What is Pyodide? Client-side Python in the Web Browser

Historically, Python and JavaScript operated on separate stacks. Using WebAssembly, we can compile Python interpreters and numerical toolkits to execute in sandboxed browser tabs. **Pyodide** makes this possible.

Pyodide Architecture

Pyodide compiles the standard CPython interpreter into WebAssembly binaries. It also ports native C-extended libraries like NumPy, Pandas, and SciPy to WASM. Pyodide sets up bidirectional data sharing, allowing Javascript code to call Python variables natively.

Use Case: Polimelo Lab

Our client-side Python terminal loads Pyodide on boot. When users run scripts, execution is handled entirely in their browser tab without sending requests to external web servers, protecting code privacy while eliminating cloud computing costs.