astral-sh/ruff 0.9.4

on GitHub

Release Notes

Preview features

• [airflow] Extend airflow context parameter check for BaseOperator.execute (AIR302) (#15713)
• [airflow] Update AIR302 to check for deprecated context keys (#15144)
• [flake8-bandit] Permit suspicious imports within stub files (S4) (#15822)
• [pylint] Do not trigger PLR6201 on empty collections (#15732)
• [refurb] Do not emit diagnostic when loop variables are used outside loop body (FURB122) (#15757)
• [ruff] Add support for more re patterns (RUF055) (#15764)
• [ruff] Check for shadowed map before suggesting fix (RUF058) (#15790)
• [ruff] Do not emit diagnostic when all arguments to zip() are variadic (RUF058) (#15744)
• [ruff] Parenthesize fix when argument spans multiple lines for unnecessary-round (RUF057) (#15703)

Rule changes

• Preserve quote style in generated code (#15726, #15778, #15794)
• [flake8-bugbear] Exempt NewType calls where the original type is immutable (B008) (#15765)
• [pylint] Honor banned top-level imports by TID253 in PLC0415. (#15628)
• [pyupgrade] Ignore is_typeddict and TypedDict for deprecated-import (UP035) (#15800)

CLI

• Fix formatter warning message for flake8-quotes option (#15788)
• Implement tab autocomplete for ruff config (#15603)

Bug fixes

• [flake8-comprehensions] Do not emit unnecessary-map diagnostic when lambda has different arity (C417) (#15802)
• [flake8-comprehensions] Parenthesize sorted when needed for unnecessary-call-around-sorted (C413) (#15825)
• [pyupgrade] Handle end-of-line comments for quoted-annotation (UP037) (#15824)

Documentation

• Add missing config docstrings (#15803)
• Add references to trio.run_process and anyio.run_process (#15761)
• Use uv init --lib in tutorial (#15718)

Contributors

• @AlexWaygood
• @Garrett-R
• @InSyncWithFoo
• @JelleZijlstra
• @Lee-W
• @MichaReiser
• @charliermarsh
• @dcreager
• @dhruvmanila
• @dylwil3
• @leotaku
• @marekhanus
• @mishamsk
• @naslundx
• @ntBre
• @renovate
• @sharkdp
• @sunank200
• @tjkuson
• @zanieb

Install ruff 0.9.4

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.9.4/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy ByPass -c "irm https://github.com/astral-sh/ruff/releases/download/0.9.4/ruff-installer.ps1 | iex"

Download ruff 0.9.4