python plugins are currently broken

[Sathish Kumar]

the following error occurred while activating Magnatune / Jamendo in Edit>Plugin (in Rhythmbox 2.90.1 in Ubuntu 11.10 beta 1)

The plugin Magnature / Jamendo could not be loaded
a error occured: Dependecy shared plugin code failed to load

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: rhythmbox 2.90.1~20110802-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
Architecture: amd64
Date: Mon Sep 5 07:17:28 2011
ExecutablePath: /usr/bin/rhythmbox
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: rhythmbox
UpgradeStatus: No upgrade log present (probably fresh install)

[Pedro Villavicencio (pedro)]

it seems to be an issue with all the python plugins, try to activate any and you'll get:

/usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
  import gobject._gobject
Traceback (most recent call last):
  File "/usr/lib/rhythmbox/plugins/lyrics/lyrics.py", line 35, in <module>
    from LyricsConfigureDialog import LyricsConfigureDialog
  File "/usr/lib/rhythmbox/plugins/lyrics/LyricsConfigureDialog.py", line 36, in <module>
    class LyricsConfigureDialog (GObject.Object, PeasGtk.Configurable):
  File "/usr/lib/rhythmbox/plugins/lyrics/LyricsConfigureDialog.py", line 38, in LyricsConfigureDialog
    object = GObject.property(type=GObject.Object)
  File "/usr/lib/python2.7/dist-packages/gi/_gobject/propertyhelper.py", line 111, in __init__
    self.type = self._type_from_python(type)
  File "/usr/lib/python2.7/dist-packages/gi/_gobject/propertyhelper.py", line 202, in _type_from_python
    raise TypeError("Unsupported type: %r" % (type_,))
TypeError: Unsupported type: <type 'gobject.GObject'>

similar error is raised for every other plugin there.

[Martin Pitt (pitti)]

This is due to importing both the old static "gobject" and the GI "GObject" binding. You can't mix them.

[Pedro Villavicencio (pedro)]

And this is now fixed with latest upload. Thanks all.

[Oweoqi (oweoqi)]

This issue is still ongoing for me, is an update on the way?

[Xavier Guillot (valeryan-24)]

I confirm this bug is still present in last Oneiric and Rhythmbox updates, unable to set python plugins working.

[Mattias Eriksson (snaggen)]

This should be fixed upstream:
http://git.gnome.org/browse/rhythmbox/commit/?id=5e32ee5bfe915beccd804ef311724bb8fdc7bed9

[Mattias Eriksson (snaggen)]

The checkin message in the commit I link to says that it should fix this problem, but I cant seem to get rhythmbox to work using git master....

[Matthew Gregg (mcg)]

This bug is still marked fix released but it is not. Can we get this reopened and fixed?

[Olivier FAURAX (olivier-faurax)]

The magnatune plugin is the culprit.

Here the trace I have when loading the magnatune plugin:
/usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
  import gobject._gobject
TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases
**
ERROR:/build/buildd/pygobject-3.0.0/gi/_gobject/pygobject.c:929:pygobject_new_full: assertion failed: (tp != NULL)
Abandon

This is kind of critical, as rhythmbox refuses to start if magnatune is activated in the plugin panel.