<｜begin▁of▁sentence｜>### Instruction:
Given the High-energy theory collaborations Graph which you can read from a GML file named hep-th.gml, can you use the Louvain community detection algorithm in cdlib to perform community detection? And can you compute the average internal degree of the communities?
### Response:
import networkx as nx
from cdlib import algorithms, evaluation

# Create a graph
G = nx.read_gml('hep-th.gml')

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

# Calculate the average internal degree of the detected communities
avg_internal_degree = evaluation.average_internal_degree(G, communities)

print(avg_internal_degree)
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