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-rw-r--r--Lib/test/test_concurrent_futures/test_deadlock.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/Lib/test/test_concurrent_futures/test_deadlock.py b/Lib/test/test_concurrent_futures/test_deadlock.py
index a76e075c3be..af702542081 100644
--- a/Lib/test/test_concurrent_futures/test_deadlock.py
+++ b/Lib/test/test_concurrent_futures/test_deadlock.py
@@ -145,6 +145,9 @@ class ExecutorDeadlockTest:
self._check_crash(BrokenProcessPool, id, ExitAtUnpickle())
def test_error_at_task_unpickle(self):
+ # gh-109832: Restore stderr overriden by _raise_error_ignore_stderr()
+ self.addCleanup(setattr, sys, 'stderr', sys.stderr)
+
# Check problem occurring while unpickling a task on workers
self._check_crash(BrokenProcessPool, id, ErrorAtUnpickle())
@@ -180,6 +183,9 @@ class ExecutorDeadlockTest:
self._check_crash(PicklingError, _return_instance, ErrorAtPickle)
def test_error_during_result_unpickle_in_result_handler(self):
+ # gh-109832: Restore stderr overriden by _raise_error_ignore_stderr()
+ self.addCleanup(setattr, sys, 'stderr', sys.stderr)
+
# Check problem occurring while unpickling a task in
# the result_handler thread
self._check_crash(BrokenProcessPool,