In asyncio, does the event_loop still running after run_until_complete returned?

Steven D'Aprano steve+comp.lang.python at
Tue Apr 3 22:28:46 EDT 2018

On Mon, 02 Apr 2018 23:37:51 -0600, Ian Kelly wrote:

> If it helps to demystify things, here is a simplified version of what
> run_until_complete actually does:
>     def run_until_complete(self, future):
>         """Run until the Future is done.
>         If the argument is a coroutine, it is wrapped in a Task.
>         Return the Future's result, or raise its exception. """

Demystify, he says.

Future, he says. Coroutine. Task. What's self? What's tasks? What's 
events? Enquiring minds want to know.

>        future = tasks.ensure_future(future, loop=self)
>         future.add_done_callback(self.stop)
>         self.run_forever()
>         future.remove_done_callback(self.stop)
>         return future.result()
>     def run_forever(self):
>         """Run until stop() is called."""


That's obviously a different meaning to the word "forever" than I learnt 
at school.


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