import pygame
import sys

# Initialize Pygame
pygame.init()

# Set up the window
window_width = 800
window_height = 600
window = pygame.display.set_mode((window_width, window_height))
pygame.display.set_caption("Pygame Window")

# Set up colors
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)

# Main game loop
running = True
while running:
    # Event handling
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # Fill the background with white
    window.fill(WHITE)

    # Draw
    pygame.draw.rect(window, BLACK, (100, 100, 50, 50))

    # Update the display
    pygame.display.flip()

    # Limit frame rate
    pygame.time.Clock().tick(60)

# Quit Pygame
pygame.quit()
sys.exit()