>>> liste = [2, 4, 6, 8, 10]
>>> [3*x for x in liste]
[6, 12, 18, 24, 30]
>>> [[x, x**3] for x in liste]
[[2, 8], [4, 64], [6, 216], [8, 512], [10, 1000]]
>>> [3*x for x in liste if x > 5]  # on filtre avec une condition
[18, 24, 30]
>>> [3*x for x in liste if x**2 < 50] # idem
[6, 12, 18]
>>> liste2 = list(range(3))
>>> [x*y for x in liste for y in liste2]
[0, 2, 4, 0, 4, 8, 0, 6, 12, 0, 8, 16, 0, 10, 20]