Simon Willison’s Weblog

Hello, HPy (via) HPy provides a new way to write C extensions for Python in a way that is compatible with multiple Python implementations at once, including PyPy.

Posted 29th March 2021 at 2:40 pm

Recent articles

Introducing gisthost.github.io - 1st January 2026
2025: The year in LLMs - 31st December 2025
How Rob Pike got spammed with an AI slop "act of kindness" - 26th December 2025

pypy 9 python 1219

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe