astral-sh/ruff v0.2.0 on GitHub

Check out the blog post for a migration guide and overview of the changes!

Changes

Breaking changes

The NURSERY selector cannot be used anymore
Legacy selection of nursery rules by exact codes is no longer allowed without preview enabled

See also, the "Remapped rules" section which may result in disabled rules.

Deprecations

The following rules are now deprecated:

missing-type-self (ANN101)
missing-type-cls (ANN102)

The following command line options are now deprecated:

--show-source; use --output-format full instead
--no-show-source; use --output-format concise instead
--output-format text; use full or concise instead

The following settings have moved and the previous name is deprecated:

ruff.allowed-confusables → ruff.lint.allowed-confusables
ruff.dummy-variable-rgx → ruff.lint.dummy-variable-rgx
ruff.explicit-preview-rules → ruff.lint.explicit-preview-rules
ruff.extend-fixable → ruff.lint.extend-fixable
ruff.extend-ignore → ruff.lint.extend-ignore
ruff.extend-per-file-ignores → ruff.lint.extend-per-file-ignores
ruff.extend-safe-fixes → ruff.lint.extend-safe-fixes
ruff.extend-select → ruff.lint.extend-select
ruff.extend-unfixable → ruff.lint.extend-unfixable
ruff.extend-unsafe-fixes → ruff.lint.extend-unsafe-fixes
ruff.external → ruff.lint.external
ruff.fixable → ruff.lint.fixable
ruff.flake8-annotations → ruff.lint.flake8-annotations
ruff.flake8-bandit → ruff.lint.flake8-bandit
ruff.flake8-bugbear → ruff.lint.flake8-bugbear
ruff.flake8-builtins → ruff.lint.flake8-builtins
ruff.flake8-comprehensions → ruff.lint.flake8-comprehensions
ruff.flake8-copyright → ruff.lint.flake8-copyright
ruff.flake8-errmsg → ruff.lint.flake8-errmsg
ruff.flake8-gettext → ruff.lint.flake8-gettext
ruff.flake8-implicit-str-concat → ruff.lint.flake8-implicit-str-concat
ruff.flake8-import-conventions → ruff.lint.flake8-import-conventions
ruff.flake8-pytest-style → ruff.lint.flake8-pytest-style
ruff.flake8-quotes → ruff.lint.flake8-quotes
ruff.flake8-self → ruff.lint.flake8-self
ruff.flake8-tidy-imports → ruff.lint.flake8-tidy-imports
ruff.flake8-type-checking → ruff.lint.flake8-type-checking
ruff.flake8-unused-arguments → ruff.lint.flake8-unused-arguments
ruff.ignore → ruff.lint.ignore
ruff.ignore-init-module-imports → ruff.lint.ignore-init-module-imports
ruff.isort → ruff.lint.isort
ruff.logger-objects → ruff.lint.logger-objects
ruff.mccabe → ruff.lint.mccabe
ruff.pep8-naming → ruff.lint.pep8-naming
ruff.per-file-ignores → ruff.lint.per-file-ignores
ruff.pycodestyle → ruff.lint.pycodestyle
ruff.pydocstyle → ruff.lint.pydocstyle
ruff.pyflakes → ruff.lint.pyflakes
ruff.pylint → ruff.lint.pylint
ruff.pyupgrade → ruff.lint.pyupgrade
ruff.select → ruff.lint.select
ruff.task-tags → ruff.lint.task-tags
ruff.typing-modules → ruff.lint.typing-modules
ruff.unfixable → ruff.lint.unfixable

Remapped rules

The following rules have been remapped to new codes:

raise-without-from-inside-except: TRY200 to B904
suspicious-eval-usage: PGH001 to S307
logging-warn: PGH002 to G010
static-key-dict-comprehension: RUF011 to B035
runtime-string-union: TCH006 to TCH010

Stabilizations

The following rules have been stabilized and are no longer in preview:

trio-timeout-without-await (TRIO100)
trio-sync-call (TRIO105)
trio-async-function-with-timeout (TRIO109)
trio-unneeded-sleep (TRIO110)
trio-zero-sleep-call (TRIO115)
unnecessary-escaped-quote (Q004)
enumerate-for-loop (SIM113)
zip-dict-keys-and-values (SIM911)
timeout-error-alias (UP041)
flask-debug-true (S201)
tarfile-unsafe-members (S202)
ssl-insecure-version (S502)
ssl-with-bad-defaults (S503)
ssl-with-no-version (S504)
weak-cryptographic-key (S505)
ssh-no-host-key-verification (S507)
django-raw-sql (S611)
mako-templates (S702)
generator-return-from-iter-method (PYI058)
runtime-string-union (TCH006)
numpy2-deprecation (NPY201)
quadratic-list-summation (RUF017)
assignment-in-assert (RUF018)
unnecessary-key-check (RUF019)
never-union (RUF020)
direct-logger-instantiation (LOG001)
invalid-get-logger-argument (LOG002)
exception-without-exc-info (LOG007)
undocumented-warn (LOG009)

Fixes for the following rules have been stabilized and are now available without preview:

Fixes for the following rules have been promoted from unsafe to safe:

unaliased-collections-abc-set-import (PYI025)

The following behaviors have been stabilized:

module-import-not-at-top-of-file (E402) allows sys.path modifications between imports
reimplemented-container-builtin (PIE807) includes lambdas that can be replaced with dict
unnecessary-placeholder (PIE790) applies to unnecessary ellipses (...)
if-else-block-instead-of-dict-get (SIM401) applies to if-else expressions

Preview features

[refurb] Implement metaclass_abcmeta (FURB180) (#9658)
Implement blank_line_after_nested_stub_class preview style (#9155)
The preview rule and-or-ternary (PLR1706) was removed

Bug fixes

[flake8-async] Take pathlib.Path into account when analyzing async functions (#9703)
[flake8-return] - fix indentation syntax error (RET505) (#9705)
Detect multi-statement lines in else removal (#9748)
RUF022, RUF023: never add two trailing commas to the end of a sequence (#9698)
RUF023: Don't sort __match_args__, only __slots__ (#9724)
[flake8-simplify] - Fix syntax error in autofix (SIM114) (#9704)
[pylint] Show verbatim constant in magic-value-comparison (PLR2004) (#9694)
Removing trailing whitespace inside multiline strings is unsafe (#9744)
Support IfExp with dual string arms in invalid-envvar-default (#9734)
[pylint] Add __mro_entries__ to known dunder methods (PLW3201) (#9706)

Documentation

Removed rules are now retained in the documentation (#9691)
Deprecated rules are now indicated in the documentation (#9689)