pylint works fine with Python 3.3 (tested with PYTHON_COMPAT_OVERRIDE="python3_3"). Please add PYTHON__COMPAT="python3_3" for it and its dependencies still lacking it: dev-python/astng-0.24.2 dev-python/logilab-common-0.59.0 dev-python/pylint-0.27.0-r1
*pylint-0.28.0 (21 Jun 2013) 21 Jun 2013; Ian Delaney <idella4@gentoo.org> +pylint-0.28.0.ebuild, pylint-0.27.0-r1.ebuild: fix to dep astng, tidy to test phase, bump, add py3.3 support