More explicitly, a standard installation of Ubuntu only depends on (and leaves installed) Python 3: $ lxc launch ubuntu:16.10 yakkety [...] $ lxc exe

More explicitly, a standard installation of Ubuntu only depends on (and leaves installed) Python 3: $ lxc launch ubuntu:16.10 yakkety [...] $ lxc exec yakkety python || echo no py2 no py2 Python 2 is still available via a package, and in the main repository, which is what we track to deliver security (and critical bugfix) updates for. But we definitely see the importance of moving the ecosystem along -- despite the historical complexity of the transition, and the challenge in getting people to move from their comfort zone.