def unregister(self, hub):
        pass
TextField.to_python() should return a string.
dataset/ETHPy150Open glue-viz/glue/glue/viewers/common/qt/data_viewer.py/DataViewer.unregister--crossover with--dataset/ETHPy150Open django/django/tests/model_fields/test_textfield.py/TextFieldTests.test_to_python