如何解决aiohttp.client_exceptions.ClientConnectorError:无法连接到主机stackoverflow.com:443 ssl:default [连接呼叫失败'151.101.193.69',443]
这是我的代码:
import asyncio
import aiohttp
async def main():
loop = asyncio.get_event_loop()
url = "https://stackoverflow.com/"
async with aiohttp.ClientSession(loop=loop) as session:
async with session.get(url,timeout=30) as resp:
print(resp.status)
asyncio.run(main())
如果我在计算机上运行它,一切正常,但是如果我在pythonanywhere上运行,则会出现此错误:
Traceback (most recent call last):
File "/home/0dminnimda/.local/lib/python3.8/site-packages/aiohttp/connector.py",line 936,in _wrap_create_connection
return await self._loop.create_connection(*args,**kwargs) # type: ignore # noqa
File "/usr/lib/python3.8/asyncio/base_events.py",line 1017,in create_connection
raise exceptions[0]
File "/usr/lib/python3.8/asyncio/base_events.py",line 1002,in create_connection
sock = await self._connect_sock(
File "/usr/lib/python3.8/asyncio/base_events.py",line 916,in _connect_sock
await self.sock_connect(sock,address)
File "/usr/lib/python3.8/asyncio/selector_events.py",line 485,in sock_connect
return await fut
File "/usr/lib/python3.8/asyncio/selector_events.py",line 517,in _sock_connect_cb
raise OSError(err,f'Connect call failed {address}')
ConnectionRefusedError: [Errno 111] Connect call failed ('151.101.193.69',443)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "test_c.py",line 39,in <module>
asyncio.run(main())
File "/usr/lib/python3.8/asyncio/runners.py",line 43,in run
return loop.run_until_complete(main)
File "/usr/lib/python3.8/asyncio/base_events.py",line 608,in run_until_complete
return future.result()
File "test_c.py",line 28,in main
async with session.get(url,timeout=30) as resp: #,headers=headers
File "/home/0dminnimda/.local/lib/python3.8/site-packages/aiohttp/client.py",line 1012,in __aenter__
self._resp = await self._coro
File "/home/0dminnimda/.local/lib/python3.8/site-packages/aiohttp/client.py",line 480,in _request
conn = await self._connector.connect(
File "/home/0dminnimda/.local/lib/python3.8/site-packages/aiohttp/connector.py",line 523,in connect
proto = await self._create_connection(req,traces,timeout)
File "/home/0dminnimda/.local/lib/python3.8/site-packages/aiohttp/connector.py",line 858,in _create_connection
_,proto = await self._create_direct_connection(
File "/home/0dminnimda/.local/lib/python3.8/site-packages/aiohttp/connector.py",line 1004,in _create_direct_connection
raise last_exc
File "/home/0dminnimda/.local/lib/python3.8/site-packages/aiohttp/connector.py",line 980,in _create_direct_connection
transp,proto = await self._wrap_create_connection(
File "/home/0dminnimda/.local/lib/python3.8/site-packages/aiohttp/connector.py",line 943,in _wrap_create_connection
raise client_error(req.connection_key,exc) from exc
aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host stackoverflow.com:443 ssl:default [Connect call failed ('151.101.193.69',443)]
Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x7f25a71d1a90>
1-托管上的aiohttp,2-我的计算机上的aiohttp
Name: aiohttp
Version: 3.6.2
Summary: Async http client/server framework (asyncio)
Home-page: https://github.com/aio-libs/aiohttp
Author: Nikolay Kim
Author-email: fafhrd91@gmail.com
License: Apache 2
Location: /home/0dminnimda/.local/lib/python3.8/site-packages
Requires: chardet,async-timeout,multidict,yarl,attrs
Required-by:
Name: aiohttp
Version: 3.6.2
Summary: Async http client/server framework (asyncio)
Home-page: https://github.com/aio-libs/aiohttp
Author: Nikolay Kim
Author-email: fafhrd91@gmail.com
License: Apache 2
Location: c:\users\asus\appdata\roaming\python\python38\site-packages
Requires: async-timeout,attrs,chardet,multidict
Required-by:
我很茫然,不是吗?我正在使用python3.8运行两个文件。
我也尝试了其他网址,它们有相同的问题
我需要添加更多详细信息吗?
解决方法
参考help from the forum,我在创建客户端时添加了trust_env = True
,现在一切正常。这是新代码:
import asyncio
import aiohttp
async def main():
loop = asyncio.get_event_loop()
url = "https://stackoverflow.com/"
async with aiohttp.ClientSession(loop=loop,trust_env=True) as session:
async with session.get(url,timeout=30) as resp:
print(resp.status)
asyncio.run(main())
,
如果您使用带有 python(3.8 或更高版本)和 aiohttp(3.7.4 或更高版本)的 Windows 操作系统
有时,像 ... Cannot connect to host <REQUESTED URL>:443 ssl:default [The parameter is incorrect]
这样的异常的解决方案是:
import sys
...
policy = asyncio.WindowsSelectorEventLoopPolicy()
asyncio.set_event_loop_policy(policy)
asyncio.run(main())
你可以检查你的 Python 版本和操作系统:
import sys
...
if (sys.platform.startswith('win')
and sys.version_info[0] == 3
and sys.version_info[1] >= 8):
policy = asyncio.WindowsSelectorEventLoopPolicy()
asyncio.set_event_loop_policy(policy)
asyncio.run(main())
here,in issue 4536,一切都有更详细的描述。
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。