Python's powerful command line library click tutorial to get started

preface

Our game resource processing tool is implemented by Python, and its functions include csv parsing, UI material processing, animation resource parsing, batch processing, Androd&iOS automatic packaging and other functions. The project was inherited from other departments, and because most of the code did not meet our business requirements, we did a big refactoring. All business code was removed and only the python code framework was retained. The command line parameter parsing in the project was self-implemented, extremely inelegant, and endured for so long. I'm going to find time to rewrite it using click. So I recently learned click. This article is an introduction to click for beginners.

Website image address: http: / / click uoota. com / / 6

Support:

Any nesting of commands Automatically generate help messages Lazy loading of subcommands at run time is supported

The installation method is using pip:

pip install click

The following code is an example of its official home page, posted below:

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 x in range(count):
  click.echo('Hello %s!' % name)
 
if __name__ == '__main__':
 hello()

Run:

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

See help information:

$ python hello.py --help
Usage: hello.py [OPTIONS]
 
 Simple program that greets NAME for a total of COUNT times.
 
Options:
 --count INTEGER Number of greetings.
 --name TEXT  The person to greet.
 --help   Show this message and exit.

conclusion

The above is the introduction of Python command line tool click installation and use of all the content, I hope the content of this article for everyone to learn or use python can bring 1 definite help, if you have any questions you can leave a message to communicate.