setup.py

from setuptools import setup, find_packages
from re import search as re_search

_readme_file = 'README.md'
_release_file = 'RELEASE.md'
_extras_path = 'extras'
_tests_path = 'tests/pytest'

with open(_readme_file, 'r') as f:
    long_description = f.read()

with open(_release_file, 'r') as f:
    line = f.readline()
    while line:
        match = re_search("^## (\d\.\d\.\d)$", line)
        if match:
            _version = match.group(1)
            break
        line = f.readline()

with open(_extras_path+'/.env', 'r') as f:
    for line in f:
        if line.startswith('PACKAGE='):
            _package = line.splitlines()[0].split('=')[1].lower()
        if line.startswith('URL='):
            _url = line.splitlines()[0].split('=')[1].lower()
        if line.startswith('AUTHORS='):
            _authors = line.splitlines()[0].split('=')[1].lower()
        if line.startswith('DESCR='):
            _descr = line.splitlines()[0].split('=')[1].lower()
        if line.startswith('CORR_AUTHOR='):
            _corr_author = line.splitlines()[0].split('=')[1].lower()


setup(
    name=_package,
    version=_version,
    author=_authors,
    author_email=_corr_author,
    description=_descr,
    long_description=long_description,
    long_description_content_type='text/markdown',
    url=_url,
    packages=find_packages(),
    package_dir={_package: 'rp2paths'},
    include_package_data=True,
    # install_requires              = required,
    test_suite='pytest',
    license='MIT',
    classifiers=[
        'Programming Language :: Python :: 3',
        'License :: OSI Approved :: MIT License',
        'Operating System :: OS Independent',
    ]
)