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 deserialize(self, value):
        value = decode(value)
        if "\n" in value:
            values = re.split(r"\s*\n\s*", value)
        else:
            values = re.split(r"\s*,\s*", value)
        values = tuple(v.strip() for v in values if v.strip())
        validators.validate_required(values, self._required)
        return tuple(values)