Consider using black to normalize coding style

[kgriffs]

See: https://github.com/ambv/black

[kgriffs]

(...as suggested by tribals and carlodri in the chat room.)

[carlodri]

thanks @kgriffs! My experience, albeit somehow limited (I'm not a professional programmer), is that black is really helpful in automating cleanness, readability and "pep8-ness" of your code, like set-and-forget-about-style.

[tribals]

Black has one major advantage: it stops (and prevents) people from arguing about coding style. We in our company adopted it very smoothly and have not regretted yet (about a half year).