Notes on Writing WASM

Re:Notes on Writing WASM by suddenlybananas on Sunday March 08, 2026 @07:43AM (#47296557)

Why is PyO3 so much nicer to use than wasm-bindgen? Is it because of WASM itself or just the tooling?

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Re:Notes on Writing WASM by nicoburns on Sunday March 08, 2026 @07:54AM (#47296609)

I think its a large part just the tooling. wasm-bindgen hasn't seen active development for several years at this point.

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Re:Notes on Writing WASM by comagoosie on Sunday March 08, 2026 @09:30AM (#47297178)

The good news is that since August 2025 there's been quite the uptick in development, in large part thanks to folks working over at Cloudflare.

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Re:Notes on Writing WASM by Tpt on Sunday March 08, 2026 @01:38PM (#47299233)

I guess it's mostly because cpython has a fairly good C API allowing PyO3 to just write "safe" wrappers on top of cpython APIs and provide macros to generate boilerplate whereas wasm-bindgen has to generate both Rust and JS sides and deal with the painful linear memory intermediate.

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