I don't know exactly why, but whenever I write something in Python I get extremely irritated. I'm always worried that I'm going to clobber the namespace somehow. Some functions like 'str' are extremely short and common, and happens to be a variable I always use for temporary variables. The forced indentation messes up the code when I want to debug something by commenting out a bunch of lines.
But sometimes there is a builtin module that makes something easier to do, so I am faced with a 'Kobayashi Maru', a no-win situation
I've never used Nim or Crystal. Rust is too complicated for me to bootstrap and not particularly compatible with older architectures as far as I remember (I believe had trouble with compiling 32-bit)