setup.py

import setuptools
import re

version = ''
with open('pomice/__init__.py') as f:
    version = re.search(r'^__version__\s*=\s*[\'"]([^\'"]*)[\'"]', f.read(), re.MULTILINE).group(1)

if not version:
    raise RuntimeError('version is not set')

if version.endswith(('a', 'b', 'rc')):
    # append version identifier based on commit count
    try:
        import subprocess
        p = subprocess.Popen(['git', 'rev-list', '--count', 'HEAD'],
                             stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        out, err = p.communicate()
        if out:
            version += out.decode('utf-8').strip()
        p = subprocess.Popen(['git', 'rev-parse', '--short', 'HEAD'],
                             stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        out, err = p.communicate()
        if out:
            version += '+g' + out.decode('utf-8').strip()
    except Exception:
        pass

with open("requirements.txt") as f:
    requirements = f.read().splitlines()

with open("README.md") as f:
    readme = f.read()

setuptools.setup(
    name="pomice",
    author="cloudwithax",
    version=version,
    url="https://github.com/cloudwithax/pomice",
    packages=setuptools.find_packages(),
    license="GPL",
    description="The modern Lavalink wrapper designed for Discord.py",
    long_description=readme,
    long_description_content_type="text/markdown",
    include_package_data=True,
    install_requires=requirements,
    extra_require=None,
    classifiers=[
        "Framework :: AsyncIO",
        'Operating System :: OS Independent',
        'Natural Language :: English',
        'Intended Audience :: Developers',
        "Programming Language :: Python :: 3 :: Only",
        "Programming Language :: Python :: 3.8",
        'Topic :: Software Development :: Libraries :: Python Modules',
        'Topic :: Software Development :: Libraries',
        "Topic :: Internet"
    ],
    python_requires='>=3.8',
    keywords=['pomice', 'lavalink', "discord.py"],
)