loongson/pypi: links for py3compat

loongson/mirror py3compat-0.4-py2.py3-none-any.whl
loongson/mirror py3compat-0.3.tar.gz
loongson/mirror py3compat-0.2.tar.gz
loongson/mirror py3compat-0.1.4.tar.gz
loongson/mirror py3compat-0.1.3.tar.gz
loongson/mirror py3compat-0.1.2.tar.gz
loongson/mirror py3compat-0.1.tar.gz