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  1. import asyncio
  2.  
  3. fut = asyncio.Future()
  4.  
  5. async def waiter():
  6. 	await fut
  7.  
  8. fut_waiter = asyncio.ensure_future(waiter())
  9.  
  10. # cancel the waiter on fut
  11. fut_waiter.cancel()
  12.  
  13. print(fut.done())
  14.  
Success #stdin #stdout #stderr 0.1s 17140KB
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stdin
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Standard input is empty
stdout
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False
stderr
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Task was destroyed but it is pending!
task: <Task cancelling coro=<waiter() running at ./prog.py:5>>
sys:1: RuntimeWarning: coroutine 'waiter' was never awaited
https://ideone.com/izIfqw
language:
Python 3 (python  3.12)
created:
7 years ago
visibility:
public

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