Upgrade syntax after dropping Python 3.8

https://docs.astral.sh/ruff/rules/#pyupgrade-up

fastenv/dotenv.py

@@ -2,14 +2,15 @@
 
 import os
 import shlex
-from typing import TYPE_CHECKING, MutableMapping
+from collections.abc import MutableMapping
+from typing import TYPE_CHECKING
 
 import anyio
 
 from fastenv.utilities import logger
 
 if TYPE_CHECKING:
-    from typing import Iterator
+    from collections.abc import Iterator
 
 
 class DotEnv(MutableMapping[str, str]):
@@ -82,7 +83,7 @@ def _parse_args_to_set(self, *args: str) -> tuple[tuple[str, str], ...]:
         return tuple(
             (split_arg[0].strip(" \n\"'").upper(), split_arg[1].strip(" \n\"'"))
             for a in parsed_args
-            if len((split_arg := a.split(sep="=", maxsplit=1))) == 2
+            if len(split_arg := a.split(sep="=", maxsplit=1)) == 2
         )
 
     def _parse_kwargs(self, **kwargs: str) -> dict[str, str]:

fastenv/types.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, Dict, List, TypedDict, Union
+from typing import TYPE_CHECKING, TypedDict, Union
 
 if TYPE_CHECKING:
     import sys
@@ -10,7 +10,7 @@
     else:
         from typing import TypeAlias
 
-UploadPolicyConditions: TypeAlias = List[Union[Dict[str, str], List[Union[str, int]]]]
+UploadPolicyConditions: TypeAlias = list[Union[dict[str, str], list[Union[str, int]]]]
 
 
 class UploadPolicy(TypedDict):

pyproject.toml

@@ -131,7 +131,7 @@ src = ["fastenv", "tests"]
 docstring-code-format = true
 
 [tool.ruff.lint]
-extend-select = ["I"]
+extend-select = ["I", "UP"]
 
 [tool.ruff.lint.isort]
 known-first-party = ["fastenv", "tests"]

tests/test_dotenv.py

@@ -9,7 +9,8 @@
 import fastenv.dotenv
 
 if TYPE_CHECKING:
-    from typing import Any, MutableMapping
+    from collections.abc import MutableMapping
+    from typing import Any
 
     from pytest_mock import MockerFixture
 

tests/test_fastapi.py

@@ -1,8 +1,9 @@
 from __future__ import annotations
 
 import os
+from collections.abc import AsyncGenerator, AsyncIterator
 from contextlib import asynccontextmanager
-from typing import AsyncGenerator, AsyncIterator, Dict, TypedDict
+from typing import TypedDict
 
 import pytest
 from anyio import Path
@@ -33,7 +34,7 @@ async def lifespan(_: FastAPI) -> AsyncIterator[LifespanState]:
 
 
 @app.get("/settings")
-async def get_settings(request: Request) -> Dict[str, str]:
+async def get_settings(request: Request) -> dict[str, str]:
     settings = request.state.settings
     return dict(settings)