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[3.9] bpo-39349: Add cancel_futures to Executor.shutdown base class (GH-22023) #22048

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Merged
merged 1 commit into from
Sep 2, 2020
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[3.9] bpo-39349: Add cancel_futures to Executor.shutdown base class (GH-22023) #22048

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5 changes: 4 additions & 1 deletion Lib/concurrent/futures/_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -605,7 +605,7 @@ def result_iterator():
future.cancel()
return result_iterator()

def shutdown(self, wait=True):
def shutdown(self, wait=True, *, cancel_futures=False):
"""Clean-up the resources associated with the Executor.

It is safe to call this method several times. Otherwise, no other
Expand All @@ -615,6 +615,9 @@ def shutdown(self, wait=True):
wait: If True then shutdown will not return until all running
futures have finished executing and the resources used by the
executor have been reclaimed.
cancel_futures: If True then shutdown will cancel all pending
futures. Futures that are completed or running will not be
cancelled.
"""
pass

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