def unprocessed_filename_url_pairs(self, year=None):
        return [(item['generated_filename'].replace(".csv", ".pdf"), item['raw_url'])
                for item in self.mappings(year)
                if item in 'pre_processed_url']
dataset/ETHPy150Open openelections/openelections-core/openelex/us/ar/datasource.py/Datasource.unprocessed_filename_url_pairs/swapped operands of `in`