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Yet another attempt to fix list.__add__ #8293

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Merged
merged 12 commits into from
Jul 15, 2022
Merged
6 changes: 5 additions & 1 deletion stdlib/builtins.pyi
Original file line number Diff line number Diff line change
Expand Up @@ -986,8 +986,12 @@ class list(MutableSequence[_T], Generic[_T]):
@overload
def __setitem__(self, __s: slice, __o: Iterable[_T]) -> None: ...
def __delitem__(self, __i: SupportsIndex | slice) -> None: ...
# Overloading looks unnecessary, but is needed to work around complex mypy problems
@overload
def __add__(self, __x: list[_T]) -> list[_T]: ...
def __iadd__(self: Self, __x: Iterable[_T]) -> Self: ...
@overload
def __add__(self, __x: list[_S]) -> list[_S | _T]: ...
def __iadd__(self: Self, __x: Iterable[_T]) -> Self: ... # type: ignore
def __mul__(self, __n: SupportsIndex) -> list[_T]: ...
def __rmul__(self, __n: SupportsIndex) -> list[_T]: ...
def __imul__(self: Self, __n: SupportsIndex) -> Self: ...
Expand Down