<｜begin▁of▁sentence｜>### Instruction:
Given a graph with edge set [(0, 1), (1, 2), (2, 3)] and an edge attribute 'weight' set to 1.5, 2.5, and 3.5 for the respective edges, can you use different EdgeSeq methods to manipulate and access the edge attributes?
### Response:
from igraph import Graph
import igraph as ig

# Create a graph
g = ig.Graph(edges=[(0, 1), (1, 2), (2, 3)])

# Adding attribute 'weight' to all edges
g.es['weight'] = [1.5, 2.5, 3.5]

# Get edge attributes' names
attribute_names = g.es.attribute_names()
print('Edge Attributes:', attribute_names)

# Get values of the 'weight' attribute for all edges
weights = g.es.get_attribute_values('weight')
print('Weights:', weights)

# Check if the EdgeSeq contains all edges exactly once
is_all_edges = g.es.is_all()
print('Contains all edges:', is_all_edges)

# Set a new value for all edges attribute 'weight'
g.es.set_attribute_values('weight', [4.5, 5.5, 6.5])
updated_weights = g.es.get_attribute_values('weight')
print('Updated weights:', updated_weights)
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