# emerge -av eselect-repository
These are the packages that would be merged, in order:
Calculating dependencies /
!!! Problem resolving dependencies for app-eselect/eselect-repository
... done!
!!! The ebuild selected to satisfy "eselect-repository" has unmet requirements.
- app-eselect/eselect-repository-6::gentoo USE="" ABI_X86="(64)" PYTHON_SINGLE_TARGET="python3_6 -python3_4 -python3_5 -python3_7" PYTHON_TARGETS="python3_4 python3_5 -python3_6 -python3_7"
The following REQUIRED_USE flag constraints are unsatisfied:
python_single_target_python3_6? ( python_targets_python3_6 )
The above constraints are a subset of the following complete expression:
exactly-one-of ( python_single_target_python3_4 python_single_target_python3_5 python_single_target_python3_6 python_single_target_python3_7 ) python_single_target_python3_4? ( python_targets_python3_4 ) python_single_target_python3_5? ( python_targets_python3_5 ) python_single_target_python3_6? ( python_targets_python3_6 ) python_single_target_python3_7? ( python_targets_python3_7 )
Он же показывает, что в PYTHON_SINGLE_TARGET и так ровно одно значение - python3_6, что ему не нравится? Слава понятным диагностическим сообщениям!