Get command line scripts from setup.py

run.py

#! /usr/bin/env python
"""The project dommand line interface for developers.
"""

from __future__ import (absolute_import,
                        division,
                        print_function,
                        unicode_literals)

from io import open
from os.path import join, dirname
from json import loads
from argparse import ArgumentParser
from subprocess import call


def get_scripts():
    filepath = join(dirname(__file__), 'package.json')
    with open(filepath, encoding='utf-8') as file:
        package = loads(file.read())
        return package['scripts']


scripts = get_scripts()


def build_parser():
    parser = ArgumentParser(prog='python run.py',
                            description=__doc__,
                            epilog='See package.json')
    parser.add_argument('script', choices=scripts.keys())
    return parser


if __name__ == '__main__':
    choice = build_parser().parse_args().script
    command = scripts[choice]

    print('{script} running {command}'.format(script=choice, command=command))
    exit(call(command, shell=True))