'emerge veusz' fails with: root@lynx:/usr/share/applications/RootRlogin/TECNETAIR(93)# emerge -vuvDN --backtrack=300 veusz These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] sci-astronomy/wcslib-5.15:0/5::gentoo USE="doc* fits fortran tools -pgplot -static-libs" 0 KiB [ebuild N ] dev-python/pyemf-2.0.0::gentoo PYTHON_TARGETS="python2_7" 191 KiB [ebuild UD ] dev-python/PyQt4-4.11.4-r1::gentoo [4.12_pre1606101416-r1::gentoo] USE="X compat dbus declarative designer doc examples kde multimedia opengl script sql svg webkit -debug -help -phonon -scripttools -testlib -xmlpatterns" PYTHON_TARGETS="python2_7 python3_4 (-python3_3) -python3_5*" 11,052 KiB [ebuild N ] dev-python/pytest-3.0.2::gentoo USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 -pypy -pypy3 (-python3_3) -python3_5" 711 KiB [ebuild N ] dev-python/h5py-2.6.0::gentoo USE="doc examples mpi {-test}" PYTHON_TARGETS="python2_7 python3_4 (-python3_3) -python3_5" 0 KiB [ebuild N ] sci-visualization/veusz-1.24::gentoo USE="dbus doc emf fits hdf5 -minuit {-test} -vo" PYTHON_TARGETS="python2_7 python3_4 -python3_5" 1,813 KiB [ebuild N ] dev-python/wcsaxes-0.9::gentoo USE="-doc {-test}" PYTHON_TARGETS="python2_7 python3_4 -python3_5" 209 KiB [ebuild R ] dev-python/astropy-1.2.1::gentoo USE="doc* {-test}" PYTHON_TARGETS="python2_7 python3_4 -python3_5" 0 KiB Total: 8 packages (1 downgrade, 5 new, 2 reinstalls), Size of downloads: 13,974 KiB !!! Multiple package instances within a single package slot have been pulled !!! into the dependency graph, resulting in a slot conflict: dev-python/PyQt4:0 (dev-python/PyQt4-4.11.4-r1:0/0::gentoo, ebuild scheduled for merge) pulled in by <dev-python/PyQt4-4.12_pre1604171631[compat,X,svg,python_targets_python2_7(-)?,python_targets_python3_4(-)?,python_targets_python3_5(-)?,-python_single_target_python2_7(-),-python_single_target_python3_4(-),-python_single_target_python3_5(-)] required by (sci-visualization/veusz-1.24:0/0::gentoo, ebuild scheduled for merge) ^ ^^^^^^^^^^^^^^^^^^ (dev-python/PyQt4-4.12_pre1606101416-r1:0/0::gentoo, installed) pulled in by dev-python/PyQt4[python_targets_python2_7(-)?,python_targets_python3_3(-)?,python_targets_python3_4(-)?,python_targets_python3_5(-)?,-python_single_target_python2_7(-),-python_single_target_python3_3(-),-python_single_target_python3_4(-),-python_single_target_python3_5(-)] required by (dev-python/pyudev-0.20.0:0/0::gentoo, installed)
veusz-1.24 is incompatible with >=PyQt4-4.12, see bug #581738. So, the only way to proceed is: remove pyudev-0.20.0; emerge PyQt4-4.11 and veusz-1.24; re-emerge pyudev-0.20.0 (which seems to be compatible with PyQt4-4.11).
It seems this bug is obsolete, why was it not closed?
