setup.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import sys
import os
from setuptools import setup
from pathlib import Path
this_dir = Path(__file__).absolute().parent

if sys.argv[-1].startswith('publish'):
    if os.system("pip3 list | grep wheel"):
        print("wheel not installed.\nUse `pip install wheel`.\nExiting.")
        sys.exit()
    if os.system("pip3 list | grep twine"):
        print("twine not installed.\nUse `pip install twine`.\nExiting.")
        sys.exit()
    os.system("python3 -m pep517 -bs .")
    if sys.argv[-1] == 'publishtest':
        os.system("twine upload -r test dist/*")
    else:
        os.system("twine upload dist/*")
    sys.exit()

if __name__ == "__main__":
    setup()