/*
*@command = dot -Tpng adepgraph.dot -o depgraph.png
*If dot is ever installed on the buildbox, this can be drawn inline by the
*sphinx graphviz extension, via ..graphviz:
*
*/

    digraph G {
        bgcolor = grey
        Enthought [shape = box; fontcolor = blue]
        Required [fontcolor = red]
        Optional [fontcolor = blue]

            Required -> Python [color=red];
            Required -> Numpy [color=red];
            Required -> SciPy [color=red];
            Optional -> ipython[color=blue];
            Optional -> rtree [color=blue];
            Optional -> Sphinx [color=blue];
            Sphinx -> numpydoc [color=red];

            Python ->  Enthought [color=blue];
            Numpy ->   Enthought [color=blue];
            SciPy ->   Enthought [color=blue];
            ipython -> Enthought [color=blue];
            }
