[blocks B     ] kde-base/libknotificationitem:4.3[-kdeprefix] ("kde-base/libknotificationitem:4.3[-kdeprefix]" is blocking kde-base/kdelibs-4.4.5-r4)
[blocks B     ] kde-base/plasma-workspace:4.3[-kdeprefix] ("kde-base/plasma-workspace:4.3[-kdeprefix]" is blocking kde-base/kdelibs-4.4.5-r4)
[blocks B     ] kde-base/libkworkspace:4.3[-kdeprefix] ("kde-base/libkworkspace:4.3[-kdeprefix]" is blocking kde-base/kdelibs-4.4.5-r4)

 * Error: The above package list contains packages which cannot be
 * installed at the same time on the same system.

  (kde-base/libknotificationitem-4.3.5, installed) pulled in by
    >=kde-base/libknotificationitem-4.3.5[-aqua,-kdeprefix] required by (kde-base/pykde4-4.3.5-r1, installed)
    >=kde-base/libknotificationitem-4.3.5[-aqua,-kdeprefix] required by (kde-base/akregator-4.3.5, installed)
    >=kde-base/libknotificationitem-4.3.5[-aqua,-kdeprefix] required by (kde-base/kcmshell-4.3.5, installed)
    (and 92 more)

  (kde-base/kdelibs-4.4.5-r4, ebuild scheduled for merge) pulled in by
    >=kde-base/kdelibs-4.3.5[-aqua,-kdeprefix] required by (kde-base/soliduiserver-4.3.5, installed)
    >=kde-base/kdelibs-4.3.5[-aqua,-kdeprefix] required by (kde-base/kscreensaver-4.3.5, installed)
    >=kde-base/kdelibs-4.3.5[-aqua,-kdeprefix] required by (kde-base/kdialog-4.3.5, installed)
    (and 116 more)

  (kde-base/plasma-workspace-4.3.5, installed) pulled in by
    >=kde-base/plasma-workspace-4.3.5[-aqua,-kdeprefix] required by (kde-base/kdebase-startkde-4.3.5, installed)

  (kde-base/libkworkspace-4.3.5, installed) pulled in by
    >=kde-base/libkworkspace-4.3.5[-aqua,-kdeprefix] required by (kde-base/systemsettings-4.3.5, installed)
    >=kde-base/libkworkspace-4.3.5[-aqua,-kdeprefix] required by (kde-base/khotkeys-4.3.5, installed)
    >=kde-base/libkworkspace-4.3.5[-aqua,-kdeprefix] required by (kde-base/krunner-4.3.5, installed)
    (and 4 more)