stop django command using sys.exit()

Question

Hi I have a problem with the django commands the thing is I need to stop the command if some condition happen, normally in python script I do this using sys.exit() because I don't want the script still doing things I try this with Django and doesn't work there is another way to stop the command running ?

Health and good things.

Answer 1

from the docs:

from django.core.management.base import BaseCommand, CommandError
from polls.models import Poll

class Command(BaseCommand):
    help = 'Closes the specified poll for voting'

    def add_arguments(self, parser):
        parser.add_argument('poll_id', nargs='+', type=int)

    def handle(self, *args, **options):
        for poll_id in options['poll_id']:
            try:
                poll = Poll.objects.get(pk=poll_id)
            except Poll.DoesNotExist:
                raise CommandError('Poll "%s" does not exist' % poll_id)

            poll.opened = False
            poll.save()

            self.stdout.write(self.style.SUCCESS('Successfully closed poll "%s"' % poll_id))

i.e. you should raise a CommandError

though sys.exit generally ought to work fine too (I mean, you said it didn't for you - if it was me I'd be curious to work out why not anyway)