def test_view_failed_delitem(attr):
    adata = gen_adata((10, 10))
    view = adata[5:7, :][:, :5]
    adata_hash = joblib.hash(adata)
    view_hash = joblib.hash(view)

    with pytest.raises(KeyError):
        getattr(view, attr).__delitem__("not a key")

    assert view.is_view
    assert adata_hash == joblib.hash(adata)
    assert view_hash == joblib.hash(view)
def display_name(self):
        """
        Find the most appropriate display name for a user: look for a "display_name", then
        a "real_name", and finally fall back to the always-present "name".
        """
        for k in self._NAME_KEYS:
            if self._raw.get(k):
                return self._raw[k]
            if "profile" in self._raw and self._raw["profile"].get(k):
                return self._raw["profile"][k]
        return self._raw["name"]