ruff 0.13.1

on Python PyPI

Release Notes

Released on 2025-09-18.

Preview features

• [flake8-simplify] Detect unnecessary None default for additional key expression types (SIM910) (#20343)
• [flake8-use-pathlib] Add fix for PTH123 (#20169)
• [flake8-use-pathlib] Fix PTH101, PTH104, PTH105, PTH121 fixes (#20143)
• [flake8-use-pathlib] Make PTH111 fix unsafe because it can change behavior (#20215)
• [pycodestyle] Fix E301 to only trigger for functions immediately within a class (#19768)
• [refurb] Mark single-item-membership-test fix as always unsafe (FURB171) (#20279)

Bug fixes

• Handle t-strings for token-based rules and suppression comments (#20357)
• [flake8-bandit] Fix truthiness: dict-only ** displays not truthy for shell (S602, S604, S609) (#20177)
• [flake8-simplify] Fix diagnostic to show correct method name for str.rsplit calls (SIM905) (#20459)
• [flynt] Use triple quotes for joined raw strings with newlines (FLY002) (#20197)
• [pyupgrade] Fix false positive when class name is shadowed by local variable (UP008) (#20427)
• [pyupgrade] Prevent infinite loop with I002 and UP026 (#20327)
• [ruff] Recognize t-strings, generators, and lambdas in invalid-index-type (RUF016) (#20213)

Rule changes

• [RUF102] Respect rule redirects in invalid rule code detection (#20245)
• [flake8-bugbear] Mark the fix for unreliable-callable-check as always unsafe (B004) (#20318)
• [ruff] Allow dataclass attribute value instantiation from nested frozen dataclass (RUF009) (#20352)

CLI

• Add fixes to output-format=sarif (#20300)
• Treat panics as fatal diagnostics, sort panics last (#20258)

Documentation

• [ruff] Add analyze.string-imports-min-dots to settings (#20375)
• Update README.md with Albumentations new repository URL (#20415)

Other changes

• Bump MSRV to Rust 1.88 (#20470)
• Enable inline noqa for multiline strings in playground (#20442)

Contributors

• @chirizxc
• @danparizher
• @IDrokin117
• @amyreese
• @AlexWaygood
• @dylwil3
• @njhearp
• @woodruffw
• @dcreager
• @TaKO8Ki
• @BurntSushi
• @salahelfarissi
• @MichaReiser

Install ruff 0.13.1

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.13.1/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.13.1/ruff-installer.ps1 | iex"

Download ruff 0.13.1