On my ~amd64 system, emerge world bail with * Error: The above package list contains packages which cannot be * installed at the same time on the same system. (dev-python/pillow-2.0.0-r1::gentoo, installed) pulled in by dev-python/pillow[tk?,python_targets_python2_7(-)] (dev-python/pillow[python_targets_python2_7(-)]) required by (virtual/python-imaging-1::gentoo, installed) dev-python/pillow[tk?,python_targets_python3_2(-)] (dev-python/pillow[python_targets_python3_2(-)]) required by (virtual/python-imaging-1::gentoo, installed) (dev-python/imaging-1.1.7-r4::gentoo, ebuild scheduled for merge) pulled in by dev-python/imaging required by (rox-extra/comicthumb-0.1::gentoo, installed) dev-python/imaging[tk?,python_targets_python2_7(-)] (dev-python/imaging[python_targets_python2_7(-)]) required by (virtual/python-imaging-1::gentoo, installed) Reproducible: Always Steps to Reproduce: 1. emerge -a --update --newuse --deep --with-bdeps y world 2. 3. If I replace dev-python/imaging by virtual/python-imaging into the ebuild, emerge world succeed.
Package has been treecleaned, see #471548 for details