import click
import random
import pyperclip

@click.command()
@click.argument("length", default=100, type=int)
def generate_random_number_list(length=100):
    """ generates a new line separated list of integers and copies it to the clipboard """
    numbers = list(range(1, length + 1))
    random.shuffle(numbers)
    integer_list = "\n".join(str(i) for i in numbers)
    pyperclip.copy(integer_list)
    click.echo("Copied to clipboard:", err=True)
    click.echo(integer_list)