apt-get install python-yapgvb
Yapgvb is a shiny new way to use python and graphviz at the same time.
Many thanks to Mike Driscoll of pythonlibrary.org for making it possible for Windows users to once again use Yapgvb with the current Python. The new version number reflects some minor bug fixes; a corresponding source package is also available.
I should also mention that an Ubuntu package, python-yapgvb, has been available for some time.
I could use some help maintaining yapgvb to stay current with new versions of {Python, Windows, Linux, Boost, Graphviz}... particularly on the Windows side of things. Please contact finite dot automaton at gmail dot com if you're interested in helping.
This is the first release, so you can expect some bugs. Yapgvb has been tested on Linux and Windows, but it might run elsewhere ;-) No Linux binaries exist; see the README for build instructions.