Salva n numeros ordenados randomicamente em um arquivo

gera_txt.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
from random import random, shuffle


TOTAL_NUMBERS = 1000000


def gera_txt(n=TOTAL_NUMBERS):
    numbers = range(1, n + 1)
    shuffle(numbers, random=random)

    with open('output.txt', 'w') as output:
        for number in numbers:
            output.write('%d\n' % number)


if __name__ == '__main__':
    numbers = TOTAL_NUMBERS if len(sys.argv) == 1 else int(sys.argv[1])

    print 'Gerando %d numeros ordenados randomicamente...' % numbers
    gera_txt(numbers)
    print 'Ok, pronto =D Salvo em output.txt'