Add black to ethpm

[kclowes]

What was wrong?

Black is finally stable, so pulling it in. One module at a time.

Related to Issue #1416

How was it fixed?

added the Black dependency, let it make any fixes.

Todo:

• Add entry to the release notes

Cute Animal Picture

[wiseaidev]

How about using pre-commit to automate formatting stuff?

[kclowes]

How about using pre-commit to automate formatting stuff?

@Harmouch101 That looks like a good option, but I'm going to hold off for now. If we decide running black is too clunky then I may pull it in. Thanks for the suggestion!

[pacrob]

lgtm!

[fselmo]

I was originally thinking we could set the line-length to 100 since that's been our standard for some time but I don't feel strongly about that. It still produces a lot of diff (even more I think). Maybe we should just let black do its thing?

This change would do that within pyproject.toml:

[tool.black]
line-length = 100

[fselmo]

lgtm! Excited for this addition. I just left one comment to think about before we start changing everything to black across the code base. But maybe we should just leave it all default black settings since that's kind of the point 😅 .

[pacrob]

... Maybe we should just let black do its thing?

+1 for default line length 88

[kclowes]

Okay, I'll leave line length at 88. Thanks!