how to get information of a running prog in python

[Jimmy]

Well, i know it may be a little non-python thing, however, I can think
of no place better to post this question :)

can anyone tell me, in python, how to obtain some information of a
running program?
paticularly, if i am playing some music in audacious or other media
player, how can i get the the name and some other info of current
playing song? It seems that audicious doesn't output on run-time