setup.py

import platform
from setuptools import setup, find_packages

if platform.system() == "Windows":
    setup(
        name="pymodins",
        version="2.1.3",
        packages=find_packages(),
        install_requires=[
            "rich"
        ],
        entry_points={
            "console_scripts": [
                "pymodins=pymodins.installer:run",
                "pymodins.creator=pymodins.installer:creator"
            ],
        },
        author="Nandhan K",
        author_email="nandhan2003alamelu@gmail.com",
        description="A module to install various Python packages.",
        keywords=[
            "Python Module Installer", 
            "Python Package Installer", 
            "python modules installer", 
            "python package installer", 
            "Nandhan-KA", 
            "PYMODINS", 
            "pymodins"
        ],
        long_description=open('README.md').read(),
        long_description_content_type='text/markdown',
        url="https://github.com/Nandhan-KA/pymodins",
        classifiers=[
            "Programming Language :: Python :: 3",
            "License :: OSI Approved :: MIT License",
            "Operating System :: Microsoft :: Windows",
        ],
        python_requires='>=3.6',
        platforms=["win32"],  
    )
else:
    raise RuntimeError("This program is designed to run on Windows systems only.")