old_contents: from optparse import make_option
  import datetime
  from django.core.management.base import BaseCommand
  
  
  class Command(BaseCommand):
      args = 'days'
      help = 'Clean carts older than 7 days'
      option_list = BaseCommand.option_list + (
          make_option('--days',
                      action='store',
                      dest='days',
                      default=7,
                      help='Remove carts modified before specified number of days'),
      )
  
      def handle(self, *args, **options):
          """
          """
          from lfs.cart.models import Cart
          days = int(options['days'])
          today = datetime.date.today()
          dt = today - datetime.timedelta(days=days)
          qs = Cart.objects.filter(modification_date__lt=dt)
          carts_count = qs.count()
          qs.delete()
          print "Removed %s carts" % carts_count
  
new_contents: import datetime
  from django.core.management.base import BaseCommand
  
  
  class Command(BaseCommand):
      help = 'Clean carts older than 7 days'
  
      def add_arguments(self, parser):
          parser.add_argument(
              '--days',
              action='store',
              dest='days',
              default=7,
              help="Remove carts modified before specified number of days",
          )
  
      def handle(self, *args, **options):
          """
          """
          from lfs.cart.models import Cart
          days = int(options['days'])
          today = datetime.date.today()
          dt = today - datetime.timedelta(days=days)
          qs = Cart.objects.filter(modification_date__lt=dt)
          carts_count = qs.count()
          qs.delete()
          print "Removed %s carts" % carts_count
  
subject: fix cleanup_carts command