def test_invalid_scalar_index(adata, index):
    # https://github.com/theislab/anndata/issues/619
    with pytest.raises(IndexError, match=r".*index.* out of range\."):
        _ = adata[index]
def _setup_item_button(self, item_button, icon, position=None):
    item_button.set_relief(gtk.RELIEF_NONE)