setup.py

from setuptools import find_packages, setup
with open("README.md") as fh:
    long_description = ""
    header_count = 0
    for line in fh:
        if line.startswith("##"):
            header_count += 1
        if header_count < 2:
            long_description += line
        else:
            break


def get_version():
    path = "pettingzoo/__init__.py"
    with open(path) as file:
        lines = file.readlines()

    for line in lines:
        if line.startswith("__version__"):
            return line.strip().split()[-1].strip().strip('"')
    raise RuntimeError("bad version data in __init__.py")


extras = {
    "atari": ["multi_agent_ale_py==0.1.11", "pygame==2.1.0"],
    "classic": ["chess==1.7.0", "rlcard==1.0.4", "pygame==2.1.0", "hanabi_learning_environment==0.0.1"],
    "butterfly": ["pygame==2.1.0", "pymunk==6.2.0"],
    "magent": ["magent==0.1.14"],
    "mpe": ["pyglet>=1.4.0"],
    "sisl": ["pygame==2.1.0", "box2d-py==2.3.5", "scipy>=1.4.1"],
    "other": ["pillow>=8.0.1"],
    "tests": ["pynput"],
}

extras["all"] = extras["atari"] + extras["classic"] + extras["butterfly"] + extras["magent"] + extras["mpe"] + extras["sisl"] + extras["other"]


setup(
    name='PettingZoo',
    version=get_version(),
    author='PettingZoo Community',
    author_email="jkterry@umd.edu",
    description="Gym for multi-agent reinforcement learning",
    url='https://github.com/Farama-Foundation/PettingZoo',
    long_description=long_description,
    long_description_content_type="text/markdown",
    keywords=["Reinforcement Learning", "game", "RL", "AI", "gym"],
    python_requires=">=3.7, <3.11",
    packages=["pettingzoo"] + ["pettingzoo." + pkg for pkg in find_packages("pettingzoo")],
    include_package_data=True,
    install_requires=[
        "numpy>=1.18.0",
        "gym>=0.21.0"
    ],
    classifiers=[
        'Development Status :: 5 - Production/Stable',
        'Programming Language :: Python :: 3',
        'Programming Language :: Python :: 3.7',
        'Programming Language :: Python :: 3.8',
        'Programming Language :: Python :: 3.9',
        'Programming Language :: Python :: 3.10',
    ],
    extras_require=extras,
)