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joelhaasnoot/gist:1521104

Created December 26, 2011 13:14
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gistfile1.txt
from pygraph.classes import graph, exceptions
def make_graph(nodes, edges):
bg = graph.graph()
bg.add_nodes(nodes)
for edge in edges:
try:
bg.add_edge(edge)
except exceptions.AdditionError:
print "Already had it: %s %s" % (edge[0], edge[1]) # Edge is tuple
return bg
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