Add __rsub__ method to AbstractSet

Author: Gatsik

stdlib/@tests/stubtest_allowlists/common.txt

@@ -51,7 +51,6 @@ _collections_abc.Mapping.__reversed__  # set to None at runtime for a better err
 # Adding these reflected dunders to `typing.AbstractSet` causes a large number of false-positives. See #7414.
 _collections_abc.Set.__rand__
 _collections_abc.Set.__ror__
-_collections_abc.Set.__rsub__
 _collections_abc.Set.__rxor__
 
 # Undocumented implementation details of a deprecated class

stdlib/@tests/stubtest_allowlists/py39.txt

@@ -140,7 +140,6 @@ collections.Mapping.__reversed__  # Set to None at runtime for a better error me
 # Adding these reflected dunders to `typing.AbstractSet` causes a large number of false-positives. See #7414.
 collections.Set.__rand__
 collections.Set.__ror__
-collections.Set.__rsub__
 collections.Set.__rxor__
 
 ssl.RAND_egd  # Depends on the existence and flags of SSL

stdlib/builtins.pyi

@@ -1267,6 +1267,7 @@ class set(MutableSet[_T]):
     def __ior__(self, value: AbstractSet[_T], /) -> Self: ...  # type: ignore[override,misc]
     def __sub__(self, value: AbstractSet[_T | None], /) -> set[_T]: ...  # type: ignore[override,misc]
     def __isub__(self, value: AbstractSet[object], /) -> Self: ...  # type: ignore[override,misc]
+    def __rsub__(self, value: AbstractSet[_S], /) -> set[_S]: ...  # type: ignore[override,misc]
     def __xor__(self, value: AbstractSet[_S], /) -> set[_T | _S]: ...  # type: ignore[override,misc]
     def __ixor__(self, value: AbstractSet[_T], /) -> Self: ...  # type: ignore[override,misc]
     def __le__(self, value: AbstractSet[object], /) -> bool: ...

stdlib/multiprocessing/managers.pyi

@@ -162,7 +162,7 @@ if sys.version_info >= (3, 14):
         def __eq__(self, value: object, /) -> bool: ...
         def __rand__(self, value: AbstractSet[object], /) -> set[_T]: ...
         def __ror__(self, value: AbstractSet[_S], /) -> set[_T | _S]: ...  # type: ignore[misc]
-        def __rsub__(self, value: AbstractSet[_T], /) -> set[_T]: ...
+        def __rsub__(self, value: AbstractSet[_T], /) -> set[_T]: ...  # type: ignore[override,misc]
         def __rxor__(self, value: AbstractSet[_S], /) -> set[_T | _S]: ...  # type: ignore[misc]
         def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 

stdlib/typing.pyi

@@ -707,6 +707,7 @@ class AbstractSet(Collection[_T_co]):
     def __and__(self, other: Iterable[Any]) -> AbstractSet[_T_co]: ...
     def __or__(self, other: Iterable[_T]) -> AbstractSet[_T_co | _T]: ...
     def __sub__(self, other: Iterable[Any]) -> AbstractSet[_T_co]: ...
+    def __rsub__(self, other: Iterable[_T]) -> AbstractSet[_T]: ...
     def __xor__(self, other: Iterable[_T]) -> AbstractSet[_T_co | _T]: ...
     def __eq__(self, other: object) -> bool: ...
     def isdisjoint(self, other: Iterable[Any]) -> bool: ...