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Author bar.harel
Recipients Davy Durham, asvetlov, bar.harel, yselivanov
Date 2020-12-01.17:47:11
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
It relinquishes control for exactly one event loop cycle.

You'll see that it takes two or three cycles and then gets cancelled correctly.

The reason being is that recovery from your `await asyncio.sleep(1)` takes two or three cycles. (Under the hood, a few `asyncio.call_soon()` are called in a chain and only 1 is executed each cycle).

This is not a bug, but rather intended behavior. You should probably use `asyncio.to_thread()` or preferably run cpu-intensive code on a different process.

@triage Please close as not-a-bug.
Date User Action Args
2020-12-01 17:47:12bar.harelsetrecipients: + bar.harel, asvetlov, yselivanov, Davy Durham
2020-12-01 17:47:12bar.harelsetmessageid: <>
2020-12-01 17:47:12bar.harellinkissue40800 messages
2020-12-01 17:47:11bar.harelcreate