jp4/cu102: links for extern

root/pypi extern-0.4.1.tar.gz
root/pypi extern-0.4.0.tar.gz
root/pypi extern-0.3.0.tar.gz
root/pypi extern-0.2.1.tar.gz
root/pypi extern-0.2.0.tar.gz
root/pypi extern-0.1.0.tar.gz
root/pypi extern-0.0.4.tar.gz
root/pypi extern-0.0.3.tar.gz