From f4a14941e6e54b15012fca067f6a9b2ff29f201a Mon Sep 17 00:00:00 2001
From: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
Date: Sat, 22 Oct 2022 21:35:11 +0530
Subject: [PATCH] GH-98543: Fix `asyncio.TaskGroup` to not keep reference to
errors after raising ExceptionGroup (#98544)
---
Lib/asyncio/taskgroups.py | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/Lib/asyncio/taskgroups.py b/Lib/asyncio/taskgroups.py
index 5d5e2a8a85d..911419e1769 100644
--- a/Lib/asyncio/taskgroups.py
+++ b/Lib/asyncio/taskgroups.py
@@ -128,11 +128,11 @@ async def __aexit__(self, et, exc, tb):
# Exceptions are heavy objects that can have object
# cycles (bad for GC); let's not keep a reference to
# a bunch of them.
- errors = self._errors
- self._errors = None
-
- me = BaseExceptionGroup('unhandled errors in a TaskGroup', errors)
- raise me from None
+ try:
+ me = BaseExceptionGroup('unhandled errors in a TaskGroup', self._errors)
+ raise me from None
+ finally:
+ self._errors = None
def create_task(self, coro, *, name=None, context=None):
if not self._entered:
--
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