NetworkX / Pandas -如何将每个节点的社区组输出到.txt中

import networkx as nx
import pandas as pd

G = nx.Graph()
G.add_nodes_from([1, 2, 3, 4])  # 添加节点
G.add_edges_from([(1, 2), (2, 3), (3, 4)])  # 添加边

communities = nx.algorithms.community.greedy_modularity_communities(G)

df = pd.DataFrame({'Node': list(G.nodes()), 'Community': [i+1 for i, c in enumerate(communities) for node in c]})

df.to_csv('node_communities.txt', sep='\t', index=False)

Node    Community
1       1
2       1
3       2
4       2