1, 2, 4, 5, and 8 all seem to me like mistakes only / primarily made by beginners. I can't see an article aimed at primarily intermediate Python users spending

1, 2, 4, 5, and 8 all seem to me like mistakes only / primarily made by beginners. I can't see an article aimed at primarily intermediate Python users spending time on them. 3 is a really easy mistake to make for anyone (which is why the syntax was changed). 6, 7, 9 and 10 are more obscure, and where I really appreciate this article -- and they definitely can be issues for more experienced Python devs.