Make a visual representation of a graph

I have a list of edges.

(1,2),(1,3),(1,4),(1,5),(1,6),(2,4),(2,7),(3,4),(3,7),(4,5),(4,7开发者_JAVA技巧),(5,6),(6,7)

How can I get an image of this graph?

It should be automatic, because there are over 9000(not kidding) those lists.

I have always used graphviz for this sort of stuff.

You can draw it with Python and networkx.

import networkx
import pylab
edges = [(1,2),(1,3),(1,4),(1,5),(1,6),(2,4),(2,7),(3,4),(3,7),(4,5),(4,7),(5,6),(6,7)]
G = networkx.Graph(data=edges)
networkx.draw(G)
pylab.show()

You should read pylab's documentation on how to save the graph as an image without using the GUI. You can use ast.literal_eval to parse the original lists. For example, if it stored as one graph on a line in a file, you can do:

with open('edges.txt') as f:
    for line in f:
        edges = list(ast.literal_eval(line))
        # drawing goes here