def get_last(model: Gtk.TreeStore) -> Optional[Gtk.TreeIter]:
"""Return an TreeIter pointing to the last element in the model"""
current = model.get_iter_first()
iter = None
while current is not None:
iter = current
current = model.iter_next(current)
return iter
def children_generator(store: Gtk.TreeStore, parent_iter: Gtk.TreeIter):
child_iter = store.iter_children(parent_iter)
while child_iter is not None:
next_iter = store.iter_next(child_iter) # get next iterator before yield to protect against item removal
yield child_iter
child_iter = next_iter