From 775f8819e319127f9bfb046773b74bcc62c68b6a Mon Sep 17 00:00:00 2001 From: Dong-hee Na Date: Fri, 17 Feb 2023 19:14:07 +0900 Subject: gh-101766: Fix refleak for _BlockingOnManager resources (gh-101942) --- Lib/importlib/_bootstrap.py | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Lib/importlib/_bootstrap.py b/Lib/importlib/_bootstrap.py index bebe7e1..1ef7b6a 100644 --- a/Lib/importlib/_bootstrap.py +++ b/Lib/importlib/_bootstrap.py @@ -85,6 +85,11 @@ class _BlockingOnManager: def __exit__(self, *args, **kwargs): """Remove self.lock from this thread's _blocking_on list.""" self.blocked_on.remove(self.lock) + if len(self.blocked_on) == 0: + # 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): -- cgit v0.12