def _upgrade_database(self):
self._logger.info('<STR_LIT>')<EOL>try:<EOL><INDENT>sql = '''<STR_LIT>'''<EOL>self._db_curs.execute(sql)<EOL><DEDENT>except:<EOL><INDENT>pass<EOL><DEDENT>self._db_conn.commit()<EOL>
Upgrade database to latest version

            This is a fairly primitive function that won't look at how the
            database looks like but just blindly run commands.