[http://qiita.com/attakei/items/3713a4d88ba1ee776e19](Qiita記事関連コード)

calc-1.py

import fire


class Calcurator(object):
    def add(self, first, second):
        return int(first) + int(second)


if __name__ == '__main__':
    fire.Fire(Calcurator)

calc-2.py

import argparse

parser = argparse.ArgumentParser()
parser.add_argument('mode')
parser.add_argument('first')
parser.add_argument('second')


class Calcurator(object):
    def add(self, first, second):
        return int(first) + int(second)


if __name__ == '__main__':
    args = parser.parse_args()
    cli = Calcurator()
    print(getattr(cli, args.mode)(args.first, args.second))

loop.py

import sys
import subprocess

script = sys.argv[1]
count = int(sys.argv[2])

for _ in range(count):
    proc = subprocess.Popen('python {} add 12345 67890'.format(script).split(), stdout=None)
    proc.communicate()