def delete(self, **kwargs):
        self.award_set.all().delete()
        super(Badge, self).delete(**kwargs)
Walk two filename lists in parallel, testing if each source is newer
dataset/ETHPy150Open mozilla/django-badger/badger/models.py/Badge.delete--crossover with--dataset/ETHPy150Open babble/babble/include/jython/Lib/distutils/dep_util.py/newer_pairwise