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** Attachment added: "CellRendererSpin Example"
   https://bugs.launchpad.net/bugs/908889/+attachment/2647838/+files/cellRendererSpin.py

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https://bugs.launchpad.net/bugs/908889

Title:
  Errors and segfaults when selecting CellRendererSpin

Status in “pygobject” package in Ubuntu:
  New

Bug description:
  I ran into some errors while trying out the CellRendererSpin example in the documentation:
  http://readthedocs.org/docs/python-gtk-3-tutorial/en/latest/cellrenderers.html#Gtk.CellRendererSpin

  I click a few times on a CellRendererSpin area until the spinbuttons
  show up and the value text is highlighted.  Then I click to select a
  different CellRendererSpin.  It doesn't seem 100% consistent every
  time, but after two or three tries going back and forth, I receive
  some errors on the console and eventually segfault.  Sometimes I get
  no errors before it segfaults, or only one of the two shown below.

  Configuration:
  Ubuntu 11.10 64 bit
  Python 2.7.2+
  python-gobject 3.0.0-0ubuntu4
  Gnome 3 Shell
  Lenovo Thinkpad W510 
  VGA compatible controller: nVidia Corporation GT216 [Quadro FX 880M] (rev a2)

  Console output:
  /usr/lib/python2.7/dist-packages/gi/types.py:43: Warning: g_object_notify: assertion `G_IS_OBJECT (object)' failed
    return info.invoke(*args, **kwargs)
  /usr/lib/python2.7/dist-packages/gi/types.py:43: Warning: g_object_notify: object class `GtkStyleContext' has no property named `accessible-value'
    return info.invoke(*args, **kwargs)
  Segmentation fault

  
  ------------------
  (program exited with code: 139)
  Press return to continue

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