Pygame character does not show up on screen

Question

I try to get my Pygame character on screen but I cannot get it to appear so I can control it for a game I am building Here is the code:

import pygame
#turn on pygame

pygame.init()

#window, window name and icon
screen = pygame.display.set_mode((1920,1080))

pygame.display.set_caption("When The Sky Turns Grey")
icon = pygame.image.load('cat.png')
pygame.display.set_icon(icon)

#Player
playerIMG = pygame.image.load('cat.png')
playerX = 960
playerY = 1080
playerXchange = 0

def player():
    screen.blit(playerIMG, (playerX, playerY))

#Game loop

running = True
while running:
   
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

        #KEYS
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_a:
                playerX_change = -5
            if event.key == pygame.K_d:
                playerX_change = 5
                


        if event.type == pygame.KEYUP:
            if event.key == pygame.K_a or event.key == pygame.K_d:
                playerXchange = 0

    playerX += playerXchange        
    #RGB
    screen.fill((0, 0, 255))
    #draw player (call player function)
    player()
    

    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    pygame.display.update()

I cannot get it to show up at all, no matter what I change. I am new to pygame and if anyone can help I will be grateful Thank you! aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer 1

There is 2 problems in this question

First your cat Y position is to much that it went under the screen, it should be like this:

playerY = 540 # Don't go over 1080 which is the screen height

Second you didn't update the display so it doesn't show anything on the screen, at the very end of the while loop put pygame.display.update after player()