TIL about `copy.replace()` which is like `dataclasses.replace()` but also for everything else (that defines `__replace__()`)! https://docs.python.org/3/library/copy.html#copy.replace #python

I really enjoyed both the content and the flavor of https://www.stilldrinking.org/navigating-the-anxiety-vortex

Bring your kid to conference day 😎 PyCon UK did an amazing job making an entire track full of interesting workshops for young coders #PyconUK

Python lager + Indian street food #PyconUK

New Ruff release is out, stabilizing a ton of rules! https://astral.sh/blog/ruff-v0.13.0

Astral does this amazing thing, where we pledge to donate a bunch of money to Rust and Python open source developers and projects. This year we pledge $44k https://astral.sh/blog/astral-oss-fund-one-year-later

What year is this, Threads?

And it's out! https://github.com/astral-sh/uv/releases/tag/0.8.14

Colors in the terminal matter. They help you parse long errors especially in nested output. Build tools (like uv) set CLICOLOR_FORCE to make compilers etc always output colors, even if they're invoked non-interactively. Turns out this sometimes breaks tools trying to parse this (now colored) […]

I just accidentally deleted a post I spent 15 minutes composing because I tapped on the x in the top right - thinking it would reset the topic. 🫥

https://crablang.org - including the `crabgo` package manager! https://crablang.org/

I'll be joining Astral from September to work mainly on https://astral.sh/pyx, which the team just announced! Can't wait!

As I'm preparing to leave Meta at the end of this week, it hit me how many friends and connections I've made during my time there - that's definitely the highlight of this past decade. The growth as an engineer is just a cherry on top. I'm grateful.

Limited edition, glow-in-the-dark toilet paper. Mankind has come a long way since covid times.

This is your regularly scheduled reminder: it's not Sunday yet!

dotslash-python, the 2KB Python distribution now comes with arm64 Windows builds! https://github.com/zsol/dotslash-python

Random notes on python's main block idiom: https://notes.zsol.me/Python/Main+Function

Debugging crashes in a Python library that only happened on 32bit x86 and armv7l. From my 64bit Windows machine. Not _easy_ yet, but it's close! https://notes.zsol.me/Python/Debugging+broken+cibuildwheel+output

Coolest Meta office I've been to

https://m.youtube.com/watch?v=ydVmzg_SJLw What a talk

I'm working on a tiny piece of this 😬 https://engineering.fb.com/2025/04/29/security/whatsapp-private-processing-ai-tools/

I made a post on hermetic Python notebooks: https://notes.zsol.me/Python/Hermetic+Notebook

Today I learned how to solder. I can now remotely control my remote controller.

https://alexgaynor.net/2025/mar/25/postels-law-and-the-three-ring-circus/ #opensource

👋

From the docs of `urllib.request.urlopen`: > This function always returns an object which can work as a context manager and has the properties url, headers, and status. See urllib.response.addinfourl for more detail on these properties. 🤔 I wish we could just have a type for this instead of […]

dotslash-python, the 3KB Python distribution now has free-threading as well as 3.14 alpha versions. If you wanna experiment, just download the 3KB file from the latest release and run it. Full instructions in the readme: https://github.com/zsol/dotslash-python

I found my old (16 years old!) blog. It's full of weird, niche things like compiling AOSP or debugging pulseaudio. What a journey this has been

First user experience with Claude Code: - had to figure out how to install npm (took two attempts) - Windows isn't supported yet - WSL is kinda supported if you jump through some hoops (esp when your Windows NPM is being run by default) - Set up my Anthropic account + Code separately - Only to […]

Several new releases today over at https://py.wtf, this one hints at some of the rest: the search bar no longer displays all matches, only the top 50 most relevant. This keeps search snappy across the site. Python https://py.wtf/

Gmail helpfully reminded me today that I signed up for their service 21 years ago.

I wonder what's the CTR on that "Print" button for this Cloudflare page

Roast my Rust

Ditched my NetGear Orbi router for a TP-link Deco model. Same Internet connection, +50% download speed as measured on a wired connection. The Orbi has been a constant source of pain - slow speeds, random disconnects (even on wired), and wifi range issues. Good riddance

In related news, https://github.com/zsol/dotslash-python will start releasing free-threaded Python builds from next release on

Got a free-threaded build of LibCST working today! Only 3x faster on my Windows machine on a dummy benchmark though (using ~12 cores). Time to bust out the profiler

Well, seems like I've hit GitHub's limit on GitHub pages total deployment size (1GB) for https://py.wtf. Any tips for storage providers with generous free tiers that I can put behind CloudFlare? https://py.wtf/

I made code navigation work with OSS buck2 and VSCode today. https://notes.zsol.me/Buck2+Language+Features+in+VSCode