python MySQL pool is returning 'u' key in the array as like - [{u'data': u'{"no\_comment":1,"total\_reply":2}'}]

**A required response should be like - [{"data": {"no\_comment":1,"total\_reply":2}}].**

query - "select data from tbl\_comment where id = 10"

reference code - 

```
def query(_db_config, _sql, _args):
   conn = get_pool_connection(_db_config)
   if not isinstance(conn, PooledMySQLConnection):
      cursor = conn.cursor(MySQLdb.cursors.DictCursor)
   else:
      cursor = conn.cursor(dictionary=True)
   result = ()
   try:
      cursor.execute(_sql, _args)
      result = cursor.fetchall()
   except:
     pass
     rootLogger.error("query exception sql is %s ,_args is %s,stacks is %s", _sql, _args, get_caller_info_total())
     rootLogger.exception("message")
   finally:
     cursor.close()
     conn.close()
   return result

```