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[3.6] bpo-31970: Reduce performance overhead of asyncio debug mode. (GH-4314) (#4322)

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* bpo-31970: Reduce performance overhead of asyncio debug mode..
(cherry picked from commit 921e9432a1)
This commit is contained in:
Antoine Pitrou 2017-11-07 17:50:48 +01:00 • committed by GitHub
parent 518c6b9786
commit d8d218ffda
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7 changed files with 38 additions and 7 deletions
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Lib/asyncio/futures.py
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@ -159,7 +159,7 @@ class Future:
self._loop = loop
self._callbacks = []
if self._loop.get_debug():
self._source_traceback = traceback.extract_stack(sys._getframe(1))
self._source_traceback = events.extract_stack(sys._getframe(1))
_repr_info = base_futures._future_repr_info