[issue22448] call_at/call_later with Timer cancellation can result in (practically) unbounded memory usage.

[Joshua Moore-Oliva]

Joshua Moore-Oliva added the comment:

> I will try to review later tonight.

Thanks!

> That makes sense when using gevent, but not when using asyncio or Trollius. Nothing will make events run if you don't use yield [from].

Yes, I am aware of that. I have written a small custom library using fibers (a greenlet-like library) on top of asyncio so that I don't need to use yield from in my application(s).

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<http://bugs.python.org/issue22448>
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