[deps] Upgrade minimum versions that have a chance to be used (!23) · Merge requests · cubicweb / cubes / jsonschema · GitLab

Nicola Spanti requested to merge topic/default/deps-upgrade into branch/default Jan 15, 2021

CubicWeb 3.26.19 is the last Python 2 compatible version.
Version 1.12 of six is the one of Debian 10 "Buster".
Python 2 is dead, but the lastest version (2.7) is still used.