Python CLI Library Showdown

argparse_example.py

import argparse

parser = argparse.ArgumentParser()
parser.add_argument("name", help="The person to greet.", type=str)
args = parser.parse_args()
print(f"Hello {args.name}!")

cli_comparison.csv

click_example.py

import click

@click.command()
@click.option("--name", prompt="Your name", help="The person to greet.")
def hello(name):
    click.echo(f"Hello {name}!")

if __name__ == '__main__':
    hello()

fire_example.py

import fire

def hello(name="World"):
  return f"Hello {name}!"

if __name__ == '__main__':
  fire.Fire(hello)

gistfile1.txt

import sys

def main():
    name = sys.argv[1] if sys.arg[1] else 'World'
    print(f"Hello {name}!")

if __name__ == "__main__":
   main()

Python CLI Library Showdown

Medium Post

sys-argv_example.py

import sys

def main():
    name = sys.argv[1] if len(sys.argv) > 1 else "World"
    print(f"Hello {name}!")

if __name__ == "__main__":
   main()

typer_example.py

import typer

def main(name: str):
    typer.echo(f"Hello {name}!")

if __name__ == "__main__":
    typer.run(main)