from django.core.management.base import BaseCommand

class Command(BaseCommand):

    def add_arguments(self, parser):

        subparsers = parser.add_subparsers()

        parser_foo = subparsers.add_parser("foo")

        parser_foo.add_argument("bar", type=int)

    def handle(self, *args, **options):

        self.stdout.write(",".join(options))