To load Django fixtures without any IntegrityError

To load Django fixtures without any IntegrityError

from django.db.models import signals
from django.contrib.auth import models as auth_app
from django.contrib.auth.management import create_permissions, create_superuser
from django.contrib.contenttypes.management import update_contenttypes

signals.post_syncdb.disconnect(update_contenttypes)
signals.post_syncdb.disconnect(create_permissions,
    dispatch_uid = "django.contrib.auth.management.create_permissions")
signals.post_syncdb.disconnect(create_superuser    ,
    sender=auth_app, dispatch_uid = "django.contrib.auth.management.create_superuser")