Problem with plt.savefig()

[Sergio Hernandez]

Hi everyone


I'm having this problem with pyplot and networkx (versions 0.36 and 0.99) and the problem is that whenever I want to do this

>>> import networx as nx
>>> import matplotlib.pyplot as plt
>>> G = nx.read_yaml("graph.yaml")
>>> nx.draw(G)
>>> plt.savefig("figure.png")

I get an empty picture, but if, instead I do

>>> plt.show()

there I can save the figure without any problem

what am I doing wrong? does anyone knows?


greetings

Sergio

[Aric Hagberg]

That looks correct and works for me.
(though I am likely using different versions of
networkx and matplotlib than you).
e.g.

>>> import networkx as nx
>>> G=nx.path_graph(4)
>>> nx.draw(G)
>>> import matplotlib.pyplot as plt
>>> plt.savefig('figure.png')

produces an image of the path graph.

Does this work for other matplotlib plots?
e.g.

>>> plt.plot([1,2,3])
>>> plt.savefig('figure.png')

If not then there is some issue with matplotlib...

Aric