pythonintermediate

Click CLI Command Group

Build professional CLI tools with Click using command groups, options, arguments, and help text.

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import click

@click.group()
@click.version_option(version="1.0.0")
def cli():
    """SnippetsLab CLI — manage your snippet collection."""
    pass

@cli.command()
@click.argument("name")
@click.option("--lang", "-l", default="python", help="Programming language")
@click.option("--difficulty", "-d", type=click.Choice(["beginner", "intermediate", "advanced"]))
def create(name: str, lang: str, difficulty: str | None):
    """Create a new snippet with NAME."""
    click.echo(f"Creating snippet: {name} ({lang})")
    if difficulty:
        click.echo(f"  Difficulty: {difficulty}")

@cli.command()
@click.option("--tag", "-t", multiple=True, help="Filter by tag")
@click.option("--limit", default=10, show_default=True)
def search(tag: tuple[str, ...], limit: int):
    """Search snippets by tag."""
    click.echo(f"Searching (tags={tag}, limit={limit})")

if __name__ == "__main__":
    cli()