diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
index 9ba5f68fd4a53c..3ed7fdb3fabde6 100644
--- a/Lib/test/test_threading.py
+++ b/Lib/test/test_threading.py
@@ -1849,6 +1849,23 @@ def modify_file():
t.start()
t.join()
+ def test_dummy_thread_on_interpreter_shutdown(self):
+ # GH-130522: When `threading` held a reference to itself and then a
+ # _DummyThread() object was created, destruction of the dummy thread
+ # would emit an unraisable exception at shutdown, due to a lock being
+ # destroyed.
+ code = """if True:
+ import sys
+ import threading
+
+ threading.x = sys.modules[__name__]
+ x = threading._DummyThread()
+ """
+ rc, out, err = assert_python_ok("-c", code)
+ self.assertEqual(rc, 0)
+ self.assertEqual(out, b"")
+ self.assertEqual(err, b"")
+
class ThreadRunFail(threading.Thread):
def run(self):
diff --git a/Lib/threading.py b/Lib/threading.py
index 11f1b5af6ac1b3..acf5090716c9be 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -1381,7 +1381,7 @@ def __init__(self, dummy_thread):
# the related _DummyThread will be kept forever!
_thread_local_info._track_dummy_thread_ref = self
- def __del__(self):
+ def __del__(self, _active_limbo_lock=_active_limbo_lock, _active=_active):
with _active_limbo_lock:
if _active.get(self._tident) is self._dummy_thread:
_active.pop(self._tident, None)
diff --git a/Misc/NEWS.d/next/Library/2025-07-25-09-21-56.gh-issue-130522.Crwq68.rst b/Misc/NEWS.d/next/Library/2025-07-25-09-21-56.gh-issue-130522.Crwq68.rst
new file mode 100644
index 00000000000000..6c2246631dda9e
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-07-25-09-21-56.gh-issue-130522.Crwq68.rst
@@ -0,0 +1,2 @@
+Fix unraisable :exc:`TypeError` raised during :term:`interpreter shutdown`
+in the :mod:`threading` module.
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