你好有个问题请教一下

[LittleYoungMan]

我是用python调用java的dubbo服务 把你的文件复制到我的site-package下，调用时出现如下问题
Traceback (most recent call last):
File "D:/classadmin/生涯探索/careerserv/example/tests.py", line 19, in
print (conn.invoke(interface, method, param))
File "D:\python\venv\lib\site-packages\dubbo_telnet_init_.py", line 84, in invoke
return self.do(cmd)
File "D:\python\venv\lib\site-packages\dubbo_telnet_init_.py", line 65, in do
tn.write('\n')
File "C:\Users\asdf\AppData\Local\Programs\Python\Python36\Lib\telnetlib.py", line 287, in write
if IAC in buffer:
TypeError: 'in ' requires string as left operand, not bytes
我的代码
import dubbo_telnet

if name == 'main':
Host = '127.0.0.1' # Doubble服务器IP
Port = 30885 # Doubble服务端口

# 初始化dubbo对象
conn = dubbo_telnet.connect(Host, Port)

# 设置telnet连接超时时间
conn.set_connect_timeout(10)

# 设置dubbo服务返回响应的编码
conn.set_encoding('utf-8')

interface = 'com.hqjl.scheduler.classcard.IScheduleClassCardService'
method = 'getAdminClasses',
param = '{"schoolID": "1153"}'
print (conn.invoke(interface, method, param))

# command = 'invoke com.zrj.pay.trade.api.QueryTradeService.tradeDetailQuery({"id":"nimeide"})'
# print (conn.do(command))