old_contents: class ProgrammingError(Exception):
      """Somebody made a mistake in the code."""
  
  
  # Just importing monkeypatch does the trick - don't remove this line
  from kitsune.sumo import monkeypatch
  
new_contents: class ProgrammingError(Exception):
      """Somebody made a mistake in the code."""
  
  
  # Just importing monkeypatch does the trick - don't remove this line
  from kitsune.sumo import monkeypatch
  
  
  from south.signals import post_migrate
  
  
  # Courtesy of http://devwithpassion.com/felipe/south-django-permissions/
  def update_permissions_after_migration(app, **kwargs):
      """Update app permission just after every migration.
  
      This is based on app django_extensions update_permissions management
      command.
      """
      from django.conf import settings
      from django.db.models import get_app, get_models
      from django.contrib.auth.management import create_permissions
  
      create_permissions(
          get_app(app), get_models(), 2 if settings.DEBUG else 0)
  
  
  post_migrate.connect(update_permissions_after_migration)
  
subject: Add post_migrate receiver to create permissions