Just attended my first Python Language Summit! 🐍 A day full of fascinating discussions, ideas, and brilliant people. Grateful to be part of this amazing community.💙 #PyConUS

The official trailer for the official Python documentary is out!!! ❤️to Ida.

I am proud to share the news that PSF has decided to sponsor the ft-checker.com website. We will continue to enhance the project for the successful landing of the free-threading CPython project!

My presentation about using rust from python from PyConUS got published very quickly this year 😁 youtu.be/CqOZdTFb4io?si…

The "faster CPython" team at Microsoft was recently dissolved. My position at Microsoft was eliminated. If anyone has a reason to be disappointed in this, it's me. So it feels okay for me to ask you to refocus any disappointment you might have about Microsoft's decision.

Let's be grateful for a big Python user actually laying down meaningful cash for 4 years in support of a volunteer-driven community project! Let's express our frustration instead in how that doesn't happen more often!

The Python Steering Council is pleased to announce that the Free-Threading project is no longer considered experimental! discuss.python.org/t/pep-779-crit…

I've been working on CPython's JIT compiler from the very start. Here are some reflections I have on it. Some points are hard to swallow, but I have to point them out if we are to grow. fidget-spinner.github.io/posts/jit-refl…

pybind11 3.0 is out (in time for #scipy2025)! Support for Python 3.14, 3.14t, GraalPy, PyPy 3.11, and iOS have been added. smart-holder merged, native enums, multiphase init, subinterpreters (with per-interp GIL), better typing, C++23, and much more! See iscinumpy.dev/post/pybind11-…

Łukasz 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/co…

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

We just released cibuildwheel 3.1, which builds Python 3.14/3.14t wheels by default (with yesterday's RC 1)! Also we added Android support, Pyodide 0.28 (3.13), 32-bit modern manylinux, riscv64 defaults, and beautiful new summaries! github.com/pypa/cibuildwh…

We are expanding the CPython team in the Runtimes organisation at Arm, hiring Senior Software Engineers in Cambridge/Manchester. Love diving into CPython internals or improve its performance?🐍 Apply here:👇 careers.arm.com/job/cambridge/…

The PSF has adopted pypistats.org, ensuring long-term stability while staying open source and community driven 🎉 Thank you to Christopher Flynn, for operating this community service for 6+ years- and for continuing to maintain the project 💪🐍 pyfound.blogspot.com/2025/08/pypist…

The *full* Python Documentary will be released this Thursday (Aug 28) at 10am PDT / 19:00 CET. More at discuss.python.org/t/python-docum… Don't miss the online release party / chat! Tech Documentaries

Design an API can take time. This article describes the design of the C API to import and export Python integers. It takes place between August 2023 and December 2024. In total, the discussions got more than 448 messages! vstinner.github.io/pep-757-c-api-…

A campaign targeted GitHub Actions to steal PyPI tokens—PyPI wasn’t compromised and no PyPI packages were published by the attackers. Stay safe: review your tokens, rotate any exposed ones, and use short-lived, scoped GitHub Actions tokens. Details: blog.pypi.org/posts/2025-09-…

🐍 Python 3.14 is here! 🎉 ✨ Template strings (t-strings) 🚀 Free-threaded Python officially supported 🎨 Syntax highlighting in the REPL 📦 Zstandard compression in stdlib 🔍 Remote PDB debugging Full release notes: docs.python.org/3.14/whatsnew/…

Last month the CPython Core Dev Sprint 2025 took place at Arm Cambridge. 🔧 I’ve just published a full write-up on what happened, what went into organising it, and what it means for Arm & the Python community. 👉 Read it here: community.arm.com/arm-community-…

🐍 Throwback to last month’s CPython Core Dev Sprint 2025 at our HQ in Cambridge. 50+ core devs (yes, including Guido 👀) and guests spent 5 days hacking on CPython: think working with JIT, free-threading, C-API and more. Thanks to Python Software Foundation + everyone who joined: