bpo-36829: test_threading: Fix a ref cycle (GH-13752)

2019-06-02 23:08:41 +02:00 · 2019-06-02 23:08:41 +02:00 · cdce0574d0
parent aca273e240
commit cdce0574d0
1 changed files with 5 additions and 1 deletions
--- a/Lib/test/test_threading.py
+++ b/Lib/test/test_threading.py
@ -1140,7 +1140,11 @@ class ExceptHookTests(BaseTestCase):
                raise ValueError("bug")
            except Exception as exc:
                args = threading.ExceptHookArgs([*sys.exc_info(), None])
-                threading.excepthook(args)
+                try:
+                    threading.excepthook(args)
+                finally:
+                    # Explicitly break a reference cycle
+                    args = None

        stderr = stderr.getvalue().strip()
        self.assertIn(f'Exception in thread {threading.get_ident()}:\n', stderr)