I missed typing
It's been 5 years since I really wrote anything in Python. Recently, I wasted time coming up with a solver for the NYT's game, Letter Boxed. It is a somewhat interesting backtracking and trie problem but the thing I found most unnatural was the lack of knowing what on earth the types of the things I am dealing with are.
Using Go for the past 2.5 years and C# before that, we take for granted strongly typed languages. Python has gotten better with the ability to add type hints, but knowing in the back of my mind that anything could be anything is unnerving.