miguelgrinberg/python-socketio

Health v2 · maintenance only

Adoption not part of the score

4368 stars · 625 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A Python implementation of the Socket.IO realtime client and server, supporting WebSocket and long-polling transports with asyncio, eventlet, and gevent integration. It enables bidirectional, event-based communication between Python servers and clients, including compatibility with the JavaScript Socket.IO reference implementation.

Use cases

• build a realtime chat server in Python
• push live updates to web clients over websockets
• add bidirectional event-based messaging to a Flask or FastAPI app
• connect a Python client to a JavaScript Socket.IO server
• implement low-latency notifications or live dashboards
• stream data to browsers in real time

When to choose

• you need Socket.IO protocol compatibility in Python, including with JS clients
• you want event-based realtime messaging with fallback to long-polling
• you need asyncio, eventlet, or gevent support
• you want a mature, well-documented library with an active maintainer

When to avoid

• you only need plain WebSockets without the Socket.IO protocol overhead
• you need protocol revisions older than revision 4 (Engine.IO 3)
• your project is not Python-based

Facets

library · maturity stable

websocket http-server middleware web-development backend networking python cross-platform socketio realtime asyncio eventlet gevent long-polling low-latency event-driven real-time web-server

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