

def _merged_column_names_from(self, dataset_list):
    elements = []
    for (idx_dataset, dataset) in enumerate(dataset_list):
        code = self.__dataset_objects__()[idx_dataset].code
        for (index, column_name) in enumerate(dataset.column_names):
            if self._include_column(dataset, index):
                if (index > 0):
                    code.append(self._rename_columns(code, column_name))
                else:
                    elements.append(column_name)
    return list(unique_everseen(elements))

dataset/ETHPy150Open quandl/quandl-python/quandl/model/merged_dataset.py MergedDataset._merged_column_names_from/VarMisuse@81/107 `elements`->`code`