Update Lib/importlib/_bootstrap.py

corona10 · ericsnowcurrently · corona10 · commit 79fd69717568 · 2023-02-17T10:05:10.000+09:00
Co-authored-by: Eric Snow &lt;ericsnowcurrently@gmail.com&gt;
diff --git a/Lib/importlib/_bootstrap.py b/Lib/importlib/_bootstrap.py
@@ -89,6 +89,7 @@ def __exit__(self, *args, **kwargs):
             # gh-101766: glboal cache should be cleaned-up
             # if there is no more _blocking_on for this thread.
             del _blocking_on[self.thread_id]
+            del self.blocked_on
 
 
 class _DeadlockError(RuntimeError):
