hypernu

GNU Guile - GNU’s programming and extension language https://www.gnu.org/software/guile/guile.html

GuixSD - GNU’s advanced distro and transactional package manager https://www.gnu.org/software/guix/

yan

Python ip2location http://www.ip2location.com/developers/python

Python calculate distance between two locations http://www.johndcook.com/blog/python_longitude_latitude/
http://andrew.hedges.name/experiments/haversine/