Mark pos-only __class_getitem__ args (#11970)

stdlib/_ctypes.pyi

@@ -201,7 +201,7 @@ class Array(_CData, Generic[_CT]):
     # Sized and _CData prevents using _CDataMeta.
     def __len__(self) -> int: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 def addressof(obj: _CData) -> int: ...
 def alignment(obj_or_type: _CData | type[_CData]) -> int: ...

stdlib/_weakref.pyi

@@ -27,7 +27,7 @@ class ReferenceType(Generic[_T]):
     def __eq__(self, value: object, /) -> bool: ...
     def __hash__(self) -> int: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 ref = ReferenceType
 

stdlib/_weakrefset.pyi

@@ -48,4 +48,4 @@ class WeakSet(MutableSet[_T]):
     def __or__(self, other: Iterable[_S]) -> WeakSet[_S | _T]: ...
     def isdisjoint(self, other: Iterable[_T]) -> bool: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...

stdlib/array.pyi

@@ -87,6 +87,6 @@ class array(MutableSequence[_T]):
     def __buffer__(self, flags: int, /) -> memoryview: ...
     def __release_buffer__(self, buffer: memoryview, /) -> None: ...
     if sys.version_info >= (3, 12):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 ArrayType = array

stdlib/asyncio/futures.pyi

@@ -52,6 +52,6 @@ class Future(Awaitable[_T], Iterable[_T]):
     @property
     def _loop(self) -> AbstractEventLoop: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 def wrap_future(future: _ConcurrentFuture[_T] | Future[_T], *, loop: AbstractEventLoop | None = None) -> Future[_T]: ...

stdlib/asyncio/queues.pyi

@@ -41,7 +41,7 @@ class Queue(Generic[_T], _LoopBoundMixin):  # noqa: Y059
     async def join(self) -> None: ...
     def task_done(self) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, type: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, type: Any, /) -> GenericAlias: ...
 
 class PriorityQueue(Queue[_T]): ...
 class LifoQueue(Queue[_T]): ...

stdlib/asyncio/tasks.pyi

@@ -443,7 +443,7 @@ class Task(Future[_T_co]):  # type: ignore[type-var]  # pyright: ignore[reportIn
         @classmethod
         def all_tasks(cls, loop: AbstractEventLoop | None = None) -> set[Task[Any]]: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 def all_tasks(loop: AbstractEventLoop | None = None) -> set[Task[Any]]: ...
 

stdlib/concurrent/futures/_base.pyi

@@ -54,7 +54,7 @@ class Future(Generic[_T]):
     def exception(self, timeout: float | None = None) -> BaseException | None: ...
     def set_exception(self, exception: BaseException | None) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class Executor:
     if sys.version_info >= (3, 9):

stdlib/concurrent/futures/thread.pyi

@@ -29,7 +29,7 @@ class _WorkItem(Generic[_S]):
     def __init__(self, future: Future[_S], fn: Callable[..., _S], args: Iterable[Any], kwargs: Mapping[str, Any]) -> None: ...
     def run(self) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 def _worker(
     executor_reference: ref[Any],

stdlib/contextvars.pyi

@@ -30,7 +30,7 @@ class ContextVar(Generic[_T]):
     def set(self, value: _T, /) -> Token[_T]: ...
     def reset(self, token: Token[_T], /) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 @final
 class Token(Generic[_T]):
@@ -40,7 +40,7 @@ class Token(Generic[_T]):
     def old_value(self) -> Any: ...  # returns either _T or MISSING, but that's hard to express
     MISSING: ClassVar[object]
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 def copy_context() -> Context: ...
 

stdlib/csv.pyi

@@ -111,7 +111,7 @@ class DictReader(Iterator[dict[_T | Any, str | Any]], Generic[_T]):
     def __iter__(self) -> Self: ...
     def __next__(self) -> dict[_T | Any, str | Any]: ...
     if sys.version_info >= (3, 12):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class DictWriter(Generic[_T]):
     fieldnames: Collection[_T]
@@ -139,7 +139,7 @@ class DictWriter(Generic[_T]):
     def writerow(self, rowdict: Mapping[_T, Any]) -> Any: ...
     def writerows(self, rowdicts: Iterable[Mapping[_T, Any]]) -> None: ...
     if sys.version_info >= (3, 12):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class Sniffer:
     preferred: list[str]

stdlib/ctypes/__init__.pyi

@@ -76,7 +76,7 @@ class LibraryLoader(Generic[_DLLT]):
     def __getitem__(self, name: str) -> _DLLT: ...
     def LoadLibrary(self, name: str) -> _DLLT: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 cdll: LibraryLoader[CDLL]
 if sys.platform == "win32":

stdlib/dataclasses.pyi

@@ -143,7 +143,7 @@ class Field(Generic[_T]):
 
     def __set_name__(self, owner: Type[Any], name: str) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 # NOTE: Actual return type is 'Field[_T]', but we want to help type checkers
 # to understand the magic that happens at runtime.

stdlib/difflib.pyi

@@ -55,7 +55,7 @@ class SequenceMatcher(Generic[_T]):
     def quick_ratio(self) -> float: ...
     def real_quick_ratio(self) -> float: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 @overload
 def get_close_matches(word: AnyStr, possibilities: Iterable[AnyStr], n: int = 3, cutoff: float = 0.6) -> list[AnyStr]: ...

stdlib/filecmp.pyi

@@ -52,6 +52,6 @@ class dircmp(Generic[AnyStr]):
     def phase4(self) -> None: ...
     def phase4_closure(self) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 def clear_cache() -> None: ...

stdlib/fileinput.pyi

@@ -200,7 +200,7 @@ class FileInput(Iterator[AnyStr]):
     def isfirstline(self) -> bool: ...
     def isstdin(self) -> bool: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 if sys.version_info >= (3, 10):
     def hook_compressed(

stdlib/functools.pyi

@@ -132,7 +132,7 @@ class partial(Generic[_T]):
     def __new__(cls, func: Callable[..., _T], /, *args: Any, **kwargs: Any) -> Self: ...
     def __call__(self, /, *args: Any, **kwargs: Any) -> _T: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 # With protocols, this could change into a generic protocol that defines __get__ and returns _T
 _Descriptor: TypeAlias = Any
@@ -149,7 +149,7 @@ class partialmethod(Generic[_T]):
     @property
     def __isabstractmethod__(self) -> bool: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class _SingleDispatchCallable(Generic[_T]):
     registry: types.MappingProxyType[Any, Callable[..., _T]]
@@ -196,7 +196,7 @@ class cached_property(Generic[_T_co]):
     # __set__ is not defined at runtime, but @cached_property is designed to be settable
     def __set__(self, instance: object, value: _T_co) -> None: ...  # type: ignore[misc]  # pyright: ignore[reportGeneralTypeIssues]
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 if sys.version_info >= (3, 9):
     def cache(user_function: Callable[..., _T], /) -> _lru_cache_wrapper[_T]: ...

stdlib/graphlib.pyi

@@ -23,6 +23,6 @@ class TopologicalSorter(Generic[_T]):
     def get_ready(self) -> tuple[_T, ...]: ...
     def static_order(self) -> Iterable[_T]: ...
     if sys.version_info >= (3, 11):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class CycleError(ValueError): ...

stdlib/http/cookies.pyi

@@ -45,7 +45,7 @@ class Morsel(dict[str, Any], Generic[_T]):
     def __eq__(self, morsel: object) -> bool: ...
     def __setitem__(self, K: str, V: Any) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class BaseCookie(dict[str, Morsel[_T]], Generic[_T]):
     def __init__(self, input: _DataType | None = None) -> None: ...

stdlib/logging/__init__.pyi

@@ -470,7 +470,7 @@ class LoggerAdapter(Generic[_L]):
     @property
     def name(self) -> str: ...  # undocumented
     if sys.version_info >= (3, 11):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 def getLogger(name: str | None = None) -> Logger: ...
 def getLoggerClass() -> type[Logger]: ...
@@ -600,7 +600,7 @@ class StreamHandler(Handler, Generic[_StreamT]):
     def __init__(self: StreamHandler[_StreamT], stream: _StreamT) -> None: ...  # pyright: ignore[reportInvalidTypeVarUse]  #11780
     def setStream(self, stream: _StreamT) -> _StreamT | None: ...
     if sys.version_info >= (3, 11):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class FileHandler(StreamHandler[TextIOWrapper]):
     baseFilename: str  # undocumented

stdlib/mailbox.pyi

@@ -102,7 +102,7 @@ class Mailbox(Generic[_MessageT]):
     @abstractmethod
     def close(self) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class Maildir(Mailbox[MaildirMessage]):
     colon: str
@@ -244,7 +244,7 @@ class _ProxyFile(Generic[AnyStr]):
     @property
     def closed(self) -> bool: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class _PartialFile(_ProxyFile[AnyStr]):
     def __init__(self, f: IO[AnyStr], start: int | None = None, stop: int | None = None) -> None: ...

stdlib/multiprocessing/managers.pyi

@@ -58,7 +58,7 @@ class ValueProxy(BaseProxy, Generic[_T]):
     def set(self, value: _T) -> None: ...
     value: _T
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class DictProxy(BaseProxy, MutableMapping[_KT, _VT]):
     __builtins__: ClassVar[dict[str, Any]]

stdlib/multiprocessing/pool.pyi

@@ -21,7 +21,7 @@ class ApplyResult(Generic[_T]):
     def ready(self) -> bool: ...
     def successful(self) -> bool: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 # alias created during issue #17805
 AsyncResult = ApplyResult

stdlib/multiprocessing/queues.pyi

@@ -38,4 +38,4 @@ class SimpleQueue(Generic[_T]):
     def get(self) -> _T: ...
     def put(self, obj: _T) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...

stdlib/multiprocessing/shared_memory.pyi

@@ -37,4 +37,4 @@ class ShareableList(Generic[_SLT]):
     def count(self, value: _SLT) -> int: ...
     def index(self, value: _SLT) -> int: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...

stdlib/os/__init__.pyi

@@ -437,7 +437,7 @@ class DirEntry(Generic[AnyStr]):
     def stat(self, *, follow_symlinks: bool = True) -> stat_result: ...
     def __fspath__(self) -> AnyStr: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
     if sys.version_info >= (3, 12):
         def is_junction(self) -> bool: ...
 

stdlib/queue.pyi

@@ -46,7 +46,7 @@ class Queue(Generic[_T]):
     def _qsize(self) -> int: ...
     def task_done(self) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class PriorityQueue(Queue[_T]):
     queue: list[_T]
@@ -63,4 +63,4 @@ class SimpleQueue(Generic[_T]):
     def put_nowait(self, item: _T) -> None: ...
     def qsize(self) -> int: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...

stdlib/re.pyi

@@ -102,7 +102,7 @@ class Match(Generic[AnyStr]):
     def __copy__(self) -> Match[AnyStr]: ...
     def __deepcopy__(self, memo: Any, /) -> Match[AnyStr]: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 @final
 class Pattern(Generic[AnyStr]):
@@ -178,7 +178,7 @@ class Pattern(Generic[AnyStr]):
     def __eq__(self, value: object, /) -> bool: ...
     def __hash__(self) -> int: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 # ----- re variables and constants -----
 

stdlib/subprocess.pyi

@@ -88,7 +88,7 @@ class CompletedProcess(Generic[_T]):
     def __init__(self, args: _CMD, returncode: int, stdout: _T | None = None, stderr: _T | None = None) -> None: ...
     def check_returncode(self) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 if sys.version_info >= (3, 11):
     # 3.11 adds "process_group" argument
@@ -2560,7 +2560,7 @@ class Popen(Generic[AnyStr]):
     ) -> None: ...
     def __del__(self) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 # The result really is always a str.
 if sys.version_info >= (3, 11):

stdlib/tempfile.pyi

@@ -398,7 +398,7 @@ class SpooledTemporaryFile(IO[AnyStr], _SpooledTemporaryFileBase):
     def writable(self) -> bool: ...
     def __next__(self) -> AnyStr: ...  # type: ignore[override]
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class TemporaryDirectory(Generic[AnyStr]):
     name: AnyStr
@@ -457,7 +457,7 @@ class TemporaryDirectory(Generic[AnyStr]):
     def __enter__(self) -> AnyStr: ...
     def __exit__(self, exc: type[BaseException] | None, value: BaseException | None, tb: TracebackType | None) -> None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 # The overloads overlap, but they should still work fine.
 @overload

stdlib/types.pyi

@@ -302,7 +302,7 @@ class MappingProxyType(Mapping[_KT, _VT_co]):
     def values(self) -> ValuesView[_VT_co]: ...
     def items(self) -> ItemsView[_KT, _VT_co]: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
         def __reversed__(self) -> Iterator[_KT]: ...
         def __or__(self, value: Mapping[_T1, _T2], /) -> dict[_KT | _T1, _VT_co | _T2]: ...
         def __ror__(self, value: Mapping[_T1, _T2], /) -> dict[_KT | _T1, _VT_co | _T2]: ...

stdlib/unittest/case.pyi

@@ -329,7 +329,7 @@ class _AssertRaisesContext(_AssertRaisesBaseContext, Generic[_E]):
         self, exc_type: type[BaseException] | None, exc_value: BaseException | None, tb: TracebackType | None
     ) -> bool: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class _AssertWarnsContext(_AssertRaisesBaseContext):
     warning: WarningMessage

stdlib/urllib/parse.pyi

@@ -56,7 +56,7 @@ class _NetlocResultMixinBase(Generic[AnyStr]):
     @property
     def port(self) -> int | None: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 class _NetlocResultMixinStr(_NetlocResultMixinBase[str], _ResultMixinStr): ...
 class _NetlocResultMixinBytes(_NetlocResultMixinBase[bytes], _ResultMixinBytes): ...

stubs/regex/regex/regex.pyi

@@ -570,7 +570,7 @@ class Pattern(Generic[AnyStr]):
     def __copy__(self) -> Self: ...
     def __deepcopy__(self) -> Self: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
 @final
 class Match(Generic[AnyStr]):
@@ -649,4 +649,4 @@ class Match(Generic[AnyStr]):
     def __copy__(self) -> Self: ...
     def __deepcopy__(self) -> Self: ...
     if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
+        def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...