Improve interpreter exit-related logic

core/models/Configuration.py

@@ -9,6 +9,7 @@ from zoneinfo import ZoneInfo
 import dataclasses_json
 import json
 import os
+import sys
 
 
 @dataclass_json
@@ -69,7 +70,7 @@ class Configuration:
         try:
             configuration = json.loads(config_file_contents)
         except JSONDecodeError:
-            exit(1)
+            sys.exit(1)
 
         # noinspection PyUnresolvedReferences
         configuration = Configuration.from_dict(configuration)