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micropython-wasm 0.1a0

Simon Willison · Jun 02, 2026 · Engineering Insights

Simon Willison releases MicroPython WASM sandbox for safe Python code execution

Simon Willison released an alpha package that bundles MicroPython compiled to WebAssembly with a wasmtime wrapper for sandboxed Python execution. This is a personal sandboxing experiment rather than a major AI industry development. While sandboxing is relevant to safe AI code execution, this specific release is too early-stage and niche to warrant newsletter inclusion.

sandboxing webassembly python micropython

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