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Overload bool.__new__ for Literal bools #10465

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Overload bool.__new__ for Literal bools #10465

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6a2bd1f
Make bool.__new__ more specific
Gobot1234 Jul 15, 2023
d62cae4
Add no-arg literal cases
Gobot1234 Jul 19, 2023
d2541c9
Remove changes to str, int and bytes
Gobot1234 Jul 19, 2023
3b645bf
Simplify overloads
Gobot1234 Jul 19, 2023
1bebecf
Merge branch 'main' into patch-4
JelleZijlstra Feb 17, 2024
26c206a
Merge branch 'main' into patch-4
Gobot1234 Oct 3, 2025
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13 changes: 12 additions & 1 deletion stdlib/builtins.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -950,9 +950,20 @@ class memoryview(Sequence[_I]):
if sys.version_info >= (3, 14):
def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...

class _Truthy(Protocol):
def __bool__(self) -> Literal[True]: ...

class _Falsy(Protocol):
def __bool__(self) -> Literal[False]: ...

@final
class bool(int):
def __new__(cls, o: object = False, /) -> Self: ...
@overload
def __new__(cls, o: _Truthy, /) -> Literal[True]: ...
@overload
def __new__(cls, o: _Falsy = False, /) -> Literal[False]: ...
@overload
def __new__(cls, o: object, /) -> Self: ...
# The following overloads could be represented more elegantly with a TypeVar("_B", bool, int),
# however mypy has a bug regarding TypeVar constraints (https://github.com/python/mypy/issues/11880).
@overload
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