root/pypi: links for pretools

root/pypi pretools-0.3.0.tar.gz
root/pypi pretools-0.3.0-py3-none-any.whl
root/pypi pretools-0.2.0.tar.gz
root/pypi pretools-0.2.0-py3-none-any.whl
root/pypi pretools-0.1.0.tar.gz
root/pypi pretools-0.1.0-py3-none-any.whl
root/pypi pretools-0.0.0.tar.gz
root/pypi pretools-0.0.0-py3-none-any.whl