def disable_ipv6(self):
        sysctl_name = re.sub(r'\.', '/', self.name)
        cmd = sysctl_name % 'net.ipv6.conf.%s.disable_ipv6=1'
        return self._sysctl([cmd])
dataset/ETHPy150Open openstack/neutron/neutron/agent/linux/ip_lib.py/IPDevice.disable_ipv6/swapped operands of `%`