PyGraphviz is a Python interface to the Graphviz graph layout and visualization package. With PyGraphviz you can create, edit, read, write, and draw graphs using Python to access the Graphviz graph data structure and layout algorithms. PyGraphviz provides a similar programming interface to NetworkX (https://networkx.org).

• Website (including documentation): https://pygraphviz.github.io
• Mailing list: https://groups.google.com/forum/#!forum/pygraphviz-discuss
• Source: https://github.com/pygraphviz/pygraphviz
• Bug reports: https://github.com/pygraphviz/pygraphviz/issues

Simple example

>>> import pygraphviz as pgv
>>> G = pgv.AGraph()
>>> G.add_node("a")
>>> G.add_edge("b", "c")
>>> print(G)
strict graph "" {
        a;
        b -- c;
}

Install

PyGraphviz requires Graphviz. Please see INSTALL.txt for details.

License

Released under the 3-Clause BSD license (see LICENSE):

Copyright (C) 2006-2026 PyGraphviz Developers
Aric Hagberg <aric.hagberg@gmail.gov>
Dan Schult <dschult@colgate.edu>
Manos Renieris

The binary wheels distributed on PyPI bundle the Graphviz libraries and command-line tools, which are licensed separately under the Eclipse Public License v2.0 (see LICENSE.graphviz).