click is a Python package for creating beautiful command line interfaces in a composable way with as little amount of code as necessary. It's the "Command Line Interface Creation Kit". It's highly configurable but comes with good defaults out of the box.
It aims at making writing command line tools fun and quick without causing user frustration at not being able to implement an intended CLI API.
Click in three points:
- arbitrary nesting of commands
- automatic help page generation
- supports lazy loading of subcommands at runtime
What does it look like? A simple example can be this:
.. click:example::
import click
@click.command()
@click.option('--count', default=1, help='number of greetings')
@click.option('--name', prompt='Your name',
help='the person to greet', required=True)
def hello(count, name):
for x in range(count):
print('Hello %s!' % name)
if __name__ == '__main__':
hello()
You can get the library directly from PyPI:
pip install click
This part of the documentation guides you through all the usage patterns of the library.
.. toctree:: :maxdepth: 2 why quickstart parameters options arguments commands prompts documentation setuptools complex advanced python3
If you are looking for information on a specific function, class or method, this part of the documentation is for you.
.. toctree:: :maxdepth: 2 api