Rect error in Python 3.6.2, Pygame 1.9.3

Question

I have recently been learning python and I just found out about sprites. They seem really useful and I have been trying to make a game where you have to eat all the red apples (healthy), and not the blue apples (mouldy). An error occurred when I tried to run it and it said:

   line 32, in <module>
   apples.rect.y = random.randrange(displayHeight - 20)
   AttributeError: type object 'apples' has no attribute 'rect'

Sorry if I have made a really nooby error but I have been looking for an answer elsewhere and I couldn't find one. Here is my entire main code:

import pygame
import random

pygame.init()

displayWidth = 800
displayHeight = 600

black = (0, 0, 0)
white = (255, 255, 255)
red = (255, 0, 0)
green = (0, 255, 0)
blue = (0, 0, 255)

gameDisplay = pygame.display.set_mode((displayWidth, displayHeight))
gameCaption = pygame.display.set_caption("Eat The Apples")
gameClock = pygame.time.Clock()

class apples(pygame.sprite.Sprite):
    def __init__(self, colour, width, height):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface([20, 10])
        self.image.fill(red)
        self.rect = self.image.get_rect()

applesList = pygame.sprite.Group()
allSpriteList = pygame.sprite.Group()

for i in range(50):
    apple = apples(red, 20 , 20)

    apples.rect.y = random.randrange(displayHeight - 20)
    apples.rect.x = random.randrange(displayWidth - 20)

    applesList.add(apple)
    allSpriteList.add(apple)

player = apples(green, 20, 20)

def gameLoop():

    gameExit = False

    while not gameExit:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                gameExit = True

        pygame.display.update()
        gameClock.tick(60)

gameLoop()
pygame.quit()
quit()

Thank you for reading and I look forward to a response! (P.S. This code isn't completely finished if you were wondering)

Answer 1

You're trying to change the rect attribute of the class here not the rect of the instance, and since the class doesn't have a rect, the AttributeError is raised.

apples.rect.y = random.randrange(displayHeight - 20)
apples.rect.x = random.randrange(displayWidth - 20)

Just change apples to apple (the instance) and it should work correctly.

apple.rect.y = random.randrange(displayHeight - 20)
apple.rect.x = random.randrange(displayWidth - 20)