def connect(self):
     """Connect to MySQL database."""
     print("Connecting to MySQL, mysql --host %s -u %s -p%s" %
           (self.host, MYSQL_USERNAME, MYSQL_PASSWORD))
     sql_engine = LocalSqlClient.init_engine(MYSQL_USERNAME, MYSQL_PASSWORD,
                                             self.host)
     self.client = LocalSqlClient(sql_engine, use_flush=False)