The only tool that gets remotely irritable about it is the one we use for diff reviewing, afaict? > I also don't think an 80 character line limit is a bad thin

The only tool that gets remotely irritable about it is the one we use for diff reviewing, afaict? > I also don't think an 80 character line limit is a bad thing: small well defined functions that do only one thing are good. Long lines often encourage people to want to nest code deeply (which is terrible!) or to write complex one-liners, and that + list comprehensions is a dangerous pairing. Python already starts you out at a nest of 2-4 characters, so we don't even get the full 80. But honestly I don't think a 100 character line is going to doom us all to hyper-nested expressions.