root/pypi: links for pyblackbird

root/pypi pyblackbird-0.6.tar.gz
root/pypi pyblackbird-0.6-py3-none-any.whl
root/pypi pyblackbird-0.5.tar.gz
root/pypi pyblackbird-0.4.tar.gz
root/pypi pyblackbird-0.3.tar.gz