My problem with Python, especially when reading someone else's code, or my own old bad code, is that I find that Python doesn't fit [my] brain.

The lack of typing (in my experience you always end up with a bunch of libraries that don't have type hints) means I spend most of my time just figuring out what I'm supposed to pass to a function (I hate the django docs. Give me something like docs.rs where I can quickly scan what functions something implements, and see what they accept and what they return instead of forcing me to read an 800 page novel that STILL doesn't give you that basic info), and writing tests and trying to guard against passing the wrong thing around.