Concept to adding many ActiveDirectory/LDAP accounts to ReviewBoard

rb_site_addldapfilter.py

#
# Setup django environmet
#
from django.core.management import setup_environ
import reviewboard.settings
setup_environ(reviewboard.settings)

#
# Load Review Board instance configuration
#
# @note This part extends settings from django.conf
# on Review Board specific attributes
#
from reviewboard.admin import siteconfig
siteconfig.load_site_config()

#
# Load Django configuration
#
from django.conf import settings

from django.contrib.auth.models import User
from django.contrib.auth.models import Group


def add_many_users_by_ldap_filter(filter):
        users = activedirectory.search_s(self.base_dn, ldap.SCOPE_SUBTREE, filter)
        for user in users:
            user_info = user[1]
            username = user_info.get('username', '')[0]

            try:
                User.objects.get(username=username)
            except User.DoesNotExist:
                first_name = user_info.get('givenName', [username])[0]
                last_name = user_info.get('sn', [""])[0]
                if settings.LDAP_EMAIL_DOMAIN:
                    email = u'%s@%s' % (username, settings.LDAP_EMAIL_DOMAIN)
                elif settings.LDAP_EMAIL_ATTRIBUTE:
                    email = user_info[settings.LDAP_EMAIL_ATTRIBUTE][0]

                user = User(username=username, password='',
                            first_name=first_name,
                            last_name=last_name,
                            email=email)
                user.is_staff = False
                user.is_superuser = False
                user.set_unusable_password()
                user.save()

A naive question. How to use this code? Is this to be run directly as a python script or from within Reviewboard somehow?