Issue #7403: Fixed possible race condition in lock creation.
diff --git a/Lib/logging/__init__.py b/Lib/logging/__init__.py
index 3fe03cd..03c67b0 100644
--- a/Lib/logging/__init__.py
+++ b/Lib/logging/__init__.py
@@ -186,7 +186,10 @@
#the lock would already have been acquired - so we need an RLock.
#The same argument applies to Loggers and Manager.loggerDict.
#
-_lock = None
+if thread:
+ _lock = threading.RLock()
+else:
+ _lock = None
def _acquireLock():
"""
@@ -194,9 +197,6 @@
This should be released with _releaseLock().
"""
- global _lock
- if (not _lock) and thread:
- _lock = threading.RLock()
if _lock:
_lock.acquire()
diff --git a/Misc/NEWS b/Misc/NEWS
index 746e342..ca36adc 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -33,6 +33,8 @@
Library
-------
+- Issue #7403: logging: Fixed possible race condition in lock creation.
+
- Issue #7341: Close the internal file object in the TarFile constructor in
case of an error.