Python click module for creating a CLI

Question

I am using python click module to create a CLI. The fact is that I want to have category commands with arguments, for example:

myawesomecli env info
myawesomecli env clean
myawesomecli env ...

myawesomecli database create-table <name>
myawesomecli database insert <entry>
myawesomecli database ...

So far, I can come up with this:

import click
@click.group()
@click.version_option(version='0.1 ')
def cli():
    pass

@cli.command()
@click.argument('option')
def env(option):
    if option == 'info':
        click.echo("run env info command")
    elif option == 'clean':
        click.echo("run env clean command")     
    ...

@cli.command()
@click.argument('option')
def database(option):
    if option == 'create-table':
        click.echo("run database create-table command")
    elif option == 'clean':
        click.echo("run database clean command")        
    ...

Is there a way to have a function for each subcommand instead of using the if-else's?

What library provides click?

user5547025
– user5547025

2016-04-29 09:38:50 +00:00
Commented Apr 29, 2016 at 9:38 — user5547025
– user5547025, Commented Apr 29, 2016 at 9:38
pip list|grep click click (6.6)

hosselausso
– hosselausso

2016-04-29 09:45:34 +00:00
Commented Apr 29, 2016 at 9:45 — hosselausso
– hosselausso, Commented Apr 29, 2016 at 9:45
You could provide a link.

user5547025
– user5547025

2016-04-29 09:46:35 +00:00
Commented Apr 29, 2016 at 9:46 — user5547025
– user5547025, Commented Apr 29, 2016 at 9:46
Sure, I'm using this guide: click.pocoo.org/6

hosselausso
– hosselausso

2016-04-29 09:47:20 +00:00
Commented Apr 29, 2016 at 9:47 — hosselausso
– hosselausso, Commented Apr 29, 2016 at 9:47

Yonz · Accepted Answer · 2016-05-12 23:37:58Z

3

import click
@click.group()
@click.version_option(version='0.1 ')
def cli():
    pass

@cli.group()
@click.argument('option')
def env(option):
   """ Define the environment of the product """
   pass

@env.command()
def info():
    click.echo("run env info command")

@env.command():
def group():
    click.echo("run env group command")
...

I'm also struggling to understand a few things but this is one idea that i hope helps.

answered May 12, 2016 at 23:37

Yonz

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