How to write code to catch null exception in python

Question

I have below code, which I want to write in a way so that it catches proper exception when none is passed when argument value is required.

  def MyFunction(MyArg1, MyArg2):

     if not MyArg2:
          raise ?Error?

I think it will be type error but I need the exception to be more explicit

Answer 1

Maybe try this

if key is None:
    raise TypeError

or

if key is None:
    print("There is no key.")

Answer 2

This is what I have trieD

    if MyArg2 is None:
    raise TypeError