smart_toyAI/PROMPT ENGINEERING
Running Python ASGI apps in the browser via Pyodide + a service worker
sourceSimon Willison
calendar_todayMay 30, 2026
schedule2 min read
lightbulb
EXECUTIVE SUMMARY
Revolutionizing Python ASGI Apps: Running in the Browser with Pyodide
Summary
This article discusses the innovative approach of running Python ASGI applications in the browser using Pyodide and Service Workers, specifically through the development of Datasette Lite.
Key Points
- Datasette Lite is a browser-based version of Datasette, utilizing Pyodide in WebAssembly.
- The initial implementation used Web Workers, which limited JavaScript execution in