Family Tree with siblings

Has anyone been able to create a Family Tree chart with siblings using perl?
I use Gramps as my main genealogy program but for much of my searches  it
would be helpful if I had a chart with siblings without having to purchase a
separate program.
Right now I print out a Family Tree by Grandparent and hand write in
siblings to see what additional family info I need to search for. 
Since Gramps reports are all done in Python, I figured this would be a great
perl exersize.




Rich