导入 discord.py 导致的 TypeError

Question

我刚刚安装了 discord.py rewrite 分支，但尝试使用 import discord 或 from discord.ext import commands 只会导致 TypeError。

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.6/site-packages/discord/__init__.py", line 20, in <module>
    from .client import Client, AppInfo
  File "/usr/local/lib/python3.6/site-packages/discord/client.py", line 30, in <module>
    from .guild import Guild
  File "/usr/local/lib/python3.6/site-packages/discord/guild.py", line 39, in <module>
    from .channel import *
  File "/usr/local/lib/python3.6/site-packages/discord/channel.py", line 31, in <module>
    from .webhook import Webhook
  File "/usr/local/lib/python3.6/site-packages/discord/webhook.py", line 27, in <module>
    import aiohttp
  File "/usr/local/lib/python3.6/site-packages/aiohttp/__init__.py", line 6, in <module>
    from .client import *  # noqa
  File "/usr/local/lib/python3.6/site-packages/aiohttp/client.py", line 15, in <module>
    from . import connector as connector_mod
  File "/usr/local/lib/python3.6/site-packages/aiohttp/connector.py", line 17, in <module>
    from .client_proto import ResponseHandler
  File "/usr/local/lib/python3.6/site-packages/aiohttp/client_proto.py", line 6, in <module>
    from .http import HttpResponseParser, StreamWriter
  File "/usr/local/lib/python3.6/site-packages/aiohttp/http.py", line 8, in <module>
    from .http_parser import (HttpParser, HttpRequestParser, HttpResponseParser,
  File "/usr/local/lib/python3.6/site-packages/aiohttp/http_parser.py", line 15, in <module>
    from .http_writer import HttpVersion, HttpVersion10
  File "/usr/local/lib/python3.6/site-packages/aiohttp/http_writer.py", line 304, in <module>
    class URL(yarl.URL):
  File "/usr/local/lib/python3.6/site-packages/yarl/__init__.py", line 232, in __init_subclass__
    "is forbidden".format(cls))
TypeError: Inheritance a class <class 'aiohttp.http_writer.URL'> from URL is forbidden

虽然从技术上讲该错误来自 yarl 而不是 discord.py 本身，但该错误仅在尝试导入模块时发生。

我已经尝试过重新安装 python 以及 discord.py rewrite 分支，如果在 RPi 3 B+ 上运行有什么不同

Answer 1

我尝试在我的 python 3.7 上安装 discord.py，但没有成功。

我必须安装 python 3.6.6 才能使其工作，也许你正在使用 python 3.7，如果是这样你应该尝试回滚到 python 3.6.6

Answer 2

您的 aiohttp 包可能已过期。

试试

pip install --upgrade aiohttp