Yea good luck trying to pick that line apart as a beginner.

I could imagine myself as a beginner to python looking at that and thinking things like: Why does 'libpaths?' end in a '?'? What is the ??, is it an operator or something else? Neither would be particularly easily searchable things (e.g. <your fav. search engine>: "python ??" )

> libpaths = libpaths?.split(":") ?? []