[kibwen]

Python is so far removed from C that I struggle to think of anything about C that would help you to better write or understand Python. If anything, it might make your Python worse if you try to import C idioms to Python.

If what you really want is to write or read C, then of course you should learn C.

[medo-bear]

given that python is usually implemented in c (look up cpython), knowing c can help you at least understand internals of python