[Bug 896836] Re: Segmentation fault when asking help() for the list of modules

[Alec Warner]

On precise we hit this with gtk and osk (part of Onboard.)

Manually importing gtk causes the segfault to go away, but nothing
happens.

The segfault can also be reproduced by:

$ python
Python 2.7.3 (default, Aug  1 2012, 05:14:39)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from Onboard import osk
>>> import gtk
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
 from gtk import _gtk

** (python:24631): CRITICAL **: pyg_register_boxed: assertion `boxed_type != 0' failed
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: cannot register existing type `GdkDevice'
 from gtk import _gtk
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_get_qdata: assertion `node != NULL' failed
 from gtk import _gtk
Segmentation fault (core dumped)

So, importing gtk after osk from Onboard causes a segfault.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to python2.7 in Ubuntu.
https://bugs.launchpad.net/bugs/896836

Title:
  Segmentation fault when asking help() for the list of modules

Status in PyGTK: GTK+ for Python:
  New
Status in “python2.7” package in Ubuntu:
  Confirmed

Bug description:
  Using Python 2.7.2 on Oneiric (package version is 2.7.2-7ubuntu2), I'm
  getting a consistent segmentation fault when I open the interactive
  help in a Python shell (i.e. typing "help()" in the shell) and then
  ask for the list of modules (by typing "modules").

  The error code returned is as follows:
  Please wait a moment while I gather a list of all available modules...

  /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
  /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
    from gtk import _gtk

  ** (python:5116): CRITICAL **: pyg_register_boxed: assertion `boxed_type != 0' failed
  /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: cannot register existing type `GdkDevice'
    from gtk import _gtk
  /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_get_qdata: assertion `node != NULL' failed
    from gtk import _gtk
  Segmentation fault

To manage notifications about this bug go to:
https://bugs.launchpad.net/pygtk/+bug/896836/+subscriptions