refactor: improve backports imports

playout/libretime_playout/recorder.py

@@ -4,6 +4,7 @@ import math
 import os
 import re
 import signal
+import sys
 import time
 from datetime import timezone
 from subprocess import PIPE, Popen
@@ -15,10 +16,10 @@ from loguru import logger
 
 from libretime_playout.config import PUSH_INTERVAL, RECORD_DIR, Config
 
-try:
-    from zoneinfo import ZoneInfo
-except ImportError:
+if sys.version_info < (3, 9):
     from backports.zoneinfo import ZoneInfo
+else:
+    from zoneinfo import ZoneInfo
 
 
 # TODO : add docstrings everywhere in this module

shared/libretime_shared/config/_models.py

@@ -1,3 +1,4 @@
+import sys
 from enum import Enum
 from typing import TYPE_CHECKING, Any, List, Optional, Sequence, Union
 
@@ -5,10 +6,11 @@ from typing import TYPE_CHECKING, Any, List, Optional, Sequence, Union
 from pydantic import AnyHttpUrl, AnyUrl, BaseModel, Field, validator
 from typing_extensions import Annotated, Literal
 
-try:
+if sys.version_info < (3, 9):
+    from backports.zoneinfo import ZoneInfo, ZoneInfoNotFoundError
+else:
     from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
-except ImportError:
-    from backports.zoneinfo import ZoneInfo, ZoneInfoNotFoundError  # type: ignore
+
 
 if TYPE_CHECKING:
     from pydantic.typing import AnyClassMethod