Bump ruff from 0.8.6 to 0.9.1

[dependabot]

Bumps ruff from 0.8.6 to 0.9.1.

Release notes

Sourced from ruff's releases.

0.9.0

Release Notes

Check out the blog post for a migration guide and overview of the changes!

Breaking changes

Ruff now formats your code according to the 2025 style guide. As a result, your code might now get formatted differently. See the formatter section for a detailed list of changes.

This release doesn’t remove or remap any existing stable rules.

Stabilization

The following rules have been stabilized and are no longer in preview:

• stdlib-module-shadowing (A005). This rule has also been renamed: previously, it was called builtin-module-shadowing.
• builtin-lambda-argument-shadowing (A006)
• slice-to-remove-prefix-or-suffix (FURB188)
• boolean-chained-comparison (PLR1716)
• decimal-from-float-literal (RUF032)
• post-init-default (RUF033)
• useless-if-else (RUF034)

The following behaviors have been stabilized:

• pytest-parametrize-names-wrong-type (PT006): Detect pytest.parametrize calls outside decorators and calls with keyword arguments.
• module-import-not-at-top-of-file (E402): Ignore pytest.importorskip calls between import statements.
• mutable-dataclass-default (RUF008) and function-call-in-dataclass-default-argument (RUF009): Add support for attrs.
• bad-version-info-comparison (PYI006): Extend the rule to check non-stub files.

The following fixes or improvements to fixes have been stabilized:

• redundant-numeric-union (PYI041)
• duplicate-union-members (PYI016)

Formatter

This release introduces the new 2025 stable style (#13371), stabilizing the following changes:

• Format expressions in f-string elements (#7594)
• Alternate quotes for strings inside f-strings (#13860)
• Preserve the casing of hex codes in f-string debug expressions (#14766)
• Choose the quote style for each string literal in an implicitly concatenated f-string rather than for the entire string (#13539)
• Automatically join an implicitly concatenated string into a single string literal if it fits on a single line (#9457)
• Remove the ISC001 incompatibility warning (#15123)
• Prefer parenthesizing the assert message over breaking the assertion expression (#9457)
• Automatically parenthesize over-long if guards in match case clauses (#13513)
• More consistent formatting for match case patterns (#6933)
• Avoid unnecessary parentheses around return type annotations (#13381)

... (truncated)

Changelog

Sourced from ruff's changelog.

0.9.1

Preview features

• [pycodestyle] Run too-many-newlines-at-end-of-file on each cell in notebooks (W391) (#15308)
• [ruff] Omit diagnostic for shadowed private function parameters in used-dummy-variable (RUF052) (#15376)

Rule changes

• [flake8-bugbear] Improve assert-raises-exception message (B017) (#15389)

Formatter

• Preserve trailing end-of line comments for the last string literal in implicitly concatenated strings (#15378)

Server

• Fix a bug where the server and client notebooks were out of sync after reordering cells (#15398)

Bug fixes

• [flake8-pie] Correctly remove wrapping parentheses (PIE800) (#15394)
• [pyupgrade] Handle comments and multiline expressions correctly (UP037) (#15337)

0.9.0

Check out the blog post for a migration guide and overview of the changes!

Breaking changes

Ruff now formats your code according to the 2025 style guide. As a result, your code might now get formatted differently. See the formatter section for a detailed list of changes.

This release doesn’t remove or remap any existing stable rules.

Stabilization

The following rules have been stabilized and are no longer in preview:

• stdlib-module-shadowing (A005). This rule has also been renamed: previously, it was called builtin-module-shadowing.
• builtin-lambda-argument-shadowing (A006)
• slice-to-remove-prefix-or-suffix (FURB188)
• boolean-chained-comparison (PLR1716)
• decimal-from-float-literal (RUF032)
• post-init-default (RUF033)
• useless-if-else (RUF034)

The following behaviors have been stabilized:

• pytest-parametrize-names-wrong-type (PT006): Detect pytest.parametrize calls outside decorators and calls with keyword arguments.

... (truncated)

Commits

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