I wrote some stuff about 12 years ago. (http://prpc.sourceforge.net/prpc.html) It's probably overkill for what you want to do.

I just picked up poser again after a 10 year hiatus. And it seems that the newest version of Poser has some limitations on running more than one python script at the same time. This can cause difficulties because the socket python code needs to be running all the time to communicate. Also, my PRPCd script uses Tkinter as a GUI. There seems to be a conflict between it and the Poser 11 library. I may rewrite the PRPCd to use wxPython. But I'm not sure.