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[3.11] GH-98543: Fix asyncio.TaskGroup to not keep reference to errors after raising ExceptionGroup (GH-98544) (#98550)

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GH-98543: Fix `asyncio.TaskGroup`  to not keep reference to errors after raising ExceptionGroup  (GH-98544)
(cherry picked from commit f4a14941e6)

Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
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Miss Islington (bot) 2022-10-24 11:08:22 -07:00 • committed by GitHub
parent 032d1276ed
commit 36d25a4f7f
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1 changed files with 5 additions and 5 deletions
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10
Lib/asyncio/taskgroups.py
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@ -128,11 +128,11 @@ class TaskGroup:
# 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: