Chris Wellons 1/1/2026

WebAssembly as a Python extension platform

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This technical article discusses using WebAssembly as a platform for Python extensions. It explains how Wasm allows developers to write extensions in their language of choice, offering performance benefits and avoiding the need for a C toolchain on the host system. It compares runtimes like wasm3 and wasmtime-py, detailing their trade-offs in speed, size, and API stability, and provides insights into practical use cases and pitfalls.

WebAssembly as a Python extension platform

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