click Documenting Scripts

https://click.palletsprojects.com/en/7.x/documentation/

option幫助信息

help參數來填寫幫助信息

@click.command()
@click.option('--count', default=1, help='number of greetings')
@click.argument('name')
def hello(count, name):
    """This script prints hello NAME COUNT times."""
    for x in range(count):
        click.echo('Hello %s!' % name)

Arguments幫助信息

@click.command()
@click.argument('filename')
def touch(filename):
    """Print FILENAME."""
    click.echo(filename)

$ touch --help
Usage: touch [OPTIONS] FILENAME

  Print FILENAME.

Options:
  --help  Show this message and exit.