loongson/pypi: links for loo-py

loongson/mirror loo.py-2020.2.tar.gz
loongson/mirror loo.py-2017.2.tar.gz
loongson/mirror loo.py-2017.1.tar.gz
loongson/mirror loo.py-2016.2.tar.gz
loongson/mirror loo.py-2016.1.1.tar.gz
loongson/mirror loo.py-2016.1.tar.gz