jp4/cu102: links for chemstruct

root/pypi chemstruct-2019.6.2.tar.gz
root/pypi chemstruct-2019.6.2-py3-none-any.whl
root/pypi chemstruct-2019.6.1.tar.gz
root/pypi chemstruct-2019.6.1-py3-none-any.whl