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lukasz.langa.pl
CPython Developer in Residence, Python 3.8 and 3.9 release manager. Gradual typing enthusiast, asynchronous programming proponent, creator of the auto-formatter Black. He produces electronic music, which includes software and hardware of his own making.
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Fast on the heels of the last release, I have published a PyPy v7.3.19 bug-fix release with PyPy2.7, PyPY3.10 and a beta-quality PyPy3.11. Please try it out! The complete release note is at doc.pypy.org/en/latest/re...

submitted 18 hours ago • 0 comments

I spent last week in Valtournenche with @antocuni.bsky.social and Hood Chatham and managed to use SPy to accelerate my #Python code in the browser. It's too early for general adoption, but not too early to get excited! lukasz.langa.pl/f37aa97a-9ea...

submitted 2 days ago • 2 comments

SPy retreat in #Cervinia with @antocuni.bsky.social and Hood Chatham.

submitted 9 days ago • 0 comments

Python 3.14.0a5 is out today in uv 0.5.31 and includes a new tail calling interpreter which, from some quick benchmarks, looks like a 1.23x performance improvement !

submitted 14 days ago • 4 comments

$2a$11$70w6J.UbVsGwuTMIvSTq5Oh97csRvkT9bz2BuWASdYI1W4MhnMDU2

submitted 14 days ago • 0 comments

Today is a good day. I built installers for #Python 3.14.0a5 for both Windows and macOS. My little fix to #xonsh immediately landed in a new release that was immediately picked up by #homebrew. Upgrading was seamless. Try 3.14.0a5 yourself at www.python.org/download/pre...

submitted 15 days ago • 1 comment

Here's the blog post about the PyPY 7.3.18 release that came out yesterday. Thanks to @matti-p.bsky.social, our release manager! This the first version with 3.11 support (beta only so far). Two cool other features in the thread below. pypy.org/posts/2025/0...

submitted 19 days ago • 1 comment

🎈🐍🎈 Exciting news! I've joined @sovereign.tech's Sovereign Tech Fellowship to maintain critical digital infrastructure in the #Python world! hugovk.dev/blog/2025/im... And meet my fellow Fellows: www.sovereign.tech/news/meet-th...

submitted 20 days ago • 6 comments

I wrote a retrospective on my #Genuary adventures with generative art with #PyScript and #Three.js. #GenerativeArt #CreativeCoding #WebGL #Python lukasz.langa.pl/62eae3e6-a59...

submitted 21 days ago • 2 comments

I made a blog! Here's a little tale from the bad place of how to delay a #Python release: hugovk.dev/blog/2025/ho... Enjoy!

submitted 22 days ago • 3 comments

#genuary31 prompt: pixel sorting. This took a lot of effort since I have zero experience with GLSL, but it's a success in the end. The pixels are sorted, indeed. ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python #PixelSorting #GlitchArt

submitted 25 days ago • 1 comment

Hello Bluesky! 👋🏻 Let's kick off our first post on Bluesky with our Keynote announcement: taking the #PyConEstonia2025 stage is @lukasz.langa.pl! To see him, get an early snake ticket for 99€ at pycon.ee!

submitted 27 days ago • 1 comment

#genuary26 prompt: symmetry. #genuary27 prompt: something interesting with no randomness or noise. See other post for explanation 👇🏻 ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python #PyScript #Monome

submitted 29 days ago • 1 comment

#genuary21 prompt: a collision detection system #genuary25 prompt: one line that doesn't intersect itself The first few seconds don't explain it, things get more obvious later. Sound on. Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #WebGL #Python

submitted 31 days ago • 2 comments

It's been a while, huh? The core․py podcast is back with an episode about reference counting! 🎙️ I know y'all are waiting for the GC episode but we need to eat the veggies first. We hope it's fun anyway. We bet it is! 🍀 #Python #Podcast #Betting #TotallyLegal creators.spotify.com/pod/show/cor...

submitted 32 days ago • 3 comments

#genuary18 prompt: What does wind look like? #genuary22 prompt: Gradients only. Looks more like a plant or urchin than wind, but this is where I ended up 🤷🏻‍♂️ Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 34 days ago • 0 comments

#genuary17 prompt: What if pi=4? #genuary19 prompt: Op art. I needed to combine the prompts for it to look interesting. PI=4 happens mid video, you can see the prompt. Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 36 days ago • 1 comment

#genuary16 prompt: Generative palette. A kaleidoscope with LUTs, colored spotlights, and colored textures, synchronized to music. Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 40 days ago • 0 comments

#genuary15 prompt: Design a rug. Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 42 days ago • 1 comment

#genuary14 prompt: Pure black and white. No gray. There was supposed to be an animated GIF here demonstrating realtime webcam processing with #PyScript and Three.js but looks like Bluesky can't upload animated GIFs properly yet. #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 43 days ago • 2 comments

#genuary13 prompt: Triangles Only. A beat synchronized visualization. A grid of 6,400 triangles being gently scaled, displaced, and discolored in 3D. Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 44 days ago • 0 comments

#genuary11 prompt: Impossible day. #genuary12 prompt: Subdivision. I combined the prompts to do frequency-aware realtime audio visualization. Makes most sense with the volume up. Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #WebGL #Python

submitted 45 days ago • 1 comment

🧵 I live in Los Angeles. We have not had to evacuate and are safe, but like many people here, I have friends who have lost everything. I realize I can't combat the firehose (see what I did there?) of bullshit spewing about this disaster from internet and media sources, but I'll say this:

submitted 46 days ago • 300 comments

I am a climate scientist and this is correct ⬇️

submitted 49 days ago • 333 comments

#genuary10 prompt: only use TAU in your code, no other number allowed. That's perfect since Python's got it in the standard library 🐍 Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 47 days ago • 2 comments

#genuary8 prompt: Draw one million of something. #genuary9 prompt: The textile design patterns of public transport seating. Not much time so combined two prompts. Efficiency! Made with #PyScript: pyscript.com/@ambv/genuar... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 48 days ago • 1 comment

#genuary7 prompt: Use software not intended to make images. I wrote a Python program that takes an image and produces a .WAV file. Viewed with a spectrogram... shows the image 😎 Made with #PyScript: pyscript.com/@ambv/genuar... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 49 days ago • 1 comment

You can now install the latest Python 3.14 alpha with uv

submitted 50 days ago • 5 comments

#genuary6 prompt: A landscape using only primitive shapes. This is an evolution of my "42 lines of code" entry from Jan 3rd. This one's well over 200 lines of code. Made with #PyScript: ambv.pyscriptapps.com/genuary-prom... #genuary2025 #genuary #GenerativeArt #CreativeCoding #WebGL #Python

submitted 50 days ago • 3 comments