<｜begin▁of▁sentence｜>### Instruction:
As a public relations manager, you have been given the task to analyze the social network interactions of a group of individuals relevant to your organization. In this scenario, the Les Miserables character interaction graph, available in a GML file named lesmis.gml, represents the interactions between characters in the classic novel "Les Misérables." Your goal is to use the Louvain community detection algorithm in the cdlib library to identify distinct groups within the network and then compute the Z-modularity to assess the quality of the community structure.
### Response:
import networkx as nx
from cdlib import algorithms, evaluation

# Load the Les Miserables graph
G = nx.read_gml('lesmis.gml')

# Apply the Louvain community detection algorithm
c = algorithms.louvain(G)

# Calculate the Z-modularity
z_mod = evaluation.z_modularity(G, c)

# Print the Z-modularity
print('Z-modularity:', z_mod.score)
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