def __str__(self):
        return '\n'.join(['%s: %s' % (key, value)
            for key, value in self._headers.values()]) \
            + '\n\n' + self.content
Arguments:
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.3/django/http/__init__.py/HttpResponse.__str__--crossover with--dataset/ETHPy150Open NeuralEnsemble/python-neo/neo/io/plexonio.py/PlexonIO.__init__