cant

Thank you! I dislike style nazis too, e.g. carping when Peter Norvig's code won't pass PEP 8. I'm just leery of the expected cost in this kind of case. It can go on working for years until some new complication or some change in the ecosystem makes it suddenly create a really weird problem. Or when you want to try moving to a fancy new Python implementation, you find you have this friction. Matter of judgement where some chance of such messes is paid for by what it can do for you. (Of course when it's less "load bearing" the balance shifts.) With https://coverage.readthedocs.io/en/stable/ for example, it used bytecode hacks to do something you couldn't do otherwise, and that's unlikely to mess you up. I have had old C programs go crazy years later in a really hard to debug way because newer compilers may interpret your code like your ex-w