Upgrade black to 21.4b0 and reformat

[srittau]

This introduces newlines before decorators.

[hauntsaninja]

I'd prefer we run with --skip-magic-trailing-comma that I added in this release, thoughts? Helps keep definitions compact when they fit on one line.

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

[srittau]

Unfortunately, there is a discrepancy between running black with --check --diff and running it without it when using skip_magic_trailing_comma = true, which makes it impossible to use this option for now.

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

[srittau]

I couldn't isolate the black problem so far, but the problem can be reproduced locally by running black --check --diff stdlib (showing diffs) and running black --check stdlib (saying all files unchanged).

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

[srittau]

Weirdly enough, if I copy my typeshed directory (just doing cp -r), black will be consistent in the new location. I have no time to investigate this further at the moment and suggest to start without skip_magic_trailing_comma for now.

[srittau]

Different computer:

srittau@blitz:~/Projekte$ diff -u --recursive typeshed typeshed2
srittau@blitz:~/Projekte$ 

(.venv-3.9) srittau@blitz:~/Projekte/typeshed$ black stubs/ stdlib/ --check
All done! ✨ 🍰 ✨
1334 files would be left unchanged.
(.venv-3.9) srittau@blitz:~/Projekte/typeshed$ 

(.venv-3.9) srittau@blitz:~/Projekte/typeshed2$ black stubs/ stdlib/ --check
would reformat stdlib/logging/config.pyi
would reformat stdlib/importlib/util.pyi
would reformat stdlib/distutils/filelist.pyi
would reformat stdlib/smtpd.pyi
would reformat stdlib/_typeshed/__init__.pyi
would reformat stubs/click/click/formatting.pyi
would reformat stubs/click-spinner/click_spinner/__init__.pyi
would reformat stubs/protobuf/google/protobuf/json_format.pyi
would reformat stdlib/ftplib.pyi
would reformat stubs/redis/redis/lock.pyi
would reformat stubs/waitress/waitress/compat.pyi
would reformat stubs/protobuf/google/protobuf/descriptor.pyi
would reformat stdlib/@python2/logging/__init__.pyi
would reformat stubs/JACK-Client/jack/__init__.pyi
would reformat stdlib/asyncio/base_events.pyi
would reformat stdlib/typing.pyi
would reformat stubs/redis/redis/client.pyi
Oh no! 💥 💔 💥
17 files would be reformatted, 1317 files would be left unchanged.
(.venv-3.9) srittau@blitz:~/Projekte/typeshed2$ 

I am stumped.

[srittau]

I merged the version without skip_magic_trailing_comma for now.