loongson/pypi: links for shell-py

loongson/mirror shell.py-0.5.3.tar.gz
loongson/mirror shell.py-0.5.2.tar.gz
loongson/mirror shell.py-0.5.1.tar.gz
loongson/mirror shell.py-0.5.0.tar.gz
loongson/mirror shell.py-0.4.0.tar.gz