nxpd is a Python package for visualizing NetworkX graphs using pydot and graphviz. Support is also provided for inline displays within IPython notebooks.

Installation is easy:

pip install nxpd

Alternatively, you can use git:

git clone https://github.com/chebee7i/nxpd

Then, move into the nxpd directory and install the old fashioned way:

python setup.py install

Basic usage is as follows:

import networkx as nx
from nxpd import draw
G = nx.cycle_graph(4, create_using=nx.DiGraph())
draw(G)

This will display a PNG (by default) using your operating system's default PNG viewer. Alternatively, if you are in an IPython notebook, then you might like the image displayed inline. This is achieved by setting the show parameter of the draw function.

draw(G, show='ipynb')

If you want all graphs to be drawn inline, then you can set a global parameter.

from nxpd import nxpdParams
nxpdParams['show'] = 'ipynb'
draw(G)

Any graph/node/edge attribute that is supported by DOT is passed through to graphviz (via pydot). All others are skipped.

G = nx.DiGraph()
G.graph['rankdir'] = 'LR'
G.graph['dpi'] = 120
G.add_cycle(range(4))
G.add_node(0, color='red', style='filled', fillcolor='pink')
G.add_node(1, shape='square')
G.add_node(3, style='filled', fillcolor='#00ffff')
G.add_edge(0, 1, color='red', style='dashed')
G.add_edge(3, 3, label='a')
draw(G)