commit 99eb70a9eb9493602ff6ad8bb92df4318cf05a3e
author Hill Ma <mahiuchun@users.noreply.github.com> Thu Dec 05 04:40:12 2019 -0800
committer Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Thu Dec 05 04:40:12 2019 -0800
tree eccbf5c0c0ce2c69a4eac2dab15ab99a5676e393
parent bb815499af855b1759c02535f8d7a9d0358e74e8

bpo-38951: Use threading.main_thread() check in asyncio (GH-17433)



https://bugs.python.org/issue38951

Lib/asyncio/events.py

diff --git a/Lib/asyncio/events.py b/Lib/asyncio/events.py
index 36b7ea3..c7343f5 100644
--- a/Lib/asyncio/events.py
+++ b/Lib/asyncio/events.py
@@ -636,7 +636,7 @@
         """
         if (self._local._loop is None and
                 not self._local._set_called and
-                isinstance(threading.current_thread(), threading._MainThread)):
+                threading.current_thread() is threading.main_thread()):
             self.set_event_loop(self.new_event_loop())
 
         if self._local._loop is None: