Simon Willison’s Weblog

2nd June 2026

Release micropython-wasm 0.1a0 — Python library for running a MicroPython sandbox using WebAssembly

My latest sandboxing experiment: This alpha package bundles a lightly customized WASM build of MicroPython with a wrapper to execute code in it via wasmtime.

Posted 2nd June 2026 at 3:43 am

Recent articles

Publishing WASM wheels to PyPI for use with Pyodide - 13th June 2026
Claude Fable is relentlessly proactive - 11th June 2026
Initial impressions of Claude Fable 5 - 9th June 2026

This is a beat by Simon Willison, posted on 2nd June 2026.

python 1,261 sandboxing 47 webassembly 126 micropython 9

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