text: from __future__ import absolute_import
  
  import datetime
  import pytz
  
  from django.core.management.base import BaseCommand
  from zerver.models import UserProfile, Realm, Stream, Message, get_realm
  
  class Command(BaseCommand):
      help = "Generate statistics on user activity."
  
      def add_arguments(self, parser):
          parser.add_argument('realms', metavar='<realm>', type=str, nargs='*',
                              help="realm to generate statistics for")
  
      def messages_sent_by(self, user, week):
          start = datetime.datetime.now(tz=pytz.utc) - datetime.timedelta(days=(week + 1)*7)
          end = datetime.datetime.now(tz=pytz.utc) - datetime.timedelta(days=week*7)
          return Message.objects.filter(sender=user, pub_date__gt=start, pub_date__lte=end).count()
  
      def handle(self, *args, **options):
          if options['realms']:
              try:
                  realms = [get_realm(domain) for domain in options['realms']]
              except Realm.DoesNotExist, e:
                  print e
                  exit(1)
          else:
              realms = Realm.objects.all()
  
          for realm in realms:
              print realm.domain
              user_profiles = UserProfile.objects.filter(realm=realm, is_active=True)
              print "%d users" % (len(user_profiles),)
              print "%d streams" % (len(Stream.objects.filter(realm=realm)),)
  
              for user_profile in user_profiles:
                  print "%35s" % (user_profile.email,),
                  for week in range(10):
                      print "%5d" % (self.messages_sent_by(user_profile, week)),
                  print ""
  