Various asyncio classes: remove the loop argument on 3.10 (#9630)

stdlib/asyncio/locks.pyi

@@ -45,20 +45,20 @@ else:
         ) -> None: ...
 
 class Lock(_ContextManagerMixin):
-    if sys.version_info >= (3, 11):
+    if sys.version_info >= (3, 10):
         def __init__(self) -> None: ...
     else:
-        def __init__(self, *, loop: AbstractEventLoop | None = ...) -> None: ...
+        def __init__(self, *, loop: AbstractEventLoop | None = None) -> None: ...
 
     def locked(self) -> bool: ...
     async def acquire(self) -> Literal[True]: ...
     def release(self) -> None: ...
 
 class Event:
-    if sys.version_info >= (3, 11):
+    if sys.version_info >= (3, 10):
         def __init__(self) -> None: ...
     else:
-        def __init__(self, *, loop: AbstractEventLoop | None = ...) -> None: ...
+        def __init__(self, *, loop: AbstractEventLoop | None = None) -> None: ...
 
     def is_set(self) -> bool: ...
     def set(self) -> None: ...
@@ -66,10 +66,10 @@ class Event:
     async def wait(self) -> Literal[True]: ...
 
 class Condition(_ContextManagerMixin):
-    if sys.version_info >= (3, 11):
+    if sys.version_info >= (3, 10):
         def __init__(self, lock: Lock | None = None) -> None: ...
     else:
-        def __init__(self, lock: Lock | None = None, *, loop: AbstractEventLoop | None = ...) -> None: ...
+        def __init__(self, lock: Lock | None = None, *, loop: AbstractEventLoop | None = None) -> None: ...
 
     def locked(self) -> bool: ...
     async def acquire(self) -> Literal[True]: ...
@@ -82,10 +82,10 @@ class Condition(_ContextManagerMixin):
 class Semaphore(_ContextManagerMixin):
     _value: int
     _waiters: deque[Future[Any]]
-    if sys.version_info >= (3, 11):
+    if sys.version_info >= (3, 10):
         def __init__(self, value: int = 1) -> None: ...
     else:
-        def __init__(self, value: int = 1, *, loop: AbstractEventLoop | None = ...) -> None: ...
+        def __init__(self, value: int = 1, *, loop: AbstractEventLoop | None = None) -> None: ...
 
     def locked(self) -> bool: ...
     async def acquire(self) -> Literal[True]: ...

stdlib/asyncio/queues.pyi

@@ -13,10 +13,10 @@ class QueueFull(Exception): ...
 _T = TypeVar("_T")
 
 class Queue(Generic[_T]):
-    if sys.version_info >= (3, 11):
+    if sys.version_info >= (3, 10):
         def __init__(self, maxsize: int = 0) -> None: ...
     else:
-        def __init__(self, maxsize: int = 0, *, loop: AbstractEventLoop | None = ...) -> None: ...
+        def __init__(self, maxsize: int = 0, *, loop: AbstractEventLoop | None = None) -> None: ...
 
     def _init(self, maxsize: int) -> None: ...
     def _get(self) -> _T: ...

tests/stubtest_allowlists/py310.txt

@@ -65,6 +65,22 @@ tempfile.SpooledTemporaryFile.readable
 tempfile.SpooledTemporaryFile.seekable
 tempfile.SpooledTemporaryFile.writable
 
+# The "loop" argument exists at runtime,
+# but raises TypeError if you try to provide any value for it
+asyncio.BoundedSemaphore.__init__
+asyncio.Condition.__init__
+asyncio.Event.__init__
+asyncio.Lock.__init__
+asyncio.Queue.__init__
+asyncio.Semaphore.__init__
+asyncio.locks.BoundedSemaphore.__init__
+asyncio.locks.Semaphore.__init__
+asyncio.locks.Condition.__init__
+asyncio.locks.Event.__init__
+asyncio.locks.Lock.__init__
+asyncio.locks.Semaphore.__init__
+asyncio.queues.Queue.__init__
+
 # Exists at runtime, but missing from stubs
 _collections_abc.AsyncIterable.__class_getitem__
 _collections_abc.Awaitable.__class_getitem__