运行时错误:异常被忽略:<function _ProactorBasePipeTransport [英] RuntimeError: Exception ignored in: <function _ProactorBasePipeTransport
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问题描述
我正在使用 aiohttp、asyncio 和 codetiming 来发出并发请求.我最近将 Python 升级到 3.9.0 版,但出现 RuntimeError: 程序运行后事件循环已关闭.我正在尝试使用队列数据结构发出异步请求...
I am using aiohttp, asyncio and codetiming to make concurrent requests. I've recently upgraded Python to version 3.9.0 and I'm getting a RuntimeError: Event loop is closed after the program has runs. I am tring to make asynchronous requests using queue data structure...
import asyncio
import aiohttp
from codetiming import Timer
async def task(name, work_queue):
timer = Timer(text=f"Task {name} elapsed time: {{:.1f}}")
async with aiohttp.ClientSession() as session:
while not work_queue.empty():
url = await work_queue.get()
print(f"Task {name} getting URL: {url}")
timer.start()
async with session.get(url) as response:
await response.text()
timer.stop()
async def main():
# Create the queue of work
work_queue = asyncio.Queue()
# Put some work in the queue
for url in [
"http://google.com",
"http://yahoo.com",
"http://linkedin.com",
"http://apple.com",
"http://microsoft.com",
"http://facebook.com",
"http://twitter.com",
]:
await work_queue.put(url)
# Run the tasks
with Timer(text="\nTotal elapsed time: {:.1f}"):
await asyncio.gather(
asyncio.create_task(task("One", work_queue)),
asyncio.create_task(task("Two", work_queue)),
)
if __name__ == "__main__":
asyncio.run(main())
我也得到了有效结果,但我不知道为什么会出现此运行时错误.输出如下:
I also get my valid result but I don't know why I get this RunTime Error. The output is follows:
Exception ignored in: <function _ProactorBasePipeTransport.__del__ at 0x0000020634355E50>
Traceback (most recent call last):
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 116, in __del__
self.close()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 108, in close
self._loop.call_soon(self._call_connection_lost, None)
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 746, in call_soon
self._check_closed()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 510, in _check_closed
raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed
Exception ignored in: <function _ProactorBasePipeTransport.__del__ at 0x0000020634355E50>
Traceback (most recent call last):
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 116, in __del__
self.close()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 108, in close
self._loop.call_soon(self._call_connection_lost, None)
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 746, in call_soon
self._check_closed()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 510, in _check_closed
raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed
Exception ignored in: <function _ProactorBasePipeTransport.__del__ at 0x0000020634355E50>
Traceback (most recent call last):
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 116, in __del__
self.close()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 108, in close
self._loop.call_soon(self._call_connection_lost, None)
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 746, in call_soon
self._check_closed()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 510, in _check_closed
raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed
Exception ignored in: <function _ProactorBasePipeTransport.__del__ at 0x0000020634355E50>
Traceback (most recent call last):
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 116, in __del__
self.close()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 108, in close
self._loop.call_soon(self._call_connection_lost, None)
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 746, in call_soon
self._check_closed()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 510, in _check_closed
raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed
Exception ignored in: <function _ProactorBasePipeTransport.__del__ at 0x0000020634355E50>
Traceback (most recent call last):
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 116, in __del__
self.close()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 108, in close
self._loop.call_soon(self._call_connection_lost, None)
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 746, in call_soon
self._check_closed()
File "C:\Users\DELL\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 510, in _check_closed
raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed
推荐答案
尝试使用 asyncio.get_event_loop().run_until_complete(main())
而不是 asyncio.run(main())
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