Signal to update the column name in the Django's content types table when the verbose_name of a model is added, modified or deleted. Original code: http://stackoverflow.com/questions/6847020/when-verbose-name-changes-how-do-i-auto-update-a-models-contenttype

update_contenttypes_names_signal.py

from django.contrib.contenttypes.models import ContentType
from django.utils.functional import Promise
from south.signals import post_migrate

def update_contenttypes_names(**kwargs):
    for c in ContentType.objects.all():
        cl = c.model_class()
        if cl:
            new_name = cl._meta.verbose_name
            if c.name != new_name:
                print u"Updating ContentType's name: '%s' -> '%s'" % (c.name, new_name)
                c.name = new_name
                c.save()

post_migrate.connect(update_contenttypes_names, dispatch_uid="update_contenttypes")