according to https://github.com/certbot/certbot/issues/3179 certbot supports python 3 yet the ebuild builds with python 2.7 only. # equery u certbot [ Legend : U - final flag setting for installation] [ : I - package is installed with flag ] [ Colors : set, unset ] * Found these USE flags for app-crypt/certbot-0.8.1-r2: U I + + python_targets_python2_7 : Build with Python 2.7 - - test : Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore
Have you tested with Python 3?
As long as setup.py doesn't list it, I won't add it. https://github.com/certbot/certbot/blob/master/setup.py#L102