class Pet(Enum):
CAT = 1 # Member attribute
DOG = 2 # Member attribute
WOLF: int = 3 # New error: Enum members must be left unannotated
species: str # Considered a non-member attribute
In particular, the specification change can result in issues in type stubs (.pyi files), since
historically it was common to leave the value absent:
# In a type stub (.pyi file)
class Pet(Enum):
# Change in semantics: previously considered members, now non-member attributes
CAT: int
DOG: int
# Mypy will now issue a warning if it detects this situation in type stubs:
# > Detected enum "Pet" in a type stub with zero members.
# > There is a chance this is due to a recent change in the semantics of enum membership.
# > If so, use `member = value` to mark an enum member, instead of `member: type`
class Pet(Enum):
# As per the specification, you should now do one of the following:
DOG = 1 # Member attribute with value 1 and known type
WOLF = cast(int, ...) # Member attribute with unknown value but known type
LION = ... # Member attribute with unknown value and unknown type
Contributed by Terence Honles in PR 17207 and
Shantanu Jain in PR 18068.
Mypy 1.13
We’ve just uploaded mypy 1.13 to the Python Package Index (PyPI).
Mypy is a static type checker for Python. You can install it as follows:
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Bumps the features-and-bugs group with 5 updates in the / directory:
1.12.11.13.00.7.00.7.23.3.23.3.33.0.13.0.220.27.020.27.1Updates
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eb31034Bump version to 1.13.02eeb588Update changelog for 1.12.1 (#17999)bc0386bChangelog for 1.13 (#18000)5c4d2dbAdd faster-cache extra, test in CI (#17978)854ad18Make is_sub_path faster (#17962)50aa4caSpeed up stubs suggestions (#17965)7c27808Use orjson instead of json, when available (#17955)2cd2406Use fast path in modulefinder more often (#17950)e20aaeeLet mypyc optimise os.path.join (#17949)159974cUse sha1 for hashing (#17953)Updates
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11c3b52generate using cargo-dista388e49Temporary comment out certain release steps099f077[docs] Add rule short code to mkdocs tags (#14040)8574751Give non-existent files a durability of at least Medium (#14034)ddae741Switch touv publish(#14042)5053d2cDoc: markdown link fix (#14041)ef72fd7Bump version to 0.7.2 (#14039)658a51eFix typo for static method decorator (#14038)7c2da4fSync vendored typeshed stubs (#14030)48fa839Use named function in incremental red knot benchmark (#14033)Updates
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f5c7295Version 3.3.3eb2d7f2Fix crash when init is assigned to0e9bb9bDocument package and modules under a "submodules" heading53c2abcAttach release note to correct issue489abb1Add missing release note9dd7851Fix adding incorrect attributes from initbedadd4Add newline before a property's doc stringfac7695Remove old workaround for towncrier2b31d39Switch to flitfb73609PEP 621: Migrate from setup.cfg to pyproject.tomlUpdates
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28ace20release version 3.0.26b51fd8build requires at least setuptools 70.1 (#478)99dda9fbuild requires at least setuptools 70.13d8fd8cfix version1933c4bfix versione85aff4relax speedups str check (#477)8cb1691relax speedups str check4dafb7cstart version 3.1.09c44ecfupdate docs build275c769Merge branch '2.1.x' into 3.0.xUpdates
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cb20fdarelease 20.27.18425467Upgrade to pip 24.3 (#2790)17ee28fMerge pull request #2787 from pypa/pre-commit-ci-update-configfd2b921[pre-commit.ci] pre-commit autoupdate72f4019Merge pull request #2785 from pypa/release-20.27.0Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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