Use iscoroutinefunction from inspect instead of asyncio on 3.12+

discord/ext/commands/bot.py

@@ -25,7 +25,6 @@ DEALINGS IN THE SOFTWARE.
 from __future__ import annotations
 
 
-import asyncio
 import collections
 import collections.abc
 import inspect
@@ -53,7 +52,7 @@ from typing import (
 import discord
 from discord import app_commands
 from discord.app_commands.tree import _retrieve_guild_ids
-from discord.utils import MISSING, _is_submodule
+from discord.utils import MISSING, _iscoroutinefunction, _is_submodule
 
 from .core import GroupMixin
 from .view import StringView
@@ -581,7 +580,7 @@ class BotBase(GroupMixin[None]):
         TypeError
             The coroutine passed is not actually a coroutine.
         """
-        if not asyncio.iscoroutinefunction(coro):
+        if not _iscoroutinefunction(coro):
             raise TypeError('The pre-invoke hook must be a coroutine.')
 
         self._before_invoke = coro
@@ -618,7 +617,7 @@ class BotBase(GroupMixin[None]):
         TypeError
             The coroutine passed is not actually a coroutine.
         """
-        if not asyncio.iscoroutinefunction(coro):
+        if not _iscoroutinefunction(coro):
             raise TypeError('The post-invoke hook must be a coroutine.')
 
         self._after_invoke = coro
@@ -654,7 +653,7 @@ class BotBase(GroupMixin[None]):
         """
         name = func.__name__ if name is MISSING else name
 
-        if not asyncio.iscoroutinefunction(func):
+        if not _iscoroutinefunction(func):
             raise TypeError('Listeners must be coroutines')
 
         if name in self.extra_events:

discord/ext/commands/cog.py

@@ -28,7 +28,7 @@ import inspect
 import discord
 import logging
 from discord import app_commands
-from discord.utils import maybe_coroutine, _to_kebab_case
+from discord.utils import maybe_coroutine, _iscoroutinefunction, _to_kebab_case
 
 from typing import (
     Any,
@@ -233,7 +233,7 @@ class CogMeta(type):
                     if elem.startswith(('cog_', 'bot_')):
                         raise TypeError(no_bot_cog.format(base, elem))
                     cog_app_commands[elem] = value
-                elif inspect.iscoroutinefunction(value):
+                elif _iscoroutinefunction(value):
                     try:
                         getattr(value, '__cog_listener__')
                     except AttributeError:
@@ -522,7 +522,7 @@ class Cog(metaclass=CogMeta):
             actual = func
             if isinstance(actual, staticmethod):
                 actual = actual.__func__
-            if not inspect.iscoroutinefunction(actual):
+            if not _iscoroutinefunction(actual):
                 raise TypeError('Listener function must be a coroutine function.')
             actual.__cog_listener__ = True
             to_assign = name or actual.__name__

discord/ext/commands/core.py

@@ -427,7 +427,7 @@ class Command(_BaseCommand, Generic[CogT, P, T]):
         /,
         **kwargs: Unpack[_CommandKwargs],
     ) -> None:
-        if not asyncio.iscoroutinefunction(func):
+        if not discord.utils._iscoroutinefunction(func):
             raise TypeError('Callback must be a coroutine.')
 
         name = kwargs.get('name') or func.__name__
@@ -1102,7 +1102,7 @@ class Command(_BaseCommand, Generic[CogT, P, T]):
             The coroutine passed is not actually a coroutine.
         """
 
-        if not asyncio.iscoroutinefunction(coro):
+        if not discord.utils._iscoroutinefunction(coro):
             raise TypeError('The error handler must be a coroutine.')
 
         self.on_error: Error[CogT, Any] = coro
@@ -1140,7 +1140,7 @@ class Command(_BaseCommand, Generic[CogT, P, T]):
         TypeError
             The coroutine passed is not actually a coroutine.
         """
-        if not asyncio.iscoroutinefunction(coro):
+        if not discord.utils._iscoroutinefunction(coro):
             raise TypeError('The pre-invoke hook must be a coroutine.')
 
         self._before_invoke = coro
@@ -1171,7 +1171,7 @@ class Command(_BaseCommand, Generic[CogT, P, T]):
         TypeError
             The coroutine passed is not actually a coroutine.
         """
-        if not asyncio.iscoroutinefunction(coro):
+        if not discord.utils._iscoroutinefunction(coro):
             raise TypeError('The post-invoke hook must be a coroutine.')
 
         self._after_invoke = coro
@@ -1945,7 +1945,7 @@ def check(predicate: UserCheck[ContextT], /) -> Check[ContextT]:
 
         return func
 
-    if inspect.iscoroutinefunction(predicate):
+    if discord.utils._iscoroutinefunction(predicate):
         decorator.predicate = predicate
     else:
 
@@ -2369,7 +2369,7 @@ def guild_only() -> Check[Any]:
 
         return func
 
-    if inspect.iscoroutinefunction(predicate):
+    if discord.utils._iscoroutinefunction(predicate):
         decorator.predicate = predicate
     else:
 
@@ -2444,7 +2444,7 @@ def is_nsfw() -> Check[Any]:
 
         return func
 
-    if inspect.iscoroutinefunction(predicate):
+    if discord.utils._iscoroutinefunction(predicate):
         decorator.predicate = predicate
     else: