def deregister_app_verbose_name(self, app_label):
    '\n        Deregisters the given app label. Remove the app label from the\n        self.app_verbose_names as well.\n\n        If the app label is not already registered, this will raise\n        ImproperlyConfigured.\n        '
    try:
        del self.app_verbose_names[app_label]
    except KeyError:
        raise ImproperlyConfigured(('%s app label was never registered in django-admin2' % app_label))
Deregisters the given app label. Remove the app label from the
self.app_verbose_names as well.

If the app label is not already registered, this will raise
ImproperlyConfigured.
def deregister_app_verbose_name(self, app_label):
    '\n        Deregisters the given app label. Remove the app label from the\n        self.app_verbose_names as well.\n\n        If the app label is not already registered, this will raise\n        ImproperlyConfigured.\n        '
    try:
        del self.app_verbose_names[app_label]
    except KeyError:
        raise ImproperlyConfigured(('%s app label was never registered in django-admin2' % app_label))