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