优雅地访问networkx中的边缘属性

Question

确实确实需要访问下面的笨拙的第三种形式的networkx中的边缘属性，并且不需要更精简的前两种形式的变化吗？

import networkx as nx

G = nx.Graph()
G.add_edge(1, 2, weight=4.7 )
G.add_edge(3, 4, weight=5.8 )

# for edge in G.edges():
#     print edge['weight']
# 
# for edge in G.edges():
#     print G[edge]['weight']

for edge in G.edges():
    print G.edge[edge[0]][edge[1]]['weight']

Answer 1

用途data=True：

import networkx as nx

G = nx.Graph()
G.add_edge(1, 2, weight=4.7)
G.add_edge(3, 4, weight=5.8)

for node1, node2, data in G.edges(data=True):
    print(data['weight'])

版画

4.7
5.8