Best way to combine Python (backend) and d3.js to create a real-time data visualisation [on hold]

I am looking for is the best way to combine Python (backend) and d3.js to create a real-time data visualisation

I have coded a tool in Python that produces data about a network and updates the information potentially in real-time. I would like to show the development of the network in real-time in the browser. There will be a few thousand nodes.

The Python tool produces a Pandas dataframe like this (I am not sure where the aggregation step should take place though):

The output should be a (real-time interactive) network like this:

How do I "connect" Python with d3.js so that the graph can be visualised in (near) real-time?

Even hints would be very much appreciated.