use typing_extensions module for python < 3.11

dev-requirements.txt

@@ -2,3 +2,5 @@ flake8 == 7.0.0
 mypy == 1.9.0
 pyinstaller == 6.3.0
 watchdog == 4.0.0
+
+typing_extensions >= 4.10.0; python_version < '3.11.0'

relay/config.py

@@ -13,7 +13,13 @@ from platformdirs import user_config_dir
 from .misc import IS_DOCKER
 
 if typing.TYPE_CHECKING:
-	from typing import Any, Self
+	from typing import Any
+
+	try:
+		from typing import Self
+
+	except ImportError:
+		from typing_extensions import Self
 
 
 if platform.system() == 'Windows':

relay/database/config.py

@@ -10,7 +10,13 @@ from ..misc import boolean
 if typing.TYPE_CHECKING:
 	from bsql import Row
 	from collections.abc import Callable, Sequence
-	from typing import Any, Self
+	from typing import Any
+
+	try:
+		from typing import Self
+
+	except ImportError:
+		from typing_extensions import Self
 
 
 THEMES = {

relay/logger.py

@@ -9,7 +9,13 @@ from pathlib import Path
 
 if typing.TYPE_CHECKING:
 	from collections.abc import Callable
-	from typing import Any, Self
+	from typing import Any
+
+	try:
+		from typing import Self
+
+	except ImportError:
+		from typing_extensions import Self
 
 
 class LogLevel(IntEnum):

relay/misc.py

@@ -18,9 +18,15 @@ except ImportError:
 	from importlib_resources import files as pkgfiles # type: ignore
 
 if typing.TYPE_CHECKING:
-	from typing import Any, Self
+	from typing import Any
 	from .application import Application
 
+	try:
+		from typing import Self
+
+	except ImportError:
+		from typing_extensions import Self
+
 
 T = typing.TypeVar('T')
 ResponseType = typing.TypedDict('ResponseType', {

relay/views/base.py

@@ -16,13 +16,19 @@ if typing.TYPE_CHECKING:
 	from aiohttp.web import Request
 	from collections.abc import Callable, Generator, Sequence, Mapping
 	from bsql import Database
-	from typing import Any, Self
+	from typing import Any
 	from ..application import Application
 	from ..cache import Cache
 	from ..config import Config
 	from ..http_client import HttpClient
 	from ..template import Template
 
+	try:
+		from typing import Self
+
+	except ImportError:
+		from typing_extensions import Self
+
 
 VIEWS: list[tuple[str, type[View]]] = []