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 = []
-    author: Union[discord.User, discord.Member]
+    attachments = components = reactions = stickers = []
     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/gateway.py

@@ -153,38 +153,38 @@ class GatewayRatelimiter:
                 await asyncio.sleep(delta)
 
 
-class KeepAliveHandler:
-    def __init__(self, *, ws: DiscordWebSocket, shard_id: int = None, interval: float = None) -> None:
+class KeepAliveHandler(threading.Thread):
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
+        ws = kwargs.pop("ws")
+        interval = kwargs.pop("interval", None)
+        shard_id = kwargs.pop("shard_id", None)
+        threading.Thread.__init__(self, *args, **kwargs)
         self.ws: DiscordWebSocket = ws
-        self.shard_id: Optional[int] = shard_id
+        self._main_thread_id: int = ws.thread_id
         self.interval: Optional[float] = interval
-        self.heartbeat_timeout: float = self.ws._max_heartbeat_timeout
-
+        self.daemon: bool = True
+        self.shard_id: Optional[int] = shard_id
         self.msg: str = "Keeping shard ID %s websocket alive with sequence %s."
         self.block_msg: str = "Shard ID %s heartbeat blocked for more than %s seconds."
         self.behind_msg: str = "Can't keep up, shard ID %s websocket is %.1fs behind."
-        self._stop_ev: asyncio.Event = asyncio.Event()
+        self._stop_ev: threading.Event = threading.Event()
+        self._last_ack: float = time.perf_counter()
         self._last_send: float = time.perf_counter()
         self._last_recv: float = time.perf_counter()
-        self._last_ack: float = time.perf_counter()
         self.latency: float = float("inf")
+        self.heartbeat_timeout: float = ws._max_heartbeat_timeout
 
-    async def run(self) -> None:
-        while True:
-            try:
-                await asyncio.wait_for(self._stop_ev.wait(), timeout=self.interval)
-            except asyncio.TimeoutError:
-                pass
-            else:
-                return
-
+    def run(self) -> None:
+        while not self._stop_ev.wait(self.interval):
             if self._last_recv + self.heartbeat_timeout < time.perf_counter():
                 _log.warning(
                     "Shard ID %s has stopped responding to the gateway. Closing and restarting.", self.shard_id
                 )
+                coro = self.ws.close(4000)
+                f = asyncio.run_coroutine_threadsafe(coro, loop=self.ws.loop)
 
                 try:
-                    await self.ws.close(4000)
+                    f.result()
                 except Exception:
                     _log.exception("An error occurred while stopping the gateway. Ignoring.")
                 finally:
@@ -193,18 +193,24 @@ class KeepAliveHandler:
 
             data = self.get_payload()
             _log.debug(self.msg, self.shard_id, data["d"])
+            coro = self.ws.send_heartbeat(data)
+            f = asyncio.run_coroutine_threadsafe(coro, loop=self.ws.loop)
             try:
                 # block until sending is complete
                 total = 0
                 while True:
                     try:
-                        await asyncio.wait_for(self.ws.send_heartbeat(data), timeout=10)
+                        f.result(10)
                         break
-                    except asyncio.TimeoutError:
+                    except concurrent.futures.TimeoutError:
                         total += 10
-
-                        stack = "".join(traceback.format_stack())
-                        msg = f"{self.block_msg}\nLoop traceback (most recent call last):\n{stack}"
+                        try:
+                            frame = sys._current_frames()[self._main_thread_id]
+                        except KeyError:
+                            msg = self.block_msg
+                        else:
+                            stack = "".join(traceback.format_stack(frame))
+                            msg = f"{self.block_msg}\nLoop thread traceback (most recent call last):\n{stack}"
                         _log.warning(msg, self.shard_id, total)
 
             except Exception:
@@ -219,10 +225,6 @@ class KeepAliveHandler:
             "d": self.ws.sequence,  # type: ignore
         }
 
-
-    def start(self) -> None:
-        self.ws.loop.create_task(self.run())
-
     def stop(self) -> None:
         self._stop_ev.set()
 

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",