Cria Permissão para model proxy no django 1.6

fix_permissions.py

from __future__ import unicode_literals, absolute_import, division

import sys

from django.db.models import get_models
from django.contrib.auth.management import _get_all_permissions
from django.contrib.auth.models import Permission
from django.contrib.contenttypes.models import ContentTyped
from django.utils.encoding import smart_text

for model in get_models():
    opts = model._meta
    ctype, created = ContentType.objects.get_or_create(
        app_label=opts.app_label,
        model=opts.object_name.lower(),
        defaults={'name': smart_text(opts.verbose_name_raw)})

    for codename, name in _get_all_permissions(opts, ctype):
        p, created = Permission.objects.get_or_create(
            codename=codename,
            content_type=ctype,
            defaults={'name': name})
        if created:
            sys.stdout.write('Adding permission {}\n'.format(p))