How to draw network layouts to files. Run this in a Python shell.

gistfile1.py

import matplotlib

#This has to go before importing pyplot
matplotlib.use('Agg')

import matplotlib.pyplot as plt
import networkx as nx

# Make your graph
G = nx.dodecahedral_graph()

# There are many configuration options available for nx.draw
# http://networkx.github.io/documentation/latest/reference/generated/networkx.drawing.nx_pylab.draw_networkx.html#networkx.drawing.nx_pylab.draw_networkx

nx.draw(G)
plt.savefig('graph_image.png')