File: mutually_exclusive_required_with_same_dest.py

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from django.core.management.base import BaseCommand


class Command(BaseCommand):
    def add_arguments(self, parser):
        group = parser.add_mutually_exclusive_group(required=True)
        group.add_argument("--for", dest="until", action="store")
        group.add_argument("--until", action="store")

    def handle(self, *args, **options):
        for option, value in options.items():
            if value is not None:
                self.stdout.write("%s=%s" % (option, value))