astral-sh/ruff (ruff)
### [`v0.4.2`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#042)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.1...v0.4.2)
##### Rule changes
- \[`flake8-pyi`] Allow for overloaded `__exit__` and `__aexit__` definitions (`PYI036`) ([#11057](https://togithub.com/astral-sh/ruff/pull/11057))
- \[`pyupgrade`] Catch usages of `"%s" % var` and provide an unsafe fix (`UP031`) ([#11019](https://togithub.com/astral-sh/ruff/pull/11019))
- \[`refurb`] Implement new rule that suggests min/max over `sorted()` (`FURB192`) ([#10868](https://togithub.com/astral-sh/ruff/pull/10868))
##### Server
- Fix an issue with missing diagnostics for Neovim and Helix ([#11092](https://togithub.com/astral-sh/ruff/pull/11092))
- Implement hover documentation for `noqa` codes ([#11096](https://togithub.com/astral-sh/ruff/pull/11096))
- Introduce common Ruff configuration options with new server settings ([#11062](https://togithub.com/astral-sh/ruff/pull/11062))
##### Bug fixes
- Use `macos-12` for building release wheels to enable macOS 11 compatibility ([#11146](https://togithub.com/astral-sh/ruff/pull/11146))
- \[`flake8-blind-expect`] Allow raise from in `BLE001` ([#11131](https://togithub.com/astral-sh/ruff/pull/11131))
- \[`flake8-pyi`] Allow simple assignments to `None` in enum class scopes (`PYI026`) ([#11128](https://togithub.com/astral-sh/ruff/pull/11128))
- \[`flake8-simplify`] Avoid raising `SIM911` for non-`zip` attribute calls ([#11126](https://togithub.com/astral-sh/ruff/pull/11126))
- \[`refurb`] Avoid `operator.itemgetter` suggestion for single-item tuple ([#11095](https://togithub.com/astral-sh/ruff/pull/11095))
- \[`ruff`] Respect per-file-ignores for `RUF100` with no other diagnostics ([#11058](https://togithub.com/astral-sh/ruff/pull/11058))
- \[`ruff`] Fix async comprehension false positive (`RUF029`) ([#11070](https://togithub.com/astral-sh/ruff/pull/11070))
##### Documentation
- \[`flake8-bugbear`] Document explicitly disabling strict zip (`B905`) ([#11040](https://togithub.com/astral-sh/ruff/pull/11040))
- \[`flake8-type-checking`] Mention `lint.typing-modules` in `TCH001`, `TCH002`, and `TCH003` ([#11144](https://togithub.com/astral-sh/ruff/pull/11144))
- \[`isort`] Improve documentation around custom `isort` sections ([#11050](https://togithub.com/astral-sh/ruff/pull/11050))
- \[`pylint`] Fix documentation oversight for `invalid-X-returns` ([#11094](https://togithub.com/astral-sh/ruff/pull/11094))
##### Performance
- Use `matchit` to resolve per-file settings ([#11111](https://togithub.com/astral-sh/ruff/pull/11111))
### [`v0.4.1`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#041)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.0...v0.4.1)
##### Preview features
- \[`pylint`] Implement `invalid-hash-returned` (`PLE0309`) ([#10961](https://togithub.com/astral-sh/ruff/pull/10961))
- \[`pylint`] Implement `invalid-index-returned` (`PLE0305`) ([#10962](https://togithub.com/astral-sh/ruff/pull/10962))
##### Bug fixes
- \[`pylint`] Allow `NoReturn`-like functions for `__str__`, `__len__`, etc. (`PLE0307`) ([#11017](https://togithub.com/astral-sh/ruff/pull/11017))
- Parser: Use empty range when there's "gap" in token source ([#11032](https://togithub.com/astral-sh/ruff/pull/11032))
- \[`ruff`] Ignore stub functions in `unused-async` (`RUF029`) ([#11026](https://togithub.com/astral-sh/ruff/pull/11026))
- Parser: Expect indented case block instead of match stmt ([#11033](https://togithub.com/astral-sh/ruff/pull/11033))
### [`v0.4.0`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#040)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.3.7...v0.4.0)
##### A new, hand-written parser
Ruff's new parser is **>2x faster**, which translates to a **20-40% speedup** for all linting and formatting invocations.
There's a lot to say about this exciting change, so check out the [blog post](https://astral.sh/blog/ruff-v0.4.0) for more details!
See [#10036](https://togithub.com/astral-sh/ruff/pull/10036) for implementation details.
##### A new language server in Rust
With this release, we also want to highlight our new language server. `ruff server` is a Rust-powered language
server that comes built-in with Ruff. It can be used with any editor that supports the [Language Server Protocol](https://microsoft.github.io/language-server-protocol/) (LSP).
It uses a multi-threaded, lock-free architecture inspired by `rust-analyzer` and it will open the door for a lot
of exciting features. It’s also faster than our previous [Python-based language server](https://togithub.com/astral-sh/ruff-lsp)
\-- but you probably guessed that already.
`ruff server` is only in alpha, but it has a lot of features that you can try out today:
- Lints Python files automatically and shows quick-fixes when available
- Formats Python files, with support for range formatting
- Comes with commands for quickly performing actions: `ruff.applyAutofix`, `ruff.applyFormat`, and `ruff.applyOrganizeImports`
- Supports `source.fixAll` and `source.organizeImports` source actions
- Automatically reloads your project configuration when you change it
To setup `ruff server` with your editor, refer to the [README.md](https://togithub.com/astral-sh/ruff/blob/main/crates/ruff_server/README.md).
##### Preview features
- \[`pycodestyle`] Do not trigger `E3` rules on `def`s following a function/method with a dummy body ([#10704](https://togithub.com/astral-sh/ruff/pull/10704))
- \[`pylint`] Implement `invalid-bytes-returned` (`E0308`) ([#10959](https://togithub.com/astral-sh/ruff/pull/10959))
- \[`pylint`] Implement `invalid-length-returned` (`E0303`) ([#10963](https://togithub.com/astral-sh/ruff/pull/10963))
- \[`pylint`] Implement `self-cls-assignment` (`W0642`) ([#9267](https://togithub.com/astral-sh/ruff/pull/9267))
- \[`pylint`] Omit stubs from `invalid-bool` and `invalid-str-return-type` ([#11008](https://togithub.com/astral-sh/ruff/pull/11008))
- \[`ruff`] New rule `unused-async` (`RUF029`) to detect unneeded `async` keywords on functions ([#9966](https://togithub.com/astral-sh/ruff/pull/9966))
##### Rule changes
- \[`flake8-bandit`] Allow `urllib.request.urlopen` calls with static `Request` argument (`S310`) ([#10964](https://togithub.com/astral-sh/ruff/pull/10964))
- \[`flake8-bugbear`] Treat `raise NotImplemented`-only bodies as stub functions (`B006`) ([#10990](https://togithub.com/astral-sh/ruff/pull/10990))
- \[`flake8-slots`] Respect same-file `Enum` subclasses (`SLOT000`) ([#11006](https://togithub.com/astral-sh/ruff/pull/11006))
- \[`pylint`] Support inverted comparisons (`PLR1730`) ([#10920](https://togithub.com/astral-sh/ruff/pull/10920))
##### Linter
- Improve handling of builtin symbols in linter rules ([#10919](https://togithub.com/astral-sh/ruff/pull/10919))
- Improve display of rules in `--show-settings` ([#11003](https://togithub.com/astral-sh/ruff/pull/11003))
- Improve inference capabilities of the `BuiltinTypeChecker` ([#10976](https://togithub.com/astral-sh/ruff/pull/10976))
- Resolve classes and functions relative to script name ([#10965](https://togithub.com/astral-sh/ruff/pull/10965))
- Improve performance of `RuleTable::any_enabled` ([#10971](https://togithub.com/astral-sh/ruff/pull/10971))
##### Server
*This section is devoted to updates for our new language server, written in Rust.*
- Enable ruff-specific source actions ([#10916](https://togithub.com/astral-sh/ruff/pull/10916))
- Refreshes diagnostics for open files when file configuration is changed ([#10988](https://togithub.com/astral-sh/ruff/pull/10988))
- Important errors are now shown as popups ([#10951](https://togithub.com/astral-sh/ruff/pull/10951))
- Introduce settings for directly configuring the linter and formatter ([#10984](https://togithub.com/astral-sh/ruff/pull/10984))
- Resolve configuration for each document individually ([#10950](https://togithub.com/astral-sh/ruff/pull/10950))
- Write a setup guide for Neovim ([#10987](https://togithub.com/astral-sh/ruff/pull/10987))
##### Configuration
- Add `RUFF_OUTPUT_FILE` environment variable support ([#10992](https://togithub.com/astral-sh/ruff/pull/10992))
##### Bug fixes
- Avoid `non-augmented-assignment` for reversed, non-commutative operators (`PLR6104`) ([#10909](https://togithub.com/astral-sh/ruff/pull/10909))
- Limit commutative non-augmented-assignments to primitive data types (`PLR6104`) ([#10912](https://togithub.com/astral-sh/ruff/pull/10912))
- Respect `per-file-ignores` for `RUF100` on blanket `# noqa` ([#10908](https://togithub.com/astral-sh/ruff/pull/10908))
- Consider `if` expression for parenthesized with items parsing ([#11010](https://togithub.com/astral-sh/ruff/pull/11010))
- Consider binary expr for parenthesized with items parsing ([#11012](https://togithub.com/astral-sh/ruff/pull/11012))
- Reset `FOR_TARGET` context for all kinds of parentheses ([#11009](https://togithub.com/astral-sh/ruff/pull/11009))
### [`v0.3.7`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#037)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.3.6...v0.3.7)
##### Preview features
- \[`flake8-bugbear`] Implement `loop-iterator-mutation` (`B909`) ([#9578](https://togithub.com/astral-sh/ruff/pull/9578))
- \[`pylint`] Implement rule to prefer augmented assignment (`PLR6104`) ([#9932](https://togithub.com/astral-sh/ruff/pull/9932))
##### Bug fixes
- Avoid TOCTOU errors in cache initialization ([#10884](https://togithub.com/astral-sh/ruff/pull/10884))
- \[`pylint`] Recode `nan-comparison` rule to `W0177` ([#10894](https://togithub.com/astral-sh/ruff/pull/10894))
- \[`pylint`] Reverse min-max logic in `if-stmt-min-max` ([#10890](https://togithub.com/astral-sh/ruff/pull/10890))
### [`v0.3.6`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#036)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.3.5...v0.3.6)
##### Preview features
- \[`pylint`] Implement `bad-staticmethod-argument` (`PLW0211`) ([#10781](https://togithub.com/astral-sh/ruff/pull/10781))
- \[`pylint`] Implement `if-stmt-min-max` (`PLR1730`, `PLR1731`) ([#10002](https://togithub.com/astral-sh/ruff/pull/10002))
- \[`pyupgrade`] Replace `str,Enum` multiple inheritance with `StrEnum` `UP042` ([#10713](https://togithub.com/astral-sh/ruff/pull/10713))
- \[`refurb`] Implement `if-expr-instead-of-or-operator` (`FURB110`) ([#10687](https://togithub.com/astral-sh/ruff/pull/10687))
- \[`refurb`] Implement `int-on-sliced-str` (`FURB166`) ([#10650](https://togithub.com/astral-sh/ruff/pull/10650))
- \[`refurb`] Implement `write-whole-file` (`FURB103`) ([#10802](https://togithub.com/astral-sh/ruff/pull/10802))
- \[`refurb`] Support `itemgetter` in `reimplemented-operator` (`FURB118`) ([#10526](https://togithub.com/astral-sh/ruff/pull/10526))
- \[`flake8_comprehensions`] Add `sum`/`min`/`max` to unnecessary comprehension check (`C419`) ([#10759](https://togithub.com/astral-sh/ruff/pull/10759))
##### Rule changes
- \[`pydocstyle`] Require capitalizing docstrings where the first sentence is a single word (`D403`) ([#10776](https://togithub.com/astral-sh/ruff/pull/10776))
- \[`pycodestyle`] Ignore annotated lambdas in class scopes (`E731`) ([#10720](https://togithub.com/astral-sh/ruff/pull/10720))
- \[`flake8-pyi`] Various improvements to PYI034 ([#10807](https://togithub.com/astral-sh/ruff/pull/10807))
- \[`flake8-slots`] Flag subclasses of call-based `typing.NamedTuple`s as well as subclasses of `collections.namedtuple()` (`SLOT002`) ([#10808](https://togithub.com/astral-sh/ruff/pull/10808))
- \[`pyflakes`] Allow forward references in class bases in stub files (`F821`) ([#10779](https://togithub.com/astral-sh/ruff/pull/10779))
- \[`pygrep-hooks`] Improve `blanket-noqa` error message (`PGH004`) ([#10851](https://togithub.com/astral-sh/ruff/pull/10851))
##### CLI
- Support `FORCE_COLOR` env var ([#10839](https://togithub.com/astral-sh/ruff/pull/10839))
##### Configuration
- Support negated patterns in `[extend-]per-file-ignores` ([#10852](https://togithub.com/astral-sh/ruff/pull/10852))
##### Bug fixes
- \[`flake8-import-conventions`] Accept non-aliased (but correct) import in `unconventional-import-alias` (`ICN001`) ([#10729](https://togithub.com/astral-sh/ruff/pull/10729))
- \[`flake8-quotes`] Add semantic model flag when inside f-string replacement field ([#10766](https://togithub.com/astral-sh/ruff/pull/10766))
- \[`pep8-naming`] Recursively resolve `TypeDicts` for N815 violations ([#10719](https://togithub.com/astral-sh/ruff/pull/10719))
- \[`flake8-quotes`] Respect `Q00*` ignores in `flake8-quotes` rules ([#10728](https://togithub.com/astral-sh/ruff/pull/10728))
- \[`flake8-simplify`] Show negated condition in `needless-bool` diagnostics (`SIM103`) ([#10854](https://togithub.com/astral-sh/ruff/pull/10854))
- \[`ruff`] Use within-scope shadowed bindings in `asyncio-dangling-task` (`RUF006`) ([#10793](https://togithub.com/astral-sh/ruff/pull/10793))
- \[`flake8-pytest-style`] Fix single-tuple conversion in `pytest-parametrize-values-wrong-type` (`PT007`) ([#10862](https://togithub.com/astral-sh/ruff/pull/10862))
- \[`flake8-return`] Ignore assignments to annotated variables in `unnecessary-assign` (`RET504`) ([#10741](https://togithub.com/astral-sh/ruff/pull/10741))
- \[`refurb`] Do not allow any keyword arguments for `read-whole-file` in `rb` mode (`FURB101`) ([#10803](https://togithub.com/astral-sh/ruff/pull/10803))
- \[`pylint`] Don't recommend decorating staticmethods with `@singledispatch` (`PLE1519`, `PLE1520`) ([#10637](https://togithub.com/astral-sh/ruff/pull/10637))
- \[`pydocstyle`] Use section name range for all section-related docstring diagnostics ([#10740](https://togithub.com/astral-sh/ruff/pull/10740))
- Respect `# noqa` directives on `__all__` openers ([#10798](https://togithub.com/astral-sh/ruff/pull/10798))
### [`v0.3.5`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#035)
[Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.3.4...v0.3.5)
##### Preview features
- \[`pylint`] Implement `modified-iterating-set` (`E4703`) ([#10473](https://togithub.com/astral-sh/ruff/pull/10473))
- \[`refurb`] Implement `for-loop-set-mutations` (`FURB142`) ([#10583](https://togithub.com/astral-sh/ruff/pull/10583))
- \[`refurb`] Implement `unnecessary-from-float` (`FURB164`) ([#10647](https://togithub.com/astral-sh/ruff/pull/10647))
- \[`refurb`] Implement `verbose-decimal-constructor` (`FURB157`) ([#10533](https://togithub.com/astral-sh/ruff/pull/10533))
##### Rule changes
- \[`flake8-comprehensions`] Handled special case for `C401` which also matches `C416` ([#10596](https://togithub.com/astral-sh/ruff/pull/10596))
- \[`flake8-pyi`] Mark `unaliased-collections-abc-set-import` fix as "safe" for more cases in stub files (`PYI025`) ([#10547](https://togithub.com/astral-sh/ruff/pull/10547))
- \[`numpy`] Add `row_stack` to NumPy 2.0 migration rule ([#10646](https://togithub.com/astral-sh/ruff/pull/10646))
- \[`pycodestyle`] Allow cell magics before an import (`E402`) ([#10545](https://togithub.com/astral-sh/ruff/pull/10545))
- \[`pycodestyle`] Avoid blank line rules for the first logical line in cell ([#10291](https://togithub.com/astral-sh/ruff/pull/10291))
##### Configuration
- Respected nested namespace packages ([#10541](https://togithub.com/astral-sh/ruff/pull/10541))
- \[`flake8-boolean-trap`] Add setting for user defined allowed boolean trap ([#10531](https://togithub.com/astral-sh/ruff/pull/10531))
##### Bug fixes
- Correctly handle references in `__all__` definitions when renaming symbols in autofixes ([#10527](https://togithub.com/astral-sh/ruff/pull/10527))
- Track ranges of names inside `__all__` definitions ([#10525](https://togithub.com/astral-sh/ruff/pull/10525))
- \[`flake8-bugbear`] Avoid false positive for usage after `continue` (`B031`) ([#10539](https://togithub.com/astral-sh/ruff/pull/10539))
- \[`flake8-copyright`] Accept commas in default copyright pattern ([#9498](https://togithub.com/astral-sh/ruff/pull/9498))
- \[`flake8-datetimez`] Allow f-strings with `%z` for `DTZ007` ([#10651](https://togithub.com/astral-sh/ruff/pull/10651))
- \[`flake8-pytest-style`] Fix `PT014` autofix for last item in list ([#10532](https://togithub.com/astral-sh/ruff/pull/10532))
- \[`flake8-quotes`] Ignore `Q000`, `Q001` when string is inside forward ref ([#10585](https://togithub.com/astral-sh/ruff/pull/10585))
- \[`isort`] Always place non-relative imports after relative imports ([#10669](https://togithub.com/astral-sh/ruff/pull/10669))
- \[`isort`] Respect Unicode characters in import sorting ([#10529](https://togithub.com/astral-sh/ruff/pull/10529))
- \[`pyflakes`] Fix F821 false negatives when `from __future__ import annotations` is active (attempt 2) ([#10524](https://togithub.com/astral-sh/ruff/pull/10524))
- \[`pyflakes`] Make `unnecessary-lambda` an always-unsafe fix ([#10668](https://togithub.com/astral-sh/ruff/pull/10668))
- \[`pylint`] Fixed false-positive on the rule `PLW1641` (`eq-without-hash`) ([#10566](https://togithub.com/astral-sh/ruff/pull/10566))
- \[`ruff`] Fix panic in unused `# noqa` removal with multi-byte space (`RUF100`) ([#10682](https://togithub.com/astral-sh/ruff/pull/10682))
##### Documentation
- Add PR title format to `CONTRIBUTING.md` ([#10665](https://togithub.com/astral-sh/ruff/pull/10665))
- Fix list markup to include blank lines required ([#10591](https://togithub.com/astral-sh/ruff/pull/10591))
- Put `flake8-logging` next to the other flake8 plugins in registry ([#10587](https://togithub.com/astral-sh/ruff/pull/10587))
- \[`flake8-bandit`] Update warning message for rule `S305` to address insecure block cipher mode use ([#10602](https://togithub.com/astral-sh/ruff/pull/10602))
- \[`flake8-bugbear`] Document use of anonymous assignment in `useless-expression` ([#10551](https://togithub.com/astral-sh/ruff/pull/10551))
- \[`flake8-datetimez`] Clarify error messages and docs for `DTZ` rules ([#10621](https://togithub.com/astral-sh/ruff/pull/10621))
- \[`pycodestyle`] Use same before vs. after numbers for `space-around-operator` ([#10640](https://togithub.com/astral-sh/ruff/pull/10640))
- \[`ruff`] Change `quadratic-list-summation` docs to use `iadd` consistently ([#10666](https://togithub.com/astral-sh/ruff/pull/10666))
Configuration
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This PR contains the following updates:
==0.3.4
->==0.4.2
Release Notes
astral-sh/ruff (ruff)
### [`v0.4.2`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#042) [Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.1...v0.4.2) ##### Rule changes - \[`flake8-pyi`] Allow for overloaded `__exit__` and `__aexit__` definitions (`PYI036`) ([#11057](https://togithub.com/astral-sh/ruff/pull/11057)) - \[`pyupgrade`] Catch usages of `"%s" % var` and provide an unsafe fix (`UP031`) ([#11019](https://togithub.com/astral-sh/ruff/pull/11019)) - \[`refurb`] Implement new rule that suggests min/max over `sorted()` (`FURB192`) ([#10868](https://togithub.com/astral-sh/ruff/pull/10868)) ##### Server - Fix an issue with missing diagnostics for Neovim and Helix ([#11092](https://togithub.com/astral-sh/ruff/pull/11092)) - Implement hover documentation for `noqa` codes ([#11096](https://togithub.com/astral-sh/ruff/pull/11096)) - Introduce common Ruff configuration options with new server settings ([#11062](https://togithub.com/astral-sh/ruff/pull/11062)) ##### Bug fixes - Use `macos-12` for building release wheels to enable macOS 11 compatibility ([#11146](https://togithub.com/astral-sh/ruff/pull/11146)) - \[`flake8-blind-expect`] Allow raise from in `BLE001` ([#11131](https://togithub.com/astral-sh/ruff/pull/11131)) - \[`flake8-pyi`] Allow simple assignments to `None` in enum class scopes (`PYI026`) ([#11128](https://togithub.com/astral-sh/ruff/pull/11128)) - \[`flake8-simplify`] Avoid raising `SIM911` for non-`zip` attribute calls ([#11126](https://togithub.com/astral-sh/ruff/pull/11126)) - \[`refurb`] Avoid `operator.itemgetter` suggestion for single-item tuple ([#11095](https://togithub.com/astral-sh/ruff/pull/11095)) - \[`ruff`] Respect per-file-ignores for `RUF100` with no other diagnostics ([#11058](https://togithub.com/astral-sh/ruff/pull/11058)) - \[`ruff`] Fix async comprehension false positive (`RUF029`) ([#11070](https://togithub.com/astral-sh/ruff/pull/11070)) ##### Documentation - \[`flake8-bugbear`] Document explicitly disabling strict zip (`B905`) ([#11040](https://togithub.com/astral-sh/ruff/pull/11040)) - \[`flake8-type-checking`] Mention `lint.typing-modules` in `TCH001`, `TCH002`, and `TCH003` ([#11144](https://togithub.com/astral-sh/ruff/pull/11144)) - \[`isort`] Improve documentation around custom `isort` sections ([#11050](https://togithub.com/astral-sh/ruff/pull/11050)) - \[`pylint`] Fix documentation oversight for `invalid-X-returns` ([#11094](https://togithub.com/astral-sh/ruff/pull/11094)) ##### Performance - Use `matchit` to resolve per-file settings ([#11111](https://togithub.com/astral-sh/ruff/pull/11111)) ### [`v0.4.1`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#041) [Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.4.0...v0.4.1) ##### Preview features - \[`pylint`] Implement `invalid-hash-returned` (`PLE0309`) ([#10961](https://togithub.com/astral-sh/ruff/pull/10961)) - \[`pylint`] Implement `invalid-index-returned` (`PLE0305`) ([#10962](https://togithub.com/astral-sh/ruff/pull/10962)) ##### Bug fixes - \[`pylint`] Allow `NoReturn`-like functions for `__str__`, `__len__`, etc. (`PLE0307`) ([#11017](https://togithub.com/astral-sh/ruff/pull/11017)) - Parser: Use empty range when there's "gap" in token source ([#11032](https://togithub.com/astral-sh/ruff/pull/11032)) - \[`ruff`] Ignore stub functions in `unused-async` (`RUF029`) ([#11026](https://togithub.com/astral-sh/ruff/pull/11026)) - Parser: Expect indented case block instead of match stmt ([#11033](https://togithub.com/astral-sh/ruff/pull/11033)) ### [`v0.4.0`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#040) [Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.3.7...v0.4.0) ##### A new, hand-written parser Ruff's new parser is **>2x faster**, which translates to a **20-40% speedup** for all linting and formatting invocations. There's a lot to say about this exciting change, so check out the [blog post](https://astral.sh/blog/ruff-v0.4.0) for more details! See [#10036](https://togithub.com/astral-sh/ruff/pull/10036) for implementation details. ##### A new language server in Rust With this release, we also want to highlight our new language server. `ruff server` is a Rust-powered language server that comes built-in with Ruff. It can be used with any editor that supports the [Language Server Protocol](https://microsoft.github.io/language-server-protocol/) (LSP). It uses a multi-threaded, lock-free architecture inspired by `rust-analyzer` and it will open the door for a lot of exciting features. It’s also faster than our previous [Python-based language server](https://togithub.com/astral-sh/ruff-lsp) \-- but you probably guessed that already. `ruff server` is only in alpha, but it has a lot of features that you can try out today: - Lints Python files automatically and shows quick-fixes when available - Formats Python files, with support for range formatting - Comes with commands for quickly performing actions: `ruff.applyAutofix`, `ruff.applyFormat`, and `ruff.applyOrganizeImports` - Supports `source.fixAll` and `source.organizeImports` source actions - Automatically reloads your project configuration when you change it To setup `ruff server` with your editor, refer to the [README.md](https://togithub.com/astral-sh/ruff/blob/main/crates/ruff_server/README.md). ##### Preview features - \[`pycodestyle`] Do not trigger `E3` rules on `def`s following a function/method with a dummy body ([#10704](https://togithub.com/astral-sh/ruff/pull/10704)) - \[`pylint`] Implement `invalid-bytes-returned` (`E0308`) ([#10959](https://togithub.com/astral-sh/ruff/pull/10959)) - \[`pylint`] Implement `invalid-length-returned` (`E0303`) ([#10963](https://togithub.com/astral-sh/ruff/pull/10963)) - \[`pylint`] Implement `self-cls-assignment` (`W0642`) ([#9267](https://togithub.com/astral-sh/ruff/pull/9267)) - \[`pylint`] Omit stubs from `invalid-bool` and `invalid-str-return-type` ([#11008](https://togithub.com/astral-sh/ruff/pull/11008)) - \[`ruff`] New rule `unused-async` (`RUF029`) to detect unneeded `async` keywords on functions ([#9966](https://togithub.com/astral-sh/ruff/pull/9966)) ##### Rule changes - \[`flake8-bandit`] Allow `urllib.request.urlopen` calls with static `Request` argument (`S310`) ([#10964](https://togithub.com/astral-sh/ruff/pull/10964)) - \[`flake8-bugbear`] Treat `raise NotImplemented`-only bodies as stub functions (`B006`) ([#10990](https://togithub.com/astral-sh/ruff/pull/10990)) - \[`flake8-slots`] Respect same-file `Enum` subclasses (`SLOT000`) ([#11006](https://togithub.com/astral-sh/ruff/pull/11006)) - \[`pylint`] Support inverted comparisons (`PLR1730`) ([#10920](https://togithub.com/astral-sh/ruff/pull/10920)) ##### Linter - Improve handling of builtin symbols in linter rules ([#10919](https://togithub.com/astral-sh/ruff/pull/10919)) - Improve display of rules in `--show-settings` ([#11003](https://togithub.com/astral-sh/ruff/pull/11003)) - Improve inference capabilities of the `BuiltinTypeChecker` ([#10976](https://togithub.com/astral-sh/ruff/pull/10976)) - Resolve classes and functions relative to script name ([#10965](https://togithub.com/astral-sh/ruff/pull/10965)) - Improve performance of `RuleTable::any_enabled` ([#10971](https://togithub.com/astral-sh/ruff/pull/10971)) ##### Server *This section is devoted to updates for our new language server, written in Rust.* - Enable ruff-specific source actions ([#10916](https://togithub.com/astral-sh/ruff/pull/10916)) - Refreshes diagnostics for open files when file configuration is changed ([#10988](https://togithub.com/astral-sh/ruff/pull/10988)) - Important errors are now shown as popups ([#10951](https://togithub.com/astral-sh/ruff/pull/10951)) - Introduce settings for directly configuring the linter and formatter ([#10984](https://togithub.com/astral-sh/ruff/pull/10984)) - Resolve configuration for each document individually ([#10950](https://togithub.com/astral-sh/ruff/pull/10950)) - Write a setup guide for Neovim ([#10987](https://togithub.com/astral-sh/ruff/pull/10987)) ##### Configuration - Add `RUFF_OUTPUT_FILE` environment variable support ([#10992](https://togithub.com/astral-sh/ruff/pull/10992)) ##### Bug fixes - Avoid `non-augmented-assignment` for reversed, non-commutative operators (`PLR6104`) ([#10909](https://togithub.com/astral-sh/ruff/pull/10909)) - Limit commutative non-augmented-assignments to primitive data types (`PLR6104`) ([#10912](https://togithub.com/astral-sh/ruff/pull/10912)) - Respect `per-file-ignores` for `RUF100` on blanket `# noqa` ([#10908](https://togithub.com/astral-sh/ruff/pull/10908)) - Consider `if` expression for parenthesized with items parsing ([#11010](https://togithub.com/astral-sh/ruff/pull/11010)) - Consider binary expr for parenthesized with items parsing ([#11012](https://togithub.com/astral-sh/ruff/pull/11012)) - Reset `FOR_TARGET` context for all kinds of parentheses ([#11009](https://togithub.com/astral-sh/ruff/pull/11009)) ### [`v0.3.7`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#037) [Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.3.6...v0.3.7) ##### Preview features - \[`flake8-bugbear`] Implement `loop-iterator-mutation` (`B909`) ([#9578](https://togithub.com/astral-sh/ruff/pull/9578)) - \[`pylint`] Implement rule to prefer augmented assignment (`PLR6104`) ([#9932](https://togithub.com/astral-sh/ruff/pull/9932)) ##### Bug fixes - Avoid TOCTOU errors in cache initialization ([#10884](https://togithub.com/astral-sh/ruff/pull/10884)) - \[`pylint`] Recode `nan-comparison` rule to `W0177` ([#10894](https://togithub.com/astral-sh/ruff/pull/10894)) - \[`pylint`] Reverse min-max logic in `if-stmt-min-max` ([#10890](https://togithub.com/astral-sh/ruff/pull/10890)) ### [`v0.3.6`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#036) [Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.3.5...v0.3.6) ##### Preview features - \[`pylint`] Implement `bad-staticmethod-argument` (`PLW0211`) ([#10781](https://togithub.com/astral-sh/ruff/pull/10781)) - \[`pylint`] Implement `if-stmt-min-max` (`PLR1730`, `PLR1731`) ([#10002](https://togithub.com/astral-sh/ruff/pull/10002)) - \[`pyupgrade`] Replace `str,Enum` multiple inheritance with `StrEnum` `UP042` ([#10713](https://togithub.com/astral-sh/ruff/pull/10713)) - \[`refurb`] Implement `if-expr-instead-of-or-operator` (`FURB110`) ([#10687](https://togithub.com/astral-sh/ruff/pull/10687)) - \[`refurb`] Implement `int-on-sliced-str` (`FURB166`) ([#10650](https://togithub.com/astral-sh/ruff/pull/10650)) - \[`refurb`] Implement `write-whole-file` (`FURB103`) ([#10802](https://togithub.com/astral-sh/ruff/pull/10802)) - \[`refurb`] Support `itemgetter` in `reimplemented-operator` (`FURB118`) ([#10526](https://togithub.com/astral-sh/ruff/pull/10526)) - \[`flake8_comprehensions`] Add `sum`/`min`/`max` to unnecessary comprehension check (`C419`) ([#10759](https://togithub.com/astral-sh/ruff/pull/10759)) ##### Rule changes - \[`pydocstyle`] Require capitalizing docstrings where the first sentence is a single word (`D403`) ([#10776](https://togithub.com/astral-sh/ruff/pull/10776)) - \[`pycodestyle`] Ignore annotated lambdas in class scopes (`E731`) ([#10720](https://togithub.com/astral-sh/ruff/pull/10720)) - \[`flake8-pyi`] Various improvements to PYI034 ([#10807](https://togithub.com/astral-sh/ruff/pull/10807)) - \[`flake8-slots`] Flag subclasses of call-based `typing.NamedTuple`s as well as subclasses of `collections.namedtuple()` (`SLOT002`) ([#10808](https://togithub.com/astral-sh/ruff/pull/10808)) - \[`pyflakes`] Allow forward references in class bases in stub files (`F821`) ([#10779](https://togithub.com/astral-sh/ruff/pull/10779)) - \[`pygrep-hooks`] Improve `blanket-noqa` error message (`PGH004`) ([#10851](https://togithub.com/astral-sh/ruff/pull/10851)) ##### CLI - Support `FORCE_COLOR` env var ([#10839](https://togithub.com/astral-sh/ruff/pull/10839)) ##### Configuration - Support negated patterns in `[extend-]per-file-ignores` ([#10852](https://togithub.com/astral-sh/ruff/pull/10852)) ##### Bug fixes - \[`flake8-import-conventions`] Accept non-aliased (but correct) import in `unconventional-import-alias` (`ICN001`) ([#10729](https://togithub.com/astral-sh/ruff/pull/10729)) - \[`flake8-quotes`] Add semantic model flag when inside f-string replacement field ([#10766](https://togithub.com/astral-sh/ruff/pull/10766)) - \[`pep8-naming`] Recursively resolve `TypeDicts` for N815 violations ([#10719](https://togithub.com/astral-sh/ruff/pull/10719)) - \[`flake8-quotes`] Respect `Q00*` ignores in `flake8-quotes` rules ([#10728](https://togithub.com/astral-sh/ruff/pull/10728)) - \[`flake8-simplify`] Show negated condition in `needless-bool` diagnostics (`SIM103`) ([#10854](https://togithub.com/astral-sh/ruff/pull/10854)) - \[`ruff`] Use within-scope shadowed bindings in `asyncio-dangling-task` (`RUF006`) ([#10793](https://togithub.com/astral-sh/ruff/pull/10793)) - \[`flake8-pytest-style`] Fix single-tuple conversion in `pytest-parametrize-values-wrong-type` (`PT007`) ([#10862](https://togithub.com/astral-sh/ruff/pull/10862)) - \[`flake8-return`] Ignore assignments to annotated variables in `unnecessary-assign` (`RET504`) ([#10741](https://togithub.com/astral-sh/ruff/pull/10741)) - \[`refurb`] Do not allow any keyword arguments for `read-whole-file` in `rb` mode (`FURB101`) ([#10803](https://togithub.com/astral-sh/ruff/pull/10803)) - \[`pylint`] Don't recommend decorating staticmethods with `@singledispatch` (`PLE1519`, `PLE1520`) ([#10637](https://togithub.com/astral-sh/ruff/pull/10637)) - \[`pydocstyle`] Use section name range for all section-related docstring diagnostics ([#10740](https://togithub.com/astral-sh/ruff/pull/10740)) - Respect `# noqa` directives on `__all__` openers ([#10798](https://togithub.com/astral-sh/ruff/pull/10798)) ### [`v0.3.5`](https://togithub.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#035) [Compare Source](https://togithub.com/astral-sh/ruff/compare/v0.3.4...v0.3.5) ##### Preview features - \[`pylint`] Implement `modified-iterating-set` (`E4703`) ([#10473](https://togithub.com/astral-sh/ruff/pull/10473)) - \[`refurb`] Implement `for-loop-set-mutations` (`FURB142`) ([#10583](https://togithub.com/astral-sh/ruff/pull/10583)) - \[`refurb`] Implement `unnecessary-from-float` (`FURB164`) ([#10647](https://togithub.com/astral-sh/ruff/pull/10647)) - \[`refurb`] Implement `verbose-decimal-constructor` (`FURB157`) ([#10533](https://togithub.com/astral-sh/ruff/pull/10533)) ##### Rule changes - \[`flake8-comprehensions`] Handled special case for `C401` which also matches `C416` ([#10596](https://togithub.com/astral-sh/ruff/pull/10596)) - \[`flake8-pyi`] Mark `unaliased-collections-abc-set-import` fix as "safe" for more cases in stub files (`PYI025`) ([#10547](https://togithub.com/astral-sh/ruff/pull/10547)) - \[`numpy`] Add `row_stack` to NumPy 2.0 migration rule ([#10646](https://togithub.com/astral-sh/ruff/pull/10646)) - \[`pycodestyle`] Allow cell magics before an import (`E402`) ([#10545](https://togithub.com/astral-sh/ruff/pull/10545)) - \[`pycodestyle`] Avoid blank line rules for the first logical line in cell ([#10291](https://togithub.com/astral-sh/ruff/pull/10291)) ##### Configuration - Respected nested namespace packages ([#10541](https://togithub.com/astral-sh/ruff/pull/10541)) - \[`flake8-boolean-trap`] Add setting for user defined allowed boolean trap ([#10531](https://togithub.com/astral-sh/ruff/pull/10531)) ##### Bug fixes - Correctly handle references in `__all__` definitions when renaming symbols in autofixes ([#10527](https://togithub.com/astral-sh/ruff/pull/10527)) - Track ranges of names inside `__all__` definitions ([#10525](https://togithub.com/astral-sh/ruff/pull/10525)) - \[`flake8-bugbear`] Avoid false positive for usage after `continue` (`B031`) ([#10539](https://togithub.com/astral-sh/ruff/pull/10539)) - \[`flake8-copyright`] Accept commas in default copyright pattern ([#9498](https://togithub.com/astral-sh/ruff/pull/9498)) - \[`flake8-datetimez`] Allow f-strings with `%z` for `DTZ007` ([#10651](https://togithub.com/astral-sh/ruff/pull/10651)) - \[`flake8-pytest-style`] Fix `PT014` autofix for last item in list ([#10532](https://togithub.com/astral-sh/ruff/pull/10532)) - \[`flake8-quotes`] Ignore `Q000`, `Q001` when string is inside forward ref ([#10585](https://togithub.com/astral-sh/ruff/pull/10585)) - \[`isort`] Always place non-relative imports after relative imports ([#10669](https://togithub.com/astral-sh/ruff/pull/10669)) - \[`isort`] Respect Unicode characters in import sorting ([#10529](https://togithub.com/astral-sh/ruff/pull/10529)) - \[`pyflakes`] Fix F821 false negatives when `from __future__ import annotations` is active (attempt 2) ([#10524](https://togithub.com/astral-sh/ruff/pull/10524)) - \[`pyflakes`] Make `unnecessary-lambda` an always-unsafe fix ([#10668](https://togithub.com/astral-sh/ruff/pull/10668)) - \[`pylint`] Fixed false-positive on the rule `PLW1641` (`eq-without-hash`) ([#10566](https://togithub.com/astral-sh/ruff/pull/10566)) - \[`ruff`] Fix panic in unused `# noqa` removal with multi-byte space (`RUF100`) ([#10682](https://togithub.com/astral-sh/ruff/pull/10682)) ##### Documentation - Add PR title format to `CONTRIBUTING.md` ([#10665](https://togithub.com/astral-sh/ruff/pull/10665)) - Fix list markup to include blank lines required ([#10591](https://togithub.com/astral-sh/ruff/pull/10591)) - Put `flake8-logging` next to the other flake8 plugins in registry ([#10587](https://togithub.com/astral-sh/ruff/pull/10587)) - \[`flake8-bandit`] Update warning message for rule `S305` to address insecure block cipher mode use ([#10602](https://togithub.com/astral-sh/ruff/pull/10602)) - \[`flake8-bugbear`] Document use of anonymous assignment in `useless-expression` ([#10551](https://togithub.com/astral-sh/ruff/pull/10551)) - \[`flake8-datetimez`] Clarify error messages and docs for `DTZ` rules ([#10621](https://togithub.com/astral-sh/ruff/pull/10621)) - \[`pycodestyle`] Use same before vs. after numbers for `space-around-operator` ([#10640](https://togithub.com/astral-sh/ruff/pull/10640)) - \[`ruff`] Change `quadratic-list-summation` docs to use `iadd` consistently ([#10666](https://togithub.com/astral-sh/ruff/pull/10666))Configuration
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