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[_typeshed] Add SupportsGet #16033

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[_typeshed] Add SupportsGet #16033

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b77fa8f
[_typeshed] Add `SupportsGet`
srittau Jul 19, 2026
78f90cf
Reshuffle the type ignores
srittau Jul 19, 2026
ea1eac8
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Jul 19, 2026
254f9ab
mypy is picky today
srittau Jul 19, 2026
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12 changes: 12 additions & 0 deletions stdlib/_typeshed/__init__.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -160,6 +160,18 @@ class SupportsTrunc(Protocol):

# Mapping-like protocols

# The second and third overload could technically be combined, but splitting
# them works better with some type checkers.
class SupportsGet(Protocol[_KT_contra, _VT_co]): # type: ignore[misc] # Covariant type as parameter
@overload
def get(self, key: _KT_contra, /) -> _VT_co | None: ...
@overload
def get(
self, key: _KT_contra, default: _VT_co, / # type: ignore[misc] # pyright: ignore[reportGeneralTypeIssues] # Covariant type as parameter
) -> _VT_co: ...
@overload
def get(self, key: _KT_contra, default: _T, /) -> _VT_co | _T: ...

# stable
class SupportsItems(Protocol[_KT_co, _VT_co]):
def items(self) -> AbstractSet[tuple[_KT_co, _VT_co]]: ...
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