short videos or long videos

If I'm explaining a programming language (Python) It would take me at least 2 hours to fully explain it. Python is divided into many mini topics like data structure, variables, functions, etc... So should I make a playlist and each video will cover one of those mini topics? (Like The Net Ninja...

Some of the best channels out there started small by making short videos almost like a teaser/trailer of their future content then as time went on they started creating longer videos for more watch time, etc. CinemaSins, Domics, etc. did this. Then there are channels who went longform right off...