Circular dependencies

[hungshihhan]

I followed the instruction to install sage with emerge -av sage but could not proceed due to circular dependencies. Here is the sequence:

 * Error: circular dependencies:

(dev-python/ipykernel-4.3.0:0/0::gentoo, ebuild scheduled for merge) depends on
 (dev-python/ipython-4.0.3:0/0::gentoo, ebuild scheduled for merge) (buildtime)
  (dev-python/qtconsole-4.2.0:0/0::gentoo, ebuild scheduled for merge) (runtime)
   (dev-python/ipykernel-4.3.0:0/0::gentoo, ebuild scheduled for merge) (buildtime)

It might be possible to break this cycle
by applying the following change:
- dev-python/ipython-4.0.3 (Change USE: -qt4)

Note that this change can be reverted, once the package has been installed.

I wonder if removing qt4 USE flag causes any issue for KDE users. Thank you.

[kiwifb]

Doing

USE=-qt4 emerge -1v ipython

and then go

emerge -uDNv sage

will work. This not technically a bug with the overlay but one with the main tree. I filled a bug for it recently https://bugs.gentoo.org/show_bug.cgi?id=576088 unfortunately jlec only fixed it in ipython-4.1.1 and not in any 4.0.x ebuild.

[hungshihhan]

I tried to include -qt4 for dev-python/ipython, but circular dependencies still happen:

 * Error: circular dependencies:

(dev-python/ipykernel-4.3.0:0/0::gentoo, ebuild scheduled for merge) depends on
 (dev-python/ipython-4.0.3:0/0::gentoo, ebuild scheduled for merge) (buildtime)
  (dev-python/notebook-4.0.6:0/0::science, ebuild scheduled for merge) (runtime)
   (dev-python/ipykernel-4.3.0:0/0::gentoo, ebuild scheduled for merge) (buildtime)

 * Note that circular dependencies can often be avoided by temporarily
 * disabling USE flags that trigger optional dependencies.

Removing notebook USE flag for dev-python/ipython will prevent installing dev-python/notebook, which seem necessary to sage.

[kiwifb]

There must be a similar dependency on the notebook, although I thought I had fixed it before it was moved from the science overlay to the main tree. Try

USE="-qt4 -notebook" emerge -1v ipython

[carlosggarcia]

That solve the circular dependencies, but now I've got a blockage,

[blocks B      ] app-eselect/eselect-blas ("app-eselect/eselect-blas" is blocking sci-libs/gsl-2.1, app-admin/eselect-1.4.5-r103)
[blocks B      ] app-eselect/eselect-lapack ("app-eselect/eselect-lapack" is blocking sci-libs/gsl-2.1, app-admin/eselect-1.4.5-r103)
 * Error: The above package list contains packages which cannot be
 * installed at the same time on the same system.
  (app-eselect/eselect-blas-0.1:0/0::gentoo, ebuild scheduled for merge) pulled in by
    app-eselect/eselect-blas required by (sci-libs/blas-reference-20070226-r4:0/0::gentoo, ebuild scheduled for merge)
  (app-eselect/eselect-lapack-0.1:0/0::gentoo, ebuild scheduled for merge) pulled in by
    app-eselect/eselect-lapack required by (sci-libs/lapack-reference-3.2.1-r4:0/0::gentoo, ebuild scheduled for merge)

[kiwifb]

It looks like you haven't migrated from the main tree based blas/lapack to the science overlay one. Please follow the instructions at https://wiki.gentoo.org/wiki/User_talk:Houseofsuns

[carlosggarcia]

It worked. I didn't know I had migrate. Thanks!

[kiwifb]

Your keywords probably did that to you.