Returns a restclients.Person object for the given netid.  If the
        netid isn't found, or if there is an error communicating with the PWS,
        a DataFailureException will be thrown.

def get_person_by_netid(self, netid):
        """
        Returns a restclients.Person object for the given netid.  If the
        netid isn't found, or if there is an error communicating with the PWS,
        a DataFailureException will be thrown.
        """
        if not self.valid_uwnetid(netid):
            raise InvalidNetID(netid)

        url = "{}/{}/full.json".format(PERSON_PREFIX, netid.lower())
        response = DAO.getURL(url, {"Accept": "application/json"})

        if response.status != 200:
            raise DataFailureException(url, response.status, response.data)

        return self._person_from_json(response.data)