Migrate from flake8 to black

[chayim]

Currently in redis-py we rely on flake8 for lint checking. The goal in migrating to black is to enforce opinionated, community-driven code formatting, that is PEP 8 compliant.

• Changing our tox linter to run black locally, so that changes can be examined prior to commit
• Enabling a pre-commit check with github hooks, for the local repo, so that ideally nothing is committed that doesn't pass black.
• Changing our github action to run black checks (i.e fail when black generates changes)

[WisdomPill]

I would gladly start contributing on this repository by taking on this issue!

My two cents, I think there should not be a migration but an addition, and also add isort.

In my work, personal projects and oss work I use all of them, they all serve different purposes and catch different anti-patterns

[chayim]

Awesome! Very much looking forward to seeing this in action - especially as I haven't really seen isort in production yet. I assigned this to you, since you asked :)

[chayim]

@WisdomPill Any idea when you think you'd like to attack this?

[WisdomPill]

Hello, sorry, I did not have much free time in the past weekends, I should be able to work on it the next weekend, if there is somebody that is sure could work on it I do not mind stepping back

[chayim]

@WisdomPill all good! Let's see where you end up - I'd love you to contribute if you're up to it and have that time! If it's post next-weekend as you've said, let's revisit. Nothing is burning.