loongson/pypi: links for backpyf

loongson/mirror backpyf-1.0.0.post1.tar.gz
loongson/mirror backpyf-1.0.0.post1-py3-none-any.whl
loongson/mirror backpyf-1.0.0.tar.gz
loongson/mirror backpyf-1.0.0-py3-none-any.whl
loongson/mirror backpyf-0.9.72b4.post1.tar.gz
loongson/mirror backpyf-0.9.72b4.post1-py3-none-any.whl
loongson/mirror backpyf-0.9.72b4.tar.gz
loongson/mirror backpyf-0.9.72b4-py3-none-any.whl