loongson/pypi: links for ply-convert

loongson/mirror ply_convert-0.0.4.tar.gz
loongson/mirror ply_convert-0.0.4-py3-none-any.whl
loongson/mirror ply_convert-0.0.3.tar.gz
loongson/mirror ply_convert-0.0.3-py3-none-any.whl
loongson/mirror ply_convert-0.0.1.tar.gz
loongson/mirror ply_convert-0.0.1-py3-none-any.whl