How to define a tuple of randint without repeating code?

问题

I often get to use tuples of randint for color-values and such like

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

when I thought there has to be a better way - is there?

回答1:

Using numpy?

1

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

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Multiple

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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Speed comparison

(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

回答2:

a, b, c = [randint(0, 255) for _ in range(3)]

来源：https://stackoverflow.com/questions/45515276/how-to-define-a-tuple-of-randint-without-repeating-code