cli1.py

import click
import click_completion
import os

click_completion.init()

option_type = click.Choice('obj1 obj2 obj3'.split())

@click.group()
def cli():
    """My Cool Tool"""

@cli.group(name='object')
def object_group():
    """Object subcommand"""

@object_group.command()
@click.argument('option', type=option_type)
def get(option):
    click.echo('option: {}'.format(option))


commands = (
    ('"" object get ""', 1),
    ('"" object get ""', 2),
    ('"" object get ""', 3),
    'object get obj1',
    '--help',
    'object --help',
    'object get --help',
)

os.environ['BASH_COMP'] = 'complete'

import sys, time
time.sleep(1)
print('Click Version: {}'.format(click.__version__))
print('Click Completion Version: {}'.format(click_completion.__version__))
print('Python Version: {}'.format(sys.version))
for cmd in commands:
    try:
        time.sleep(0.1)
        print('\n-----------')
        print('> ' + str(cmd))
        time.sleep(0.1)

        if len(cmd) == 2:
            os.environ['COMP_WORDS'] = cmd[0]
            os.environ['COMP_CWORD'] = str(cmd[1])
            cli(complete_var='BASH_COMP')
        else:
            try:
                del os.environ['COMP_WORDS']
                del os.environ['COMP_CWORD']
            except:
                pass
            cli(cmd.split())


    except BaseException as exc:
        if str(exc) != '0' and \
                not isinstance(exc, (click.ClickException, SystemExit)):
            raise