I have created a graph from list of nodes using networkx. It has self loops. How to remove them? Following is sample:
JavaScript
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8
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import networkx as NX2
G=NX.Graph()3
G.add_edge(1,2)4
G.add_edge(1,1)5
print (G.edges())6
7
[(1, 2), (1, 1)]8
I don’t want (1, 1) edges.
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Answer
(instructions for networkx 1.x below)
If you’re using networkx 2.x try
JavaScript
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2
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G.remove_edges_from(nx.selfloop_edges(G))2
If you have a MultiGraph (which for example configuration_model produces), this may not work if you have an older release of 2.x with a minor bug. If so and you don’t want to upgrade, then you need to convert this into a list before removing edges.
JavaScript
1
2
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G.remove_edges_from(list(nx.selfloop_edges(G)))2
This bug has been corrected https://github.com/networkx/networkx/issues/4068.
In version 1.x (when I originally answered this question), it was:
JavaScript
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2
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G.remove_edges_from(G.selfloop_edges())2