WASM lacks garbage collection and is statically typed. You'd have to write a whole Python interpreter, so I'd expect the end result would be slower than the off

WASM lacks garbage collection and is statically typed. You'd have to write a whole Python interpreter, so I'd expect the end result would be slower than the official Python interpreter. I imagine it would make more sense to compile Python to JavaScript and leverage the optimising JavaScript JIT engines, but no doubt an efficient transpiler would be a significant undertaking. The Transcrypt project [0] does something like this but I don't think it emphasises performance. [0] https://www.transcrypt.org/ https://www.transcrypt.org/