --search music --random
Copied! 👩‍🎤 woman_singer
🧛‍♂️ Drop support for Python 3.9
https://github.com/hugovk/em-keyboard/releases/tag/v5.3.0
#Python #EmKeyboard #em #CLI #release #emoji

2025-09-29 13:02:06 UTC

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Just released! 🚀
🎶 pylast 6.0.0
🎤 A Python interface to Last.fm and Libre.fm
📯 Restore proxy support (potential breaking change: proxies are now always stored as a dict, before it was a str or dict)
🪇 Drop support for almost-EOL Python 3.9
https://github.com/pylast/pylast/releases/tag/6.0.0
#Python #pylast #LastFM #LibreFM #release #Python39

2025-09-18 18:17:34 UTC

I opened a PR for a project in January 2024 to drop support Python 2.7 and 3.5 and it's just been merged! 🎉
#Python #Python27

2025-09-18 14:21:56 UTC

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Just released: Python 3.14.0 release candidate 3! 🚀🐍
🪄 Finally, the final release candidate
🪄 We fixed *another* bug that required the ".pyc magic number" to be increased
🪄 The ABI isn't changing, and wheels built for rc1 and rc2 should still work
👤 This was the first release @npub1txp…jlz3 shadowed!
🏆 Please test and report bugs!
https://discuss.python.org/t/python-3-14-0rc3-is-go/103815?u=hugovk
#Python #CPython #Python314 #release

2025-09-17 15:01:19 UTC

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Just released: Python Docs Sphinx Theme 2025.9.2! 🚀
Add German, Korean and Indonesian translations
Fix html page translation
Fix Copy button copying line numbers
Fix search button cutting off long translations
https://github.com/python/python-docs-theme/releases/tag/2025.9.2
#Python #docs #Sphinx #PythonDocsTheme #PythonDocsSphinxTheme

2025-09-16 09:42:15 UTC

🐍🏃‍➡️ We kicked off the first day of the #Python #CoreSprint at #Arm in #Cambridge with lots of talks and lots of discussion about talks!
Ken Jin - Building a JIT Community AND Demo [effect] of new C API
@npub1nyw…ydr2 - Tracing JITs on real code
@npub139g…cwvw - WASI update AND precompiled binaries from python.org
Hood Chatham - Upstreaming Pyodide FFI
@npub1gfx…gnlz - Managing cross-platform wheel builds
Steering Council - PEP 793 and abi3/abi3t/abi4
Matthew Parkinson - Designing Deep Immutability
https://files.mastodon.social/media_attachments/files/115/213/314/728/010/341/original/24a91f1d9d70ac61.jpg
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2025-09-10 07:05:03 UTC

NumPy are considering dropping Intel x86-64 wheels:
https://mail.python.org/archives/list/numpy-discussion@python.org/thread/OLNBDCRVVGXIXG5G3RUQDHEIYDHYV2DO/
#Python #NumPy #macOS #wheels #GitHubActions

2025-09-08 19:48:34 UTC

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(Just released: Python Docs Sphinx Theme 2025.9.1. Yes, I forgot something in 2025.9... Carry on!)

2025-09-08 18:20:11 UTC

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Just released: Python Docs Sphinx Theme 2025.9! 🚀
This enables translations of the theme and adds translations for:
Brazilian Portuguese
Greek
Japanese
Polish
Simplified Chinese
Spanish
Swedish
Traditional Chinese
Turkish
Thanks to all our translators!
https://github.com/python/python-docs-theme/releases/tag/2025.9
#Python #docs #Sphinx #PythonDocsTheme #PythonDocsSphinxTheme

2025-08-28 07:51:01 UTC

Helsinki airport tips:
If getting the I train from the city, get on the last carriage to optimise exit (I think second from last doors are usually best).
Take the first escalator up from the platform, then after the short tunnel walk, take the lift as it's faster than the big escalators.
The Alepa grocery store before security has lots of sandwiches and pastries.
Turn left immediately after security for a water tap to fill your empty bottle.
#Helsinki #airport #tips #HEL
https://files.mastodon.social/media_attachments/files/115/105/293/024/964/771/original/5553430c7ef949a4.jpg

2025-08-25 09:44:27 UTC

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Just released: humanize 4.13.0! 🚀
🤖 Optimise `naturalsize` algorithm by using `math.log`
🤖 Fix `precisedelta` rounding
https://github.com/python-humanize/humanize/releases/tag/4.13.0
#Python #humanize #release

2025-08-22 20:24:45 UTC

https://pypistats.org is back online! 🚀📈
Thanks to @npub1v2x…87tf for suggesting the @npub1vv8…6fhk takes stewardship and connecting the right people, to @npub1mk0…hk6e for migrating, and of course to Christopher Flynn for creating and running it for all these years!
https://github.com/psf/pypistats.org
#Python #PyPI #pypistats #stats

2025-08-21 12:57:45 UTC

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Just released: OSMViz 4.5.0! 🚀
An OpenStreetMap visualization toolkit for Python
🥧 Support for Python 3.14
🪪 Replace deprecated classifier with licence expression (PEP 639)
🔍 Remove GitHub attestation, PyPI attestation is enough
https://pypi.org/project/osmviz/
#Python #release #OpenStreetMap #OSMViz #PEP639

2025-08-21 12:14:16 UTC

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Just released: Cherry Picker 2.6.0! 🚀
🌸 Fix bug when local branch does not exist (thanks, @npub1dcm…82xf!)
🌸 Use PEP 639 licence expression and remove deprecated Trove classifier
htps://github.com/python/cherry-picker/releases/tag/cherry-picker-v2.6.0
#Python #release #CherryPicker

2025-08-20 11:48:01 UTC

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Just released: UltraJSON 5.11.0! 🚀
⌨️ Inline type stubs
🐍 Support for Python 3.14 & PyPy3.11
🛞 Windows ARM64 wheels (thanks @npub1ax0…s2y2!)
💧Drop EOL Python 3.8 & PyPy3.8-PyPy3.10
➕ And more!
https://github.com/ultrajson/ultrajson/releases/tag/5.11.0
#Python #release #ujson #UltraJSON

2025-08-17 07:33:14 UTC

Didn't win a Hugo Award...

2025-08-16 14:04:19 UTC

What's New in Python 3.14:
"The import time for several standard library modules has been improved, including annotationlib, ast, asyncio, base64, cmd, csv, gettext, importlib.util, locale, mimetypes, optparse, pickle, pprint, pstats, shlex, socket, string, subprocess, threading, tomllib, types, and zipfile."
https://docs.python.org/3.14/whatsnew/3.14.html#optimizations
#Python #Python314 #WhatsNew

2025-08-14 19:49:22 UTC

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Just released: Python 3.14.0 release candidate 2! 🚀🐍
🪄 This was planned for 2025-08-26, but we fixed a bug that required bumping the magic number stored in bytecode (.pyc) files
🪄 This means .pyc files created for rc1 will be recompiled for rc2
🪄 The ABI isn’t changing
🪄 Wheels built for rc1 should be fine for rc2, rc3 and 3.14.x
🤖 Did I mention Android binaries?
🏆 Bonus: We also released an early Python 3.13.7!
https://discuss.python.org/t/python-3-14-0rc2-and-3-13-7-are-go/102403
#Python #CPython #Python314 #Python313 #release

2025-08-12 21:18:40 UTC

Python 3.14:
We'll make the next release candidate (rc2) this Thursday, two weeks early, and add a rc3 on 2025-09-16.
We fixed a code generation bug that required the "magic number" to be increased for rc2. This means .pyc files compiled by rc1 can't be used in rc2 and will be recompiled.
The ABI isn't changing, and wheels built for rc1 should still work for rc2, rc3 and 3.14.x, but it's better to get this out for testing sooner.
https://discuss.python.org/t/early-3-14-0-rc2-and-extra-rc3/102151
#Python #CPython #Python314 #release

2025-08-11 11:13:05 UTC

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Same "Thank you for your interest in this GitHub repo, however, right now we are not taking contributions" note on another 7 #GitHubActions repos:
https://github.com/actions/checkout#note
https://github.com/actions/upload-artifact#note
https://github.com/actions/download-artifact#note
https://github.com/actions/runner#note
https://github.com/actions/starter-workflows#note
https://github.com/actions/toolkit#note
https://github.com/actions/languageservices#note
And pending/forgotten on a couple more, including an immutable actions one:
https://github.com/actions/publish-immutable-action/pull/224
https://github.com/actions/action-versions/pull/92
#GitHub #StrategicAreas #AllocatingResourcesElsewhere

2025-08-07 12:56:57 UTC

Odd note added to the #GitHubActions cache repo:
https://github.com/actions/cache#note
"Thank you for your interest in this GitHub repo, however, right now we are not taking contributions.
"We continue to focus our resources on strategic areas that help our customers be successful while making developers' lives easier. While GitHub Actions remains a key part of this vision, we are allocating resources towards other areas of Actions and are not taking contributions to this repository at this time."
#GitHub

2025-08-07 08:14:49 UTC

Python 3.13.6 has been released:
"Python 3.13 is the newest major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. 3.13.6 is the sixth maintenance release of 3.13, containing around 200 bugfixes, build improvements and documentation changes since 3.13.5."
https://discuss.python.org/t/python-3-13-6-has-been-released/101482
#Python313 #Python #CPython #release

2025-08-04 11:42:48 UTC

Oh, it was just PIL's 30th birthday! And @npub1tf2…92n4's 15th!
🎂🎈🥂 🍾 🎉
The Python Imaging Library (PIL) was created on 1995-06-15:
https://mail.python.org/pipermail/image-sig/2005-June/003377.html
And Pillow was forked on 2010-07-31:
https://mail.python.org/pipermail/image-sig/2010-July/006423.html
Happy birthday PIL and Pillow! 🎈
cc @npub1puv…lxnr @npub1y7h…6het

2025-07-26 06:46:29 UTC

🔴 Live now!
@npub1pdm…dwak Charity Talks
https://www.youtube.com/watch?v=LhCFFMuGtJQ
Timetable:
https://www.linkedin.com/posts/python-asia-organization-mtu_pythonasiacharitytalks2025-pythonasia-pythonasiaorg-activity-7353242411944300544-tqkV
Timetable time:
https://time.is/UTC+8
#PythonAsia #AsiaPython #FOSS #python #PyCon

2025-07-25 20:45:12 UTC

I'm very happy to announce @npub1txp…jlz3 as the Release Manager for Python 3.16 and 3.17!
https://discuss.python.org/t/welcome-the-3-16-and-3-17-release-manager-savannah-bailey/100163
#Python #CPython #Python316 #Python317

2025-07-24 11:58:13 UTC

Upcoming change to GitHub Actions: macos-latest will move from the macOS 14 image to macOS 15.
There's a slight change in tooling, if stuff fails, you can pin to macos-14.
More interestingly, the macos-13 image will be retired between 1st September and 14th November.
Notably, macos-13 is Intel, and macos-14 and 15 are Apple silicon.
https://github.blog/changelog/2025-07-11-upcoming-changes-to-macos-hosted-runners-macos-latest-migration-and-xcode-support-policy-updates/
#GitHub #GitHubActions #CI #macOS #AppleSilicon #Intel

2025-07-22 20:02:10 UTC

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Well, that took a while, partly because the RC is the first time the docs are included in the release.
The plain text build failed due to some Sphinx csv-table bug, needing a quick docs rewrite to use list-table (thanks, Adam Turner!) and a fresh start.
This actually broke back in April but we didn't notice. More CI needed!
Enjoy the plain text docs!

2025-07-22 19:30:23 UTC

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Just released: Python 3.14.0 release candidate 1! 🚀🐍
🫖 T-strings!
🧵 Free-threading is officially supported!
🚇 Subinterpreters in the stdlib!
🗜️ Zstandard compression!
🎨 REPL syntax highlighting and tab autocomplete!
⚠️ Better error messages!
📦 Are you a package maintainer? Prepare for 3.14 and report bugs!
🛞 No ABI changes: upload 3.14 wheels to PyPI
🥧 And much, much more!
https://discuss.python.org/t/python-3-14-release-candidate-1-is-go/99754?u=hugovk
#Python #CPython #Python314 #release

2025-07-22 13:59:36 UTC

🥧🪵🔒 The branch is locked and first release candidate of Python 3.14 is being built!
https://discuss.python.org/t/the-3-14-branch-is-locked-for-rc1/99720
#Python #Python314 #release #ReleaseCandidate #RC1

2025-07-21 12:53:36 UTC

Thanks to everyone for taking part in the #CPython sprint at #EuroPython2025!
Across all CPython repos this weekend:
* 122 PRs created (69 the previous weekend)
* 79 PRs merged (65)
* countless invaluable in-person discussions (a few?)
#EuroPython #Python #sprint #Prague
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2025-07-18 18:52:49 UTC

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Michael Foord's reserved seat at #EuroPython2025 #EuroPython
https://files.mastodon.social/media_attachments/files/114/875/743/847/129/054/original/ceddb8ccdd4f943d.jpg

2025-07-18 10:48:28 UTC

At #EuroPython2025, a seat has been reserved for the late Michael Foord.
To help remember his wisdom, I've made @npub1nld…8rvk to share his best practices for software development and testing. Follow and learn!
#EuroPython
https://files.mastodon.social/media_attachments/files/114/873/830/508/670/594/original/1d401607c60953ee.jpg

2025-07-15 09:28:37 UTC

Goodbye Helsinki! Hello Prague!
#EuroPython #EuroPython2025
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2025-07-08 14:55:31 UTC

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Just released: Python 3.14.0 beta 4! 🚀🐍
🥧 Last beta!
🥧 Do you maintain a Python package? Please test and report bugs!
🥧 This includes creating pre-release wheels for 3.14, as it helps other projects to do their own testing.
https://discuss.python.org/t/python-3-14-0-beta-4-is-here/98092/1?u=hugovk
#Python #CPython #Python314 #release

2025-07-08 14:50:33 UTC

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Just released: linkotron 0.6.0!
🔗 Adds OSC 8 formatting so you can do make those clickable links in terminal emulators.
https://pypi.org/project/linkotron/
#Python #release #linkotron

2025-07-01 20:36:10 UTC

Finnish summer nights.
https://files.mastodon.social/media_attachments/files/114/779/885/183/493/364/original/6515f7aa7f85b743.jpg

2025-06-26 13:53:04 UTC

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I'll also be there :)

2025-06-17 19:29:16 UTC

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Just released: Python 3.14.0 beta 3! 🚀🐍
🥧 All the good stuff of b2 but also:
🥧 Free-threaded Python is officially supported! (PEP 779)
🥧 Subinterpreters in the stdlib! (PEP 734)
Do you maintain a Python package? Please test 3.14.
If you find a bug now, we can fix it before October, which helps everyone. And you might find some places in your code to update as well, which helps you.
https://discuss.python.org/t/python-3-14-0-beta-3-is-here/95843?u=hugovk
#Python #CPython #Python314 #release #PEP779 #PEP734 #FreeThreaded #subinterpreters

2025-06-05 20:51:11 UTC

A special late acceptance for Python 3.14:
@npub18n9…3t50's PEP 734: Multiple Interpreters in the Stdlib 🚀
https://discuss.python.org/t/pep-734-multiple-interpreters-in-the-stdlib/41147/36
#Python #PEP734 #subinterpreters #Python314

2025-05-30 12:56:51 UTC

@npub1nyw…ydr2 Here's your SPy-powered @npub1fpr…duun Italia selfie!
#PyConItalia2025 #PyConIT #PyConItalia2025 #PyConIT2025 #PyCon #Python #SPy
https://files.mastodon.social/media_attachments/files/114/596/883/601/926/210/original/b03378c5c263519f.jpg

2025-05-26 19:47:21 UTC

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Just released: Python 3.14.0 beta 2! 🚀🐍
🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!
Do you maintain a Python package? Please test 3.14. If you find a bug now, we can fix it before October, which helps everyone. And you might find some places in your code to update as well, which helps you.
https://discuss.python.org/t/python-3-14-0-beta-2-is-here/93396?u=hugovk
#Python #CPython #Python314 #release

2025-05-22 17:28:20 UTC

Did you go to #PyConUS? Which talks were your highlights?
It isn't even over yet (it's the last day of the sprints) and already the first batch of videos are up!
https://www.youtube.com/c/pyconus
Drop a reply with couple of talk recommendations! ⤵️
#Python

2025-05-14 16:07:59 UTC

FEPs, SLEPs, APEs, AIPs, PEEPs, CEPs, SKIPs, SPECs, TIPs, CFEPs, NEPs, JEPs, BIPs, DEPs, DEPs, KEPs, JEPs, WEPs, IPEPs...
A lot of projects name proposals after PEPs rather than RFCs.
What are they? Where did PEPs come from? Here's @npub1mua…snqv on the origin!
https://hugovk.dev/blog/2025/peps-and-co/
#Python #PEP #RFC #etymology #history #blog

2025-05-09 15:33:21 UTC

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Just released! 🚀
Enabled colour help for Python 3.14:
🎨 em-keyboard 5.2.0
🎨 linkotron 0.5.0
🎨 norwegianblue 0.22.0
🎨 pepotron 1.5.0
🎨 pypistats 1.10.0
Also added Python 3.15 to pepotron: `pep 3.15` opens PEP 790.
#release #python314 #colour #CLI #EmKeyboard #linkotron #norwegianblue #pepotron #pypistats #help
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2025-05-07 17:12:57 UTC

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Just released: Python 3.14.0 beta 1! 🚀🐍
🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!
https://discuss.python.org/t/python-3-14-0-beta-1-is-here/91117?u=hugovk
#Python #CPython #Python314 #release

2025-04-30 12:44:30 UTC

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🙈 https://www.youtube.com/watch?v=2cxSP90gj8c [Vappu is May Day]
Just released! 🚀🚀🚀🚀
termcolor 3.1.0
Add true colour, cache system lookups
https://github.com/termcolor/termcolor/releases/tag/3.1.0
em-keyboard 5.1.0
Add Emoji 16.0: 🫩 🫆 🪾 🫜 🪉 🪏 🫟 🇨🇶
https://github.com/hugovk/em-keyboard/releases/tag/v5.1.0
Humanize 4.12.3
Fix regression in naturalsize, improve French translation
https://github.com/python-humanize/humanize/releases/tag/4.12.3
Python Docs Theme 2025.4.1
Fix copy button with multiple tracebacks
https://github.com/python/python-docs-theme/releases/tag/2025.4.1
#Python #release #termcolor #humanize #Sphinx #theme #EmKeyboard #PythonDocsTheme

2025-04-29 13:59:25 UTC

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Just released: Python Docs Theme 2025.4 🚀
📚 Require Sphinx 7.3
📚 Add support for Python 3.14
📚 Drop support for Python 3.10-3.11
📚 Copy button for code samples
📚 PEP 639 licence metadata
📚 and more!
https://github.com/python/python-docs-theme/releases
Thanks to Tomas Roun for the copy button! Demo:
https://docs.python.org/3.14/whatsnew/3.14.html#pep-758-allow-except-and-except-expressions-without-parentheses
#Python #Sphinx #release #docs

2025-04-23 09:11:51 UTC

EuroPython returns to Prague this July and is looking for a new home for 2026 and beyond. Can your community help?
https://www.europython-society.org/call-for-europython-2026-host-venues/
#Python #EuroPython #conference #PyCon

2025-04-12 18:29:07 UTC

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Just released: Pillow 11.2.1 🚀
There was meant to be a 11.2.0 on 1st April, but we put too much good stuff in the wheels and hit the @pypi.org project limit before it could all be uploaded. That was yanked and now deleted and 11.2.1 is back to normal size.
We'll try and put the good stuff back for 11.3.0 on 1st July but take up less space.
https://fosstodon.org/@pillow/114326381451398723
#Python #release #Pillow

2025-04-08 19:04:40 UTC

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Just released: Python 3.14.0a7 🚀
Just released: Python 3.13.3 🚀🚀
Just released: Python 3.12.10 🚀🚀🚀
Just released: Python 3.11.12 🚀🚀🚀🚀
Just released: Python 3.10.17 🚀🚀🚀🚀🚀
Just released: Python 3.9.22 🚀🚀🚀🚀🚀🚀
Last 3.14 alpha! Less than a month to get new features in before beta!
Last 3.12 bugfix release! Now in security fix only!
And security releases of 3.9-3.11.
Please upgrade 3.9-3.13!
Please test 3.14!
https://discuss.python.org/t/python-3-14-0a7-3-13-3-3-12-10-3-11-12-3-10-17-and-3-9-22-are-now-available/87580
#Python #CPython #release #Python314 #Python313 #PythonEtc
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2025-03-31 13:08:59 UTC

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Just released: termcolor 3.0.0 🚀
ANSI colour formatting for the terminal.
🎨 Add support for Python 3.14
🎨 Only apply FORCE_COLOR, NO_COLOR & ANSI_COLORS_DISABLED env vars when present & not an empty string
🎨 Replace literal types with strings
🎨 Replace deprecated classifier with licence expression (PEP 639)
🎨 Speedup: move typing imports into type-checking block
🎨 Remove deprecated __ALL__, use __all__ instead
https://github.com/termcolor/termcolor/releases/tag/3.0.0
#Python #termcolor #release #terminal #colour #color

2025-03-27 15:58:19 UTC

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Just released: PrettyTable 3.16 🚀
Just released: norwegianblue 0.21.0 🚀
Add support for OSC 8 hyperlinks in the terminal.
https://github.com/prettytable/prettytable/releases/tag/3.16.0
norwegianblue now uses this to create hyperlinks in the terminal instead of printing a wide column of links. Use command+click with iTerm.
Also create hyperlinks for Markdown, reStructuredText and HTML output.
https://github.com/hugovk/norwegianblue/releases/tag/0.21.0
Attached are before and after images.
#Python #release #PrettyTable #norwegianblue
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2025-03-25 12:04:49 UTC

GitHub Actions now supports free-threaded Python!
I wrote up how to add it your workflows so you can start testing free-threaded Python 3.13 and 3.14 with either actions/setup-python or actions/setup-uv.
https://hugovk.dev/blog/2025/free-threaded-python-on-github-actions/
#Python #FreeThreaded #GitHub #GitHubActions #CI #testing

2025-03-24 17:19:26 UTC

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Just released: humanize 4.12.2 🚀
Bugfix release, mainly fixing the spelling of licence/license so the file is properly included in the package.
Reminder how to do PEP 639 metadata: https://hugovk.dev/blog/2025/improving-licence-metadata/
https://github.com/python-humanize/humanize/releases
#Python #release #humanize #bugfix #PEP639

2025-03-21 16:56:03 UTC

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Just released: pypistats 1.9.0 🚀
pypistats is CLI to show download stats from PyPI
https://pypi.org/project/pypistats/1.9.0/
* Replace deprecated classifier with licence expression (PEP 639)
* Remove GitHub attestation, uses PyPI attestations instead (PEP 740)
* Add input validation for total and fix --monthly with no mirror
* Update docs for recent command
#Python #CLI #pypistats #release
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2025-03-16 09:01:29 UTC

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Yes, the keynote at @npub1y3n…0j80 last week was on this very topic:
Digital Sovereignty and Open Source – Shaping an answer to geopolitical instabilities, by Jutta Horstmann
https://25.foss-backstage.de/session/digital-sovereignty-and-open-source-shaping-an-answer-to-geopolitical-instabilities/
https://youtu.be/StdX1DqlPO4
#FOSSBack