Accessing `obj.x` in Python might look trivial — but under the hood lies a surprisingly intricate chain of logic. I wrote an annotated walkthrough of the CPython source code that makes it all happen: antocuni.eu/2025/08/25/i...

🛑⚠️ Claude code modified my .bashrc without asking? ⚠️🛑 It seems to that during an automatic update, claude sneakily modified my ~/.bashrc to remove an alias to itself. I didn't ask my permission, it didn't notify me of the change. I find it completely unacceptable. antocuni.eu/2025/07/07/c...

Yesterday I talked about SPy at @pyconit.bsky.social Links to slides & videos here: antocuni.eu/2025/05/31/s...

My language is brand new and experimental, but they already named a museum after it github.com/spylang/spy

Wow, I'm at the same time happy, surprised and honored that my PyCon US talk about SPy (github.com/spylang/spy) made the top 10

I'm having mixed results with claude code. It seems very good at "easy tasks", but the most annoying thing is that it has the tendency to not follow my instructions and do "what it wants". TL;DR: I put instructions in `CLAUDE.md` but it tends to forget about them: antocuni.eu/2025/03/16/t...

I wrote a small tool to automatically record all my "claude code" sessions and export them into easily shareable HTML: github.com/antocuni/cla... Example log: antocuni.github.io/files/claude...

Last week @lukasz.langa.pl and Hoot Chatham visited me on the Italian Alps for a week of hacking and winter sports. This is the report: antocuni.eu/2025/02/26/o... SPOILER ALERT: it contains tons of PRs to CPython, Pyodide and SPy.

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...

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...

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