Re: [gentoo-user] Recent change in python - some packages are not happy

[Mick]

On Saturday, 23 June 2018 10:30:09 BST Neil Bothwick wrote:
> On 23 June 2018 10:14:31 BST, Mick <michaelkintzios@×××××.com> wrote:
> >I came up to this today following a portage sync:
> >
> ># emerge -uaNDv world
> >
> >
> >These are the packages that would be merged, in order:
> >
> >Calculating dependencies /
> >
> >!!! Problem resolving dependencies for sys-devel/gdb from @selected
> >.. done!
> >
> >
> >!!! The ebuild selected to satisfy "sys-devel/gdb" has unmet
> >requirements.
> >- sys-devel/gdb-7.12.1::gentoo USE="client nls python server xml -lzma
> >-
> >multitarget -test -vanilla" ABI_X86="(64)"
> >PYTHON_SINGLE_TARGET="-python2_7 -
> >python3_4 -python3_5" PYTHON_TARGETS="python2_7 -python3_4 -python3_5"
> >
> >  The following REQUIRED_USE flag constraints are unsatisfied:
> >    python? ( exactly-one-of ( python_single_target_python2_7
> >
> >python_single_target_python3_4 python_single_target_python3_5 ) )
> >
> >The above constraints are a subset of the following complete
> >
> >expression:
> >    python? ( exactly-one-of ( python_single_target_python2_7
> >
> >python_single_target_python3_4 python_single_target_python3_5 )
> >python_single_target_python2_7? ( python_targets_python2_7 )
> >python_single_target_python3_4? ( python_targets_python3_4 )
> >python_single_target_python3_5? ( python_targets_python3_5 ) ) any-of (
> >client
> >server )
> >
> >(dependency required by "@selected" [set])
> >(dependency required by "@world" [argument])
> >
> >
> >The system is currently using python 3.5:
> >
> ># eselect python update
> >
> >Switching to python3.5
> >
> >Asus ~ # eselect python list
> >
> >Available Python interpreters, in order of preference:
> >
> >[1]   python3.5
> >
> >[2]   python2.7
> >
> >  [3]   python3.4 (uninstalled)
> >
> >Then noticed python-3.6.5 has been moved to stable, but the above won't
> >allow
> >me to proceed without --exclude gdb.  Other systems are similarly
> >refusing to
> >run their weekly update, but due to other packages, e.g.
> >libreoffice-bin.  Is
> >it a matter of waiting and resync'ing again later?
>
> Start with "grep - ir python /etc/portage". That found the source of the
> problem on one of my systems, I was setting PYTHON_SINGLE_TARGET for one
> package.

Thanks Neil, I already had a look just in case I had set something up and 
forgot about it.  This is all it showed:

# grep -ir python /etc/portage                                            
/etc/portage/package.use/package.use:=media-libs/lcms-1.19-r1 python       

-- 
Regards,
Mick