feat: remove async_timeout dependency (#218)

pyproject.toml

@@ -28,7 +28,6 @@ script = "build_ext.py"
 
 [tool.poetry.dependencies]
 python = "^3.7"
-async-timeout = {version = ">=3.0.0", python = "<3.11"}
 
 # duplicated in docs/requirements.txt for readthedocs compatibility
 [tool.poetry.group.docs.dependencies]

src/dbus_fast/aio/message_bus.py

@@ -2,16 +2,10 @@
 import asyncio
 import logging
 import socket
-import sys
 from collections import deque
 from copy import copy
 from typing import Any, Optional
 
-if sys.version_info[:2] < (3, 11):
-    from async_timeout import timeout as asyncio_timeout
-else:
-    from asyncio import timeout as asyncio_timeout
-
 from .. import introspection as intr
 from ..auth import Authenticator, AuthExternal
 from ..constants import (
@@ -273,8 +267,13 @@ def reply_handler(reply: Any, err: Exception) -> None:
 
         super().introspect(bus_name, path, reply_handler)
 
-        async with asyncio_timeout(timeout):
+        timer_handle = self._loop.call_later(
+            timeout, _future_set_exception, future, asyncio.TimeoutError
+        )
+        try:
             return await future
+        finally:
+            timer_handle.cancel()
 
     async def request_name(
         self, name: str, flags: NameFlag = NameFlag.NONE