Bug 576088

Summary:	circular dependency between dev-python/qtconsole and dev-python/ipython
Product:	Gentoo Linux	Reporter:	François Bissey <frp.bissey>
Component:	[OLD] Development	Assignee:	Python Gentoo Team <python>
Status:	RESOLVED FIXED
Severity:	normal	CC:	frp.bissey, jlec, sci
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description François Bissey 2016-03-01 10:21:26 UTC

When emerging ipython with the qt4 useflag there is a circular dependency:
 * Error: circular dependencies:

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

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


It could be broken by initially emerging ipython without qt4 but it could be solved at the ebuild level by moving qtconsole from RDEPEND to PDEPEND (as was done before for ipyparallel for exactly the same reasons).

Reproducible: Always

Comment 1 François Bissey 2016-03-01 10:22:35 UTC

Moving qtconsole from RDEPEND to PDEPEND in the ipython ebuild I meant. This applies to all ipython-4.* ebuilds.

Comment 2 Justin Lecher (RETIRED) gentoo-dev

2016-03-02 20:48:03 UTC

commit b3504dd7a88a7c23833de1cf1037e5d8f6e968a4
Author: Justin Lecher <jlec@gentoo.org>
Date:   Wed Mar 2 20:11:41 2016 +0000

    dev-python/ipython: Break circular dependency with dev-python/qtconsole

    Gentoo-Bug: https://bugs.gentoo.org/show_bug.cgi?id=576088

    Signed-off-by: Justin Lecher <jlec@gentoo.org>

    https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b3504dd7a88a7c23833de1cf1037e5d8f6e968a4