for i, line in enumerate(lines): a=float(line.split(',')[0]) b=float(line.split(',')[-1]) c.append((a,b)) return c mymap = Map() mymap.GetUserNodes() # Construct the robot robot = Robot(mymap) # c=read_file() # print('\nFrom file: ') # print(c) robot.A_Star() if robot.foundGoal: robot.backtrack_path() c=read_file() print('\nFrom file: ') print(c) else: print('The goal could not be found') exit() # Visualize the path robot.visualize()