Actually block out Python 3.9.7

reference PR https://github.com/iDevision/enhanced-discord.py/pull/93

README.rst

@@ -41,7 +41,9 @@ Key Features
 Installing
 ----------
 
-**Python 3.8 or higher is required**
+**Python 3.8 or higher is required***
+
+***Do not use 3.9.7 as Python 3.9.7 has a bug that causes a TypeError with __init__ methods in subclasses.** View more `here <https://bugs.python.org/issue45121/>`_.
 
 To install the library without full voice support, you can just run the following command:
 

discord/ext/commands/bot.py

@@ -28,6 +28,7 @@ from __future__ import annotations
 import asyncio
 import collections
 import collections.abc
+from functools import cached_property
 
 import inspect
 import importlib.util
@@ -72,7 +73,9 @@ from .cog import Cog
 if TYPE_CHECKING:
     import importlib.machinery
 
+    from discord.role import Role
     from discord.message import Message
+    from discord.abc import PartialMessageableChannel
     from ._types import (
         Check,
         CoroFunc,
@@ -94,10 +97,17 @@ CXT = TypeVar("CXT", bound="Context")
 
 class _FakeSlashMessage(discord.PartialMessage):
     activity = application = edited_at = reference = webhook_id = None
-    attachments = components = reactions = stickers = mentions = []
+    attachments = components = reactions = stickers = []
-    author: Union[discord.User, discord.Member]
     tts = False
 
+    raw_mentions = discord.Message.raw_mentions
+    clean_content = discord.Message.clean_content
+    channel_mentions = discord.Message.channel_mentions
+    raw_role_mentions = discord.Message.raw_role_mentions
+    raw_channel_mentions = discord.Message.raw_channel_mentions
+
+    author: Union[discord.User, discord.Member]
+
     @classmethod
     def from_interaction(
         cls, interaction: discord.Interaction, channel: Union[discord.TextChannel, discord.DMChannel, discord.Thread]
@@ -108,6 +118,22 @@ class _FakeSlashMessage(discord.PartialMessage):
 
         return self
 
+    @cached_property
+    def mentions(self) -> List[Union[discord.Member, discord.User]]:
+        client = self._state._get_client()
+        if self.guild:
+            ensure_user = lambda id: self.guild.get_member(id) or client.get_user(id) # type: ignore
+        else:
+            ensure_user = client.get_user
+
+        return discord.utils._unique(filter(None, map(ensure_user, self.raw_mentions)))
+
+    @cached_property
+    def role_mentions(self) -> List[Role]:
+        if self.guild is None:
+            return []
+        return discord.utils._unique(filter(None, map(self.guild.get_role, self.raw_role_mentions)))
+
 
 def when_mentioned(bot: Union[Bot, AutoShardedBot], msg: Message) -> List[str]:
     """A callable that implements a command prefix equivalent to being mentioned.

discord/http.py

@@ -188,7 +188,7 @@ class HTTPClient:
         self.proxy_auth: Optional[aiohttp.BasicAuth] = proxy_auth
         self.use_clock: bool = not unsync_clock
 
-        user_agent = "DiscordBot (https://github.com/Rapptz/discord.py {0}) Python/{1[0]}.{1[1]} aiohttp/{2}"
+        user_agent = "DiscordBot (https://github.com/iDevision/enhanced-discord.py {0}) Python/{1[0]}.{1[1]} aiohttp/{2}"
         self.user_agent: str = user_agent.format(__version__, sys.version_info, aiohttp.__version__)
 
     def recreate(self) -> None:

setup.py

@@ -70,7 +70,7 @@ setup(
     include_package_data=True,
     install_requires=requirements,
     extras_require=extras_require,
-    python_requires=">=3.8.0",
+    python_requires=">=3.8.0, !=3.9.7",
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "License :: OSI Approved :: MIT License",