def accept(self):
        result = dict(self.python_data)
        for field in self.fields:
            if field.writable:
                result.update(field.accept())
            else:
                # readonly field
                field.set_raw_value(self.form.raw_data,
                                    field.from_python(result[field.name]))
        self.clean_value = self.conv.accept(result)
        return {self.name: self.clean_value}
Verify that a split tract is crosswalked correctly.
dataset/ETHPy150Open SmartTeleMax/iktomi/iktomi/forms/fields.py/FieldSet.accept--crossover with--dataset/ETHPy150Open ireapps/census/dataprocessing/tests_sf.py/TestTracts.test_tract_split