Missing Gtk when installing Tryton 6.0 client with pip3

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1

I’m trying to install tryton 6 client on a Leap 15.2 machine with
KDE Plasma Version: 5.18.6
KDE Frameworks Version: 5.71.0
Qt Version: 5.12.7

test@localhost:~> pip3 install --user --upgrade tryton
Collecting tryton
  Using cached https://files.pythonhosted.org/packages/c2/16/4ea8ca2c6398e6edb33c96b581abb46badaf803c9384c6f9b8d0690480e3/tryton-6.0.0-py3-none-any.whl
Requirement not upgraded as not directly required: python-dateutil in ./.local/lib/python3.6/site-packages (from tryton) (2.8.1)
Requirement not upgraded as not directly required: pycairo in /usr/lib64/python3.6/site-packages (from tryton) (1.20.0)
Requirement not upgraded as not directly required: PyGObject in /usr/lib64/python3.6/site-packages (from tryton) (3.34.0)
Requirement not upgraded as not directly required: six>=1.5 in /usr/lib/python3.6/site-packages (from python-dateutil->tryton) (1.14.0)
Installing collected packages: tryton
Successfully installed tryton-6.0.0

So far so good. Starting the client:

test@localhost:~> .local/bin/tryton
Traceback (most recent call last):
  File ".local/bin/tryton", line 53, in <module>
    from tryton.client import main
  File "/home/test/.local/lib/python3.6/site-packages/tryton/__init__.py", line 7, in <module>
    gi.require_version('Gtk', '3.0')
  File "/usr/lib64/python3.6/site-packages/gi/__init__.py", line 129, in require_version
    raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace Gtk not available

Should this dependency not be resolved by the installer?

2

Python GTK can not be installed with pip it should be installed on the system packages.

If you install it the issue will be fixed.

3

…which is usually not the case for a Plasma-Desktop

python3-gobject Version 3.34.0 is installed, gobject-introspection 1.62.0 as well

4

OS: Archlinux

plasma-framework 5.82.0-1
plasma-desktop 5.21.5-1
gobject-introspection 1.68.0-1

[test@test ~]$ pip install --user tryton
Collecting tryton
  Downloading tryton-6.0.0-py3-none-any.whl (617 kB)
     |████████████████████████████████| 617 kB 2.9 MB/s 
Requirement already satisfied: python-dateutil in /usr/lib/python3.9/site-packages (from tryton) (2.8.1)
Requirement already satisfied: PyGObject in /usr/lib/python3.9/site-packages (from tryton) (3.40.1)
Requirement already satisfied: pycairo in /usr/lib/python3.9/site-packages (from tryton) (1.20.0)
Requirement already satisfied: six>=1.5 in /usr/lib/python3.9/site-packages (from python-dateutil->tryton) (1.15.0)
Installing collected packages: tryton
Successfully installed tryton-6.0.0

[test@test ~]$ .local/bin/tryton

works for me.

5

Yes, trying this on a Tumbleweed system with LXQT it starts, but crashes later at pygtkcompat.
So, is this maybe a version issue of some GTK packages on Leap?