- cls.flows[cls.pg_interfaces[i + 1]] = [cls.pg_interfaces[i],
- cls.pg_interfaces[i + 2]]
- cls.flows[cls.pg_interfaces[i + 2]] = [cls.pg_interfaces[i],
- cls.pg_interfaces[i + 1]]
+ cls.flows[cls.pg_interfaces[i + 1]] = \
+ [cls.pg_interfaces[i], cls.pg_interfaces[i + 2]]
+ cls.flows[cls.pg_interfaces[i + 2]] = \
+ [cls.pg_interfaces[i], cls.pg_interfaces[i + 1]]