setup.py

from setuptools import setup, find_packages
from sys import version_info, exit, stderr

with open("PyPi-README.rst") as f:
    long_description = f.read().replace("\r", "")

if version_info < (3, 5, 0):
    stderr.write('zIRC requires Python 3.4 and higher')
    exit(-1)

setup(name='zirc',
      version='1.3.0',
      description='Python IRCP Library',
      long_description=long_description,
      url='https://github.com/itslukej/zirc',
      author='Luke J.',
      author_email='me+zirc@lukej.me',
      license='GNU',
      packages=find_packages(),
      extras_require={
          'pysocks': ['pysocks'],
      },
      python_requires='>=3.5',
      include_package_data=True,
      zip_safe=False,
      classifiers=[
            'Development Status :: 5 - Production/Stable',
            'Intended Audience :: Developers',
            'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
            'Natural Language :: English',
            'Programming Language :: Python',
            'Programming Language :: Python :: 3.5',
            'Programming Language :: Python :: 3.6',
            'Programming Language :: Python :: 3.7',
            'Programming Language :: Python :: 3.8'
            'Programming Language :: Python :: 3.9'
            'Programming Language :: Python :: Implementation :: CPython',
            'Programming Language :: Python :: Implementation :: PyPy',
            'Topic :: Communications :: Chat :: Internet Relay Chat',
            'Topic :: Software Development :: Libraries :: Python Modules'
      ])