On Friday 15 June 2012 14:04:42 Thomas Kahle wrote:
> On 12:14 Fri 15 Jun 2012, Christopher Schwan wrote:
> > On Friday 15 June 2012 10:52:41 Thomas Kahle wrote:
> > > Hi,
> > > 
> > > I'm running sage on a mostly stable amd64 system.  I wonder if somebody
> > > else does this and how they keep their keywords up-to-date.  The
> > > autounmask feature of portage is a bit of help on first install, but
> > > quite useless to keep the sage tree in sync.  Surely one could make a
> > > script that updates the keyword file based on the latest versions in
> > > s-o-g.  Has anyone done this or implemented some other solution?
> > > 
> > > Thanks,
> > > Thomas
> > 
> > I am also using mostly stable amd64. For the keywords we have the file
> > package.keywords/sage which works quite well (see also the README). Did
> > you
> > see that file/do you have any problems with it?
> 
> Oh yes.  Sorry for not reading the manual.  Now I have an up-to-date
> package.keywords and I'm back to the case where portage can't make up
> its mind which version of a package to install:
> 
> !!! Multiple package instances within a single package slot have been pulled
> !!! into the dependency graph, resulting in a slot conflict:
> 
> dev-python/pexpect:0
> 
>   (dev-python/pexpect-2.4-r1::sage-on-gentoo, ebuild scheduled for merge)
> pulled in by (no parents that aren't satisfied by other packages in this
> slot)
> 
>   (dev-python/pexpect-2.0-r1::sage-on-gentoo, installed) pulled in by
>     ~dev-python/pexpect-2.0 required by
> (sci-mathematics/sage-notebook-0.8.29-r1::sage-on-gentoo, ebuild scheduled
> for merge) (and 1 more with the same problem)
> 
> sci-mathematics/maxima:0
> 
>   (sci-mathematics/maxima-5.27.0-r1::gentoo, ebuild scheduled for merge)
> pulled in by (no parents that aren't satisfied by other packages in this
> slot)
> 
>   (sci-mathematics/maxima-5.26.0::gentoo, installed) pulled in by
>     ~sci-mathematics/maxima-5.26.0[ecls] required by
> (sci-mathematics/sage-5.0-r1::sage-on-gentoo, installed)
> 
> dev-python/numpy:0
> 
>   (dev-python/numpy-1.5.1::sage-on-gentoo, installed) pulled in by
>     ~dev-python/numpy-1.5.1 required by
> (sci-mathematics/sage-5.0-r1::sage-on-gentoo, installed)
> 
>   (dev-python/numpy-1.6.1-r1::gentoo, ebuild scheduled for merge) pulled in
> by (no parents that aren't satisfied by other packages in this slot)
> 
> sci-mathematics/singular:0
> 
>   (sci-mathematics/singular-3.1.3.3::gentoo, installed) pulled in by
>     ~sci-mathematics/singular-3.1.3.3 required by
> (sci-mathematics/sage-5.0-r1::sage-on-gentoo, installed)
> 
>   (sci-mathematics/singular-3.1.4-r1::gentoo, ebuild scheduled for merge)
> pulled in by (no parents that aren't satisfied by other packages in this
> slot)

Hm, I saw this kind of problem before and also experienced it myself with 
numpy, but I never understood _why_ it happened. Did you check that these 
package are not in world?