Bump black from 21.7b0 to 21.8b0

[dependabot]

Bumps black from 21.7b0 to 21.8b0.

Release notes

Sourced from black's releases.

21.8b0

Black

• Add support for formatting Jupyter Notebook files (#2357)
• Move from appdirs dependency to platformdirs (#2375)
• Present a more user-friendly error if .gitignore is invalid (#2414)
• The failsafe for accidentally added backslashes in f-string expressions has been hardened to handle more edge cases during quote normalization (#2437)
• Avoid changing a function return type annotation's type to a tuple by adding a trailing comma (#2384)
• Parsing support has been added for unparenthesized walruses in set literals, set comprehensions, and indices (#2447).
• Pin setuptools-scm build-time dependency version (#2457)
• Exclude typing-extensions version 3.10.0.1 due to it being broken on Python 3.10 (#2460)

Blackd

• Replace sys.exit(-1) with raise ImportError as it plays more nicely with tools that scan installed packages (#2440)

Integrations

• The provided pre-commit hooks no longer specify language_version to avoid overriding default_language_version (#2430)

Changelog

Sourced from black's changelog.

21.8b0

Black

• Add support for formatting Jupyter Notebook files (#2357)
• Move from appdirs dependency to platformdirs (#2375)
• Present a more user-friendly error if .gitignore is invalid (#2414)
• The failsafe for accidentally added backslashes in f-string expressions has been hardened to handle more edge cases during quote normalization (#2437)
• Avoid changing a function return type annotation's type to a tuple by adding a trailing comma (#2384)
• Parsing support has been added for unparenthesized walruses in set literals, set comprehensions, and indices (#2447).
• Pin setuptools-scm build-time dependency version (#2457)
• Exclude typing-extensions version 3.10.0.1 due to it being broken on Python 3.10 (#2460)

Blackd

• Replace sys.exit(-1) with raise ImportError as it plays more nicely with tools that scan installed packages (#2440)

Integrations

• The provided pre-commit hooks no longer specify language_version to avoid overriding default_language_version (#2430)

Commits

• See full diff in compare view

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[nicholascar]

@ashleysommer were you keen to fix on a particular version of black or are you happy to update as per this PR?

[ashleysommer]

When I pinned it to 21.6b0, I think we decided that would be the last jump for a while, and we'd use that as "the black version" for rdflib.
That is what is listed as the "required-version" in black.toml so, using a newer version won't work without throwing errors.
Unfortunately it looks like someone already bumped black to 21.7b0 in requirements.dev.txt in July, so that's already broken.

[ashleysommer]

Basically, if we ever need to bump our black version for whatever reason (security fix, major bug, etc) the steps required are:

1. Update pinned version in requirements.dev.txt
2. Change required-version in black.toml
3. Update instructions in developers.rst to reflect new rdflib black version.
4. Re-run black on all py files in ./rdflib in order to ensure they are compliant with the new version
5. Commit all of the above changes in a single PR.
   5b) Double check drone output to ensure there's not errors thrown with new Black version in the CI run.

[nicholascar]

someone already bumped black to 21.7b0 in requirements.dev.txt in July

Oops yes, that was me. It was some vague memory of that which prompted me to check now. Reverting to 21.6b0 with PR #1400

[nicholascar]

Will reject dependabot black updates until the next release

[nicholascar]

Closing as we will not be updating black between releases

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.

[ashleysommer]

@dependabot ignore this major version

[dependabot]

OK, I won't notify you about version 21.x.x again, unless you re-open this PR or update to a 21.x.x release yourself.