fix: A bogus typecheck error with asyncio.PidfdChildWatcher

achimnol · Apr 25, 2022 · 46152be · 46152be
1 parent 20d90b6
commit 46152be
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/aiotools/server.py b/src/aiotools/server.py
@@ -252,8 +252,9 @@ def helper(*args, **kwargs):
 def setup_child_watcher(loop: asyncio.AbstractEventLoop) -> None:
     try:
         asyncio.get_child_watcher()
-        if hasattr(asyncio, 'PidfdChildWatcher'):
-            watcher = asyncio.PidfdChildWatcher()
+        watcher_cls = getattr(asyncio, 'PidfdChildWatcher', None)
+        if watcher_cls is not None:
+            watcher = watcher_cls()
             asyncio.set_child_watcher(watcher)
             watcher.attach_loop(loop)
     except NotImplementedError: