ruff 0.15.6

on Python PyPI

Release Notes

Released on 2026-03-12.

Preview features

• Add support for lazy import parsing (#23755)
• Add support for star-unpacking of comprehensions (PEP 798) (#23788)
• Reject semantic syntax errors for lazy imports (#23757)
• Drop a few rules from the preview default set (#23879)
• [airflow] Flag Variable.get() calls outside of task execution context (AIR003) (#23584)
• [airflow] Flag runtime-varying values in DAG/task constructor arguments (AIR304) (#23631)
• [flake8-bugbear] Implement delattr-with-constant (B043) (#23737)
• [flake8-tidy-imports] Add TID254 to enforce lazy imports (#23777)
• [flake8-tidy-imports] Allow users to ban lazy imports with TID254 (#23847)
• [isort] Retain lazy keyword when sorting imports (#23762)
• [pyupgrade] Add from __future__ import annotations automatically (UP006) (#23260)
• [refurb] Support newline parameter in FURB101 for Python 3.13+ (#23754)
• [ruff] Add os-path-commonprefix (RUF071) (#23814)
• [ruff] Add unsafe fix for os-path-commonprefix (RUF071) (#23852)
• [ruff] Limit RUF036 to typing contexts; make it unsafe for non-typing-only (#23765)
• [ruff] Use starred unpacking for RUF017 in Python 3.15+ (#23789)

Bug fixes

• Fix --add-noqa creating unwanted leading whitespace (#23773)
• Fix --add-noqa breaking shebangs (#23577)
• [formatter] Fix lambda body formatting for multiline calls and subscripts (#23866)
• [formatter] Preserve required annotation parentheses in annotated assignments (#23865)
• [formatter] Preserve type-expression parentheses in the formatter (#23867)
• [flake8-annotations] Fix stack overflow in ANN401 on quoted annotations with escape sequences (#23912)
• [pep8-naming] Check naming conventions in match pattern bindings (N806, N815, N816) (#23899)
• [perflint] Fix comment duplication in fixes (PERF401, PERF403) (#23729)
• [pyupgrade] Properly trigger super change in nested class (UP008) (#22677)
• [ruff] Avoid syntax errors in RUF036 fixes (#23764)

Rule changes

• [flake8-bandit] Flag S501 with requests.request (#23873)
• [flake8-executable] Fix WSL detection in non-Docker containers (#22879)
• [flake8-print] Ignore pprint calls with stream= (#23787)

Documentation

• Update docs for Markdown code block formatting (#23871)
• [flake8-bugbear] Fix misleading description for B904 (#23731)

Contributors

• @zsol
• @carljm
• @ntBre
• @Bortlesboat
• @sososonia-cyber
• @chirizxc
• @leandrobbraga
• @11happy
• @Acelogic
• @anishgirianish
• @amyreese
• @xvchris
• @charliermarsh
• @getehen
• @Dev-iL

Install ruff 0.15.6

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.6/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.6/ruff-installer.ps1 | iex"

Download ruff 0.15.6

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>