python - 如何在不重复代码的情况下定义 randint 的元组？

Question

我经常将 randint 元组用于颜色值等

(a, b, c) = randint(0, 255), randint(0, 255), randint(0, 255)

当我认为必须有更好的方法时 - 有吗？

Answer 1

使用 numpy？

1

import numpy as np
tuple(np.random.randint(256, size=3))
# (222, 49, 14)

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多个

import numpy as np
n=3
[tuple(i) for i in np.random.randint(256, size=(n,3))] # list
# (tuple(i) for i in np.random.randint(256, size=(n,3))) # generator
# [(4, 70, 3), (10, 231, 41), (141, 198, 105)]

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速度比较

(randint(0, 255), randint(0, 255), randint(0, 255))

100000 loops, best of 3: 5.31 µs per loop

tuple(random.randint(0, 255) for _ in range(3))

100000 loops, best of 3: 6.96 µs per loop

tuple(np.random.randint(256, size=3))

100000 loops, best of 3: 4.58 µs per loop