Libreoffice python scripting: crash on importing Gtk

[Gabor Karsay]

Running libreoffice 1:4.2.6.3-0ubuntu1 on trusty.

I put a script in ~/.config/libreoffice/4/user/Scripts/python which imports Gtk, and on importing it freezes libreoffice with this traceback:

gabor@mycomputer:~$ loffice
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: cannot register existing type 'GtkWidget'
  g_type = info.get_g_type()
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: cannot add class private field to invalid type '<invalid>'
  g_type = info.get_g_type()
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: cannot add private field to invalid (non-instantiatable) type '<invalid>'
  g_type = info.get_g_type()
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed
  g_type = info.get_g_type()
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: cannot register existing type 'GtkBuildable'
  g_type = info.get_g_type()
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE (interface_type)' failed
  g_type = info.get_g_type()
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: g_once_init_leave: assertion 'result != 0' failed
  g_type = info.get_g_type()

Steps to reproduce:
Put this minimal script in ~/.config/libreoffice/4/user/Scripts/python :

# -*- coding: utf-8 -*-

from gi.repository import Gtk

def HelloWorld():
 dialog = Gtk.MessageDialog(None, buttons=(Gtk.STOCK_OK, Gtk.ResponseType.OK), message_format="Hello World!")
 dialog.run()
 dialog.destroy()

Run it from Writer - Extras - Macros - Run macros (not sure about the english names, LANGUAGE=C libreoffice doesn't change the language)

Result: Libreoffice freezes, doesn't react anymore.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for libreoffice (Ubuntu) because there has been no activity for 60 days.]