[ebuild     U ] dev-python/PyQt5-5.15.1 [5.14.2-r1] USE="bluetooth dbus examples gui multimedia network opengl printsupport ssl svg webchannel widgets -debug -declarative -designer -gles2-only -help -location -networkauth -positioning -sensors -serialport -sql -testlib -webkit -websockets -x11extras -xmlpatterns" PYTHON_TARGETS="python3_8* (-python3_6) -python3_7* -python3_9"

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

dev-python/PyQt5:0

  (dev-python/PyQt5-5.15.1:0/0::gentoo, ebuild scheduled for merge) USE="bluetooth dbus examples gui multimedia network opengl printsupport ssl svg webchannel widgets -debug -declarative -designer -gles2-only -help -location -networkauth -positioning -sensors -serialport -sql -testlib -webkit -websockets -x11extras -xmlpatterns" ABI_X86="(64)" PYTHON_TARGETS="python3_8 (-python3_6) -python3_7 -python3_9" pulled in by
    =dev-python/PyQt5-5.15.1::gentoo (Argument)

  (dev-python/PyQt5-5.14.2-r1:0/0::gentoo, installed) USE="bluetooth dbus examples gui multimedia network opengl printsupport ssl svg webchannel widgets -debug -declarative -designer -gles2-only -help -location -networkauth -positioning -sensors -serialport -sql -testlib -webkit -websockets -x11extras -xmlpatterns" ABI_X86="(64)" PYTHON_TARGETS="python3_7 (-python3_6) -python3_8 -python3_9" pulled in by
    dev-python/PyQt5[python_targets_python3_7(-)] required by (media-gfx/krita-4.2.9:5/5::gentoo, installed) USE="gif gsl jpeg pdf raw tiff -color-management -debug -fftw -heif -openexr -qtmedia -test -vc" ABI_X86="(64)" PYTHON_SINGLE_TARGET="python3_7 (-python3_6) -python3_8 -python3_9"