What is Pyodide and why now

TL;DR: Pyodide brings the CPython interpreter to the browser via WebAssembly, which means you can run real Python side-by-side with JavaScript, no server needed. With HTTP/2, modern browsers, and better WASM startup, it’s finally smooth enough to feel native for many use cases.

Why it matters

• No backend needed for many prototypes and teaching tools.
• Great for notebooks, education, sandboxes, and visualizations.
• Bridges ecosystems: call js.fetch from Python; call back into JS.

Try it

Open the demos: Fetch, Chart, and DOM → Python.

Performance & tips

• Use a CDN for the Pyodide files.
• Lazy-load Pyodide only when needed.
• Cache-control static assets (immutable) and avoid cache for HTML.

Source of truth: your code ships as static files—portable, fast, and easy to embed.