bpo-43234: Prohibit non-ThreadPoolExecutor in loop.set_default_executor (GH-24540)

1 files changed, 4 insertions, 8 deletions

diff --git a/Doc/library/asyncio-eventloop.rst b/Doc/library/asyncio-eventloop.rst
index 83ab736..f0f6ae6 100644
--- a/Doc/library/asyncio-eventloop.rst
+++ b/Doc/library/asyncio-eventloop.rst
@@ -1132,16 +1132,12 @@ Executing code in thread or process pools
 .. method:: loop.set_default_executor(executor)
 
    Set *executor* as the default executor used by :meth:`run_in_executor`.
-   *executor* should be an instance of
+   *executor* must be an instance of
    :class:`~concurrent.futures.ThreadPoolExecutor`.
 
-   .. deprecated:: 3.8
-      Using an executor that is not an instance of
-      :class:`~concurrent.futures.ThreadPoolExecutor` is deprecated and
-      will trigger an error in Python 3.9.
-
-   *executor* must be an instance of
-   :class:`concurrent.futures.ThreadPoolExecutor`.
+   .. versionchanged:: 3.11
+      *executor* must be an instance of
+      :class:`~concurrent.futures.ThreadPoolExecutor`.
 
 
 Error Handling API