使用python asyncio的多个任务

时间:2018-08-05 16:35:41

标签: python python-3.x multithreading asynchronous python-asyncio

我有以下代码:

import asyncio

async def test_1():      
    res1 = await foo1()
    return res1

async def test_2():      
    res2 = await foo2()
    return res2

if __name__ == '__main__':
    print(asyncio.get_event_loop().run_until_complete([test_1, test_2]))

但是对.run_until_complete()的最后一次调用不起作用。如何使用.run_until_complete()对多个任务执行异步调用?

1 个答案:

答案 0 :(得分:3)

我正在寻找示例,并且找到了答案。我们可以运行一个简单的任务,该任务收集多个协程:

import asyncio    

async def test_1(dummy):
  res1 = await foo1()
  return res1

async def test_2(dummy):
  res2 = await foo2()
  return res2

async def multiple_tasks(dummy):
  input_coroutines = [test_1(dummy), test_2(dummy)]
  res = await asyncio.gather(*input_coroutines, return_exceptions=True)
  return res

if __name__ == '__main__':
  dummy = 0
  res1, res2 = asyncio.get_event_loop().run_until_complete(multiple_tasks(dummy))