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-rw-r--r--Lib/logging/__init__.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/logging/__init__.py b/Lib/logging/__init__.py
index 591f45b..fa03f78 100644
--- a/Lib/logging/__init__.py
+++ b/Lib/logging/__init__.py
@@ -708,7 +708,8 @@ def _removeHandlerRef(wr):
# This function can be called during module teardown, when globals are
# set to None. If _acquireLock is None, assume this is the case and do
# nothing.
- if _acquireLock is not None:
+ if (_acquireLock is not None and _handlerList is not None and
+ _releaseLock is not None):
_acquireLock()
try:
if wr in _handlerList: