<｜begin▁of▁sentence｜>### Instruction:
Given an undirected graph with the edge set [(0, 1), (1, 2), (2, 0), (2, 3), (3, 4), (4, 5), (5, 3)], how can you use the 'edge_connectivity' function in igraph to calculate the edge connectivity of the graph? Also, provide the equivalent function in networkx for performing the same task.
### Response:
import igraph as ig
import networkx as nx

# Create an undirected graph with edges
edges = [(0, 1), (1, 2), (2, 0), (2, 3), (3, 4), (4, 5), (5, 3)]
g = ig.Graph(edges=edges)

# Calculate the edge connectivity of the graph
edge_conn = g.edge_connectivity()
print('Edge connectivity of the graph:', edge_conn)

# Calculate edge connectivity with NetworkX
G_nx = nx.Graph(edges)
edge_conn_nx = nx.edge_connectivity(G_nx)
print('Edge connectivity using NetworkX:', edge_conn_nx)
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