Best practices for Querying graphs by edge and node attributes in NetworkX

Question

Using NetworkX, and new to the library, for a social network analysis query. By Query, I mean select/create subgraphs by attributes of both edges nodes where the edges creat

Answer 1

Building on @Aric's answer, you can find red fish like this:

red_fish = set(n for u,v,d in G.edges_iter(data=True)
               if d['color']=='red'
               for n in (u, v)
               if G.node[n]['label']=='fish')

print(red_fish)
# set([2])