My point with JS is more that the JS community sees no problem and will actively rewrite vast swaths of code to use features that are not yet supported in brows

My point with JS is more that the JS community sees no problem and will actively rewrite vast swaths of code to use features that are not yet supported in browsers. Hence the extensive use of polyfills and transpilers. Major language changes are generally seen as a good thing (which they mostly are in JS' case). With Python I don't get the same feeling, they seem more resistant to change in general. I don't think it's just that Python has more so-called "non-programmers" (meaning, data science and math people). Most of the libraries for these things are made by full-time programmers anyway. Perhaps the idea that "there's only one way to do it" brought about a "the current way is good enough, why rewrite in a new one?" attitude. But anyway, I'm not familiar enough, just an outside perspective.