setup.py

#!/usr/bin/env python3
import os
import json
import vtscan
from vtscan import __version__, __description__, __author__, __email__, __license__
from vtscan.vtscan import pkg_name, cfg
from setuptools import setup, find_packages
from setuptools.command.install import install
import shutil

#pkg_name = 'vtscan'

class PostInstallCommand(install):
    """Post-installation for installation mode."""
    def run(self):
        install.run(self)
        cfg_dir = os.path.join(os.path.expanduser("~"), ".config/")
        if not os.path.isdir(cfg_dir): os.makedirs(cfg_dir)
        tpath = os.path.join(cfg_dir, pkg_name+"-settings.json")
        if os.path.isfile(tpath):
            print("config file already exists")
            return
        else:
            open(tpath, 'w').write( json.dumps(cfg) )

def read(fname):
    return open(os.path.join(os.path.dirname(__file__), fname)).read()

s = setup(
    name=pkg_name,
    version=__version__,
    license=__license__,
    description=__description__,
    long_description=read("README.md"),
    long_description_content_type='text/markdown',
    url='https://github.com/prahladyeri/%s' % pkg_name,
    packages=find_packages(),
    include_package_data=True,
    entry_points={
        "console_scripts": [
            "vtscan = vtscan.vtscan:main",
        ],
    },
    install_requires=['requests'],
    python_requires = ">= 3.4",
    author=__author__,
    author_email=__email__,
    classifiers=[
        "Programming Language :: Python :: 3",
        "License :: OSI Approved :: MIT License",
        "Operating System :: OS Independent",
    ],
    cmdclass={
        'install': PostInstallCommand,
    },
    )