root/pypi: links for pychangcooper

root/pypi pychangcooper-0.6.0.tar.gz
root/pypi pychangcooper-0.5.1.tar.gz
root/pypi pychangcooper-0.5.1-py3-none-any.whl
root/pypi pychangcooper-0.2.0-py3.7.egg
root/pypi pychangcooper-0.2.0-py2.7.egg