Here is the link to the exercise https://www.codecademy.com/courses/learn-intermediate-python-3/projects/the-great-robot-race-python-project
all steps seam correct. The program runs well when using the command python3 robot_race.py. But when it is time to print the result I get this eror:
Traceback (most recent call last):
File “robot_race.py”, line 62, in
rr.print_results(bot_scores)
File “/home/ccuser/workspace/the-great-robot-race-python-project-workspace/robot_race_functions.py”, line 31, in print_results
bot_score_data.sort(key=lambda b: b.score)
TypeError: ‘<’ not supported between instances of ‘Counter’ and ‘Counter’
it seems to be a problem with the provided functions in robot_race_functions.py, but I saw no instance of ‘<’ in the function. Can someone help me out on why the whole race is printed but the results are not?
Here is the code:
import robot_race_functions as rr
from collections import deque, Counter, namedtuple
from time import time, sleep
maze_file_name = 'maze_data_1.csv'
seconds_between_turns = 0.3
max_turns = 35
# Initialize the robot race
maze_data = rr.read_maze(maze_file_name)
rr.print_maze(maze_data)
walls, goal, bots = rr.process_maze_init(maze_data)
# Populate a deque of all robot commands for the provided maze
robot_moves = deque()
num_of_turns = 0
while not rr.is_race_over(bots) and num_of_turns < max_turns:
# For every bot in the list of bots, if the bot has not reached the end, add a new move to the robot_moves deque
# Add your code below!
for bot in bots:
if bot.has_finished == False:
robot_moves.append(rr.compute_robot_logic(walls, goal, bot))
num_of_turns += 1
# Count the number of moves based on the robot names
# Add your code below!
moves_by_robot = Counter(move[0] for move in robot_moves)
# Count the number of collisions by robot name
# Add your code below!
colisions_by_robot = Counter(move[0]for move in robot_moves if move[2] ==True)
# Create a namedtuple to keep track of our robots' points
# Add your code below!
BotScoredData = namedtuple('BotScoredData', ['name', 'num_moves', 'num_collisions', 'score'])
# Calculate the scores (moves + collisions) for each robot and append it to bot_scores
bot_scores = []
# Add your code below!
for bot in bots:
bot_scores.append(BotScoredData(bot.name, moves_by_robot, colisions_by_robot, moves_by_robot + colisions_by_robot))
# Populate a dict to keep track of the robot movements
bot_data = {}
# Add your code below!
for bot in bots:
bot_data[bot.name] = bot
# Move the robots and update the map based on the moves deque
while len(robot_moves) > 0:
# Make sure to pop moves from the front of the deque
# Add your code below!
bot_name, direction, has_collided = robot_moves.popleft()
bot_data[bot_name].process_move(direction)
# Update the maze characters based on the robot positions and print it to the console
rr.update_maze_characters(maze_data, bots)
rr.print_maze(maze_data)
sleep(seconds_between_turns - time() % seconds_between_turns)
# Print out the results!
rr.print_results(bot_scores)
