🐛 fix import error for extra dependencies

nonebot/drivers/__init__.py

@@ -252,7 +252,7 @@ class ReverseDriver(Driver):
 
 
 def combine_driver(driver: Type[Driver], *mixins: Type[ForwardMixin]) -> Type[Driver]:
-    class CombinedDriver(driver, *mixins):  # type: ignore
+    class CombinedDriver(driver, *mixins, ForwardDriver):  # type: ignore
         @property
         def type(self) -> str:
             return (

nonebot/drivers/aiohttp.py

@@ -5,15 +5,19 @@ AIOHTTP 驱动适配
 本驱动仅支持客户端连接
 """
 
-
-import aiohttp
-
 from nonebot.typing import overrides
 from nonebot.drivers import Request, Response
 from nonebot.drivers._block_driver import BlockDriver
 from nonebot.drivers import WebSocket as BaseWebSocket
 from nonebot.drivers import HTTPVersion, ForwardMixin, combine_driver
 
+try:
+    import aiohttp
+except ImportError:
+    raise ImportError(
+        "Please install aiohttp first to use this driver. `pip install nonebot2[aiohttp]`"
+    ) from None
+
 
 class AiohttpMixin(ForwardMixin):
     @property

nonebot/drivers/fastapi.py

@@ -23,7 +23,6 @@ from nonebot.config import Env
 from nonebot.typing import overrides
 from nonebot.utils import escape_tag
 from nonebot.drivers.httpx import HttpxMixin
-from nonebot.drivers.aiohttp import AiohttpMixin
 from nonebot.config import Config as NoneBotConfig
 from nonebot.drivers import Request as BaseRequest
 from nonebot.drivers import WebSocket as BaseWebSocket
@@ -35,6 +34,11 @@ from nonebot.drivers import (
     combine_driver,
 )
 
+try:
+    from nonebot.drivers.aiohttp import AiohttpMixin
+except ImportError:
+    AiohttpMixin = None
+
 
 class Config(BaseSettings):
     """
@@ -316,4 +320,5 @@ class FastAPIWebSocket(BaseWebSocket):
 
 
 FullDriver = combine_driver(Driver, HttpxMixin, WebSocketsMixin)
-AiohttpDriver = combine_driver(Driver, AiohttpMixin)
+if AiohttpMixin:
+    AiohttpDriver = combine_driver(Driver, AiohttpMixin)