I think experienced programmers may have a different route to a degree. A number of years in one language, for instance, including fairly complex production settings, etc. and having to transition to python for a new job or company or decision from someone higher up the food chain. I did it from a largely perl and PHP background for both Rust (a tiny bit of experience before, but not a super complex environment) and Go (zero to prod in a few months dropping in rewritten portions of the former PHP monolith). I can talk about memory usage, race conditions, etc. but would be completely screwed with anything internal to python or its quirks.