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| author | Guido van Rossum <guido@python.org> | 2022-06-30 17:10:46 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-06-30 17:10:46 (GMT) |
| commit | 594c3699492bfb007650538726d953cbed55de04 (patch) | |
| tree | 0c08bef359427752e98c566d436e5d3208b1b490 /Lib/asyncio/taskgroups.py | |
| parent | 4261b6bffc0b8bb5c6d4d80578a81b7520f4aefc (diff) | |
| download | cpython-594c3699492bfb007650538726d953cbed55de04.zip cpython-594c3699492bfb007650538726d953cbed55de04.tar.gz cpython-594c3699492bfb007650538726d953cbed55de04.tar.bz2 | |
GH-94398: TaskGroup: Fail create_task() during shutdown (GH-94400)
Once the task group is shutting down, it should not be possible to create a new task.
Here "shutting down" means `self._aborting` is set, indicating that at least one task
has failed and we have cancelled all others.
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Diffstat (limited to 'Lib/asyncio/taskgroups.py')
| -rw-r--r-- | Lib/asyncio/taskgroups.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Lib/asyncio/taskgroups.py b/Lib/asyncio/taskgroups.py index 9e0610d..3ca6506 100644 --- a/Lib/asyncio/taskgroups.py +++ b/Lib/asyncio/taskgroups.py @@ -138,6 +138,8 @@ class TaskGroup: raise RuntimeError(f"TaskGroup {self!r} has not been entered") if self._exiting and not self._tasks: raise RuntimeError(f"TaskGroup {self!r} is finished") + if self._aborting: + raise RuntimeError(f"TaskGroup {self!r} is shutting down") if context is None: task = self._loop.create_task(coro) else: |