'required' as argument is only available with python 3.7 and later
parser.add_argument(
"--formatted", action="store_true", help="Output formatted JSON data."
)
parser.add_argument(
"--formatted", action="store_true", help="Output formatted JSON data."
)
- subparsers = parser.add_subparsers(dest="action", required=True)
+ subparsers = parser.add_subparsers(dest="action")
+ subparsers.required = True
parser_merge = subparsers.add_parser(
"merge",
parser_merge = subparsers.add_parser(
"merge",