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import click
import os
@click.group()
def cli():
pass
def get_env_vars(ctx, args, incomplete):
return os.environ.keys()
@cli.command()
@click.argument("envvar", type=click.STRING, autocompletion=get_env_vars)
def cmd1(envvar):
click.echo('Environment variable: %s' % envvar)
click.echo('Value: %s' % os.environ[envvar])
@click.group()
def group():
pass
def list_users(ctx, args, incomplete):
# Here you can generate completions dynamically
users = ['bob', 'alice']
return users
@group.command()
@click.argument("user", type=click.STRING, autocompletion=list_users)
def subcmd(user):
click.echo('Chosen user is %s' % user)
cli.add_command(group)
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