Remove flake8 W503 from docs as it is ignored by default

[jdufresne]

Fixes #1660

[cooperlees]

Thanks. LGTM! Will let our more stringent documentation overlords find something tho :D

[ichard26]

I found a few things, they aren't related to your PR but hey @cooperlees I still found something! 😅

Other than that, looks good to me. Thanks! 🎉

[ichard26]

This link doesn't make sense anymore since the docs were refactored.

Suggested change

	# See https://github.com/psf/black/blob/master/README.md#line-length for more details
	# See https://github.com/psf/black/blob/master/docs/the_black_code_style.md#line-length for more details

[ichard26]

Please also update the link at line 35 of docs/compatible_configs.md to https://github.com/psf/black/blob/master/docs/the_black_code_style.md#how-black-wraps-lines. (you can't comment on non modified code using the PR review UI 🙁)

[jdufresne]

Thanks for the review. I applied the suggested changes.

[fredrikaverpil]

Is it possible that you forgot to remove W503 from the official docs?
https://black.readthedocs.io/en/stable/compatible_configs.html#id1

[ichard26]

Maybe have a look at the master documentation. The changes will go live on the stable (and default) branch on a new release.
https://black.readthedocs.io/en/latest/compatible_configs.html#id1

[scottfurry]

Suspect regression. Using v 4.0.1 (Gentoo X86_64). Having just installed black (v22.1.0), reformatting produced multiple W503 messages. Attempted to utilize extended-ignore and reloaded/rescanned project. Warnings persisted. I ensured no W503/W504 ignores were present in code or configuration. Only after adding explicitly W503 to extended-ignore would flake8 be satisfied.

[fredrikaverpil]

I'm on black 22.1.0, Python 3.10 (macOS M1 ARM) and I can't remove the W503 ignore from my .flake8 config file, or I'll get a bunch of:

$ poetry run flake8 src tests
[redacted].py:835:17: W503 line break before binary operator