python - 优雅地访问 networkx 中的边缘属性

Question

要访问 networkx 中的边缘属性，是否确实需要下面笨拙的第三种形式，而更精巧的前两种形式的变体就不行？

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

使用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'])

打印

4.7
5.8