cache/stable: links for spinstep

root/pypi spinstep-0.6.0a0.tar.gz
root/pypi spinstep-0.6.0a0-py3-none-any.whl
root/pypi spinstep-0.3.1a1.tar.gz
root/pypi spinstep-0.3.1a1-py3-none-any.whl