astral-sh/ruff (ruff)
### [`v0.5.5`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#055)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.4...0.5.5)
##### Preview features
- \[`fastapi`] Implement `fastapi-redundant-response-model` (`FAST001`) and `fastapi-non-annotated-dependency`(`FAST002`) ([#11579](https://togithub.com/astral-sh/ruff/pull/11579))
- \[`pydoclint`] Implement `docstring-missing-exception` (`DOC501`) and `docstring-extraneous-exception` (`DOC502`) ([#11471](https://togithub.com/astral-sh/ruff/pull/11471))
##### Rule changes
- \[`numpy`] Fix NumPy 2.0 rule for `np.alltrue` and `np.sometrue` ([#12473](https://togithub.com/astral-sh/ruff/pull/12473))
- \[`numpy`] Ignore `NPY201` inside `except` blocks for compatibility with older numpy versions ([#12490](https://togithub.com/astral-sh/ruff/pull/12490))
- \[`pep8-naming`] Avoid applying `ignore-names` to `self` and `cls` function names (`N804`, `N805`) ([#12497](https://togithub.com/astral-sh/ruff/pull/12497))
##### Formatter
- Fix incorrect placement of leading function comment with type params ([#12447](https://togithub.com/astral-sh/ruff/pull/12447))
##### Server
- Do not bail code action resolution when a quick fix is requested ([#12462](https://togithub.com/astral-sh/ruff/pull/12462))
##### Bug fixes
- Fix `Ord` implementation of `cmp_fix` ([#12471](https://togithub.com/astral-sh/ruff/pull/12471))
- Raise syntax error for unparenthesized generator expression in multi-argument call ([#12445](https://togithub.com/astral-sh/ruff/pull/12445))
- \[`pydoclint`] Fix panic in `DOC501` reported in [#12428](https://togithub.com/astral-sh/ruff/pull/12428) ([#12435](https://togithub.com/astral-sh/ruff/pull/12435))
- \[`flake8-bugbear`] Allow singleton tuples with starred expressions in `B013` ([#12484](https://togithub.com/astral-sh/ruff/pull/12484))
##### Documentation
- Add Eglot setup guide for Emacs editor ([#12426](https://togithub.com/astral-sh/ruff/pull/12426))
- Add note about the breaking change in `nvim-lspconfig` ([#12507](https://togithub.com/astral-sh/ruff/pull/12507))
- Add note to include notebook files for native server ([#12449](https://togithub.com/astral-sh/ruff/pull/12449))
- Add setup docs for Zed editor ([#12501](https://togithub.com/astral-sh/ruff/pull/12501))
### [`v0.5.4`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#054)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.3...0.5.4)
##### Rule changes
- \[`ruff`] Rename `RUF007` to `zip-instead-of-pairwise` ([#12399](https://togithub.com/astral-sh/ruff/pull/12399))
##### Bug fixes
- \[`flake8-builtins`] Avoid shadowing diagnostics for `@override` methods ([#12415](https://togithub.com/astral-sh/ruff/pull/12415))
- \[`flake8-comprehensions`] Insert parentheses for multi-argument generators ([#12422](https://togithub.com/astral-sh/ruff/pull/12422))
- \[`pydocstyle`] Handle escaped docstrings within docstring (`D301`) ([#12192](https://togithub.com/astral-sh/ruff/pull/12192))
##### Documentation
- Fix GitHub link to Neovim setup ([#12410](https://togithub.com/astral-sh/ruff/pull/12410))
- Fix `output-format` default in settings reference ([#12409](https://togithub.com/astral-sh/ruff/pull/12409))
### [`v0.5.3`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#053)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.2...0.5.3)
**Ruff 0.5.3 marks the stable release of the Ruff language server and introduces revamped
[documentation](https://docs.astral.sh/ruff/editors), including [setup guides for your editor of
choice](https://docs.astral.sh/ruff/editors/setup) and [the language server
itself](https://docs.astral.sh/ruff/editors/settings)**.
##### Preview features
- Formatter: Insert empty line between suite and alternative branch after function/class definition ([#12294](https://togithub.com/astral-sh/ruff/pull/12294))
- \[`pyupgrade`] Implement `unnecessary-default-type-args` (`UP043`) ([#12371](https://togithub.com/astral-sh/ruff/pull/12371))
##### Rule changes
- \[`flake8-bugbear`] Detect enumerate iterations in `loop-iterator-mutation` (`B909`) ([#12366](https://togithub.com/astral-sh/ruff/pull/12366))
- \[`flake8-bugbear`] Remove `discard`, `remove`, and `pop` allowance for `loop-iterator-mutation` (`B909`) ([#12365](https://togithub.com/astral-sh/ruff/pull/12365))
- \[`pylint`] Allow `repeated-equality-comparison` for mixed operations (`PLR1714`) ([#12369](https://togithub.com/astral-sh/ruff/pull/12369))
- \[`pylint`] Ignore `self` and `cls` when counting arguments (`PLR0913`) ([#12367](https://togithub.com/astral-sh/ruff/pull/12367))
- \[`pylint`] Use UTF-8 as default encoding in `unspecified-encoding` fix (`PLW1514`) ([#12370](https://togithub.com/astral-sh/ruff/pull/12370))
##### Server
- Build settings index in parallel for the native server ([#12299](https://togithub.com/astral-sh/ruff/pull/12299))
- Use fallback settings when indexing the project ([#12362](https://togithub.com/astral-sh/ruff/pull/12362))
- Consider `--preview` flag for `server` subcommand for the linter and formatter ([#12208](https://togithub.com/astral-sh/ruff/pull/12208))
##### Bug fixes
- \[`flake8-comprehensions`] Allow additional arguments for `sum` and `max` comprehensions (`C419`) ([#12364](https://togithub.com/astral-sh/ruff/pull/12364))
- \[`pylint`] Avoid dropping extra boolean operations in `repeated-equality-comparison` (`PLR1714`) ([#12368](https://togithub.com/astral-sh/ruff/pull/12368))
- \[`pylint`] Consider expression before statement when determining binding kind (`PLR1704`) ([#12346](https://togithub.com/astral-sh/ruff/pull/12346))
##### Documentation
- Add docs for Ruff language server ([#12344](https://togithub.com/astral-sh/ruff/pull/12344))
- Migrate to standalone docs repo ([#12341](https://togithub.com/astral-sh/ruff/pull/12341))
- Update versioning policy for editor integration ([#12375](https://togithub.com/astral-sh/ruff/pull/12375))
##### Other changes
- Publish Wasm API to npm ([#12317](https://togithub.com/astral-sh/ruff/pull/12317))
### [`v0.5.2`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#052)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.1...0.5.2)
##### Preview features
- Use `space` separator before parenthesized expressions in comprehensions with leading comments ([#12282](https://togithub.com/astral-sh/ruff/pull/12282))
- \[`flake8-async`] Update `ASYNC100` to include `anyio` and `asyncio` ([#12221](https://togithub.com/astral-sh/ruff/pull/12221))
- \[`flake8-async`] Update `ASYNC109` to include `anyio` and `asyncio` ([#12236](https://togithub.com/astral-sh/ruff/pull/12236))
- \[`flake8-async`] Update `ASYNC110` to include `anyio` and `asyncio` ([#12261](https://togithub.com/astral-sh/ruff/pull/12261))
- \[`flake8-async`] Update `ASYNC115` to include `anyio` and `asyncio` ([#12262](https://togithub.com/astral-sh/ruff/pull/12262))
- \[`flake8-async`] Update `ASYNC116` to include `anyio` and `asyncio` ([#12266](https://togithub.com/astral-sh/ruff/pull/12266))
##### Rule changes
- \[`flake8-return`] Exempt properties from explicit return rule (`RET501`) ([#12243](https://togithub.com/astral-sh/ruff/pull/12243))
- \[`numpy`] Add `np.NAN`-to-`np.nan` diagnostic ([#12292](https://togithub.com/astral-sh/ruff/pull/12292))
- \[`refurb`] Make `list-reverse-copy` an unsafe fix ([#12303](https://togithub.com/astral-sh/ruff/pull/12303))
##### Server
- Consider `include` and `extend-include` settings in native server ([#12252](https://togithub.com/astral-sh/ruff/pull/12252))
- Include nested configurations in settings reloading ([#12253](https://togithub.com/astral-sh/ruff/pull/12253))
##### CLI
- Omit code frames for fixes with empty ranges ([#12304](https://togithub.com/astral-sh/ruff/pull/12304))
- Warn about formatter incompatibility for `D203` ([#12238](https://togithub.com/astral-sh/ruff/pull/12238))
##### Bug fixes
- Make cache-write failures non-fatal on Windows ([#12302](https://togithub.com/astral-sh/ruff/pull/12302))
- Treat `not` operations as boolean tests ([#12301](https://togithub.com/astral-sh/ruff/pull/12301))
- \[`flake8-bandit`] Avoid `S310` violations for HTTP-safe f-strings ([#12305](https://togithub.com/astral-sh/ruff/pull/12305))
- \[`flake8-bandit`] Support explicit string concatenations in S310 HTTP detection ([#12315](https://togithub.com/astral-sh/ruff/pull/12315))
- \[`flake8-bandit`] fix S113 false positive for httpx without `timeout` argument ([#12213](https://togithub.com/astral-sh/ruff/pull/12213))
- \[`pycodestyle`] Remove "non-obvious" allowance for E721 ([#12300](https://togithub.com/astral-sh/ruff/pull/12300))
- \[`pyflakes`] Consider `with` blocks as single-item branches for redefinition analysis ([#12311](https://togithub.com/astral-sh/ruff/pull/12311))
- \[`refurb`] Restrict forwarding for `newline` argument in `open()` calls to Python versions >= 3.10 ([#12244](https://togithub.com/astral-sh/ruff/pull/12244))
##### Documentation
- Update help and documentation to reflect `--output-format full` default ([#12248](https://togithub.com/astral-sh/ruff/pull/12248))
##### Performance
- Use more threads when discovering Python files ([#12258](https://togithub.com/astral-sh/ruff/pull/12258))
### [`v0.5.1`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#051)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.0...0.5.1)
##### Preview features
- \[`flake8-bugbear`] Implement mutable-contextvar-default (B039) ([#12113](https://togithub.com/astral-sh/ruff/pull/12113))
- \[`pycodestyle`] Whitespace after decorator (`E204`) ([#12140](https://togithub.com/astral-sh/ruff/pull/12140))
- \[`pytest`] Reverse `PT001` and `PT0023` defaults ([#12106](https://togithub.com/astral-sh/ruff/pull/12106))
##### Rule changes
- Enable token-based rules on source with syntax errors ([#11950](https://togithub.com/astral-sh/ruff/pull/11950))
- \[`flake8-bandit`] Detect `httpx` for `S113` ([#12174](https://togithub.com/astral-sh/ruff/pull/12174))
- \[`numpy`] Update `NPY201` to include exception deprecations ([#12065](https://togithub.com/astral-sh/ruff/pull/12065))
- \[`pylint`] Generate autofix for `duplicate-bases` (`PLE0241`) ([#12105](https://togithub.com/astral-sh/ruff/pull/12105))
##### Server
- Avoid syntax error notification for source code actions ([#12148](https://togithub.com/astral-sh/ruff/pull/12148))
- Consider the content of the new cells during notebook sync ([#12203](https://togithub.com/astral-sh/ruff/pull/12203))
- Fix replacement edit range computation ([#12171](https://togithub.com/astral-sh/ruff/pull/12171))
##### Bug fixes
- Disable auto-fix when source has syntax errors ([#12134](https://togithub.com/astral-sh/ruff/pull/12134))
- Fix cache key collisions for paths with separators ([#12159](https://togithub.com/astral-sh/ruff/pull/12159))
- Make `requires-python` inference robust to `==` ([#12091](https://togithub.com/astral-sh/ruff/pull/12091))
- Use char-wise width instead of `str`-width ([#12135](https://togithub.com/astral-sh/ruff/pull/12135))
- \[`pycodestyle`] Avoid `E275` if keyword followed by comma ([#12136](https://togithub.com/astral-sh/ruff/pull/12136))
- \[`pycodestyle`] Avoid `E275` if keyword is followed by a semicolon ([#12095](https://togithub.com/astral-sh/ruff/pull/12095))
- \[`pylint`] Skip [dummy variables](https://docs.astral.sh/ruff/settings/#lint_dummy-variable-rgx) for `PLR1704` ([#12190](https://togithub.com/astral-sh/ruff/pull/12190))
##### Performance
- Remove allocation in `parse_identifier` ([#12103](https://togithub.com/astral-sh/ruff/pull/12103))
- Use `CompactString` for `Identifier` AST node ([#12101](https://togithub.com/astral-sh/ruff/pull/12101))
### [`v0.5.0`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#050)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.10...0.5.0)
Check out the [blog post](https://astral.sh/blog/ruff-v0.5.0) for a migration guide and overview of the changes!
##### Breaking changes
See also, the "Remapped rules" section which may result in disabled rules.
- Follow the XDG specification to discover user-level configurations on macOS (same as on other Unix platforms)
- Selecting `ALL` now excludes deprecated rules
- The released archives now include an extra level of nesting, which can be removed with `--strip-components=1` when untarring.
- The release artifact's file name no longer includes the version tag. This enables users to install via `/latest` URLs on GitHub.
##### Deprecations
The following rules are now deprecated:
- [`syntax-error`](https://docs.astral.sh/ruff/rules/syntax-error/) (`E999`): Syntax errors are now always shown
##### Remapped rules
The following rules have been remapped to new rule codes:
- [`blocking-http-call-in-async-function`](https://docs.astral.sh/ruff/rules/blocking-http-call-in-async-function/): `ASYNC100` to `ASYNC210`
- [`open-sleep-or-subprocess-in-async-function`](https://docs.astral.sh/ruff/rules/open-sleep-or-subprocess-in-async-function/): `ASYNC101` split into `ASYNC220`, `ASYNC221`, `ASYNC230`, and `ASYNC251`
- [`blocking-os-call-in-async-function`](https://docs.astral.sh/ruff/rules/blocking-os-call-in-async-function/): `ASYNC102` has been merged into `ASYNC220` and `ASYNC221`
- [`trio-timeout-without-await`](https://docs.astral.sh/ruff/rules/trio-timeout-without-await/): `TRIO100` to `ASYNC100`
- [`trio-sync-call`](https://docs.astral.sh/ruff/rules/trio-sync-call/): `TRIO105` to `ASYNC105`
- [`trio-async-function-with-timeout`](https://docs.astral.sh/ruff/rules/trio-async-function-with-timeout/): `TRIO109` to `ASYNC109`
- [`trio-unneeded-sleep`](https://docs.astral.sh/ruff/rules/trio-unneeded-sleep/): `TRIO110` to `ASYNC110`
- [`trio-zero-sleep-call`](https://docs.astral.sh/ruff/rules/trio-zero-sleep-call/): `TRIO115` to `ASYNC115`
- [`repeated-isinstance-calls`](https://docs.astral.sh/ruff/rules/repeated-isinstance-calls/): `PLR1701` to `SIM101`
##### Stabilization
The following rules have been stabilized and are no longer in preview:
- [`mutable-fromkeys-value`](https://docs.astral.sh/ruff/rules/mutable-fromkeys-value/) (`RUF024`)
- [`default-factory-kwarg`](https://docs.astral.sh/ruff/rules/default-factory-kwarg/) (`RUF026`)
- [`django-extra`](https://docs.astral.sh/ruff/rules/django-extra/) (`S610`)
- [`manual-dict-comprehension`](https://docs.astral.sh/ruff/rules/manual-dict-comprehension/) (`PERF403`)
- [`print-empty-string`](https://docs.astral.sh/ruff/rules/print-empty-string/) (`FURB105`)
- [`readlines-in-for`](https://docs.astral.sh/ruff/rules/readlines-in-for/) (`FURB129`)
- [`if-expr-min-max`](https://docs.astral.sh/ruff/rules/if-expr-min-max/) (`FURB136`)
- [`bit-count`](https://docs.astral.sh/ruff/rules/bit-count/) (`FURB161`)
- [`redundant-log-base`](https://docs.astral.sh/ruff/rules/redundant-log-base/) (`FURB163`)
- [`regex-flag-alias`](https://docs.astral.sh/ruff/rules/regex-flag-alias/) (`FURB167`)
- [`isinstance-type-none`](https://docs.astral.sh/ruff/rules/isinstance-type-none/) (`FURB168`)
- [`type-none-comparison`](https://docs.astral.sh/ruff/rules/type-none-comparison/) (`FURB169`)
- [`implicit-cwd`](https://docs.astral.sh/ruff/rules/implicit-cwd/) (`FURB177`)
- [`hashlib-digest-hex`](https://docs.astral.sh/ruff/rules/hashlib-digest-hex/) (`FURB181`)
- [`list-reverse-copy`](https://docs.astral.sh/ruff/rules/list-reverse-copy/) (`FURB187`)
- [`bad-open-mode`](https://docs.astral.sh/ruff/rules/bad-open-mode/) (`PLW1501`)
- [`empty-comment`](https://docs.astral.sh/ruff/rules/empty-comment/) (`PLR2044`)
- [`global-at-module-level`](https://docs.astral.sh/ruff/rules/global-at-module-level/) (`PLW0604`)
- [`misplaced-bare-raise`](https://docs.astral.sh/ruff/rules/misplaced-bare-raise%60/) (`PLE0744`)
- [`non-ascii-import-name`](https://docs.astral.sh/ruff/rules/non-ascii-import-name/) (`PLC2403`)
- [`non-ascii-name`](https://docs.astral.sh/ruff/rules/non-ascii-name/) (`PLC2401`)
- [`nonlocal-and-global`](https://docs.astral.sh/ruff/rules/nonlocal-and-global/) (`PLE0115`)
- [`potential-index-error`](https://docs.astral.sh/ruff/rules/potential-index-error/) (`PLE0643`)
- [`redeclared-assigned-name`](https://docs.astral.sh/ruff/rules/redeclared-assigned-name/) (`PLW0128`)
- [`redefined-argument-from-local`](https://docs.astral.sh/ruff/rules/redefined-argument-from-local/) (`PLR1704`)
- [`repeated-keyword-argument`](https://docs.astral.sh/ruff/rules/repeated-keyword-argument/) (`PLE1132`)
- [`super-without-brackets`](https://docs.astral.sh/ruff/rules/super-without-brackets/) (`PLW0245`)
- [`unnecessary-list-index-lookup`](https://docs.astral.sh/ruff/rules/unnecessary-list-index-lookup/) (`PLR1736`)
- [`useless-exception-statement`](https://docs.astral.sh/ruff/rules/useless-exception-statement/) (`PLW0133`)
- [`useless-with-lock`](https://docs.astral.sh/ruff/rules/useless-with-lock/) (`PLW2101`)
The following behaviors have been stabilized:
- [`is-literal`](https://docs.astral.sh/ruff/rules/is-literal/) (`F632`) now warns for identity checks against list, set or dictionary literals
- [`needless-bool`](https://docs.astral.sh/ruff/rules/needless-bool/) (`SIM103`) now detects `if` expressions with implicit `else` branches
- [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`) now allows `os.environ` modifications between import statements
- [`type-comparison`](https://docs.astral.sh/ruff/rules/type-comparison/) (`E721`) now allows idioms such as `type(x) is int`
- [`yoda-condition`](https://docs.astral.sh/ruff/rules/yoda-conditions/) (`SIM300`) now flags a wider range of expressions
##### Removals
The following deprecated settings have been removed:
- `output-format=text`; use `output-format=concise` or `output-format=full`
- `tab-size`; use `indent-width`
The following deprecated CLI options have been removed:
- `--show-source`; use `--output-format=full`
- `--no-show-source`; use `--output-format=concise`
The following deprecated CLI commands have been removed:
- `ruff `; use `ruff check `
- `ruff --clean`; use `ruff clean`
- `ruff --generate-shell-completion`; use `ruff generate-shell-completion`
##### Preview features
- \[`ruff`] Add `assert-with-print-message` rule ([#11981](https://togithub.com/astral-sh/ruff/pull/11981))
##### CLI
- Use rule name rather than message in `--statistics` ([#11697](https://togithub.com/astral-sh/ruff/pull/11697))
- Use the output format `full` by default ([#12010](https://togithub.com/astral-sh/ruff/pull/12010))
- Don't log syntax errors to the console ([#11902](https://togithub.com/astral-sh/ruff/pull/11902))
##### Rule changes
- \[`ruff`] Fix false positives if `gettext` is imported using an alias (`RUF027`) ([#12025](https://togithub.com/astral-sh/ruff/pull/12025))
- \[`npy`] Update `trapz` and `in1d` deprecation (`NPY201`) ([#11948](https://togithub.com/astral-sh/ruff/pull/11948))
- \[`flake8-bandit`] Modify diagnostic ranges for shell-related rules ([#10667](https://togithub.com/astral-sh/ruff/pull/10667))
##### Server
- Closing an untitled, unsaved notebook document no longer throws an error ([#11942](https://togithub.com/astral-sh/ruff/pull/11942))
- Support the usage of tildes and environment variables in `logFile` ([#11945](https://togithub.com/astral-sh/ruff/pull/11945))
- Add option to configure whether to show syntax errors ([#12059](https://togithub.com/astral-sh/ruff/pull/12059))
##### Bug fixes
- \[`pycodestyle`] Avoid `E203` for f-string debug expression ([#12024](https://togithub.com/astral-sh/ruff/pull/12024))
- \[`pep8-naming`] Match import-name ignores against both name and alias (`N812`, `N817`) ([#12033](https://togithub.com/astral-sh/ruff/pull/12033))
- \[`pyflakes`] Detect assignments that shadow definitions (`F811`) ([#11961](https://togithub.com/astral-sh/ruff/pull/11961))
##### Parser
- Emit a syntax error for an empty type parameter list ([#12030](https://togithub.com/astral-sh/ruff/pull/12030))
- Avoid consuming the newline for unterminated strings ([#12067](https://togithub.com/astral-sh/ruff/pull/12067))
- Do not include the newline in the unterminated string range ([#12017](https://togithub.com/astral-sh/ruff/pull/12017))
- Use the correct range to highlight line continuation errors ([#12016](https://togithub.com/astral-sh/ruff/pull/12016))
- Consider 2-character EOL before line continuations ([#12035](https://togithub.com/astral-sh/ruff/pull/12035))
- Consider line continuation character for re-lexing ([#12008](https://togithub.com/astral-sh/ruff/pull/12008))
##### Other changes
- Upgrade the Unicode table used for measuring the line-length ([#11194](https://togithub.com/astral-sh/ruff/pull/11194))
- Remove the deprecation error message for the nursery selector ([#10172](https://togithub.com/astral-sh/ruff/pull/10172))
### [`v0.4.10`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#0410)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.9...v0.4.10)
##### Parser
- Implement re-lexing logic for better error recovery ([#11845](https://togithub.com/astral-sh/ruff/pull/11845))
##### Rule changes
- \[`flake8-copyright`] Update `CPY001` to check the first 4096 bytes instead of 1024 ([#11927](https://togithub.com/astral-sh/ruff/pull/11927))
- \[`pycodestyle`] Update `E999` to show all syntax errors instead of just the first one ([#11900](https://togithub.com/astral-sh/ruff/pull/11900))
##### Server
- Add tracing setup guide to Helix documentation ([#11883](https://togithub.com/astral-sh/ruff/pull/11883))
- Add tracing setup guide to Neovim documentation ([#11884](https://togithub.com/astral-sh/ruff/pull/11884))
- Defer notebook cell deletion to avoid an error message ([#11864](https://togithub.com/astral-sh/ruff/pull/11864))
##### Security
- Guard against malicious ecosystem comment artifacts ([#11879](https://togithub.com/astral-sh/ruff/pull/11879))
### [`v0.4.9`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#049)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.8...v0.4.9)
##### Preview features
- \[`pylint`] Implement `consider-dict-items` (`C0206`) ([#11688](https://togithub.com/astral-sh/ruff/pull/11688))
- \[`refurb`] Implement `repeated-global` (`FURB154`) ([#11187](https://togithub.com/astral-sh/ruff/pull/11187))
##### Rule changes
- \[`pycodestyle`] Adapt fix for `E203` to work identical to `ruff format` ([#10999](https://togithub.com/astral-sh/ruff/pull/10999))
##### Formatter
- Fix formatter instability for lines only consisting of zero-width characters ([#11748](https://togithub.com/astral-sh/ruff/pull/11748))
##### Server
- Add supported commands in server capabilities ([#11850](https://togithub.com/astral-sh/ruff/pull/11850))
- Use real file path when available in `ruff server` ([#11800](https://togithub.com/astral-sh/ruff/pull/11800))
- Improve error message when a command is run on an unavailable document ([#11823](https://togithub.com/astral-sh/ruff/pull/11823))
- Introduce the `ruff.printDebugInformation` command ([#11831](https://togithub.com/astral-sh/ruff/pull/11831))
- Tracing system now respects log level and trace level, with options to log to a file ([#11747](https://togithub.com/astral-sh/ruff/pull/11747))
##### CLI
- Handle non-printable characters in diff view ([#11687](https://togithub.com/astral-sh/ruff/pull/11687))
##### Bug fixes
- \[`refurb`] Avoid suggesting starmap when arguments are used outside call (`FURB140`) ([#11830](https://togithub.com/astral-sh/ruff/pull/11830))
- \[`flake8-bugbear`] Avoid panic in `B909` when checking large loop blocks ([#11772](https://togithub.com/astral-sh/ruff/pull/11772))
- \[`refurb`] Fix misbehavior of `operator.itemgetter` when getter param is a tuple (`FURB118`) ([#11774](https://togithub.com/astral-sh/ruff/pull/11774))
### [`v0.4.8`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#048)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.7...v0.4.8)
##### Performance
- Linter performance has been improved by around 10% on some microbenchmarks by refactoring the lexer and parser to maintain synchronicity between them ([#11457](https://togithub.com/astral-sh/ruff/pull/11457))
##### Preview features
- \[`flake8-bugbear`] Implement `return-in-generator` (`B901`) ([#11644](https://togithub.com/astral-sh/ruff/pull/11644))
- \[`flake8-pyi`] Implement `PYI063` ([#11699](https://togithub.com/astral-sh/ruff/pull/11699))
- \[`pygrep_hooks`] Check blanket ignores via file-level pragmas (`PGH004`) ([#11540](https://togithub.com/astral-sh/ruff/pull/11540))
##### Rule changes
- \[`pyupgrade`] Update `UP035` for Python 3.13 and the latest version of `typing_extensions` ([#11693](https://togithub.com/astral-sh/ruff/pull/11693))
- \[`numpy`] Update `NPY001` rule for NumPy 2.0 ([#11735](https://togithub.com/astral-sh/ruff/pull/11735))
##### Server
- Formatting a document with syntax problems no longer spams a visible error popup ([#11745](https://togithub.com/astral-sh/ruff/pull/11745))
##### CLI
- Add RDJson support for `--output-format` flag ([#11682](https://togithub.com/astral-sh/ruff/pull/11682))
##### Bug fixes
- \[`pyupgrade`] Write empty string in lieu of panic when fixing `UP032` ([#11696](https://togithub.com/astral-sh/ruff/pull/11696))
- \[`flake8-simplify`] Simplify double negatives in `SIM103` ([#11684](https://togithub.com/astral-sh/ruff/pull/11684))
- Ensure the expression generator adds a newline before `type` statements ([#11720](https://togithub.com/astral-sh/ruff/pull/11720))
- Respect per-file ignores for blanket and redirected noqa rules ([#11728](https://togithub.com/astral-sh/ruff/pull/11728))
### [`v0.4.7`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#047)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.6...v0.4.7)
##### Preview features
- \[`flake8-pyi`] Implement `PYI064` ([#11325](https://togithub.com/astral-sh/ruff/pull/11325))
- \[`flake8-pyi`] Implement `PYI066` ([#11541](https://togithub.com/astral-sh/ruff/pull/11541))
- \[`flake8-pyi`] Implement `PYI057` ([#11486](https://togithub.com/astral-sh/ruff/pull/11486))
- \[`pyflakes`] Enable `F822` in `__init__.py` files by default ([#11370](https://togithub.com/astral-sh/ruff/pull/11370))
##### Formatter
- Fix incorrect placement of trailing stub function comments ([#11632](https://togithub.com/astral-sh/ruff/pull/11632))
##### Server
- Respect file exclusions in `ruff server` ([#11590](https://togithub.com/astral-sh/ruff/pull/11590))
- Add support for documents not exist on disk ([#11588](https://togithub.com/astral-sh/ruff/pull/11588))
- Add Vim and Kate setup guide for `ruff server` ([#11615](https://togithub.com/astral-sh/ruff/pull/11615))
##### Bug fixes
- Avoid removing newlines between docstring headers and rST blocks ([#11609](https://togithub.com/astral-sh/ruff/pull/11609))
- Infer indentation with imports when logical indent is absent ([#11608](https://togithub.com/astral-sh/ruff/pull/11608))
- Use char index rather than position for indent slice ([#11645](https://togithub.com/astral-sh/ruff/pull/11645))
- \[`flake8-comprehension`] Strip parentheses around generators in `C400` ([#11607](https://togithub.com/astral-sh/ruff/pull/11607))
- Mark `repeated-isinstance-calls` as unsafe on Python 3.10 and later ([#11622](https://togithub.com/astral-sh/ruff/pull/11622))
### [`v0.4.6`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#046)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.5...v0.4.6)
##### Breaking changes
- Use project-relative paths when calculating GitLab fingerprints ([#11532](https://togithub.com/astral-sh/ruff/pull/11532))
##### Preview features
- \[`flake8-async`] Sleep with >24 hour interval should usually sleep forever (`ASYNC116`) ([#11498](https://togithub.com/astral-sh/ruff/pull/11498))
##### Rule changes
- \[`numpy`] Add missing functions to NumPy 2.0 migration rule ([#11528](https://togithub.com/astral-sh/ruff/pull/11528))
- \[`mccabe`] Consider irrefutable pattern similar to `if .. else` for `C901` ([#11565](https://togithub.com/astral-sh/ruff/pull/11565))
- Consider `match`-`case` statements for `C901`, `PLR0912`, and `PLR0915` ([#11521](https://togithub.com/astral-sh/ruff/pull/11521))
- Remove empty strings when converting to f-string (`UP032`) ([#11524](https://togithub.com/astral-sh/ruff/pull/11524))
- \[`flake8-bandit`] `request-without-timeout` should warn for `requests.request` ([#11548](https://togithub.com/astral-sh/ruff/pull/11548))
- \[`flake8-self`] Ignore sunder accesses in `flake8-self` rules ([#11546](https://togithub.com/astral-sh/ruff/pull/11546))
- \[`pyupgrade`] Lint for `TypeAliasType` usages (`UP040`) ([#11530](https://togithub.com/astral-sh/ruff/pull/11530))
##### Server
- Respect excludes in `ruff server` configuration discovery ([#11551](https://togithub.com/astral-sh/ruff/pull/11551))
- Use default settings if initialization options is empty or not provided ([#11566](https://togithub.com/astral-sh/ruff/pull/11566))
- `ruff server` correctly treats `.pyi` files as stub files ([#11535](https://togithub.com/astral-sh/ruff/pull/11535))
- `ruff server` searches for configuration in parent directories ([#11537](https://togithub.com/astral-sh/ruff/pull/11537))
- `ruff server`: An empty code action filter no longer returns notebook source actions ([#11526](https://togithub.com/astral-sh/ruff/pull/11526))
##### Bug fixes
- \[`flake8-logging-format`] Fix autofix title in `logging-warn` (`G010`) ([#11514](https://togithub.com/astral-sh/ruff/pull/11514))
- \[`refurb`] Avoid recommending `operator.itemgetter` with dependence on lambda arguments ([#11574](https://togithub.com/astral-sh/ruff/pull/11574))
- \[`flake8-simplify`] Avoid recommending context manager in `__enter__` implementations ([#11575](https://togithub.com/astral-sh/ruff/pull/11575))
- Create intermediary directories for `--output-file` ([#11550](https://togithub.com/astral-sh/ruff/pull/11550))
- Propagate reads on global variables ([#11584](https://togithub.com/astral-sh/ruff/pull/11584))
- Treat all `singledispatch` arguments as runtime-required ([#11523](https://togithub.com/astral-sh/ruff/pull/11523))
### [`v0.4.5`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#045)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.4...v0.4.5)
##### Ruff's language server is now in Beta
`v0.4.5` marks the official Beta release of `ruff server`, an integrated language server built into Ruff.
`ruff server` supports the same feature set as `ruff-lsp`, powering linting, formatting, and
code fixes in Ruff's editor integrations -- but with superior performance and
no installation required. We'd love your feedback!
You can enable `ruff server` in the [VS Code extension](https://togithub.com/astral-sh/ruff-vscode?tab=readme-ov-file#enabling-the-rust-based-language-server) today.
To read more about this exciting milestone, check out our [blog post](https://astral.sh/blog/ruff-v0.4.5)!
##### Rule changes
- \[`flake8-future-annotations`] Reword `future-rewritable-type-annotation` (`FA100`) message ([#11381](https://togithub.com/astral-sh/ruff/pull/11381))
- \[`pycodestyle`] Consider soft keywords for `E27` rules ([#11446](https://togithub.com/astral-sh/ruff/pull/11446))
- \[`pyflakes`] Recommend adding unused import bindings to `__all__` ([#11314](https://togithub.com/astral-sh/ruff/pull/11314))
- \[`pyflakes`] Update documentation and deprecate `ignore_init_module_imports` ([#11436](https://togithub.com/astral-sh/ruff/pull/11436))
- \[`pyupgrade`] Mark quotes as unnecessary for non-evaluated annotations ([#11485](https://togithub.com/astral-sh/ruff/pull/11485))
##### Formatter
- Avoid multiline quotes warning with `quote-style = preserve` ([#11490](https://togithub.com/astral-sh/ruff/pull/11490))
##### Server
- Support Jupyter Notebook files ([#11206](https://togithub.com/astral-sh/ruff/pull/11206))
- Support `noqa` comment code actions ([#11276](https://togithub.com/astral-sh/ruff/pull/11276))
- Fix automatic configuration reloading ([#11492](https://togithub.com/astral-sh/ruff/pull/11492))
- Fix several issues with configuration in Neovim and Helix ([#11497](https://togithub.com/astral-sh/ruff/pull/11497))
##### CLI
- Add `--output-format` as a CLI option for `ruff config` ([#11438](https://togithub.com/astral-sh/ruff/pull/11438))
##### Bug fixes
- Avoid `PLE0237` for property with setter ([#11377](https://togithub.com/astral-sh/ruff/pull/11377))
- Avoid `TCH005` for `if` stmt with `elif`/`else` block ([#11376](https://togithub.com/astral-sh/ruff/pull/11376))
- Avoid flagging `__future__` annotations as required for non-evaluated type annotations ([#11414](https://togithub.com/astral-sh/ruff/pull/11414))
- Check for ruff executable in 'bin' directory as installed by 'pip install --target'. ([#11450](https://togithub.com/astral-sh/ruff/pull/11450))
- Sort edits prior to deduplicating in quotation fix ([#11452](https://togithub.com/astral-sh/ruff/pull/11452))
- Treat escaped newline as valid sequence ([#11465](https://togithub.com/astral-sh/ruff/pull/11465))
- \[`flake8-pie`] Preserve parentheses in `unnecessary-dict-kwargs` ([#11372](https://togithub.com/astral-sh/ruff/pull/11372))
- \[`pylint`] Ignore `__slots__` with dynamic values ([#11488](https://togithub.com/astral-sh/ruff/pull/11488))
- \[`pylint`] Remove `try` body from branch counting ([#11487](https://togithub.com/astral-sh/ruff/pull/11487))
- \[`refurb`] Respect operator precedence in `FURB110` ([#11464](https://togithub.com/astral-sh/ruff/pull/11464))
##### Documentation
- Add `--preview` to the README ([#11395](https://togithub.com/astral-sh/ruff/pull/11395))
- Add Python 3.13 to list of allowed Python versions ([#11411](https://togithub.com/astral-sh/ruff/pull/11411))
- Simplify Neovim setup documentation ([#11489](https://togithub.com/astral-sh/ruff/pull/11489))
- Update CONTRIBUTING.md to reflect the new parser ([#11434](https://togithub.com/astral-sh/ruff/pull/11434))
- Update server documentation with new migration guide ([#11499](https://togithub.com/astral-sh/ruff/pull/11499))
- \[`pycodestyle`] Clarify motivation for `E713` and `E714` ([#11483](https://togithub.com/astral-sh/ruff/pull/11483))
- \[`pyflakes`] Update docs to describe WAI behavior (F541) ([#11362](https://togithub.com/astral-sh/ruff/pull/11362))
- \[`pylint`] Clearly indicate what is counted as a branch ([#11423](https://togithub.com/astral-sh/ruff/pull/11423))
### [`v0.4.4`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#044)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.3...v0.4.4)
##### Preview features
- \[`pycodestyle`] Ignore end-of-line comments when determining blank line rules ([#11342](https://togithub.com/astral-sh/ruff/pull/11342))
- \[`pylint`] Detect `pathlib.Path.open` calls in `unspecified-encoding` (`PLW1514`) ([#11288](https://togithub.com/astral-sh/ruff/pull/11288))
- \[`flake8-pyi`] Implement `PYI059` (`generic-not-last-base-class`) ([#11233](https://togithub.com/astral-sh/ruff/pull/11233))
- \[`flake8-pyi`] Implement `PYI062` (`duplicate-literal-member`) ([#11269](https://togithub.com/astral-sh/ruff/pull/11269))
##### Rule changes
- \[`flake8-boolean-trap`] Allow passing booleans as positional-only arguments in code such as `set(True)` ([#11287](https://togithub.com/astral-sh/ruff/pull/11287))
- \[`flake8-bugbear`] Ignore enum classes in `cached-instance-method` (`B019`) ([#11312](https://togithub.com/astral-sh/ruff/pull/11312))
##### Server
- Expand tildes when resolving Ruff server configuration file ([#11283](https://togithub.com/astral-sh/ruff/pull/11283))
- Fix `ruff server` hanging after Neovim closes ([#11291](https://togithub.com/astral-sh/ruff/pull/11291))
- Editor settings are used by default if no file-based configuration exists ([#11266](https://togithub.com/astral-sh/ruff/pull/11266))
##### Bug fixes
- \[`pylint`] Consider `with` statements for `too-many-branches` (`PLR0912`) ([#11321](https://togithub.com/astral-sh/ruff/pull/11321))
- \[`flake8-blind-except`, `tryceratops`] Respect logged and re-raised expressions in nested statements (`BLE001`, `TRY201`) ([#11301](https://togithub.com/astral-sh/ruff/pull/11301))
- Recognise assignments such as `__all__ = builtins.list(["foo", "bar"])` as valid `__all__` definitions ([#11335](https://togithub.com/astral-sh/ruff/pull/11335))
### [`v0.4.3`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#043)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.2...v0.4.3)
##### Enhancements
- Add support for PEP 696 syntax ([#11120](https://togithub.com/astral-sh/ruff/pull/11120))
##### Preview features
- \[`refurb`] Use function range for `reimplemented-operator` diagnostics ([#11271](https://togithub.com/astral-sh/ruff/pull/11271))
- \[`refurb`] Ignore methods in `reimplemented-operator` (`FURB118`) ([#11270](https://togithub.com/astral-sh/ruff/pull/11270))
- \[`refurb`] Implement `fstring-number-format` (`FURB116`) ([#10921](https://togithub.com/astral-sh/ruff/pull/10921))
- \[`ruff`] Implement `redirected-noqa` (`RUF101`) ([#11052](https://togithub.com/astral-sh/ruff/pull/11052))
- \[`pyflakes`] Distinguish between first-party and third-party imports for fix suggestions ([#11168](https://togithub.com/astral-sh/ruff/pull/11168))
##### Rule changes
- \[`flake8-bugbear`] Ignore non-abstract class attributes when enforcing `B024` ([#11210](https://togithub.com/astral-sh/ruff/pull/11210))
- \[`flake8-logging`] Include inline instantiations when detecting loggers ([#11154](https://togithub.com/astral-sh/ruff/pull/11154))
- \[`pylint`] Also emit `PLR0206` for properties with variadic parameters ([#11200](https://togithub.com/astral-sh/ruff/pull/11200))
- \[`ruff`] Detect duplicate codes as part of `unused-noqa` (`RUF100`) ([#10850](https://togithub.com/astral-sh/ruff/pull/10850))
##### Formatter
- Avoid multiline expression if format specifier is present ([#11123](https://togithub.com/astral-sh/ruff/pull/11123))
##### LSP
- Write `ruff server` setup guide for Helix ([#11183](https://togithub.com/astral-sh/ruff/pull/11183))
- `ruff server` no longer hangs after shutdown ([#11222](https://togithub.com/astral-sh/ruff/pull/11222))
- `ruff server` reads from a configuration TOML file in the user configuration directory if no local configuration exists ([#11225](https://togithub.com/astral-sh/ruff/pull/11225))
- `ruff server` respects `per-file-ignores` configuration ([#11224](https://togithub.com/astral-sh/ruff/pull/11224))
- `ruff server`: Support a custom TOML configuration file ([#11140](https://togithub.com/astral-sh/ruff/pull/11140))
- `ruff server`: Support setting to prioritize project configuration over editor configuration ([#11086](https://togithub.com/astral-sh/ruff/pull/11086))
##### Bug fixes
- Avoid debug assertion around NFKC renames ([#11249](https://togithub.com/astral-sh/ruff/pull/11249))
- \[`pyflakes`] Prioritize `redefined-while-unused` over `unused-import` ([#11173](https://togithub.com/astral-sh/ruff/pull/11173))
- \[`ruff`] Respect `async` expressions in comprehension bodies ([#11219](https://togithub.com/astral-sh/ruff/pull/11219))
- \[`pygrep_hooks`] Fix `blanket-noqa` panic when last line has noqa with no newline (`PGH004`) ([#11108](https://togithub.com/astral-sh/ruff/pull/11108))
- \[`perflint`] Ignore list-copy recommendations for async `for` loops ([#11250](https://togithub.com/astral-sh/ruff/pull/11250))
- \[`pyflakes`] Improve `invalid-print-syntax` documentation ([#11171](https://togithub.com/astral-sh/ruff/pull/11171))
##### Performance
- Avoid allocations for isort module names ([#11251](https://togithub.com/astral-sh/ruff/pull/11251))
- Build a separate ARM wheel for macOS ([#11149](https://togithub.com/astral-sh/ruff/pull/11149))
Configuration
📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).
🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
[ ] If you want to rebase/retry this PR, check this box
This PR contains the following updates:
==0.4.2
->==0.5.5
Release Notes
astral-sh/ruff (ruff)
### [`v0.5.5`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#055) [Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.4...0.5.5) ##### Preview features - \[`fastapi`] Implement `fastapi-redundant-response-model` (`FAST001`) and `fastapi-non-annotated-dependency`(`FAST002`) ([#11579](https://togithub.com/astral-sh/ruff/pull/11579)) - \[`pydoclint`] Implement `docstring-missing-exception` (`DOC501`) and `docstring-extraneous-exception` (`DOC502`) ([#11471](https://togithub.com/astral-sh/ruff/pull/11471)) ##### Rule changes - \[`numpy`] Fix NumPy 2.0 rule for `np.alltrue` and `np.sometrue` ([#12473](https://togithub.com/astral-sh/ruff/pull/12473)) - \[`numpy`] Ignore `NPY201` inside `except` blocks for compatibility with older numpy versions ([#12490](https://togithub.com/astral-sh/ruff/pull/12490)) - \[`pep8-naming`] Avoid applying `ignore-names` to `self` and `cls` function names (`N804`, `N805`) ([#12497](https://togithub.com/astral-sh/ruff/pull/12497)) ##### Formatter - Fix incorrect placement of leading function comment with type params ([#12447](https://togithub.com/astral-sh/ruff/pull/12447)) ##### Server - Do not bail code action resolution when a quick fix is requested ([#12462](https://togithub.com/astral-sh/ruff/pull/12462)) ##### Bug fixes - Fix `Ord` implementation of `cmp_fix` ([#12471](https://togithub.com/astral-sh/ruff/pull/12471)) - Raise syntax error for unparenthesized generator expression in multi-argument call ([#12445](https://togithub.com/astral-sh/ruff/pull/12445)) - \[`pydoclint`] Fix panic in `DOC501` reported in [#12428](https://togithub.com/astral-sh/ruff/pull/12428) ([#12435](https://togithub.com/astral-sh/ruff/pull/12435)) - \[`flake8-bugbear`] Allow singleton tuples with starred expressions in `B013` ([#12484](https://togithub.com/astral-sh/ruff/pull/12484)) ##### Documentation - Add Eglot setup guide for Emacs editor ([#12426](https://togithub.com/astral-sh/ruff/pull/12426)) - Add note about the breaking change in `nvim-lspconfig` ([#12507](https://togithub.com/astral-sh/ruff/pull/12507)) - Add note to include notebook files for native server ([#12449](https://togithub.com/astral-sh/ruff/pull/12449)) - Add setup docs for Zed editor ([#12501](https://togithub.com/astral-sh/ruff/pull/12501)) ### [`v0.5.4`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#054) [Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.3...0.5.4) ##### Rule changes - \[`ruff`] Rename `RUF007` to `zip-instead-of-pairwise` ([#12399](https://togithub.com/astral-sh/ruff/pull/12399)) ##### Bug fixes - \[`flake8-builtins`] Avoid shadowing diagnostics for `@override` methods ([#12415](https://togithub.com/astral-sh/ruff/pull/12415)) - \[`flake8-comprehensions`] Insert parentheses for multi-argument generators ([#12422](https://togithub.com/astral-sh/ruff/pull/12422)) - \[`pydocstyle`] Handle escaped docstrings within docstring (`D301`) ([#12192](https://togithub.com/astral-sh/ruff/pull/12192)) ##### Documentation - Fix GitHub link to Neovim setup ([#12410](https://togithub.com/astral-sh/ruff/pull/12410)) - Fix `output-format` default in settings reference ([#12409](https://togithub.com/astral-sh/ruff/pull/12409)) ### [`v0.5.3`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#053) [Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.2...0.5.3) **Ruff 0.5.3 marks the stable release of the Ruff language server and introduces revamped [documentation](https://docs.astral.sh/ruff/editors), including [setup guides for your editor of choice](https://docs.astral.sh/ruff/editors/setup) and [the language server itself](https://docs.astral.sh/ruff/editors/settings)**. ##### Preview features - Formatter: Insert empty line between suite and alternative branch after function/class definition ([#12294](https://togithub.com/astral-sh/ruff/pull/12294)) - \[`pyupgrade`] Implement `unnecessary-default-type-args` (`UP043`) ([#12371](https://togithub.com/astral-sh/ruff/pull/12371)) ##### Rule changes - \[`flake8-bugbear`] Detect enumerate iterations in `loop-iterator-mutation` (`B909`) ([#12366](https://togithub.com/astral-sh/ruff/pull/12366)) - \[`flake8-bugbear`] Remove `discard`, `remove`, and `pop` allowance for `loop-iterator-mutation` (`B909`) ([#12365](https://togithub.com/astral-sh/ruff/pull/12365)) - \[`pylint`] Allow `repeated-equality-comparison` for mixed operations (`PLR1714`) ([#12369](https://togithub.com/astral-sh/ruff/pull/12369)) - \[`pylint`] Ignore `self` and `cls` when counting arguments (`PLR0913`) ([#12367](https://togithub.com/astral-sh/ruff/pull/12367)) - \[`pylint`] Use UTF-8 as default encoding in `unspecified-encoding` fix (`PLW1514`) ([#12370](https://togithub.com/astral-sh/ruff/pull/12370)) ##### Server - Build settings index in parallel for the native server ([#12299](https://togithub.com/astral-sh/ruff/pull/12299)) - Use fallback settings when indexing the project ([#12362](https://togithub.com/astral-sh/ruff/pull/12362)) - Consider `--preview` flag for `server` subcommand for the linter and formatter ([#12208](https://togithub.com/astral-sh/ruff/pull/12208)) ##### Bug fixes - \[`flake8-comprehensions`] Allow additional arguments for `sum` and `max` comprehensions (`C419`) ([#12364](https://togithub.com/astral-sh/ruff/pull/12364)) - \[`pylint`] Avoid dropping extra boolean operations in `repeated-equality-comparison` (`PLR1714`) ([#12368](https://togithub.com/astral-sh/ruff/pull/12368)) - \[`pylint`] Consider expression before statement when determining binding kind (`PLR1704`) ([#12346](https://togithub.com/astral-sh/ruff/pull/12346)) ##### Documentation - Add docs for Ruff language server ([#12344](https://togithub.com/astral-sh/ruff/pull/12344)) - Migrate to standalone docs repo ([#12341](https://togithub.com/astral-sh/ruff/pull/12341)) - Update versioning policy for editor integration ([#12375](https://togithub.com/astral-sh/ruff/pull/12375)) ##### Other changes - Publish Wasm API to npm ([#12317](https://togithub.com/astral-sh/ruff/pull/12317)) ### [`v0.5.2`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#052) [Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.1...0.5.2) ##### Preview features - Use `space` separator before parenthesized expressions in comprehensions with leading comments ([#12282](https://togithub.com/astral-sh/ruff/pull/12282)) - \[`flake8-async`] Update `ASYNC100` to include `anyio` and `asyncio` ([#12221](https://togithub.com/astral-sh/ruff/pull/12221)) - \[`flake8-async`] Update `ASYNC109` to include `anyio` and `asyncio` ([#12236](https://togithub.com/astral-sh/ruff/pull/12236)) - \[`flake8-async`] Update `ASYNC110` to include `anyio` and `asyncio` ([#12261](https://togithub.com/astral-sh/ruff/pull/12261)) - \[`flake8-async`] Update `ASYNC115` to include `anyio` and `asyncio` ([#12262](https://togithub.com/astral-sh/ruff/pull/12262)) - \[`flake8-async`] Update `ASYNC116` to include `anyio` and `asyncio` ([#12266](https://togithub.com/astral-sh/ruff/pull/12266)) ##### Rule changes - \[`flake8-return`] Exempt properties from explicit return rule (`RET501`) ([#12243](https://togithub.com/astral-sh/ruff/pull/12243)) - \[`numpy`] Add `np.NAN`-to-`np.nan` diagnostic ([#12292](https://togithub.com/astral-sh/ruff/pull/12292)) - \[`refurb`] Make `list-reverse-copy` an unsafe fix ([#12303](https://togithub.com/astral-sh/ruff/pull/12303)) ##### Server - Consider `include` and `extend-include` settings in native server ([#12252](https://togithub.com/astral-sh/ruff/pull/12252)) - Include nested configurations in settings reloading ([#12253](https://togithub.com/astral-sh/ruff/pull/12253)) ##### CLI - Omit code frames for fixes with empty ranges ([#12304](https://togithub.com/astral-sh/ruff/pull/12304)) - Warn about formatter incompatibility for `D203` ([#12238](https://togithub.com/astral-sh/ruff/pull/12238)) ##### Bug fixes - Make cache-write failures non-fatal on Windows ([#12302](https://togithub.com/astral-sh/ruff/pull/12302)) - Treat `not` operations as boolean tests ([#12301](https://togithub.com/astral-sh/ruff/pull/12301)) - \[`flake8-bandit`] Avoid `S310` violations for HTTP-safe f-strings ([#12305](https://togithub.com/astral-sh/ruff/pull/12305)) - \[`flake8-bandit`] Support explicit string concatenations in S310 HTTP detection ([#12315](https://togithub.com/astral-sh/ruff/pull/12315)) - \[`flake8-bandit`] fix S113 false positive for httpx without `timeout` argument ([#12213](https://togithub.com/astral-sh/ruff/pull/12213)) - \[`pycodestyle`] Remove "non-obvious" allowance for E721 ([#12300](https://togithub.com/astral-sh/ruff/pull/12300)) - \[`pyflakes`] Consider `with` blocks as single-item branches for redefinition analysis ([#12311](https://togithub.com/astral-sh/ruff/pull/12311)) - \[`refurb`] Restrict forwarding for `newline` argument in `open()` calls to Python versions >= 3.10 ([#12244](https://togithub.com/astral-sh/ruff/pull/12244)) ##### Documentation - Update help and documentation to reflect `--output-format full` default ([#12248](https://togithub.com/astral-sh/ruff/pull/12248)) ##### Performance - Use more threads when discovering Python files ([#12258](https://togithub.com/astral-sh/ruff/pull/12258)) ### [`v0.5.1`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#051) [Compare Source](https://togithub.com/astral-sh/ruff/compare/0.5.0...0.5.1) ##### Preview features - \[`flake8-bugbear`] Implement mutable-contextvar-default (B039) ([#12113](https://togithub.com/astral-sh/ruff/pull/12113)) - \[`pycodestyle`] Whitespace after decorator (`E204`) ([#12140](https://togithub.com/astral-sh/ruff/pull/12140)) - \[`pytest`] Reverse `PT001` and `PT0023` defaults ([#12106](https://togithub.com/astral-sh/ruff/pull/12106)) ##### Rule changes - Enable token-based rules on source with syntax errors ([#11950](https://togithub.com/astral-sh/ruff/pull/11950)) - \[`flake8-bandit`] Detect `httpx` for `S113` ([#12174](https://togithub.com/astral-sh/ruff/pull/12174)) - \[`numpy`] Update `NPY201` to include exception deprecations ([#12065](https://togithub.com/astral-sh/ruff/pull/12065)) - \[`pylint`] Generate autofix for `duplicate-bases` (`PLE0241`) ([#12105](https://togithub.com/astral-sh/ruff/pull/12105)) ##### Server - Avoid syntax error notification for source code actions ([#12148](https://togithub.com/astral-sh/ruff/pull/12148)) - Consider the content of the new cells during notebook sync ([#12203](https://togithub.com/astral-sh/ruff/pull/12203)) - Fix replacement edit range computation ([#12171](https://togithub.com/astral-sh/ruff/pull/12171)) ##### Bug fixes - Disable auto-fix when source has syntax errors ([#12134](https://togithub.com/astral-sh/ruff/pull/12134)) - Fix cache key collisions for paths with separators ([#12159](https://togithub.com/astral-sh/ruff/pull/12159)) - Make `requires-python` inference robust to `==` ([#12091](https://togithub.com/astral-sh/ruff/pull/12091)) - Use char-wise width instead of `str`-width ([#12135](https://togithub.com/astral-sh/ruff/pull/12135)) - \[`pycodestyle`] Avoid `E275` if keyword followed by comma ([#12136](https://togithub.com/astral-sh/ruff/pull/12136)) - \[`pycodestyle`] Avoid `E275` if keyword is followed by a semicolon ([#12095](https://togithub.com/astral-sh/ruff/pull/12095)) - \[`pylint`] Skip [dummy variables](https://docs.astral.sh/ruff/settings/#lint_dummy-variable-rgx) for `PLR1704` ([#12190](https://togithub.com/astral-sh/ruff/pull/12190)) ##### Performance - Remove allocation in `parse_identifier` ([#12103](https://togithub.com/astral-sh/ruff/pull/12103)) - Use `CompactString` for `Identifier` AST node ([#12101](https://togithub.com/astral-sh/ruff/pull/12101)) ### [`v0.5.0`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#050) [Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.10...0.5.0) Check out the [blog post](https://astral.sh/blog/ruff-v0.5.0) for a migration guide and overview of the changes! ##### Breaking changes See also, the "Remapped rules" section which may result in disabled rules. - Follow the XDG specification to discover user-level configurations on macOS (same as on other Unix platforms) - Selecting `ALL` now excludes deprecated rules - The released archives now include an extra level of nesting, which can be removed with `--strip-components=1` when untarring. - The release artifact's file name no longer includes the version tag. This enables users to install via `/latest` URLs on GitHub. ##### Deprecations The following rules are now deprecated: - [`syntax-error`](https://docs.astral.sh/ruff/rules/syntax-error/) (`E999`): Syntax errors are now always shown ##### Remapped rules The following rules have been remapped to new rule codes: - [`blocking-http-call-in-async-function`](https://docs.astral.sh/ruff/rules/blocking-http-call-in-async-function/): `ASYNC100` to `ASYNC210` - [`open-sleep-or-subprocess-in-async-function`](https://docs.astral.sh/ruff/rules/open-sleep-or-subprocess-in-async-function/): `ASYNC101` split into `ASYNC220`, `ASYNC221`, `ASYNC230`, and `ASYNC251` - [`blocking-os-call-in-async-function`](https://docs.astral.sh/ruff/rules/blocking-os-call-in-async-function/): `ASYNC102` has been merged into `ASYNC220` and `ASYNC221` - [`trio-timeout-without-await`](https://docs.astral.sh/ruff/rules/trio-timeout-without-await/): `TRIO100` to `ASYNC100` - [`trio-sync-call`](https://docs.astral.sh/ruff/rules/trio-sync-call/): `TRIO105` to `ASYNC105` - [`trio-async-function-with-timeout`](https://docs.astral.sh/ruff/rules/trio-async-function-with-timeout/): `TRIO109` to `ASYNC109` - [`trio-unneeded-sleep`](https://docs.astral.sh/ruff/rules/trio-unneeded-sleep/): `TRIO110` to `ASYNC110` - [`trio-zero-sleep-call`](https://docs.astral.sh/ruff/rules/trio-zero-sleep-call/): `TRIO115` to `ASYNC115` - [`repeated-isinstance-calls`](https://docs.astral.sh/ruff/rules/repeated-isinstance-calls/): `PLR1701` to `SIM101` ##### Stabilization The following rules have been stabilized and are no longer in preview: - [`mutable-fromkeys-value`](https://docs.astral.sh/ruff/rules/mutable-fromkeys-value/) (`RUF024`) - [`default-factory-kwarg`](https://docs.astral.sh/ruff/rules/default-factory-kwarg/) (`RUF026`) - [`django-extra`](https://docs.astral.sh/ruff/rules/django-extra/) (`S610`) - [`manual-dict-comprehension`](https://docs.astral.sh/ruff/rules/manual-dict-comprehension/) (`PERF403`) - [`print-empty-string`](https://docs.astral.sh/ruff/rules/print-empty-string/) (`FURB105`) - [`readlines-in-for`](https://docs.astral.sh/ruff/rules/readlines-in-for/) (`FURB129`) - [`if-expr-min-max`](https://docs.astral.sh/ruff/rules/if-expr-min-max/) (`FURB136`) - [`bit-count`](https://docs.astral.sh/ruff/rules/bit-count/) (`FURB161`) - [`redundant-log-base`](https://docs.astral.sh/ruff/rules/redundant-log-base/) (`FURB163`) - [`regex-flag-alias`](https://docs.astral.sh/ruff/rules/regex-flag-alias/) (`FURB167`) - [`isinstance-type-none`](https://docs.astral.sh/ruff/rules/isinstance-type-none/) (`FURB168`) - [`type-none-comparison`](https://docs.astral.sh/ruff/rules/type-none-comparison/) (`FURB169`) - [`implicit-cwd`](https://docs.astral.sh/ruff/rules/implicit-cwd/) (`FURB177`) - [`hashlib-digest-hex`](https://docs.astral.sh/ruff/rules/hashlib-digest-hex/) (`FURB181`) - [`list-reverse-copy`](https://docs.astral.sh/ruff/rules/list-reverse-copy/) (`FURB187`) - [`bad-open-mode`](https://docs.astral.sh/ruff/rules/bad-open-mode/) (`PLW1501`) - [`empty-comment`](https://docs.astral.sh/ruff/rules/empty-comment/) (`PLR2044`) - [`global-at-module-level`](https://docs.astral.sh/ruff/rules/global-at-module-level/) (`PLW0604`) - [`misplaced-bare-raise`](https://docs.astral.sh/ruff/rules/misplaced-bare-raise%60/) (`PLE0744`) - [`non-ascii-import-name`](https://docs.astral.sh/ruff/rules/non-ascii-import-name/) (`PLC2403`) - [`non-ascii-name`](https://docs.astral.sh/ruff/rules/non-ascii-name/) (`PLC2401`) - [`nonlocal-and-global`](https://docs.astral.sh/ruff/rules/nonlocal-and-global/) (`PLE0115`) - [`potential-index-error`](https://docs.astral.sh/ruff/rules/potential-index-error/) (`PLE0643`) - [`redeclared-assigned-name`](https://docs.astral.sh/ruff/rules/redeclared-assigned-name/) (`PLW0128`) - [`redefined-argument-from-local`](https://docs.astral.sh/ruff/rules/redefined-argument-from-local/) (`PLR1704`) - [`repeated-keyword-argument`](https://docs.astral.sh/ruff/rules/repeated-keyword-argument/) (`PLE1132`) - [`super-without-brackets`](https://docs.astral.sh/ruff/rules/super-without-brackets/) (`PLW0245`) - [`unnecessary-list-index-lookup`](https://docs.astral.sh/ruff/rules/unnecessary-list-index-lookup/) (`PLR1736`) - [`useless-exception-statement`](https://docs.astral.sh/ruff/rules/useless-exception-statement/) (`PLW0133`) - [`useless-with-lock`](https://docs.astral.sh/ruff/rules/useless-with-lock/) (`PLW2101`) The following behaviors have been stabilized: - [`is-literal`](https://docs.astral.sh/ruff/rules/is-literal/) (`F632`) now warns for identity checks against list, set or dictionary literals - [`needless-bool`](https://docs.astral.sh/ruff/rules/needless-bool/) (`SIM103`) now detects `if` expressions with implicit `else` branches - [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`) now allows `os.environ` modifications between import statements - [`type-comparison`](https://docs.astral.sh/ruff/rules/type-comparison/) (`E721`) now allows idioms such as `type(x) is int` - [`yoda-condition`](https://docs.astral.sh/ruff/rules/yoda-conditions/) (`SIM300`) now flags a wider range of expressions ##### Removals The following deprecated settings have been removed: - `output-format=text`; use `output-format=concise` or `output-format=full` - `tab-size`; use `indent-width` The following deprecated CLI options have been removed: - `--show-source`; use `--output-format=full` - `--no-show-source`; use `--output-format=concise` The following deprecated CLI commands have been removed: - `ruffConfiguration
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