Gregory's Server
If anyone still has any doubt that using Internet in #Python package tests is bad, here's a new example: two packages failing because they resolved some domains, and DNS records changed (probably).
https://github.com/saghul/pycares/issues/187
https://github.com/saghul/aiodns/issues/107
@mgorny have you seen https://github.com/kichik/tlds/commits/master ? Before @hexa took care of it, it was just a single version package which was download on the fly the data :-(