def run(self):
        for line in iter(self._fd.readline, ''):
            self._handler(line.replace('\n', ''))
If there is no result yet, original_failure() returns None.
dataset/ETHPy150Open UniversalDevicesInc/Polyglot/polyglot/utils.py/AsyncFileReader.run--crossover with--dataset/ETHPy150Open itamarst/crochet/crochet/tests/test_api.py/EventualResultTests.test_original_failure_no_result