import click @click.group() def cli(): pass @cli.command() def subcmd1(): click.echo('subcmd1') @click.command() @click.argument('foo') def subcmd2(foo): click.echo(f'subcmd2 with arg {foo}') cli.add_command(subcmd2) if __name__ == '__main__': cli() import click @click.command() @click.option('-l', '--long_long_long', 'long') @click.option('--foo', default='FOO') @click.option('--bar', type=float,