WASM and Pyodide

Pyodide Basics

Pyodide runs Python in the browser via WebAssembly. Pyvorin can pre-compile modules that are loaded as WASM shared libraries.

Pre-compiling for WASM

pyvorin compile algorithm.py --target wasm32

Loading in Browser

import pyodide
await pyodide.loadPackage('pyvorin-runtime')
result = pyodide.runPython('import algorithm; algorithm.main()')

Limitations

• WASM target has limited runtime library support.
• Threading is restricted to Web Workers.
• File system access uses Emscripten virtual FS.