All the python openstack packages (with ~amd64 keyword) now want >=dev-python/pbr-2.0. All except dev-python/python-novaclient. The latest version in portage is currently 7.1.1, and it's still on: CDEPEND=">=dev-python/pbr-1.8[${PYTHON_USEDEP}] <dev-python/pbr-2.0.0[${PYTHON_USEDEP}]" The latest python-novaclient in github is fixed; it wants: pbr!=2.1.0,>=2.0.0 # Apache-2.0 Could we get a version bump? This situation is causing upgrades to be blocked due to the pbr discrepancy. pbr is not a slotted package.
7.1.2 will have the fix, 8.0.0 is for pike which isn't officially out yet, should be tagged today sometime
7.1.2 is in tree