[MIG] session_redis: Migration to 18.0

session_redis/strtobool.py

@@ -15,7 +15,9 @@ _MAP = {
 
 
 def strtobool(value):
-    try:
-        return _MAP[str(value).lower()]
-    except KeyError as error:
-        raise ValueError(f'"{value}" is not a valid bool value') from error
+    result = _MAP.get(str(value).strip().lower())
+
+    if result is None:
+        raise ValueError(f"Invalid boolean value: {repr(value)}")
+
+    return result