GTK4 PyGObject testing?

Platform
,
1

Is there an easy way to start testing/playing around with new features with python applications for gtk4? I’m using Fedora 32 with gtk4 package installed. Do I need to grab a specific branch of pygobject? Any instructions out there or link to help?

1 Like
2

You can already use GTK4 from Python:

import gi
gi.require_version('Gtk', '4.0')
from gi.repository import Gtk

The main issue is that PyGObject has a bunch of overrides for GTK2 and GTK3 to make the API more “Pythonic”, and currently there are no overrides for GTK4.

2 Likes
3

I get the following error doing that

Traceback (most recent call last):
File "example.py", line 3, in <module>
from gi.repository import Gtk
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
File "<frozen importlib._bootstrap>", line 618, in _load_backward_compatible
File "/usr/lib64/python3.8/site-packages/gi/importer.py", line 146, in load_module
dynamic_module = load_overrides(introspection_module)
File "/usr/lib64/python3.8/site-packages/gi/overrides/__init__.py", line 118, in load_overrides
override_mod = importlib.import_module(override_package_name)
File "/usr/lib64/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/usr/lib64/python3.8/site-packages/gi/overrides/Gtk.py", line 173, in <module>
class Container(Gtk.Container, Widget):
File "/usr/lib64/python3.8/site-packages/gi/module.py", line 131, in __getattr__
raise AttributeError("%r object has no attribute %r" % (
AttributeError: 'gi.repository.Gtk' object has no attribute 'Container'

I have gtk4-3.98.4-1.fc32.x86_64 and gtk4-devel-3.98.4-1.fc32.x86_64 installed.

4

You probably need pygobject from the main development branch.

In any case, this is the issue with the overrides, which needs to be fixed in pygobject.

Edited to add: there are various open merge requests about GTK4 updates:

1 Like
5

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.