Why is 'colliderect' not detecting collisi

Question

I am trying to make collision detection between the walls of a room and my character, Michael Scarn. However, nothing is being detected. I know this because I told the program to print "Collide" when there is a collision, but nothing is being detected. Is it a small mistake or a bigger mistake in my code? Can anyone fix this?

class Scarn(object):  # creates attributes for Michael Scarn (player)

def __init__(self, x, y, width, height):
    self.x = x
    self.y = y
    self.width = width
    self.height = height
    self.vel = 8
    self.walkCount = 0
    self.standing = False
    self.left = False
    self.right = False
    self.up = False
    self.down = False
    self.sleeping = True
    self.scarn_hitbox = pygame.Rect(self.x, self.y + 11, 32, 64)

def draw(self, win):  # draws Michael Scarn and his movements

    if self.walkCount + 1 >= 3:
        self.walkCount = 0

    if self.sleeping:
        win.blit(scarn_sleeping, (340, 150))
    if not self.sleeping:
        if self.left:
            win.blit(scarn_left[self.walkCount // 1], (self.x, self.y))
            self.walkCount += 1
        elif self.right:
            win.blit(scarn_right[self.walkCount // 1], (self.x, self.y))
            self.walkCount += 1
        elif self.up:
            win.blit(scarn_up[self.walkCount // 1], (self.x, self.y))
            self.walkCount += 1
        elif self.down:
            win.blit(scarn_down[self.walkCount // 1], (self.x, self.y))
            self.walkCount += 1
    else:
        if self.left:
            win.blit(scarn_left[0], (self.x, self.y))
        elif self.right:
            win.blit(scarn_right[0], (self.x, self.y))
        elif self.up:
            win.blit(scarn_up[0], (self.x, self.y))
        elif self.down:
            win.blit(scarn_down[0], (self.x, self.y))
        elif self.standing:
            win.blit(scarn_forward_standing[0], (self.x, self.y))

pygame.display.update()

def apartment_movement(): # movement in the apartment / collision detection

keys = pygame.key.get_pressed()

collision = False
for wall in apartment_walls:
    collision = scarn.scarn_hitbox.colliderect(wall)
    if collision:
        break

if collision:
    scarn.left = False
    scarn.right = False
    scarn.up = False
    scarn.down = False
    scarn.standing = False
    scarn.sleeping = False
    print("Collide")
if not collision:
    if keys[pygame.K_LEFT] and scarn.x > 110 - scarn.width - scarn.vel:  # allows the player to move left
        scarn.x -= scarn.vel
        scarn.left = True
        scarn.right = False
        scarn.up = False
        scarn.down = False
        scarn.standing = False
        scarn.sleeping = False
    elif keys[pygame.K_RIGHT] and scarn.x < 795 - scarn.width - scarn.vel:  # allows the player to move right
        scarn.x += scarn.vel
        scarn.right = True
        scarn.left = False
        scarn.up = False
        scarn.down = False
        scarn.standing = False
        scarn.sleeping = False
    elif keys[pygame.K_UP] and scarn.y > 130 - scarn.height - scarn.vel:
        scarn.y -= scarn.vel
        scarn.up = True
        scarn.right = False
        scarn.left = False
        scarn.down = False
        scarn.standing = False
        scarn.sleeping = False
    elif keys[pygame.K_DOWN] and scarn.y < 540 - scarn.height - scarn.vel:
        scarn.y += scarn.vel
        scarn.down = True
        scarn.right = False
        scarn.left = False
        scarn.up = False
        scarn.standing = False
        scarn.sleeping = False
    else:  # clarifies the player is not moving left or right
        scarn.walkCount = 0


# apartment walls
apartment_walls = [pygame.Rect(243, 60, 8, 275),
pygame.Rect(510, 60, 8, 275),
pygame.Rect(243, 421, 215, 5),
pygame.Rect(243, 330, 220, 5),
pygame.Rect(510, 421, 145, 5),
pygame.Rect(510, 330, 145, 5),
pygame.Rect(700, 421, 57, 5),
pygame.Rect(700, 330, 57, 5),
pygame.Rect(43, 410, 120, 10),
pygame.Rect(510, 335, 5, 90),
pygame.Rect(460, 335, 5, 90),
pygame.Rect(700, 335, 5, 90),
pygame.Rect(650, 335, 5, 90)]

Answer 1

You have to call colliderect on each wall individually. Remember to stop checking and break out of the loop once there's a collision.

collision = False

for wall in apartment_walls:
    collision = scarn.scarn_hitbox.colliderect(wall)
    if collision == True: break

if collision:
    scarn.left = False
    scarn.right = False
    scarn.up = False
    scarn.down = False
    scarn.standing = False
    scarn.sleeping = False

if not collision:
    # etc