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Created by GeoLang@George-Langroudi

GTK4 Creating a Gtk.Expression does not return a GObject

When creating a GtkExpression, get the following error:

/app/share/flashcards/flashcards/DeckManager.py:82: Warning: g_object_get_qdata: assertion 'G_IS_OBJECT (object)' failed
  base_expression = Gtk.PropertyExpression.new(Gtk.ListItem, base_expression, "item")
/app/share/flashcards/flashcards/DeckManager.py:82: Warning: g_object_is_floating: assertion 'G_IS_OBJECT (object)' failed
  base_expression = Gtk.PropertyExpression.new(Gtk.ListItem, base_expression, "item")

Then, using this GtkExpression object to do anything returns TypeError: expected GObject but got <gi.repository.Gtk.PropertyExpression object at 0x7f65a021d4f0>

For Example

# creating a more complex expression
front_expression = Gtk.PropertyExpression.new(CardModelItem, base_expression, "front")
# or creating a filter using that (incomplete) expression
filter = Gtk.StringFilter.new(base_expression)

Both have the same error, TypeError: expected GObject but got <gi.repository.Gtk.PropertyExpression object at 0x7f65a021d4f0>