安装Telethon后导入触发TypeError错误，请求解决方法

已执行pip install telethon命令安装Telethon，安装日志显示Telethon及相关依赖均已满足，但运行以下代码：

import telethon 
print(telethon.__version__)

时触发如下错误：

Traceback (most recent call last):
  File "/home/kali/Desktop/testtelethone", line 1, in <module>
    import telethon 
  File "/home/kali/.local/lib/python3.9/site-packages/telethon/__init__.py", line 1, in <module>
    from .client.telegramclient import TelegramClient
  File "/home/kali/.local/lib/python3.9/site-packages/telethon/client/__init__.py", line 21, in <module>
    from .downloads import DownloadMethods
  File "/home/kali/.local/lib/python3.9/site-packages/telethon/client/downloads.py", line 16, in <module>
    import aiohttp
  File "/usr/lib/python3/dist-packages/aiohttp/__init__.py", line 6, in <module>
    from .client import BaseConnector as BaseConnector
  File "/usr/lib/python3/dist-packages/aiohttp/client.py", line 32, in <module>
    from . import hdrs, http, payload
  File "/usr/lib/python3/dist-packages/aiohttp/http.py", line 7, in <module>
    from .http_parser import HeadersParser as HeadersParser
  File "/usr/lib/python3/dist-packages/aiohttp/http_parser.py", line 15, in <module>
    from .helpers import NO_EXTENSIONS, BaseTimerContext
  File "/usr/lib/python3/dist-packages/aiohttp/helpers.py", line 607, in <module>
    class CeilTimeout(async_timeout.timeout):
TypeError: function() argument 'code' must be code, not str

推测是Python未正确识别相关组件，求解决方法。

解决方法 #

这个错误源于系统自带的aiohttp（路径为/usr/lib/python3/dist-packages）与async_timeout版本不兼容，和pip安装的依赖产生冲突，可按以下步骤解决：

• 卸载系统自带的冲突包：

  sudo apt remove python3-aiohttp python3-async-timeout
  

• 用pip重新安装兼容版本的依赖：

  pip install --upgrade aiohttp async-timeout telethon
  

• 若上述方法无效，使用虚拟环境隔离依赖：

  # 创建虚拟环境
  python3 -m venv telethon_env
  # 激活虚拟环境
  source telethon_env/bin/activate
  # 在虚拟环境中安装Telethon
  pip install telethon
  

  激活虚拟环境后运行你的代码即可。

内容的提问来源于stack exchange，提问作者M.Mashreghi