请教如何安装Publisher模块

如题，在win10环境下运行代码时，提示导入Publisher失败，请问要怎么安装此模块呢

Traceback (most recent call last):
  File "D:\python\WXSerial\wxserial.py", line 185, in <module>
    from wx.lib.pubsub import Publisher
ImportError: cannot import name Publisher
>>>