Simon Willison’s Weblog

Python can run fast on the CLR (via) IronPython on .NET 70% faster than CPython(!)

Posted 11th December 2003 at 3:07 am

Recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

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