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[typing] Add missing _from_iterable classmethod to Set ABCs #15331

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[typing] Add missing _from_iterable classmethod to Set ABCs #15331

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[typing] Add missing `_from_iterable` classmethod to `Set` ABCs
emmanuel-ferdman Jan 27, 2026
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Merge branch 'main' into main
emmanuel-ferdman Jan 29, 2026
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6 changes: 6 additions & 0 deletions stdlib/typing.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -704,6 +704,8 @@ class AbstractSet(Collection[_T_co]):
def __contains__(self, x: object) -> bool: ...
def _hash(self) -> int: ...
# Mixin methods
@classmethod
def _from_iterable(cls, it: Iterable[Any]) -> AbstractSet[Any]: ...
def __le__(self, other: AbstractSet[Any]) -> bool: ...
def __lt__(self, other: AbstractSet[Any]) -> bool: ...
def __gt__(self, other: AbstractSet[Any]) -> bool: ...
Expand Down Expand Up @@ -736,6 +738,8 @@ class MappingView(Sized):

class ItemsView(MappingView, AbstractSet[tuple[_KT_co, _VT_co]], Generic[_KT_co, _VT_co]):
def __init__(self, mapping: SupportsGetItemViewable[_KT_co, _VT_co]) -> None: ... # undocumented
@classmethod
def _from_iterable(cls, it: Iterable[Any]) -> set[Any]: ...
def __and__(self, other: Iterable[Any]) -> set[tuple[_KT_co, _VT_co]]: ...
def __rand__(self, other: Iterable[_T]) -> set[_T]: ...
def __contains__(self, item: tuple[object, object]) -> bool: ... # type: ignore[override]
Expand All @@ -749,6 +753,8 @@ class ItemsView(MappingView, AbstractSet[tuple[_KT_co, _VT_co]], Generic[_KT_co,

class KeysView(MappingView, AbstractSet[_KT_co]):
def __init__(self, mapping: Viewable[_KT_co]) -> None: ... # undocumented
@classmethod
def _from_iterable(cls, it: Iterable[Any]) -> set[Any]: ...
def __and__(self, other: Iterable[Any]) -> set[_KT_co]: ...
def __rand__(self, other: Iterable[_T]) -> set[_T]: ...
def __contains__(self, key: object) -> bool: ...
Expand Down