loongson/pypi: links for threading2

loongson/mirror threading2-0.3.1.tar.gz
loongson/mirror threading2-0.2.1.tar.gz
loongson/mirror threading2-0.2.0.tar.gz
loongson/mirror threading2-0.1.4.tar.gz
loongson/mirror threading2-0.1.3.tar.gz
loongson/mirror threading2-0.1.2.tar.gz
loongson/mirror threading2-0.1.1.tar.gz
loongson/mirror threading2-0.1.0.tar.gz