help implementing a distributed asynchronous distance vector routing protocol(Python)

need help finishing Node.py

instructions provided below

please read everything

Focused on distance tables and routing tables

please comment if additional information is needed

Node.py

from common import * class Node: def _init_(self, ID, networksimulator, costs): self.myID = ID self.ns = networksimulator num = self.ns. NUM_NODES self.distanceTable = [[@ for i in range(num)] for j in range(num) ] self. routes = [0 for i in range(num) ] # you implement the rest of constructor def recvupdate(self, pkt): self.distanceTable[pkt. sourceid] = pkt.mincosts # you implement the rest of it return def printdt(self): print(" D"+str(self.myID)+" | ", end_"my for i in range(self.ns. NUM NODES) : print("{:3d} ". format(i), end=") print() print(" ----|-", end="") for i in range(self.ns. NUM_NODES) : print(" ------", end-"my print() for i in range(self.ns. NUM_NODES) : print(" {}| ". format(i), end-"" ) for j in range(self.ns. NUM_NODES) : print("{:3d} ". format(self. distanceTable[i][j]), end="> > print() print()