They're all inconsequential to code quality except for some like i++ vs ++i which isn't even style, it's syntax. preincrement before, postincrement after, not hard to remember
Syntax and style are tightly coupled in Python. It's not hard to remember i++ is the same as i+=1 or that if(bool) { can optionally have a line break between the guard and the brace. In other languages, you have more choices. If you have more choices and just type what comes to mind first, you're going to get stylistic inconsistencies.