v0.8.1

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Preview features

• Formatter: Avoid invalid syntax for format-spec with quotes for all Python versions (#​14625)
• Formatter: Consider quotes inside format-specs when choosing the quotes for an f-string (#​14493)
• Formatter: Do not consider f-strings with escaped newlines as multiline (#​14624)
• Formatter: Fix f-string formatting in assignment statement (#​14454)
• Formatter: Fix unnecessary space around power operator (**) in overlong f-string expressions (#​14489)
• [airflow] Avoid implicit schedule argument to DAG and @dag (AIR301) (#​14581)
• [flake8-builtins] Exempt private built-in modules (A005) (#​14505)
• [flake8-pytest-style] Fix pytest.mark.parametrize rules to check calls instead of decorators (#​14515)
• [flake8-type-checking] Implement runtime-cast-value (TC006) (#​14511)
• [flake8-type-checking] Implement unquoted-type-alias (TC007) and quoted-type-alias (TC008) (#​12927)
• [flake8-use-pathlib] Recommend Path.iterdir() over os.listdir() (PTH208) (#​14509)
• [pylint] Extend invalid-envvar-default to detect os.environ.get (PLW1508) (#​14512)
• [pylint] Implement len-test (PLC1802) (#​14309)
• [refurb] Fix bug where methods defined using lambdas were flagged by FURB118 (#​14639)
• [ruff] Auto-add r prefix when string has no backslashes for unraw-re-pattern (RUF039) (#​14536)
• [ruff] Implement invalid-assert-message-literal-argument (RUF040) (#​14488)
• [ruff] Implement unnecessary-nested-literal (RUF041) (#​14323)
• [ruff] Implement unnecessary-regular-expression (RUF055) (#​14659)

Rule changes

• Ignore more rules for stub files (#​14541)
• [pep8-naming] Eliminate false positives for single-letter names (N811, N814) (#​14584)
• [pyflakes] Avoid false positives in @no_type_check contexts (F821, F722) (#​14615)
• [ruff] Detect redirected-noqa in file-level comments (RUF101) (#​14635)
• [ruff] Mark fixes for unsorted-dunder-all and unsorted-dunder-slots as unsafe when there are complex comments in the sequence (RUF022, RUF023) (#​14560)

Bug fixes

• Avoid fixing code to None | None for redundant-none-literal (PYI061) and never-union (RUF020) (#​14583, #​14589)
• [flake8-bugbear] Fix mutable-contextvar-default to resolve annotated function calls properly (B039) (#​14532)
• [flake8-pyi, ruff] Fix traversal of nested literals and unions (PYI016, PYI051, PYI055, PYI062, RUF041) (#​14641)
• [flake8-pyi] Avoid rewriting invalid type expressions in unnecessary-type-union (PYI055) (#​14660)
• [flake8-type-checking] Avoid syntax errors and type checking problem for quoted annotations autofix (TC003, TC006) (#​14634)
• [pylint] Do not wrap function calls in parentheses in the fix for unnecessary-dunder-call (PLC2801) (#​14601)
• [ruff] Handle attrs's auto_attribs correctly (RUF009) (#​14520)