在Asyncio中执行“忘却”任务

使用Python的asyncio库时,如何启动任务然后不关心它的完成？

例

@asyncio.coroutine
def f():
    yield From(asyncio.sleep(1))
    print("world!")

@asyncio.coroutine
def g():
    desired_operation(f())
    print("Hello, ")
    yield From(asyncio.sleep(2))

>>> loop.run_until_complete(g())
'Hello, world!'

解决方法:

您正在寻找asyncio.ensure_future(如果您的trollius / asyncio版本太旧而无法确保确保_future,则为asyncio.async)：

from __future__ import print_function

import trollius as asyncio
from trollius import From

@asyncio.coroutine
def f():
    yield From(asyncio.sleep(1))
    print("world!")

@asyncio.coroutine
def g():
    asyncio.ensure_future(f())
    print("Hello, ", end='')
    yield From(asyncio.sleep(2))

loop = asyncio.get_event_loop()
loop.run_until_complete(g())

输出：

Hello, world!

标签：python-asyncio,python
来源： https://codeday.me/bug/20191119/2039565.html