hub / github.com/miguelgrinberg/python-socketio

github.com/miguelgrinberg/python-socketio @v5.16.3

repository ↗ · DeepWiki ↗ · release v5.16.3 ↗ · + Follow

1,399 symbols 5,286 edges 113 files 217 documented · 16% ● updated 16d agov5.16.3 · 2026-06-15★ 4,3679 open issues

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README

python-socketio

Python implementation of the Socket.IO realtime client and server.

Version compatibility

The Socket.IO protocol has been through a number of revisions, and some of these introduced backward incompatible changes, which means that the client and the server must use compatible versions for everything to work.

If you are using the Python client and server, the easiest way to ensure compatibility is to use the same version of this package for the client and the server. If you are using this package with a different client or server, then you must ensure the versions are compatible.

The version compatibility chart below maps versions of this package to versions of the JavaScript reference implementation and the versions of the Socket.IO and Engine.IO protocols.

JavaScript Socket.IO version	Socket.IO protocol revision	Engine.IO protocol revision	python-socketio version
0.9.x	1, 2	1, 2	Not supported
1.x and 2.x	3, 4	3	4.x
3.x and 4.x	5	4	5.x

Resources

Documentation
PyPI
Change Log
Questions? See the questions others have asked on Stack Overflow, or ask your own question.

Core symbols most depended-on inside this repo

emit

called by 179

src/socketio/client.py

encode

called by 178

src/socketio/packet.py

called by 160

src/socketio/base_client.py

is_connected

called by 89

src/socketio/base_manager.py

_handle_eio_message

called by 80

src/socketio/server.py

_handle_eio_message

called by 76

src/socketio/async_server.py

get

called by 69

examples/server/tornado/app.py

enter_room

called by 55

src/socketio/server.py

Shape

Method 1,143

Function 147

Class 87

Route 22

Languages

Python100%

TypeScript1%

Modules by API surface

tests/common/test_client.py116 symbols

tests/common/test_server.py106 symbols

tests/async/test_server.py102 symbols

tests/async/test_client.py99 symbols

tests/common/test_pubsub_manager.py53 symbols

tests/async/test_pubsub_manager.py51 symbols

tests/common/test_packet.py40 symbols

src/socketio/async_server.py36 symbols

tests/common/test_manager.py34 symbols

tests/async/test_manager.py33 symbols

src/socketio/server.py33 symbols

tests/async/test_namespace.py31 symbols

Dependencies from manifests, versioned

@socket.io/admin-ui0.5.1 · 1×

express4.22.2 · 1×

smoothie1.19.0 · 1×

socket.io4.8.0 · 1×

socket.io-client4.8.3 · 1×

Click7.1.2 · 1×

Django4.2.30 · 1×

Flask1.0.2 · 1×

Jinja23.1.6 · 1×

MarkupSafe1.1.0 · 1×

Werkzeug2.2.3 · 1×

aiofiles0.3.0 · 1×

For agents

$ claude mcp add python-socketio \
  -- python -m otcore.mcp_server <graph>

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