how to make xulrunner with python

I want make a stand application use python and xulrunner, but I am very confused, I use pyxpcomext with xulrunner 1.9.1,and it can word,

but with python logic can not import pyd? I used lxml in this app. In lxml there is a etree.pyd.and开发者_如何学JAVA can not import it.

But I saw a Miro, it is xulrunner and python. I want rebuild my app like Miro, can any one give me some point? and how to build to make a framework like Miro.

thanks~