Clean spam from comments by running management command and akismet

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from akismet import Akismet
from django.core.management.base import BaseCommand
from django.conf import settings
from django.contrib.sites.models import Site
from django.contrib.comments.models import Comment



class Command(BaseCommand):
    args = "<date> in format dd.mm.yyyy"
    help = "Sends daily email repot about intranet changes"

    def handle(self, *args, **options):
        akismet = Akismet(key=settings.SPAMINSPECTOR_AKISMET_KEY,
                          blog_url="http://%s/" % Site.objects.get(pk=settings.SITE_ID).domain)
        if not akismet.verify_key():
            raise ValueError('no key set')

        for comment in Comment.objects.all():
            data = {
            'user_ip': comment.ip_address,
            'user_agent': '',
            'referrer': '',
            'comment_type': 'comment',
            'comment_author': comment.user_name.encode('utf-8'),
            'comment_email': comment.user_email.encode('utf-8'),
            'comment_url': comment.user_url.encode('utf-8'),
            }
            if akismet.comment_check(comment.comment.encode('utf-8'), data, build_data=True):
                 comment.delete()