click：Python 的第三方库，用于快速创建命令行

click：Python 的第三方库，用于快速创建命令行。支持装饰器方式调用、多种参数类型、自动生成帮助信息等。

Python 命令行工具

访问GitHub主页

共9756Star

详细介绍

$ click_

Click is a Python package for creating beautiful command line interfaces in a composable way with as little code as necessary. It's the "Command Line Interface Creation Kit". It's highly configurable but comes with sensible defaults out of the box.

It aims to make the process of writing command line tools quick and fun while also preventing any frustration caused by the inability 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

Installing

Install and update using pip:

$ pip install click

Click supports Python 3.4 and newer, Python 2.7, and PyPy.

A Simple Example

What does it look like? Here is an example of a simple Click program:

import click

@click.command()
@click.option("--count", default=1, help="Number of greetings.")
@click.option("--name", prompt="Your name",
              help="The person to greet.")
def hello(count, name):
    """Simple program that greets NAME for a total of COUNT times."""
    for _ in range(count):
        click.echo("Hello, %s!" % name)

if __name__ == '__main__':
    hello()

And what it looks like when run:

$ python hello.py --count=3
Your name: Click
Hello, Click!
Hello, Click!
Hello, Click!

Donate

The Pallets organization develops and supports Click and other popular packages. In order to grow the community of contributors and users, and allow the maintainers to devote more time to the projects, please donate today.