💥 remove Python 3.7 support (#1148)

nonebot/internal/adapter/bot.py

@@ -1,8 +1,7 @@
 import abc
 import asyncio
 from functools import partial
-from typing_extensions import Protocol
-from typing import TYPE_CHECKING, Any, Set, Union, Optional
+from typing import TYPE_CHECKING, Any, Set, Union, Optional, Protocol
 
 from nonebot.log import logger
 from nonebot.config import Config
@@ -72,8 +71,7 @@ class Bot(abc.ABC):
         skip_calling_api: bool = False
         exception: Optional[Exception] = None
 
-        coros = list(map(lambda x: x(self, api, data), self._calling_api_hook))
-        if coros:
+        if coros := [hook(self, api, data) for hook in self._calling_api_hook]:
             try:
                 logger.debug("Running CallingAPI hooks...")
                 await asyncio.gather(*coros)
@@ -95,10 +93,9 @@ class Bot(abc.ABC):
             except Exception as e:
                 exception = e
 
-        coros = list(
-            map(lambda x: x(self, exception, api, data, result), self._called_api_hook)
-        )
-        if coros:
+        if coros := [
+            hook(self, exception, api, data, result) for hook in self._called_api_hook
+        ]:
             try:
                 logger.debug("Running CalledAPI hooks...")
                 await asyncio.gather(*coros)

nonebot/internal/driver/driver.py

@@ -233,13 +233,11 @@ def combine_driver(driver: Type[Driver], *mixins: Type[ForwardMixin]) -> Type[Dr
     if not mixins:
         return driver
 
-    class CombinedDriver(*mixins, driver, ForwardDriver):  # type: ignore
-        @property
-        def type(self) -> str:
-            return (
-                driver.type.__get__(self)
-                + "+"
-                + "+".join(map(lambda x: x.type.__get__(self), mixins))
-            )
+    def type_(self: ForwardDriver) -> str:
+        return (
+            driver.type.__get__(self)
+            + "+"
+            + "+".join(map(lambda x: x.type.__get__(self), mixins))
+        )
 
-    return CombinedDriver
+    return type("CombinedDriver", (*mixins, driver, ForwardDriver), {"type": property(type_)})  # type: ignore

nonebot/internal/matcher.py

@@ -14,6 +14,7 @@ from typing import (
     Callable,
     NoReturn,
     Optional,
+    overload,
 )
 
 from nonebot.log import logger
@@ -551,7 +552,17 @@ class Matcher(metaclass=MatcherMeta):
         """
         raise SkippedException
 
-    def get_receive(self, id: str, default: T = None) -> Union[Event, T]:
+    @overload
+    def get_receive(self, id: str) -> Union[Event, None]:
+        ...
+
+    @overload
+    def get_receive(self, id: str, default: T) -> Union[Event, T]:
+        ...
+
+    def get_receive(
+        self, id: str, default: Optional[T] = None
+    ) -> Optional[Union[Event, T]]:
         """获取一个 `receive` 事件
 
         如果没有找到对应的事件，返回 `default` 值
@@ -563,14 +574,34 @@ class Matcher(metaclass=MatcherMeta):
         self.state[RECEIVE_KEY.format(id=id)] = event
         self.state[LAST_RECEIVE_KEY] = event
 
-    def get_last_receive(self, default: T = None) -> Union[Event, T]:
+    @overload
+    def get_last_receive(self) -> Union[Event, None]:
+        ...
+
+    @overload
+    def get_last_receive(self, default: T) -> Union[Event, T]:
+        ...
+
+    def get_last_receive(
+        self, default: Optional[T] = None
+    ) -> Optional[Union[Event, T]]:
         """获取最近一次 `receive` 事件
 
         如果没有事件，返回 `default` 值
         """
         return self.state.get(LAST_RECEIVE_KEY, default)
 
-    def get_arg(self, key: str, default: T = None) -> Union[Message, T]:
+    @overload
+    def get_arg(self, key: str) -> Union[Message, None]:
+        ...
+
+    @overload
+    def get_arg(self, key: str, default: T) -> Union[Message, T]:
+        ...
+
+    def get_arg(
+        self, key: str, default: Optional[T] = None
+    ) -> Optional[Union[Message, T]]:
         """获取一个 `got` 消息
 
         如果没有找到对应的消息，返回 `default` 值
@@ -587,7 +618,15 @@ class Matcher(metaclass=MatcherMeta):
         else:
             self.state[REJECT_TARGET] = target
 
-    def get_target(self, default: T = None) -> Union[str, T]:
+    @overload
+    def get_target(self) -> Union[str, None]:
+        ...
+
+    @overload
+    def get_target(self, default: T) -> Union[str, T]:
+        ...
+
+    def get_target(self, default: Optional[T] = None) -> Optional[Union[str, T]]:
         return self.state.get(REJECT_TARGET, default)
 
     def stop_propagation(self):

nonebot/internal/params.py

@@ -1,8 +1,7 @@
 import asyncio
 import inspect
 import warnings
-from typing_extensions import Literal
-from typing import TYPE_CHECKING, Any, Callable, Optional, cast
+from typing import TYPE_CHECKING, Any, Literal, Callable, Optional, cast
 from contextlib import AsyncExitStack, contextmanager, asynccontextmanager
 
 from pydantic.fields import Required, Undefined, ModelField

nonebot/internal/permission.py

@@ -37,14 +37,14 @@ class Permission:
     ]
 
     def __init__(self, *checkers: Union[T_PermissionChecker, Dependent[bool]]) -> None:
-        self.checkers: Set[Dependent[bool]] = set(
+        self.checkers: Set[Dependent[bool]] = {
             checker
             if isinstance(checker, Dependent)
             else Dependent[bool].parse(
                 call=checker, allow_types=self.HANDLER_PARAM_TYPES
             )
             for checker in checkers
-        )
+        }
         """存储 `PermissionChecker`"""
 
     async def __call__(

nonebot/internal/rule.py

@@ -37,14 +37,14 @@ class Rule:
     ]
 
     def __init__(self, *checkers: Union[T_RuleChecker, Dependent[bool]]) -> None:
-        self.checkers: Set[Dependent[bool]] = set(
+        self.checkers: Set[Dependent[bool]] = {
             checker
             if isinstance(checker, Dependent)
             else Dependent[bool].parse(
                 call=checker, allow_types=self.HANDLER_PARAM_TYPES
             )
             for checker in checkers
-        )
+        }
         """存储 `RuleChecker`"""
 
     async def __call__(