Re: using python: crash, when importing gtk

[Jean Brefort <jean brefort normalesup org>]

Le vendredi 04 mai 2012 à 07:32 +0200, scrutinizer gmx at a écrit :
> -------- Original-Nachricht --------
> > Datum: Wed, 02 May 2012 14:06:41 +0200
> > Von: "Jean Bréfort" <jean brefort normalesup org>
> > An: scrutinizer gmx at
> > CC: gnumeric-list gnome org
> > Betreff: Re: using python: crash, when importing gtk
>
> > 1.11.3 should NOT build with Python support. It should fail at configure
> > stage.
> Hello Jean, I don't understand why.

It should fail because things can't work currently. It does not fail
actually, and this is a bug.

> > You are using pygtk which depends on gtk+-2.0 from a gtk+-3.0 program,
> > so the crash is anticipated.
>
> I tried using PyGI instead. A dialog appears, but then, after pressing the ok button, gnumeric hangs.
>
> gnumeric
>
> /usr/lib/python2.7/dist-packages/gi/_gobject/constants.py:24: Warning: g_boxed_type_register_static: 
> assertion `g_type_from_name (name) == 0' failed
>   from . import _gobject

Hmm, this is clearly a bug. Something tries to initialize gobject type a
second time, and, of course, this fails. I'm suspecting this occurs
during gnm_python_init() execution. This code needs much love in order
to work. It currently imports pygtk wich is not compatible with gtk-3.

Regards,
Jean

> the mini test plugin:
>
> from gi.repository import Gtk
>
> import Gnumeric
>
> # Called when user presses "OK" in dialog.
> def cb_ok_test (dialog, event):
>     dialog.destroy()
>
> # Populate sheet and show dialog.
> def f_transpose(gui):
>
>     dialog = Gtk.MessageDialog(None,
>                                Gtk.DialogFlags.DESTROY_WITH_PARENT,
>                                Gtk.MessageType.INFO,
>                                Gtk.ButtonsType.OK,
>                                "Press OK to transpose")
>     dialog.connect('response', cb_ok_test)
>     dialog.run()
>
> # This dictinary binds verbs to Python functions.
> transpose_ui_actions = {
>     'Transpose': f_transpose,
> }
>
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