Something

        signature.address = amt.Address(person=person,
                                        name=person.full_name,
                                        line1=new_data.get('line1',None),
                                        line2=new_data.get('line2',None),
                                        city=new_data.get('city',None),
                                        state=new_data.get('state',None),
                                        zip=new_data.get('zip',None),
                                        country=amt.CountryInfo.objects.get(pk=new_data.get('isocc', None)),
                                        contact_type=petition_type)
        assert signature.address is not None