Python使命令和参数缩短

import argparse

def main():
    parser = argparse.ArgumentParser(description='Process some integers.')
    parser.add_argument('integers', metavar='N', type=int, nargs='+',
                        help='an integer for the accumulator')
    parser.add_argument('--sum', dest='accumulate', action='store_const',
                        const=sum, default=max,
                        help='sum the integers (default: find the max)')

    args = parser.parse_args()
    print(args.accumulate(args.integers))

if __name__ == '__main__':
    main()

python script.py 1 2 3 4 --sum

import click

@click.command()
@click.argument('integers', type=int, nargs=-1)
@click.option('--sum', 'accumulate', flag_value='sum', default='max',
              help='Sum the integers (default: find the max).')
def main(integers, accumulate):
    if accumulate == 'sum':
        result = sum(integers)
    else:
        result = max(integers)
    click.echo(result)

if __name__ == '__main__':
    main()

python script.py 1 2 3 4 --sum

import fire

def main(integers, sum=False):
    if sum:
        result = sum(integers)
    else:
        result = max(integers)
    print(result)

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

python script.py 1 2 3 4 --sum=True