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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)
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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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5
Lib/asyncio/base_events.py
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@ -1222,6 +1222,11 @@ class BaseEventLoop(events.AbstractEventLoop):
handler is set, and can be called by a custom exception
handler that wants to defer to the default behavior.
This default handler logs the error message and other
context-dependent information. In debug mode, a truncated
stack trace is also appended showing where the given object
(e.g. a handle or future or task) was created, if any.
The context parameter has the same meaning as in
`call_exception_handler()`.
"""