def __str__(self):
        return 'FirstError[#%d, %s]' % (self.index, self.subFailure)
Add a new rule to an existing security group.
dataset/ETHPy150Open twisted/twisted/twisted/internet/defer.py/FirstError.__str__--crossover with--dataset/ETHPy150Open saltstack/salt/salt/modules/boto_secgroup.py/authorize