def __repr__(self):
        return 'FirstError[#%d, %r]' % (self.index, self.subFailure.value)
Loads a data file but stores input frames in a dictionary keyed by utterance
dataset/ETHPy150Open twisted/twisted/twisted/internet/defer.py/FirstError.__repr__--crossover with--dataset/ETHPy150Open amaas/stanford-ctc/ctc_fast/dataLoader.py/DataLoader.loadDataFileDict