[maemo-developers] PyGTK upgrade

[From: Jeffrey Barish]

Lauro Moura wrote:

> On Wed, Oct 1, 2008 at 1:36 AM, Jeffrey Barish
> <jeff_barish at earthlink.net> wrote:
>> When is PyGTK going to be upgraded to 2.12?  gtk.CellLayout has 7 methods
>> that all require the cellrenderer.  gtk.ComboBoxEntry creates and packs
>> the cellrenderer automatically, so without the get_cells method there
>> doesn't appear to be a way to use any of those methods nor to change
>> attributes of
>> the cellrenderer.  get_cells is available only in PyGTK version >= 2.12.
>> I've been waiting since April for the upgrade.
> 
> Jeffrey, PyGtk 2.12 is available in Diablo extras since early July[1]
> and in chinook since last october[2], but maybe these functions aren't
> exported. Could you provide a more detailed list of these functions?
> 
> 
> [1] http://repository.maemo.org/extras/pool/diablo/free/p/python-gtk2/
> [2] http://repository.maemo.org/extras/pool/chinook/free/p/python-gtk2/

First, I learned a better way to get version information.  Here's what I
have:

gtk.gtk_version = 2.10.12
gtk.pygtk_version = 2.12.1

It appears that the implementation of gtk.CellLayout is incomplete:

import gtk
c = gtk.CellLayout()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NotImplementedError: gtk.CellLayout can not be constructed

According to the documentation, CellLayout has been available since version
2.4 of PyGTK.

I am actually using a ComboBoxEntry, but it inherits from CellLayout.  The 7
methods that I mentioned are pack_start, pack_end, set_attributes,
add_attributes, clear_attributes, set_cell_data_func, and reorder.  They
all appear as methods of ComboBoxEntry, although they are actually supposed
to be methods of CellLayout.  The one method of CellLayout that is missing
from ComboBoxEntry is get_cells.  My point in the previous message was that
the 7 extant methods of CellLayout all require a cell as an argument. 
Normally, one would get the cell by calling get_cells, but get_cells is not
extant.  Although CellLayout has supposedly been available since version
2.4, get_cells has been available only since 2.12.  I mistakenly believed
that I had version 2.10 of PyGTK, hence my eagerness for version 2.12. 
However, assuming that gtk.pygtk_version is the reliable way to get the
version of PyGTK, it seems that I do, in fact, have version 2.12 already. 
Accordingly, it seems that get_cells should be available.
-- 
Jeffrey Barish