sound process moduls in python ?

[fdu.xiaojf at gmail.com]

Hi,

When I was talking with my friend, I wanted to share the music I'm 
listening with
my friend. I mean, I wanted my friend to hear my music and my own sound .

I order to achieve this, I think I need to append the output of my sound 
card to
the input of the sound card.

My questions:

1. Is my idea possible ?

2. Which sound processing module is capable to do this ? The module 
should at least
available at Windows platform.

Thanks !

xiaojf