loongson/pypi: links for arithmetic-parsing

loongson/mirror arithmetic-parsing-0.0.1.post3.tar.gz
loongson/mirror arithmetic_parsing-0.0.1.post3-py3-none-any.whl
loongson/mirror arithmetic-parsing-0.0.1.post2.tar.gz
loongson/mirror arithmetic_parsing-0.0.1.post2-py3-none-any.whl
loongson/mirror arithmetic-parsing-0.0.1.tar.gz
loongson/mirror arithmetic_parsing-0.0.1-py3-none-any.whl