dev-python/logilab-common is broken with python3.3, bug #449276 so you need to drop py3.3 support from dev-python/astng and dev-python/pylint
+ 02 Apr 2013; Justin Lecher <jlec@gentoo.org> astng-0.24.2.ebuild, + metadata.xml: + Drop py 3.3 as dev-python/logilab-common doesn't support it, #464108 +