root/pypi: links for r503

root/pypi r503-0.0.4.tar.gz
root/pypi r503-0.0.3.tar.gz
root/pypi r503-0.0.2.tar.gz
root/pypi r503-0.0.1.tar.gz
root/pypi r503-0.0.1-py3-none-any.whl
root/pypi r503-0.0.0.tar.gz
root/pypi r503-0.0.0-py3-none-any.whl