Error running script with python 3.10

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1

I have a script that I regularly run to backup my gramps databases. At the start of the script I import ‘exportpkg’. Since I upgraded to Ubuntu 22.04 I am now getting the stack trace below. Given that the stack is started from an import, this seems like a bug in gramps. Have others seen this?

Ubuntu Linux 22.04
Gramps installed via deb version 5.1.5.
python 3.10

Traceback (most recent call last):
  File "/home/jpschewe/bin/gramps-backup", line 31, in <module>
    import gramps.plugins.export.exportpkg as exportpkg
  File "/usr/lib/python3/dist-packages/gramps/plugins/export/exportpkg.py", line 60, in <module>
    from gramps.gui.plug.export import WriterOptionBox
  File "/usr/lib/python3/dist-packages/gramps/gui/plug/__init__.py", line 31, in <module>
    from ._guioptions import make_gui_option, add_gui_options
  File "/usr/lib/python3/dist-packages/gramps/gui/plug/_guioptions.py", line 54, in <module>
    from .. import widgets
  File "/usr/lib/python3/dist-packages/gramps/gui/widgets/__init__.py", line 26, in <module>
    from .buttons import *
  File "/usr/lib/python3/dist-packages/gramps/gui/widgets/buttons.py", line 47, in <module>
    class IconButton(Gtk.Button):
  File "/usr/lib/python3/dist-packages/gramps/gui/widgets/buttons.py", line 49, in IconButton
    def __init__(self, func, handle, icon='gtk-edit', size=Gtk.IconSize.MENU):
AttributeError: type object 'IconSize' has no attribute 'MENU'
2

I suspect that the problem is that Gtk was also upgraded to a higher version. The Gtk.IconSize.MENU seems to have been deprecated for quite a while; the Gtk folks may have dropped support for that functionality.

Can you report on the Gtk version? This can be shown by starting Gramps with the -v option from the command line.

We will have to fix up Gramps to deal with this if the version of Gtk becomes common…

3

can you attache an example of your script that causes the problem?

4 
>gramps -v
Gramps Settings:
----------------
 python    : 3.10.4
 gramps    : 5.1.5
 gtk++     : 3.24.33
 pygobject : 3.42.1
 pango     : 1.50.6
 cairo     : 1.16.0
 pycairo   : 1.20.1
 osmgpsmap : 1.0
 GExiv2    : 0.10
 ICU       : not found
 PyICU     : not found
 o.s.      : linux
 kernel    : 5.18.10-76051810-generic
5

This script will cause the error

#!/usr/bin/env python3

import warnings
with warnings.catch_warnings():
    import gramps.plugins.export.exportpkg as exportpkg

>python3 --version
Python 3.10.4
6

Note that I also get a warning about how gtk is imported.

/usr/lib/python3/dist-packages/gramps/plugins/export/exportpkg.py:53: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '4.0') before import to ensure that the right version gets loaded.
7

my environment is different (probably simpler), but so far haven’t been able to reproduce your stack trace using the script you sent.

gramps -v

python : 3.10.6 (yours 3.10.4)
gramps : 5.1.5
gtk++ : 3.24.34 (yours 3.24.33)
pygobject : 3.42.2 (yours 3.42.1)
pango : 1.50.9
cairo : 1.16.0
pycairo : 1.20.1
osmgpsmap : 1.0
GExiv2 : 0.10
ICU : not found
PyICU : not found
o.s. : linux
kernel : 5.18.0-4-amd64

so I have slight newer versions of some things, Interestingly, your warning message has:
Use gi.require_version(‘Gtk’, ‘4.0’)

mine, with the slightly newer librarys suggests an older version:
Use gi.require_version(‘Gtk’, '3.0’)

“/usr/lib/python3/dist-packages/gramps/plugins/export/exportpkg.py:53: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version(‘Gtk’, ‘3.0’) before import to ensure that the right version gets loaded. from gi.repository import Gtk”

I’m just trying to find a simple case that causes your issue.
what am i missing?

8

I’m guessing something else in my environment is bringing in gtk 4.0 and gramps appears to only support gtk 3.0. Based on your warning I modified my script and this one runs without error

#!/usr/bin/env python3

import warnings
with warnings.catch_warnings():
    import gi
    gi.require_version('Gtk', '3.0')
    import gramps.plugins.export.exportpkg as exportpkg
9

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