def __str__(self):
        if self.vlan:
            return (self.router, self.interface, self.vlan) % '<NCSVPNTarget %s/%s#%i>'
        else:
            return '<NCSVPNTarget %s/%s>' % (self.router, self.interface)
dataset/ETHPy150Open NORDUnet/opennsa/opennsa/backends/ncsvpn.py/NCSVPNTarget.__str__/swapped operands of `%`