Properly mark deprecated methods in threading (#13861)

stdlib/threading.pyi

@@ -5,6 +5,7 @@ from _typeshed import ProfileFunction, TraceFunction
 from collections.abc import Callable, Iterable, Mapping
 from types import TracebackType
 from typing import Any, TypeVar, final
+from typing_extensions import deprecated
 
 _T = TypeVar("_T")
 
@@ -44,9 +45,11 @@ if sys.version_info >= (3, 12):
 _profile_hook: ProfileFunction | None
 
 def active_count() -> int: ...
-def activeCount() -> int: ...  # deprecated alias for active_count()
+@deprecated("Use active_count() instead")
+def activeCount() -> int: ...
 def current_thread() -> Thread: ...
-def currentThread() -> Thread: ...  # deprecated alias for current_thread()
+@deprecated("Use current_thread() instead")
+def currentThread() -> Thread: ...
 def get_ident() -> int: ...
 def enumerate() -> list[Thread]: ...
 def main_thread() -> Thread: ...
@@ -89,11 +92,14 @@ class Thread:
     @property
     def native_id(self) -> int | None: ...  # only available on some platforms
     def is_alive(self) -> bool: ...
-    # the following methods are all deprecated
-    def getName(self) -> str: ...
-    def setName(self, name: str) -> None: ...
+    @deprecated("Get the daemon attribute instead")
     def isDaemon(self) -> bool: ...
+    @deprecated("Set the daemon attribute instead")
     def setDaemon(self, daemonic: bool) -> None: ...
+    @deprecated("Use the name attribute instead")
+    def getName(self) -> str: ...
+    @deprecated("Use the name attribute instead")
+    def setName(self, name: str) -> None: ...
 
 class _DummyThread(Thread):
     def __init__(self) -> None: ...
@@ -124,7 +130,8 @@ class Condition:
     def wait_for(self, predicate: Callable[[], _T], timeout: float | None = None) -> _T: ...
     def notify(self, n: int = 1) -> None: ...
     def notify_all(self) -> None: ...
-    def notifyAll(self) -> None: ...  # deprecated alias for notify_all()
+    @deprecated("Use notify_all() instead")
+    def notifyAll(self) -> None: ...
 
 class Semaphore:
     _value: int
@@ -138,7 +145,8 @@ class BoundedSemaphore(Semaphore): ...
 
 class Event:
     def is_set(self) -> bool: ...
-    def isSet(self) -> bool: ...  # deprecated alias for is_set()
+    @deprecated("Use is_set() instead")
+    def isSet(self) -> bool: ...
     def set(self) -> None: ...
     def clear(self) -> None: ...
     def wait(self, timeout: float | None = None) -> bool: ...