grpc python expected a string or

首先python添加打印日志

import logging

logging.basicConfig()

解决：No handlers could be found for logger grpc报错

然后

def write_hive_file(dir, str):

    open(dir, 'a').write(str)

write_hive_file(_LOG_PATH, str(object=res))

类型转换为字符串就可以了