Should I take a python class at school? Is it a good skill to have to get the promotion?
Yes
Python is super easy... you don’t even need a class. Don’t learn a language to get promoted. Be good at solving problems. You can do that in any language
I only know a little bit of R.
It’s the libraries in python and R that matter.
Firstly, it depends what position/domain are you seeking. Secondly, interviews are not language specific.
Yes. Since the languages don't matter, learn an easy one. Take the class, and I or check the web for free material.
Yeah sure I guess learning about snakes is useful
Lol