It's funny how people who learn evented programming in scripting languages like Python feel like they've discovered some new hidden concept. No competent systems developer fails to understand what select() does. Suggesting that the author was't "acquainted" with select says more about this comment than about the author of the post it comments on.

>It stalls in Python because the author is not acquainted with non-blocking system programming

Citation needed.

How about "he is acquainted but can't be bothered to use it retrofitted to a language not tailor made for it"?

>As to why a software developer who did not invest some minimal time into learning basic system programming feels qualified to write a blog post about this topic is another question.

And why you think you're any better than him based on a short blog post (and especially one in which he does not delve into why the Python version was slower or says it would be impossible to make it faster, just mentions it's speed in passing), is beyond me.

Maybe cut down the snark?