shufflesequence.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
from pprint import pprint, pformat
import random


def randomize(items):
    randomized = []
    while 0 < len(items):
        idx = random.randint(0, len(items)-1)
        popped = items[idx]
        del items[idx]
        randomized.append(popped)
    return randomized


if __name__ == '__main__':
    x = [1, 2, 3, 4, 5]
    y = [10, 20, 30, 40, 50, 60, 70]
    z = [111, 222, 333, 444, 555, 666, 777, 888, 999]

    print 'x = %s' % pformat(x)
    print 'randomized x = %s' % pformat(randomize(x))

    print 'y = %s' % pformat(y)
    print 'randomized y = %s' % pformat(randomize(y))

    print 'z = %s' % pformat(z)
    print 'randomized z = %s' % pformat(randomize(z))

http://b.hatena.ne.jp/entry/nmi.jp/archives/541 を見て。