pydot written in pure Python is an interface to Graphviz, can parse and dump into the DOT language used by GraphViz, and networkx can convert its graphs to pydot.
acquired package info from repodata DB: repodata/f1f85c23079e7764ad00378a9fc5d660b89a03657290e75426caf7be5b7da462-primary.sqlite.bz2