# changing verbose name of model does not change ContentType name
# this script will loop through all ContentType objects and refresh names

# optional activate translation
from django.utils import translation
translation.activate('en')

from django.contrib.contenttypes.models import ContentType
content_types = ContentType.objects.all()

for ct in content_types:
    model = ct.model_class()
    if model:
        ct.name = model._meta.verbose_name
        ct.save()