使用原始函数

import click
@click.command()
@click.option('--foo', help='the foo arg')
@click.option('--bar', help='the bar arg')
def main(**kwargs):
    """docstirng of main
    """
    return kwargs
if __name__ == "__main__":
    main()

1command.callback

from a import main
main.callback(foo=111, bar=222)
# {'foo': 111, 'bar': 222}

2 standalone_mode=False

from a import main
main(['--foo', 111, '--bar', 222], standalone_mode=False)
# {'foo': '111', 'bar': '222'}

• https://github.com/pallets/click/issues/1054