Please bump and remove the latest version. There was a regression (https://bitbucket.org/pypa/setuptools/issues/502) which made many packages fail to install.
*** Bug 575724 has been marked as a duplicate of this bug. ***
*** Bug 575884 has been marked as a duplicate of this bug. ***
*** Bug 575850 has been marked as a duplicate of this bug. ***
*** Bug 575886 has been marked as a duplicate of this bug. ***
Committed as requested by jlec. commit 72c51ce323d3c026464c32c6a6e89aaff219d63c Author: David Seifert <soap@gentoo.org> Date: Sun Feb 28 18:39:09 2016 +0100 dev-python/packaging: Remove broken Gentoo-Bug: 575894 Package-Manager: portage-2.2.27 commit 7a2ed8b18d1b9af460e16fc04d08e5f03c699c8c Author: David Seifert <soap@gentoo.org> Date: Sun Feb 28 18:37:43 2016 +0100 dev-python/setuptools: Remove broken Gentoo-Bug: 575894 Package-Manager: portage-2.2.27 commit 3dd67bd2e5577c45127c428410bb1556498ceafc Author: David Seifert <soap@gentoo.org> Date: Sun Feb 28 18:36:17 2016 +0100 dev-python/packaging: Version bump Gentoo-Bug: 575894 Package-Manager: portage-2.2.27 commit f99003d30fa6c867192ca5dd7c8aa473c8e7e648 Author: David Seifert <soap@gentoo.org> Date: Sun Feb 28 18:32:49 2016 +0100 dev-python/setuptools: Version bump Gentoo-Bug: 575894 Package-Manager: portage-2.2.27