[gullevek]

That is all nice. And then python updates from 3.9.n to 3.9.n+1 and nothing works anymore.

brew sucks with python.

[saila]

I've only run into issues like this when upgrading from Python 3.X to 3.Y, which is to be expected, and Homebrew lets you install a specific 3.X (e.g. brew install python@3.9) if you don't need/want be on the latest version.