loongson/pypi: links for py3traits

loongson/mirror py3traits-1.2.1-py2.py3-none-any.whl
loongson/mirror py3traits-1.2.0-py2.py3-none-any.whl
loongson/mirror py3traits-1.1.0-py2.py3-none-any.whl
loongson/mirror py3traits-1.0.1-py2.py3-none-any.whl
loongson/mirror py3traits-1.0.0-py2.py3-none-any.whl