too many values to unpack (expected 3) pygame click issue [duplicate] - python-3.x

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This question already has answers here:
Pygame - Mouse clicks not getting detected
(2 answers)
Closed 2 years ago.
I am currently working on a CS50 project studying the AI required for tic-tac-toe. however I can't get the runner.py file to run, as I get the following error:
Traceback (most recent call last): File
"/Users/newtracksuit/Downloads/tictactoe/runner.py", line 57, in
click, _, _ = pygame.mouse.get_pressed() ValueError: too many values to unpack (expected 3)
here is the full code provided, I have yet to write any actual functionality to the tic-tac-toe program, Just need to understand why this is not working yet
import pygame
import sys
import time
import tictactoe as ttt
pygame.init()
size = width, height = 600, 400
# Colors
black = (0, 0, 0)
white = (255, 255, 255)
screen = pygame.display.set_mode(size)
mediumFont = pygame.font.Font("OpenSans-Regular.ttf", 28)
largeFont = pygame.font.Font("OpenSans-Regular.ttf", 40)
moveFont = pygame.font.Font("OpenSans-Regular.ttf", 60)
user = None
board = ttt.initial_state()
ai_turn = False
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
screen.fill(black)
# Let user choose a player.
if user is None:
# Draw title
title = largeFont.render("Play Tic-Tac-Toe", True, white)
titleRect = title.get_rect()
titleRect.center = ((width / 2), 50)
screen.blit(title, titleRect)
# Draw buttons
playXButton = pygame.Rect((width / 8), (height / 2), width / 4, 50)
playX = mediumFont.render("Play as X", True, black)
playXRect = playX.get_rect()
playXRect.center = playXButton.center
pygame.draw.rect(screen, white, playXButton)
screen.blit(playX, playXRect)
playOButton = pygame.Rect(5 * (width / 8), (height / 2), width / 4, 50)
playO = mediumFont.render("Play as O", True, black)
playORect = playO.get_rect()
playORect.center = playOButton.center
pygame.draw.rect(screen, white, playOButton)
screen.blit(playO, playORect)
# Check if button is clicked
click, _, _ = pygame.mouse.get_pressed()
if click == 1:
mouse = pygame.mouse.get_pos()
if playXButton.collidepoint(mouse):
time.sleep(0.2)
user = ttt.X
elif playOButton.collidepoint(mouse):
time.sleep(0.2)
user = ttt.O
else:
# Draw game board
tile_size = 80
tile_origin = (width / 2 - (1.5 * tile_size),
height / 2 - (1.5 * tile_size))
tiles = []
for i in range(3):
row = []
for j in range(3):
rect = pygame.Rect(
tile_origin[0] + j * tile_size,
tile_origin[1] + i * tile_size,
tile_size, tile_size
)
pygame.draw.rect(screen, white, rect, 3)
if board[i][j] != ttt.EMPTY:
move = moveFont.render(board[i][j], True, white)
moveRect = move.get_rect()
moveRect.center = rect.center
screen.blit(move, moveRect)
row.append(rect)
tiles.append(row)
game_over = ttt.terminal(board)
player = ttt.player(board)
# Show title
if game_over:
winner = ttt.winner(board)
if winner is None:
title = f"Game Over: Tie."
else:
title = f"Game Over: {winner} wins."
elif user == player:
title = f"Play as {user}"
else:
title = f"Computer thinking..."
title = largeFont.render(title, True, white)
titleRect = title.get_rect()
titleRect.center = ((width / 2), 30)
screen.blit(title, titleRect)
# Check for AI move
if user != player and not game_over:
if ai_turn:
time.sleep(0.5)
move = ttt.minimax(board)
board = ttt.result(board, move)
ai_turn = False
else:
ai_turn = True
# Check for a user move
click, _, _ = pygame.mouse.get_pressed()
if click == 1 and user == player and not game_over:
mouse = pygame.mouse.get_pos()
for i in range(3):
for j in range(3):
if (board[i][j] == ttt.EMPTY and tiles[i][j].collidepoint(mouse)):
board = ttt.result(board, (i, j))
if game_over:
againButton = pygame.Rect(width / 3, height - 65, width / 3, 50)
again = mediumFont.render("Play Again", True, black)
againRect = again.get_rect()
againRect.center = againButton.center
pygame.draw.rect(screen, white, againButton)
screen.blit(again, againRect)
click, _, _ = pygame.mouse.get_pressed()
if click == 1:
mouse = pygame.mouse.get_pos()
if againButton.collidepoint(mouse):
time.sleep(0.2)
user = None
board = ttt.initial_state()
ai_turn = False
pygame.display.flip()

Answer 1

pygame.mouse.get_pressed()
Returns a sequence of booleans representing the state of all the mouse buttons.
The number of buttons is either 4 or 6, that depends on the version of pygame. I recommend to get the state of a single button by subscription:
buttons = pygame.mouse.get_pressed()
if button[0] == 1:
# [...]

Answer 2

What is returned when you execute pygame.mouse.get_pressed()? I see (0, 0, 0) which is the three arguments your code expects.
You could work out what your code is returning and add the requisite number of underscores, but if you aren't interested in the remaining arguments, you can use * to handle the rest of the returned values, e.g.
click, *_ = pygame.mouse.get_pressed()