Another example of click_params list type

click_params_2.py

import socket

import click
from click_params import DomainListParamType


@click.option(
    '-d', '--domains',
    prompt=True,
    help='list of domain names separated by a space',
    type=DomainListParamType(' ')
)
@click.command()
def cli(domains):
    """Give an ip address of the given domain names"""
    for domain in domains:
        click.echo(f'{domain} -> {socket.gethostbyname(domain)}')