gistfile1.txt

    def get_twitter_panelist_by_pmxid(self, pmx_id):
        with session_scope(self.db_session) as session:
            try:
                panelist = session.query(Panelists).filter_by(
                    medium='twitter',
                    pmxid=pmx_id).one()
            except NoResultFound:
                panelist = None
            session.expunge_all()
        return panelist