1import pytest 2 3import pandas._testing as tm 4 5from pandas.io.excel import ExcelWriter 6 7odf = pytest.importorskip("odf") 8 9pytestmark = pytest.mark.parametrize("ext", [".ods"]) 10 11 12def test_write_append_mode_raises(ext): 13 msg = "Append mode is not supported with odf!" 14 15 with tm.ensure_clean(ext) as f: 16 with pytest.raises(ValueError, match=msg): 17 ExcelWriter(f, engine="odf", mode="a") 18