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add overload to tuple.__new__ to better express an empty tuple #7454

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Jul 6, 2022
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7 changes: 6 additions & 1 deletion stdlib/builtins.pyi
Original file line number Diff line number Diff line change
Expand Up @@ -816,7 +816,12 @@ class slice:
def indices(self, __len: SupportsIndex) -> tuple[int, int, int]: ...

class tuple(Sequence[_T_co], Generic[_T_co]):
def __new__(cls: type[Self], __iterable: Iterable[_T_co] = ...) -> Self: ...
# overloads are ordered this way to pass `isinstance` checks
# see: https://github.com/python/typeshed/pull/7454#issuecomment-1061490888
@overload
def __new__(cls: type[Self], __iterable: Iterable[_T_co]) -> Self: ...
@overload
def __new__(cls) -> tuple[()]: ...
def __len__(self) -> int: ...
def __contains__(self, __x: object) -> bool: ...
@overload
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