Is it possible to get references for python language?

Hello:

I use gnu global and ggtags in emacs, they are wonderful tools. I really 
like that in C in can get references by using gtags.  I use  ctags 
backend to for  python  tags but miss the references. I have read about 
something called "pygment" backend but am unfamiliar w/ that tool. 
Bottom line, is there any way to be able to get python references (and 
not just definitions)?

Will appreciate any comments/pointers. Thanks.


GHT