chore(deps): update dependency black to v25

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
black (changelog)	==24.10.0 -> ==25.1.0
black (changelog)	==24.8.0 -> ==25.1.0

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Release Notes

psf/black (black)

v25.1.0

Compare Source

Highlights

This release introduces the new 2025 stable style (#​4558), stabilizing
the following changes:

• Normalize casing of Unicode escape characters in strings to lowercase (#​2916)
• Fix inconsistencies in whether certain strings are detected as docstrings (#​4095)
• Consistently add trailing commas to typed function parameters (#​4164)
• Remove redundant parentheses in if guards for case blocks (#​4214)
• Add parentheses to if clauses in case blocks when the line is too long (#​4269)
• Whitespace before # fmt: skip comments is no longer normalized (#​4146)
• Fix line length computation for certain expressions that involve the power operator (#​4154)
• Check if there is a newline before the terminating quotes of a docstring (#​4185)
• Fix type annotation spacing between * and more complex type variable tuple (#​4440)

The following changes were not in any previous release:

• Remove parentheses around sole list items (#​4312)
• Generic function definitions are now formatted more elegantly: parameters are
  split over multiple lines first instead of type parameter definitions (#​4553)

Stable style

• Fix formatting cells in IPython notebooks with magic methods and starting or trailing
  empty lines (#​4484)
• Fix crash when formatting with statements containing tuple generators/unpacking
  (#​4538)

Preview style

• Fix/remove string merging changing f-string quotes on f-strings with internal quotes
  (#​4498)
• Collapse multiple empty lines after an import into one (#​4489)
• Prevent string_processing and wrap_long_dict_values_in_parens from removing
  parentheses around long dictionary values (#​4377)
• Move wrap_long_dict_values_in_parens from the unstable to preview style (#​4561)

Packaging

• Store license identifier inside the License-Expression metadata field, see
  PEP 639. (#​4479)

Performance

• Speed up the is_fstring_start function in Black's tokenizer (#​4541)

Integrations

• If using stdin with --stdin-filename set to a force excluded path, stdin won't be
  formatted. (#​4539)

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[code-review-assist]

Hi team,

I'm currently reviewing this pull request and will provide my feedback shortly. In the meantime, here's a summary for you and other reviewers to quickly get up to speed:

This pull request, submitted by Renovate bot, updates the black dependency across the project. The intent is to upgrade the code formatter to version 25.1.0 from versions 24.8.0 and 24.10.0, depending on the python version.

Here's a breakdown of the changes:

• Dependency Update: The black dependency in compute/client_library/requirements.txt is updated to version 25.1.0 for both Python versions 3.9 and above, and below 3.9.

The changes are limited to updating the version number in the requirements file. No code changes are directly introduced by this PR, only an indirect change via the updated formatter.

Release notes for black v25.1.0 highlight numerous bug fixes and improvements to the formatter's stability and performance, including a new stable style for 2025 and various fixes related to string processing, f-strings, and type annotations. You can find the full details in the PR description.

I'll provide a more detailed review shortly.

Meanwhile, a little poem to brighten your day:

Code flows like a river,
Updates bring a fresh new spring,
Bugs flee in the night.

Best,
Gemini

[code-review-assist]

This pull request updates the black dependency to v25.1.0. It's good practice to keep dependencies up-to-date, especially for development tools like linters and formatters. Upgrading to the latest version of black ensures that you're using the most recent features and bug fixes, and helps maintain consistency in code style across the project. Since this is an automated PR from Renovate, I've checked that the changes are limited to updating the version numbers in the requirements.txt file, and that the new version numbers are correct.

I've also reviewed the changelog for black v25.1.0 and it looks like there are some significant changes introduced in the 2025 stable style, including changes to trailing commas, parentheses handling, and docstring formatting. It's important to be aware of these changes as they might affect the formatting of your codebase. After upgrading, it's recommended to run black on your codebase to apply the new formatting rules and ensure consistency. You might also want to consider adding a step to your CI/CD pipeline to automatically format code with black on each commit or pull request. This helps prevent style inconsistencies from creeping into the codebase over time. The AUTHORING_GUIDE.md file recommends using black and provides instructions for running it locally and in Docker, which is helpful.