def __len__(self):
        size = self.size
        if size > _sys_maxint:
            raise IndexError(
                "range contains more than %d (sys.maxint) IP addresses!"
                "Use the .size property instead." % _sys_maxint)
        return size
Perform full task configuration validation.
dataset/ETHPy150Open drkjam/netaddr/netaddr/ip/sets.py/IPSet.__len__--crossover with--dataset/ETHPy150Open openstack/rally/rally/task/engine.py/TaskEngine.validate