cpython-wasm-svelte-demo

Python in the browser (via WebAssembly). A minimal typescript example in a SvelteKit app.

This app is quite similar to the earlier demos in ethanhs/python-wasm (which has now been ported to the main python/cpython repo in Tools/wasm).

Relative to that demo, this one removes some complexity (specifically, related to interactions with xterm.js) while adding some complexity in the form of:

• Typescript
• Integration into a svelte app rather than vanilla html.

Developing

To get started:

# Install
npm i

# Start a dev server @ :3000
npm run dev

# To create a production version of your app:
npm run build

# Preview the production build:
npm run preview

Links

• ethanhs/python-wasm OG python demo. Still a lot of discussion there re:progress.
• Emscripten
  • Typescript
    • https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/emscripten/index.d.ts
    • https://github.com/imxood/emcc-typescript-example
• ctypes/libffi work:
  • https://gist.github.com/kleisauke/acfa1c09522705efa5eb0541d2d00887
  • https://github.com/pyodide/pyodide/pull/1656
  • https://github.com/emscripten-core/emscripten/issues/11066
• SharedArrayBuffer: Security requirements (mdn)