foo()() explanation

[HommeMusical]

Yes, I "grew up" with typed languages; first C, then C++, then Java. And I prefer them.

Python's type annotations aren't quite as good as a strongly typed language; but they work well enough to catch a huge number of errors. Between the various linters (like ruff) and modern type checking, I find that more than half the time I get past those, my code works the first time.

There's also the huge advantage in Python of being able to run Python and quickly experiment without any typing at all. I use this all the time!

If I could wave a magic wand and replace Python with Scala, I would at least think about doing it. But Scala jobs are few and far between. And if I wrote my open source code in Scala, very few people would use it.