{"library":"python-socketio","title":"Python Socket.IO","description":"python-socketio is a comprehensive Python implementation of the Socket.IO real-time communication protocol, offering both server and client functionalities. It enables low-latency, bidirectional, and event-based communication between clients (often web browsers) and a Python server. The library is actively maintained with frequent releases, providing compatibility with various asynchronous frameworks and web servers.","language":"python","status":"active","last_verified":"Wed May 20","install":{"commands":["pip install python-socketio","pip install \"python-socketio[client]\"","pip install \"python-socketio[asyncio_client]\""],"cli":null},"imports":["import socketio\nsio = socketio.Server()","import socketio\nsio = socketio.AsyncServer()","import socketio\nsio = socketio.Client()","import socketio\nsio = socketio.AsyncClient()","import socketio\napp = socketio.WSGIApp(sio)","import socketio\napp = socketio.ASGIApp(sio)"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import socketio\nimport eventlet\n\nsio = socketio.Server(cors_allowed_origins=\"*\")\napp = socketio.WSGIApp(sio, static_files={\n '/': {'content_type': 'text/html', 'filename': 'index.html'}\n})\n\n@sio.event\ndef connect(sid, environ):\n print('connect ', sid)\n\n@sio.event\ndef my_message(sid, data):\n print('message ', data)\n sio.emit('my response', {'data': data}, room=sid)\n\n@sio.event\ndef disconnect(sid):\n print('disconnect ', sid)\n\nif __name__ == '__main__':\n # index.html for testing\n with open('index.html', 'w') as f:\n f.write('''\n \n \n \n Socket.IO Test\n \n \n \n Socket.IO Test
\n \n \n \n ''')\n print(\"Starting server on http://localhost:5000\")\n eventlet.wsgi.server(eventlet.listen(('', 5000)), app)\n","lang":"python","description":"This quickstart demonstrates a basic Socket.IO server using `eventlet` and a simple HTML client. The server defines handlers for `connect`, `my_message`, and `disconnect` events. The client connects, sends a message, and receives a response. An `index.html` file is created on the fly for easy testing. Remember to `pip install eventlet` for this example to run.","tag":null,"tag_description":null,"last_tested":"2026-04-24","results":[{"runtime":"python:3.10-alpine","exit_code":1},{"runtime":"python:3.10-slim","exit_code":1},{"runtime":"python:3.11-alpine","exit_code":1},{"runtime":"python:3.11-slim","exit_code":1},{"runtime":"python:3.12-alpine","exit_code":1},{"runtime":"python:3.12-slim","exit_code":1},{"runtime":"python:3.13-alpine","exit_code":1},{"runtime":"python:3.13-slim","exit_code":1},{"runtime":"python:3.9-alpine","exit_code":1},{"runtime":"python:3.9-slim","exit_code":1}]},"compatibility":{"tag":"verified","tag_description":"installs cleanly on critical runtimes, fast import, recently tested","last_tested":"2026-05-20","installed_version":"5.16.1","pypi_latest":"5.16.1","is_stale":false,"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":2.4,"avg_import_s":0.61,"wheel_type":"wheel"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.15,"mem_mb":6,"disk_size":"19.8M"},{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.23,"mem_mb":6,"disk_size":"19.8M"},{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.71,"mem_mb":13,"disk_size":"23.9M"},{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.77,"mem_mb":12.9,"disk_size":"23.8M"},{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.16,"mem_mb":6,"disk_size":"19.8M"},{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.18,"mem_mb":6,"disk_size":"19.8M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":1.8,"import_time_s":0.11,"mem_mb":6,"disk_size":"20M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.13,"mem_mb":6,"disk_size":"20M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.5,"import_time_s":0.49,"mem_mb":13,"disk_size":"24M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.66,"mem_mb":12.9,"disk_size":"24M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":1.8,"import_time_s":0.11,"mem_mb":6,"disk_size":"20M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.14,"mem_mb":6,"disk_size":"20M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.69,"mem_mb":16,"disk_size":"32.0M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.84,"mem_mb":15.9,"disk_size":"32.4M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.89,"mem_mb":14.9,"disk_size":"26.4M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":1.13,"mem_mb":14.8,"disk_size":"26.3M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.26,"mem_mb":7.5,"disk_size":"22.0M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.3,"mem_mb":7.5,"disk_size":"22.0M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":3.9,"import_time_s":0.6,"mem_mb":16,"disk_size":"34M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.66,"mem_mb":15.9,"disk_size":"35M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.6,"import_time_s":0.81,"mem_mb":14.9,"disk_size":"27M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.88,"mem_mb":14.8,"disk_size":"27M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":1.9,"import_time_s":0.22,"mem_mb":7.5,"disk_size":"22M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.29,"mem_mb":7.5,"disk_size":"22M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.85,"mem_mb":16.2,"disk_size":"23.8M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":1.01,"mem_mb":16.1,"disk_size":"24.2M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":1.04,"mem_mb":16.9,"disk_size":"18.1M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":1.26,"mem_mb":16.8,"disk_size":"18.0M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.46,"mem_mb":9.1,"disk_size":"13.8M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.54,"mem_mb":9.1,"disk_size":"13.8M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":3.1,"import_time_s":0.81,"mem_mb":16.2,"disk_size":"26M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.97,"mem_mb":16.1,"disk_size":"27M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.3,"import_time_s":0.99,"mem_mb":16.9,"disk_size":"19M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":1.24,"mem_mb":16.8,"disk_size":"18M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":1.7,"import_time_s":0.42,"mem_mb":9.1,"disk_size":"14M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.6,"mem_mb":9.1,"disk_size":"14M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.84,"mem_mb":16.4,"disk_size":"23.2M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.96,"mem_mb":16.4,"disk_size":"23.4M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":1.01,"mem_mb":17.3,"disk_size":"17.8M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":1.2,"mem_mb":17.2,"disk_size":"17.7M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.49,"mem_mb":9.6,"disk_size":"13.5M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.55,"mem_mb":9.6,"disk_size":"13.4M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":3.3,"import_time_s":0.86,"mem_mb":16.4,"disk_size":"25M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":1.52,"mem_mb":16.4,"disk_size":"26M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.3,"import_time_s":0.97,"mem_mb":17.3,"disk_size":"18M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":1.29,"mem_mb":17.2,"disk_size":"18M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":1.7,"import_time_s":0.41,"mem_mb":9.6,"disk_size":"14M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.59,"mem_mb":9.6,"disk_size":"14M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.14,"mem_mb":5.9,"disk_size":"19.3M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.2,"mem_mb":5.9,"disk_size":"19.3M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.68,"mem_mb":12.7,"disk_size":"23.1M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.77,"mem_mb":12.7,"disk_size":"23.1M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.15,"mem_mb":5.9,"disk_size":"19.3M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.17,"mem_mb":5.9,"disk_size":"19.3M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.1,"import_time_s":0.14,"mem_mb":5.9,"disk_size":"20M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"asyncio_client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.16,"mem_mb":5.9,"disk_size":"20M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.9,"import_time_s":0.6,"mem_mb":12.7,"disk_size":"24M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"client","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.72,"mem_mb":12.7,"disk_size":"24M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.1,"import_time_s":0.13,"mem_mb":5.9,"disk_size":"20M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"python-socketio","exit_code":0,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":0.18,"mem_mb":5.9,"disk_size":"20M"}]}}