def __default(self, param):
    attr1 = getattr(self.want, param)
    try:
        attr2 = getattr(self.have, param)
        if (attr1 != attr2):
            return attr1
    except AttributeError:
        return attr1
def __default(self, param):
    attr1 = getattr(self.want, param)
    try:
        attr2 = getattr(self.have, param)
        if (attr1 != attr2):
            return attr1
    except AttributeError:
        return attr1