Issue #9947: logging: Fixed locking bug in stopListening.

Lib/logging/config.py

@@ -917,8 +917,10 @@ def stopListening():
     Stop the listening server which was created with a call to listen().
     """
     global _listener
-    if _listener:
-        logging._acquireLock()
-        _listener.abort = 1
-        _listener = None
+    logging._acquireLock()
+    try:
+        if _listener:
+            _listener.abort = 1
+            _listener = None
+    finally:
         logging._releaseLock()

Misc/NEWS

@@ -68,6 +68,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #9947: logging: Fixed locking bug in stopListening.
+
 - Issue #9945: logging: Fixed locking bugs in addHandler/removeHandler.
 
 - Issue #9936: Fixed executable lines' search in the trace module.