There are two proof of concept notebooks in
gitlab
WebSocket_Py.ipynb and WebSocket_Jl.ipynb are clients receiving data on a Websocket connection
producer.py is a server sending out data
The server needs to be started first. The notebooks start it with a Linux Popen system call.
Start it by hand otherwise.
panel and WebSocket Discussion in discourse
Additional context
There are two proof of concept notebooks in gitlab