There are currently no python libraries for webdriver-bidi. The webdriver npm module is a lot of overhead, and we want to wrap it through a line-based node subprocess.
Check how much that actually does for us – the BiDi spec is defined in terms of the direct websocket (REST-ish) protocol, and it's rather easy to just do that directly in Python. Check how that would look like.
Even if that turns out to be not practical, it'd be good to at least understand what additional value/logic the JS libraries give us on top of the protocol.