setup.py

from configparser import ConfigParser

import setuptools
from pkg_resources import parse_version

assert parse_version(setuptools.__version__) >= parse_version("36.2")

# note: all settings are in settings.ini; edit there, not here
config = ConfigParser(delimiters=["="])
config.read("settings.ini")
cfg = config["DEFAULT"]

cfg_keys = "version description keywords author author_email".split()
expected = cfg_keys + "lib_name user branch license status min_python audience language".split()
for o in expected:
    assert o in cfg, "missing expected setting: {}".format(o)
setup_cfg = {o: cfg[o] for o in cfg_keys}

licenses = {
    "apache2": ("Apache Software License 2.0", "OSI Approved :: Apache Software License"),
    "mit": ("MIT License", "OSI Approved :: MIT License"),
    "gpl2": ("GNU General Public License v2", "OSI Approved :: GNU General Public License v2 (GPLv2)"),
    "gpl3": ("GNU General Public License v3", "OSI Approved :: GNU General Public License v3 (GPLv3)"),
    "bsd3": ("BSD License", "OSI Approved :: BSD License"),
}
statuses = [
    "1 - Planning",
    "2 - Pre-Alpha",
    "3 - Alpha",
    "4 - Beta",
    "5 - Production/Stable",
    "6 - Mature",
    "7 - Inactive",
]
py_versions = "3.6 3.7 3.8 3.9 3.10 3.11".split()

requirements = cfg.get("requirements", "").split()
if cfg.get("pip_requirements"):
    requirements += cfg.get("pip_requirements", "").split()
min_python = cfg["min_python"]
lic = licenses.get(cfg["license"].lower(), (cfg["license"], None))
dev_requirements = (cfg.get("dev_requirements") or "").split()

setuptools.setup(
    name=cfg["lib_name"],
    license=lic[0],
    classifiers=[
        "Development Status :: " + statuses[int(cfg["status"])],
        "Intended Audience :: " + cfg["audience"].title(),
        "Natural Language :: " + cfg["language"].title(),
    ]
    + ["Programming Language :: Python :: " + o for o in py_versions[py_versions.index(min_python) :]]
    + (["License :: " + lic[1]] if lic[1] else []),
    url=cfg["git_url"],
    packages=setuptools.find_packages(),
    include_package_data=True,
    install_requires=requirements,
    extras_require={"dev": dev_requirements},
    dependency_links=cfg.get("dep_links", "").split(),
    python_requires=">=" + cfg["min_python"],
    long_description=open("README.md").read(),
    long_description_content_type="text/markdown",
    zip_safe=False,
    entry_points={
        "console_scripts": cfg.get("console_scripts", "").split(),
        "nbdev": [f'{cfg.get("lib_path")}={cfg.get("lib_path")}._modidx:d'],
    },
    **setup_cfg,
)