root/pypi: links for de-duplication

root/pypi de-duplication-2.0.0.tar.gz
root/pypi de_duplication-2.0.0-py3-none-any.whl
root/pypi de-duplication-1.0.0.tar.gz
root/pypi de_duplication-1.0.0-py3.6.egg
root/pypi de_duplication-1.0.0-py3-none-any.whl