Update Twisted Coding Standard for Black

[twisted-trac]

	@twm reported
Trac ID	trac#9957
Type	enhancement
Created	2020-09-13 23:09:38Z

Cut most formatting details from the coding standard in favor of a reference to The Black Coding Standard. Reorganize as appropriate. Emphasize use of tox -e black-reformat.

Searchable metadata

trac-id__9957 9957
type__enhancement enhancement
reporter__twm twm
priority__normal normal
milestone__None None
branch__ 
branch_author__ 
status__closed closed
resolution__fixed fixed
component__core core
keywords__None None
time__1600038578657081 1600038578657081
changetime__1600975335653458 1600975335653458
version__None None
owner__Craig_Rodrigues__rodrigc_____ Craig Rodrigues <rodrigc@...>

[twisted-trac]

	@rodrigc commented

#1394

[twisted-trac]

	@rodrigc commented

Approved here: #1394 (review)

[twisted-trac]

	@rodrigc set owner to @rodrigc @rodrigc set status to closed

In changeset c3e3f6a

#!CommitTicketReference repository="" revision="c3e3f6ac6a1e1a3980fee2615bc28ec6678127c4"
Merge pull request #1394 from twisted/9957-rodrigc-coding-standard

Author: rodrigc
Reviewer: wsanchez
Fixes: ticket:9957

Change the Twisted Coding Standard to refer to the Black code style