Example 1. pygame docs
python -m pygame.examples.aliens

CHAPTER 9. Basic Introduction to PyGame

PyGame Intro/BasicFramework.py
#!/usr/bin/python

import pygame
from pygame.locals import *

windowSize = (640, 480)

pygame.init()
fpsClock = pygame.time.Clock()

windowSurfaceObj = pygame.display.set_mode(windowSize)
pygame.display.set_caption('Image Example');

background = pygame.Color(100, 149, 237) # cornflower blue

while True:

        windowSurfaceObj.fill(background)

        for event in pygame.event.get():
                if event.type == QUIT:
                        pygame.quit()
                        sys.exit()

        pygame.display.update()
        fpsClock.tick(30)