list python append extend code example

Example: list appended insert extend python

a1 = [1, 'x', 'y']
a2 = [1, 'x', 'y']
a3 = [1, 'x', 'y']
b = [2, 3]

a1.append(b)
a2.insert(3, b)
a3.extend(b)
print(a1)
print(a2)
print(a3)

$ python all.py
[1, 'x', 'y', [2, 3]]
[1, 'x', 'y', [2, 3]]
[1, 'x', 'y', 2, 3]