bug#64357: Orca screenreader crashes on start

[Nathan Dehnel]

guix ac86174

/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/module.py:163:
Warning: cannot register existing type 'AtkImplementorIface'
  g_type = info.get_g_type()
/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/module.py:197:
Warning: g_type_get_qdata: assertion 'node != NULL' failed
  type_ = g_type.pytype
/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/types.py:247:
Warning: cannot register existing type 'AtkImplementorIface'
  register_interface_info(cls.__info__.get_g_type())
Traceback (most recent call last):
  File "/gnu/store/8kfgp7rsls97yrv06d7dgzcgmdcyji5z-orca-42.3/bin/.orca-real",
line 32, in <module>
    import pyatspi
  File 
"/gnu/store/5fy25w379g86rdkkrck6bga946n4g275-python-pyatspi-2.45.90/lib/python3.10/site-packages/pyatspi/__init__.py",
line 20, in <module>
    from gi.repository import Gtk
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 672, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 632, in _load_backward_compatible
  File 
"/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/importer.py",
line 150, in load_module
    dynamic_module = load_overrides(introspection_module)
  File 
"/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/overrides/__init__.py",
line 118, in load_overrides
    override_mod = importlib.import_module(override_package_name)
  File 
"/gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7/lib/python3.10/importlib/__init__.py",
line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File 
"/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/overrides/Gtk.py",
line 111, in <module>
    class Widget(Gtk.Widget):
  File 
"/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/module.py",
line 168, in __getattr__
    interfaces = tuple(interface for interface in
get_interfaces_for_object(info)
  File 
"/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/module.py",
line 94, in get_interfaces_for_object
    interfaces.append(getattr(module, name))
  File 
"/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/module.py",
line 207, in __getattr__
    wrapper = metaclass(name, bases, dict_)
  File 
"/gnu/store/c6n7h131fdckr39yv1rc7z9fbm0yk177-python-pygobject-3.42.2/lib/python3.10/site-packages/gi/types.py",
line 247, in __init__
    register_interface_info(cls.__info__.get_g_type())
TypeError: must be an interface