@property
    def metadata(self):
        return {u'purpose': self.purpose}
Prepends 'Re:' to the subject. To avoid multiple 'Re:'s
dataset/ETHPy150Open ClusterHQ/flocker/admin/acceptance.py/ClusterIdentity.metadata--crossover with--dataset/ETHPy150Open arneb/django-messages/django_messages/utils.py/format_subject