Sorry for the late reply. I more or less abandonded this kata. I now couldn't approve the Python translataion anymore because something was outdated, and because of Codewars' overly strict, simplistic and rather annoying approach to translations: If there's even the tiniest problem with a translation, I can't approve it, but I also can't fix the problem, because I can't edit the translation in even the smallest way. That's just so dumb and frustrating... :-(

Anyway, I copied the translation and now published it. Thanks to everyone involved!