GH-82604: fix docs about configuring selector (#97755)

kumaraditya303 · web-flow · commit 53503ff60e9a · 2022-10-04T09:45:37.000-07:00
diff --git a/Doc/library/asyncio-eventloop.rst b/Doc/library/asyncio-eventloop.rst
@@ -1632,9 +1632,12 @@ on Unix and :class:`ProactorEventLoop` on Windows.
       import asyncio
       import selectors
 
-      selector = selectors.SelectSelector()
-      loop = asyncio.SelectorEventLoop(selector)
-      asyncio.set_event_loop(loop)
+      class MyPolicy(asyncio.DefaultEventLoopPolicy):
+         def new_event_loop(self):
+            selector = selectors.SelectSelector()
+            return asyncio.SelectorEventLoop(selector)
+
+      asyncio.set_event_loop_policy(MyPolicy())
 
 
    .. availability:: Unix, Windows.
