标签：get 解决问题 报错 wait func pipe self base port
找了半天没找到原因，记录一下
操作系统：windows 8.1
python版本：python 3.8.1
aiohttp版本：3.6.2
源码：
1 import asyncio 2 import aiohttp 3 4 5 async def aiohttp_request_test(url): 6 async with aiohttp.request(‘get‘, url=url) as resp: 7 await resp.text() 8 # await asyncio.sleep(1) # A1 9 10 11 async def main(): 12 await asyncio.gather(aiohttp_request_test(‘https://www.baidu.com‘)) 13 14 15 asyncio.run(main()) 16 # loop = asyncio.get_event_loop() 17 # loop.run_until_complete(main())
运行以上代码时，出现如下异常：
Exception ignored in: <function _ProactorBasePipeTransport.__del__ at 0x02A8C8E0> Traceback (most recent call last): File "D:\Python\Anaconda3\envs\python38\lib\asyncio\proactor_events.py", line 116, in __del__ self.close() File "D:\Python\Anaconda3\envs\python38\lib\asyncio\proactor_events.py", line 108, in close self._loop.call_soon(self._call_connection_lost, None) File "D:\Python\Anaconda3\envs\python38\lib\asyncio\base_events.py", line 715, in call_soon self._check_closed() File "D:\Python\Anaconda3\envs\python38\lib\asyncio\base_events.py", line 508, in _check_closed raise RuntimeError(‘Event loop is closed‘) RuntimeError: Event loop is closed
但是在第8行处加上一句await asyncio.sleep(1)后，无异常（方案A）
或者将
asyncio.run(main())
改为：
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
也无异常。（方案B）
（实际使用的时候方案B也会出现上述异常，但这里未能复现，且也可用方案A解决）
我就很奇怪为什么加上一句await asyncio.sleep(1)就不报错了
还有，如果request抛出了一个异常并被捕获的话（将aiohttp_request_test改为如下）：
async def aiohttp_request_test(url): try: async with aiohttp.request(‘get‘, url=url) as resp: await resp.text() except: pass
则也不会报RuntimeError: Event loop is closed
困了，找到原因了再回来补充。
[未解决问题记录]python asyncio+aiohttp出现Exception ignored：RuntimeError('Event loop is closed')
标签：get 解决问题 报错 wait func pipe self base port
原文地址：https://www.cnblogs.com/qyxfzmbz/p/12310524.html
