old_contents: from django.conf import settings
  from django.db.models import Sum
  from django.db.models.signals import post_save
  
  from .models import GuestbookEntry
  
  import badger
  import badger.utils
  from badger.utils import get_badge, award_badge, get_progress
  from badger.models import Badge, Award, Progress
  from badger.signals import badge_was_awarded
  
  
  badges = [
  
      dict(slug="test-2",
           title="Test #2",
           description="Second badge"),
  
      dict(slug="awesomeness",
           title="Awesomeness (you have it)",
           description="Badge with a slug not derived from title."),
  
      dict(slug="250-words",
           title="250 Words",
           description="You've posted 250 words to my guestbook!"),
  
      dict(slug="250-words-by-percent",
           title="100% of 250 Words",
           description="You've posted 100% of 250 words to my guestbook!"),
  
  ]
  
  
  def update_badges(overwrite=False):
      badges = [
          dict(slug="master-badger",
               title="Master Badger",
               description="You've collected all badges",
               prerequisites=('test-1', 'test-2', 'awesomeness',
                              'button-clicker')),
      ]
  
      return badger.utils.update_badges(badges, overwrite)
  
  
  def on_guestbook_post(sender, **kwargs):
      o = kwargs['instance']
      created = kwargs['created']
  
      if created:
          award_badge('first-post', o.creator)
  
      # Increment progress counter and track the completion condition ourselves.
      b = get_badge('250-words')
      p = b.progress_for(o.creator).increment_by(o.word_count)
      if p.counter >= 250:
          b.award_to(o.creator)
  
      # Update percentage from total word count, and Progress will award on 100%
      total_word_count = (GuestbookEntry.objects.filter(creator=o.creator)
                          .aggregate(s=Sum('word_count'))['s'])
      (get_progress("250-words-by-percent", o.creator)
             .update_percent(total_word_count, 250))
  
  
  def on_badge_award(sender, signal, award):
      pass
  
  
  def register_signals():
      post_save.connect(on_guestbook_post, sender=GuestbookEntry)
      badge_was_awarded.connect(on_badge_award, sender=Badge)
  
new_contents: from django.conf import settings
  from django.db.models import Sum
  from django.db.models.signals import post_save
  
  from .models import GuestbookEntry
  
  import badger
  import badger.utils
  from badger.utils import get_badge, award_badge, get_progress
  from badger.models import Badge, Award, Progress
  from badger.signals import badge_was_awarded
  
  
  badges = [
  
      dict(slug="test-2",
           title="Test #2",
           description="Second badge"),
  
      dict(slug="awesomeness",
           title="Awesomeness (you have it)",
           description="Badge with a slug not derived from title."),
  
      dict(slug="250-words",
           title="250 Words",
           description="You've posted 250 words to my guestbook!"),
  
      dict(slug="250-words-by-percent",
           title="100% of 250 Words",
           description="You've posted 100% of 250 words to my guestbook!"),
  
  ]
  
  
  def update_badges(overwrite=False):
      badges = [
          dict(slug="master-badger",
               title="Master Badger",
               description="You've collected all badges",
               prerequisites=('test-1', 'test-2', 'awesomeness',
                              'button-clicker')),
      ]
  
      return badger.utils.update_badges(badges, overwrite)
  
  
  def on_guestbook_post(sender, **kwargs):
      o = kwargs['instance']
      created = kwargs['created']
  
      if created:
          award_badge('first-post', o.creator)
  
      # Increment progress counter and track the completion condition ourselves.
      b = get_badge('250-words')
      p = b.progress_for(o.creator).increment_by(o.word_count)
      if p.counter >= 250:
          b.award_to(o.creator)
  
      # Update percentage from total word count, and Progress will award on 100%
      total_word_count = (GuestbookEntry.objects.filter(creator=o.creator)
                          .aggregate(s=Sum('word_count'))['s'])
      (get_progress("250-words-by-percent", o.creator)
             .update_percent(total_word_count, 250))
  
  
  def on_badge_award(sender, signal, award, **kwargs):
      pass
  
  
  def register_signals():
      post_save.connect(on_guestbook_post, sender=GuestbookEntry)
      badge_was_awarded.connect(on_badge_award, sender=Badge)
  
subject: Fix AssertionError; signal receivers must have **kwargs