Config and JSON files by default live in script's dir

mvw-dl.py

@@ -165,7 +165,7 @@ class ConfigParser(
 ini_defaults = []
 internal_defaults = {default["key"]: default["value"] for default in CONST.CFG_KNOWN_DEFAULTS}
 config = ConfigParser(defaults=internal_defaults)
-config.read(CONST.CFG_DEFAULT_FILENAME)
+config.read(CONST.CFG_DEFAULT_ABS_PATH)
 
 
 def print_section_header(
@@ -233,7 +233,8 @@ def validate_config_sections(
 
 def query_string_from_file(
         filename: str) -> str:
-    with open(filename, "r", encoding="utf-8") as jsonfile:
+    filename_abs_path = os.path.join(CONST.CFG_THIS_FILE_DIRNAME, filename)
+    with open(filename_abs_path, "r", encoding="utf-8") as jsonfile:
         query_string = jsonfile.read()
         return query_string