Description of problem:
When using setuptools for the build/install process most fields in the spec file are get empty.

Version-Release number of selected component (if applicable):
pyp2rpm-2.0.0-4.el7.noarch


How reproducible:
Use setuptools for setup.py

Steps to Reproduce:
1. call python3 setup.py sdist
2. feed pyp2rpm with the tar file

Actual results:
Many fields the the spec file are empty or set as "TODO:".

Expected results:
Filed out fields in the spec file for which an entry in the setup.py exists.


Additional info:
Sample:
from setuptools import setup, find_packages
import sys

def main(argv):
        setup(
                name="FOO",
                version="0.1.0",
                packages=find_packages(),
                scripts=["foo"],
                install_requires=[
                        "ldap3>=2.5.1",
                        "email-validator>=1.0.3",
                        "python-nss>=1.0.1"
                ],
                author="FOO",
                author_email="FOO",
                description="FOO",
                long_description="FOO",
                license="GPLv3",
                keywords="one word no",
                url="what ever",
        )
        return 0

if __name__ == "__main__":
        sys.exit(main(sys.argv))

The the spec file, the fields License, Source0 is empty and Summary, URL, description are filled with TODO:"