While all of this is still true; it is outclassed by https://github.com/Carlovo/straight_to_the_money or any other more modern Python dev flow.
This is a very basic bubble wrap you can fold yourself in while developing python. If you want more, refer to the docs of the tools installed. Or, if you want alternatives, scour your favorite tech blog post website.
Mind the fact that you are setting some evanescent and dynamic env vars and stuff per folder along the way. Make a nifty script or alias or something for yourself, so you don't have to copy-paste this stuff all the time.
Correct order: