loongson/pypi: links for x2py

loongson/mirror x2py-0.4.3.tar.gz
loongson/mirror x2py-0.4.3-py3-none-any.whl
loongson/mirror x2py-0.4.2.tar.gz
loongson/mirror x2py-0.4.2-py3-none-any.whl
loongson/mirror x2py-0.4.1.tar.gz
loongson/mirror x2py-0.4.1-py3-none-any.whl