With what help to implement the "technology tree" (directed graph), as in a strategic game?

Question

Python

If you had to implement a "tech tree" like in a strategy game like Civilization, what library/package would you use?
Requirements:
- A node (rectangle) must store and visually change the "reached / not reached" state,
- When you click on a node, extra branches that you need to go through to reach this node are highlighted (or hidden),
Desirable:
- Automatic building of a tree based on information about links (in file, json)
- Various types of links, hiding branches by link types.
Maybe there is already something ready in open source?
If not, then maybe. Is there a library for building beautiful visualizations that can be used for these purposes? It would be nice if it was in Python, but JS is also possible.

Answer 1

1. Treant.js ( demo )
2. On d3.js: here (but you need to edit a little)