This is the kind of thing that happens when a language that used to be niche starts gaining more widespread use. People from other languages come along and want

This is the kind of thing that happens when a language that used to be niche starts gaining more widespread use. People from other languages come along and want the niceties they enjoy to exist in the new language they are learning. The same thing happened to JavaScript; it used to just be a browser language for running scripts, and then it turned into a server side language with a module system and everything else. There were a lot of growing pains involved in that transition. Now people who use other languages are coming to Python and thinking "Wouldn't it be great if..." and that's how Python the language is going to evolve. But we're going to have to go through this interim phase of awkward adolescence before type annotations mature as a feature.