Something

#imports libraries
import pygame, os, sys
from pygame.locals import *
 
#variables
background = os.path.join(os.path.dirname(__file__), 'starfield1.bmp')


pygame.init()
 
#the window
window = pygame.display.set_mode ((800, 600))
pygame.display.set_caption('Galaga!')
screen = pygame.display.get_surface()

#creating the surface
surface = pygame.image.load (background)

def input(events):
	for event in events:
		if event.type == QUIT:
			sys.exit(0)

while True:
	input (pygame.event.get())
	screen.blit (surface, (0,0))
	pygame.display.flip()