[已解决]这个为什么报错呀，想了半天没有明白

御坂19090

1. import asyncio
   
2. import time
   
3. 
   
4. async def func1():
   
5.     print("你好啊，我是1")
   
6.     await asyncio.sleep(3)
   
7.     print("你好啊，我是1")
   
8. 
   
9. 
   
10. async def func2():
    
11.     print("你好啊，我是2")
    
12.     await asyncio.sleep(2)
    
13.     print("你好啊，我是2")
    
14. 
    
15. 
    
16. async def func3():
    
17.     print("你好啊，我是3")
    
18.     await asyncio.sleep(4)
    
19.     print("你好啊，我是3")
    
20. 
    
21. 
    
22. if __name__ == '__main__':
    
23.     f1 = func1()  # 此时的函数是异步协程函数。此时函数执行得到的是一个协程对象
    
24.     f2 = func2()
    
25.     f3 = func3()
    
26.     # asyncio.run(f1)  #协程程序运行需要asyncio模块的支持
    
27.     tasks = [
    
28.         f1, f2, f3
    
29.     ]
    
30.     t1 = time.time()
    
31.     # 一次性启动多个任务(协程)
    
32.     asyncio.run(asyncio.wait(tasks))
    
33.     t2 = time.time()
    
34.     print(t2 - t1)
    

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最佳答案

月排行榜 / 总排行榜

isdkz

2023-2-11 12:51:48

这个python3.11的问题，python3.11直接传一个协程对象会报错，得传 task

参考文章：
https://blog.csdn.net/m0_69082030/article/details/124327891
https://stackoverflow.com/questi ... -running-event-loop

参考代码：

1. import asyncio
   
2. import time
   
3. 
   
4. async def func1():
   
5.     print("你好啊，我是1")
   
6.     await asyncio.sleep(3)
   
7.     print("你好啊，我是1")
   
8. 
   
9. 
   
10. async def func2():
    
11.     print("你好啊，我是2")
    
12.     await asyncio.sleep(2)
    
13.     print("你好啊，我是2")
    
14. 
    
15. 
    
16. async def func3():
    
17.     print("你好啊，我是3")
    
18.     await asyncio.sleep(4)
    
19.     print("你好啊，我是3")
    
20. 
    
21. 
    
22. if __name__ == '__main__':
    
23.     f1 = func1()  # 此时的函数是异步协程函数。此时函数执行得到的是一个协程对象
    
24.     f2 = func2()
    
25.     f3 = func3()
    
26.     t1 = time.time()
    
27.     loop = asyncio.new_event_loop()
    
28.     tasks = [
    
29.         loop.create_task(i) for i in [f1, f2, f3]
    
30.     ]
    
31.     loop.run_until_complete(asyncio.wait(tasks))
    
32.     t2 = time.time()
    
33.     print(t2 - t1)
    

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跳转到最佳答案楼层

isdkz

这个python3.11的问题，python3.11直接传一个协程对象会报错，得传 task

参考文章：
https://blog.csdn.net/m0_69082030/article/details/124327891
https://stackoverflow.com/questi ... -running-event-loop

参考代码：

1. import asyncio
   
2. import time
   
3. 
   
4. async def func1():
   
5.     print("你好啊，我是1")
   
6.     await asyncio.sleep(3)
   
7.     print("你好啊，我是1")
   
8. 
   
9. 
   
10. async def func2():
    
11.     print("你好啊，我是2")
    
12.     await asyncio.sleep(2)
    
13.     print("你好啊，我是2")
    
14. 
    
15. 
    
16. async def func3():
    
17.     print("你好啊，我是3")
    
18.     await asyncio.sleep(4)
    
19.     print("你好啊，我是3")
    
20. 
    
21. 
    
22. if __name__ == '__main__':
    
23.     f1 = func1()  # 此时的函数是异步协程函数。此时函数执行得到的是一个协程对象
    
24.     f2 = func2()
    
25.     f3 = func3()
    
26.     t1 = time.time()
    
27.     loop = asyncio.new_event_loop()
    
28.     tasks = [
    
29.         loop.create_task(i) for i in [f1, f2, f3]
    
30.     ]
    
31.     loop.run_until_complete(asyncio.wait(tasks))
    
32.     t2 = time.time()
    
33.     print(t2 - t1)
    

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isdkz

我运行没有问题

鱼cpython学习者

我这里正常运行

御坂19090

实在想不明白

1. C:\Users\misaka\AppData\Local\Programs\Python\Python311\python.exe C:\Users\misaka\PycharmProjects\pythonProject\爬虫\第四章\协程.py
   
2. Traceback (most recent call last):
   
3.   File "C:\Users\misaka\PycharmProjects\pythonProject\爬虫\第四章\协程.py", line 32, in <module>
   
4.     asyncio.run(asyncio.wait(tasks))
   
5.   File "C:\Users\misaka\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 190, in run
   
6.     return runner.run(main)
   
7.            ^^^^^^^^^^^^^^^^
   
8.   File "C:\Users\misaka\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 118, in run
   
9.     return self._loop.run_until_complete(task)
   
10.            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    
11.   File "C:\Users\misaka\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_events.py", line 650, in run_until_complete
    
12.     return future.result()
    
13.            ^^^^^^^^^^^^^^^
    
14.   File "C:\Users\misaka\AppData\Local\Programs\Python\Python311\Lib\asyncio\tasks.py", line 415, in wait
    
15.     raise TypeError("Passing coroutines is forbidden, use tasks explicitly.")
    
16. TypeError: Passing coroutines is forbidden, use tasks explicitly.
    
17. sys:1: RuntimeWarning: coroutine 'func1' was never awaited
    
18. sys:1: RuntimeWarning: coroutine 'func2' was never awaited
    
19. sys:1: RuntimeWarning: coroutine 'func3' was never awaited
    

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