Łukasz Langa

Expecting her first pull request any day now!

Today I realized I’m going to be:

– the 10th RM ever
– the first Canadian RM, and
– the first woman to serve in this role

If you ask me, that’s all really, really cool.

Heads Up, #Python Developers!

There is an active phishing attack targeting PyPI users.

• Threat: Emails from noreply@pypj.org (with a 'j') link to a fake login page.
• Action: Do not click any links. If you already did, change your PyPI password ASAP.
• Note: PyPI itself has not been breached.

fstrings.wtf - Python F-String Quiz Test your knowledge of Python's f-string formatting with this interactive quiz. How well do you know Python's string formatting quirks?

How well do you know Python’s f-strings? I built a thing inspired by JavaScript’s Date constructor quiz but for Python. fstrings.wtf

@pablogsal.com and I are in Prague for @europython.eu. Come talk to us about REPLs, parsers, profilers, and Sleep Tokens! 🤘🏻

And if you’re not here, there’s a new episode of the core․py podcast where we cover the new builtin sampling profiler for #Python 3.15 🏎️

creators.spotify.com/pod/profile/...

Almost 4 months later, here it finally is:

uv: Making Python Local Workflows Fast and Boring in 2025

youtube.com/watch?v=TiBI... 1/3

Lost in the Bitrate w/ Lena Raine 26th June 2025 Playing Experimental, Ambient, Modern Classical. Vancouver-based video game composer and Radical Dreamland founder selects an hour of her favourite musical inspirations.

my mix 'Lost in the Bitrate' that played on NTS yesterday is now in archive mode, so you can listen to it whenever~

www.nts.live/shows/guests...

Contribute, learn, collaborate! Join the Sprints on July 19–20 — two days of open-source hacking, project-based learning, and community teamwork.

Watch Łukasz's @lukasz.langa.pl video to get inspired.

Python 3.14.0 beta 3 is here! It’s 3.14 beta 3! https://www.python.org/downloads/release/python-3140b3/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b3, is the third of four pla...

Just released: Python 3.14.0 beta 3! 🚀🐍

🥧 Exceptionally new in b3:

🥧 Free-threaded Python is officially supported! (PEP 779)

🥧 Subinterpreters in the stdlib! (PEP 734)

Do you maintain a Python package? Please test 3.14.

discuss.python.org/t/python-3-1...

#Python #CPython #Python314 #release

A picture of a laptop with a large sticker on it that emulates a 6 x 5 grid of hexagonal stickers. Depicted are things I like. Dodge Challenger, Tubular Bells, Moog Music, Xonsh, October Rust, Zen and the Art of Motorcycle Maintenance, Flashback, Black (the auto-formatter), Aphex Twin, Visual Studio Code, Yamaha Revstar hanko, Yamaha Corporation triple tuning fork logo, Ableton Live, Fallout, Python (the programming language), ProTracker 2, Shadow of the Beast 3, Tool (the band), Dave Bowman walking through Discovery in “2001: A Space Odyssey”, Atheism, Antifragile, Sandman, Elder Scrolls, Miles Davis’ “Blue in Green” sheet music from the bootleg 5th edition of the “Real Book”, Godel Escher Bach, Drive (the movie), and Supercollider (the music synthesis server).

It was time to update the sticker wall on the laptop. New additions: xonsh, Yamaha (that should have been there from day 1), 2001, and Drive. And a much improved Challenger tile.

Python 3.13.4, 3.12.11, 3.11.13, 3.10.18 and 3.9.23 are now available! Python Release Party It was only meant to be release day for 3.13.4 today, but poor number 13 looked so lonely… And hey, we had a couple of tarfile CVEs that we had to fix. So most of the Release Mana...

Thanks to the work of Python Release Managers and all the Developers-in-Residence we have a coordinated #Python #security release of all versions for 5 CVEs all in one day (1 critical, 3 high, 1 medium)

discuss.python.org/t/python-3-1...

Everyone’s loving the avatars @pycon.us — so I had to make one for our amazing Devs-in-Residence @python.org too. This photo? Epic.
@lukasz.langa.pl @miketheman.com @sethmlarson.dev #PyConUS #pycon2025

Python 3.14.0 beta 2 is here! Here’s the second 3.14 beta. https://www.python.org/downloads/release/python-3140b2/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b2, is the second...

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!

discuss.python.org/t/python-3-1...

#Python #CPython #Python314 #release

Upgraded to business class. Could be worse!

Me standing outside of the David L. Lawrence Conference Center in Pittsburgh.

As they say after #PyConUS, "Mind is empty, heart is full"

Leaving the Three Rivers on a rainy day. It's been a great PyCon this time around.

#Python #PyConUS2025

Diego, Łukasz, Savannah and Pablo posing for a selfie

Me and the CPython Core Dev Sleep Token cover band

@diegor.it @lukasz.langa.pl @pablogsal.com

YouTube video by PyCon US High-Performance Python: Faster Type Checking and Free Threaded Execution (Sponsor: Meta)

Oh look, #PyConUS videos are beginning to appear on YouTube, starting with the sponsor presentations. Here's Sam Gross's talk about Free-threaded Python (as well as Neil Mitchell on Pyrefly):

youtu.be/ZTSZ1OCUaeQ?...

Looking forward to this afternoon's awards at #pyconus There are so many great people receiving awards this year!! See you in the big room at 4:15 🥳

Are you thinking about staying for sprints at #pyconus tomorrow? @lukasz.langa.pl has answered nearly every question you might have! pycon.blogspot.com/2025/04/pyco...

Pablo Galindo, myself, Yury Selivanov, and Guido van Rossum in banana suits.

We are serious programmers.

#PyCon #PyConUS2025 #Python

Totally Bananas presentation from @1st1.dev and @pablogsal.com with special guests @lukasz.langa.pl and Guido 🍌

Get to know the PSF Developers in Residence at a Meet & Greet session at the PSF Booth @pycon.us, starting shortly (May 15th, 5-6PM)! Learn about their work supporting the Python community and ask them all your burning #Python questions 🐍❓#PyConUS @lukasz.langa.pl @miketheman.com @sethmlarson.dev

Stoked for my WebGL tutorial on Thursday morning at @pycon@fosstodon.org. 3:30h to show all the basic components of 3D graphics? Might be ambitious! But I'll do my best.

Hopefully the wi-fi won't betray us 🤞🏻🤞🏻

#PyConUS #PyConUS2025 #Python #PyScript #Threejs

Me and a mysterious grumpy person whose name starts with a ? in a beer garden.

#PyConUS PREGAME

Yeah I did the same, but the replacements messed with ANC a little bit, and finally it broke down entirely and started feeding back with a terrible whine. I still use them on the cable at home since they are good headphones, but I begridgingly bought replacements recently.

I love to see details like this 😍

Currently, reading half a meg of text with bracketed pasting takes around 0.25s, so I think that's preferable.

For cmd.exe I am indeed toying with something similar to what you're saying but only in the F3 paste mode. Outputting text only every 50ms when you type it feels janky.

Good find, we don't want to link a domain that doesn't exist.

Impressive hack. I agree, we should do better there!