Disclaimer: If you write Python on a daily basis you will find nothing new in this post. It’s for people who occasionally use Python like Ops guys and forget/misuse its import system. Nonetheless, the code is written with Python 3.6 type annotations to entertain an experienced Python reader. As usual, if you find any mistakes, please let me know!
Modules Let’s start with a common Python stanza of
if __name__ == '__main__': invoke_the_real_code()  A lot of people, and I’m not an exception, write it as a ritual without trying to understand it.