Generator

import random as rnd
import sys


def main(count):
    if len(sys.argv) != 2:
        print("usage: python3 generator.py <output filename>")
        return

    _10percent = count * 0.1

    with open(sys.argv[1], 'w') as f:
        for i in range(count):
            f.write('{}\t{}\t{}\t{}\n'.format(i, rnd.random(), rnd.random(), rnd.random()))
            if i % _10percent == 0:
                print('{}%'.format(i / _10percent *  10))

                if i / _10percent *  10 == 90:
                    print('Подождите, мужики, тут еще крапаль остался')

if __name__ == "__main__":
    main(1000000)