How do I return a value when @click.option is used to pass a command line argument to a function?

Question

I am trying to use click python package to pass a command line argument to a function. The example from official documentation works as explained. But nowhere in the documentati

Answer 1

You have to tell click to print to stdout using click.echo(). Here is a working example using the code in your question (without caring about exit code as others have mentioned):

import click


@click.command()
@click.option('--count', default=3, help='Number of greetings.')
def hello(count):
    """Simple program that greets NAME for a total of COUNT times."""
    for x in range(count):
        click.echo('Hello')
    return click.echo("hello hi")

if __name__ == '__main__':
    hello()