Python Discord Bot aiohttp.client_exceptions.ClientConnectorSSLError 异常

Posted 2023-03-13

【中文标题】Python Discord Bot aiohttp.client_exceptions.ClientConnectorSSLError 异常

【英文标题】：Python Discord Bot aiohttp.client_exceptions.ClientConnectorSSLError exception

【发布时间】：2020-07-15 19:34:12

【问题描述】：

在 python 3.6.6 上使用此代码：

import discord


client = discord.Client()


@client.event
async def on_ready():
    print('Logged in!')

@client.event
async def on_message(message):
    if message.author == client.user:
        return
    if message.content.startswith('/'):
        await message.channel.send('Got command')

client.run('Njk1*******************************************************')

我最终得到了一个很长的回溯：

Traceback（最近一次调用最后一次）： _wrap_create_connection 中的文件“/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/aiohttp/connector.py”，第 936 行 return await self._loop.create_connection(*args, **kwargs) # type: ignore # noqa 文件“/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/asyncio/base_events.py”，第 804 行，在 create_connection 袜子，协议工厂，ssl，服务器主机名） _create_connection_transport 中的文件“/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/asyncio/base_events.py”，第 830 行 服务员的收益 文件“/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/asyncio/sslproto.py”，第 505 行，在 data_received ssldata，appdata = self._sslpipe.feed_ssldata（数据） 文件“/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/asyncio/sslproto.py”，第 201 行，在 feed_ssldata self._sslobj.do_handshake() 文件“/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/ssl.py”，第 689 行，在 do_handshake self._sslobj.do_handshake() ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] 证书验证失败 (_ssl.c:841)

上述异常是以下异常的直接原因：

Traceback (most recent call last):
  File "/Users/eric/Desktop/ Python_Files/lib/discordbot/discordbot.py", line 21, in <module>
    client.run('Njk1*******************************************************')
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/discord/client.py", line 640, in run
    return future.result()
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/discord/client.py", line 621, in runner
    await self.start(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/discord/client.py", line 584, in start
    await self.login(*args, bot=bot)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/discord/client.py", line 442, in login
    await self.http.static_login(token.strip(), bot=bot)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/discord/http.py", line 261, in static_login
    data = await self.request(Route('GET', '/users/@me'))
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/discord/http.py", line 165, in request
    async with self.__session.request(method, url, **kwargs) as r:
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/aiohttp/client.py", line 1012, in __aenter__
    self._resp = await self._coro
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/aiohttp/client.py", line 483, in _request
    timeout=real_timeout
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/aiohttp/connector.py", line 523, in connect
    proto = await self._create_connection(req, traces, timeout)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/aiohttp/connector.py", line 859, in _create_connection
    req, traces, timeout)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/aiohttp/connector.py", line 1004, in _create_direct_connection
    raise last_exc
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/aiohttp/connector.py", line 986, in _create_direct_connection
    req=req, client_error=client_error)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/aiohttp/connector.py", line 941, in _wrap_create_connection
    raise ClientConnectorSSLError(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorSSLError: Cannot connect to host discordapp.com:443 ssl:default [[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:841)]

谁能帮我解决这个问题？ 这可能是我的系统有问题，因为我在网上搜索了一些其他教程，但没有一个有用，而且我的互联网连接很好。 （我无法对异常的第一部分进行编码，因为它有“太多代码”）

【参考方案1】：

没有安装证书，所以我运行了Install Certificates.command 并修复了证书错误。这是文件内容：

#!/bin/sh

/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6 << "EOF"

# install_certifi.py
#
# sample script to install or update a set of default Root Certificates
# for the ssl module.  Uses the certificates provided by the certifi package:
#       https://pypi.org/project/certifi/

import os
import os.path
import ssl
import stat
import subprocess
import sys

STAT_0o775 = ( stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR
             | stat.S_IRGRP | stat.S_IWGRP | stat.S_IXGRP
             | stat.S_IROTH |                stat.S_IXOTH )

def main():
    openssl_dir, openssl_cafile = os.path.split(
        ssl.get_default_verify_paths().openssl_cafile)

    print(" -- pip install --upgrade certifi")
    subprocess.check_call([sys.executable,
        "-E", "-s", "-m", "pip", "install", "--upgrade", "certifi"])

    import certifi

    # change working directory to the default SSL directory
    os.chdir(openssl_dir)
    relpath_to_certifi_cafile = os.path.relpath(certifi.where())
    print(" -- removing any existing file or link")
    try:
        os.remove(openssl_cafile)
    except FileNotFoundError:
        pass
    print(" -- creating symlink to certifi certificate bundle")
    os.symlink(relpath_to_certifi_cafile, openssl_cafile)
    print(" -- setting permissions")
    os.chmod(openssl_cafile, STAT_0o775)
    print(" -- update complete")

if __name__ == '__main__':
    main()
EOF

【讨论】：

哇！太感谢了！但我想知道最初是什么原因造成的？

这是因为默认的python安装不包括实际获得握手+与discord api连接所需的证书