[orca-list] Orca doesn't start here

[Didier Spaier <didier slint fr>]

Hello,

I just upgraded orca (up to date master) and some deps:

meson-0.47.0-x86_64-1slint
ninja-1.8.2-x86_64-1slint
atk-2.29.2-x86_64-1slint
at-spi2-core-2.29.1-x86_64-1slint
at-spi2-atk-2.29.1-x86_64-1slint
orca-gita3865e9-x86_64-1slint

orca doesn't start after that:

didier[~]$ orca &
[1] 26914
didier[~]$ Traceback (most recent call last):
  File "/usr/bin/orca.bin", line 272, in <module>
    sys.exit(main())
  File "/usr/bin/orca.bin", line 269, in main
    return orca.main()
  File "/usr/lib64/python3.5/site-packages/orca/orca.py", line 697, in main
    init(pyatspi.Registry)
  File "/usr/lib64/python3.5/site-packages/orca/orca.py", line 520, in init
    loadUserSettings()
  File "/usr/lib64/python3.5/site-packages/orca/orca.py", line 358, in loadUserSettings
    script = _scriptManager.getDefaultScript()
  File "/usr/lib64/python3.5/site-packages/orca/script_manager.py", line 210, in getDefaultScript
    from .scripts import default
  File "/usr/lib64/python3.5/site-packages/orca/scripts/default.py", line 48, in <module>
    import orca.orca_gui_commandlist as commandlist
  File "/usr/lib64/python3.5/site-packages/orca/orca_gui_commandlist.py", line 30, in <module>
    from gi.repository import GObject, Gdk, Gtk
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 664, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 634, in _load_backward_compatible
  File "/usr/lib64/python3.5/site-packages/gi/importer.py", line 146, in load_module
    dynamic_module = load_overrides(introspection_module)
  File "/usr/lib64/python3.5/site-packages/gi/overrides/__init__.py", line 125, in load_overrides
    override_mod = importlib.import_module(override_package_name)
  File "/usr/lib64/python3.5/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/usr/lib64/python3.5/site-packages/gi/overrides/Gtk.py", line 118, in <module>
    class Widget(Gtk.Widget):
  File "/usr/lib64/python3.5/site-packages/gi/module.py", line 220, in __getattr__
    wrapper = metaclass(name, bases, dict_)
TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the 
metaclasses of all its bases

Any clue?

Didier