python coding progress

This is working code That Derek Wilson and I have worked on. 

It serves the purpose for this project.

#------------------------------------------------------------------------------
#           Name: pyg_image.py
#         Author: Kevin Harris (Modified by Derek Wilson and Jeremy Parker)
#  Last Modified: 9/10/08
#    Description: This Python/Pygame script demonstrates how to load and
#                 display an image file.  Altered to switch between multiple
#    images using the number keys.
#------------------------------------------------------------------------------

import pygame
from pygame.locals import *

def main():
    pygame.init() 

    screen = pygame.display.set_mode( (800,800) )

    background = pygame.Surface( screen.get_size() )

    background.fill( (0,0,0) )

    image = pygame.image.load( "pygame_powered.bmp" )
#    image = pygame.image.load( "Devil.jpg" )

    imagePosition = image.get_rect()

    imagePosition.bottom  = 250
    imagePosition.left = 120

    screen.blit( background, (0,0) )
    screen.blit( image, imagePosition )

    pygame.display.flip()

    while 1:
        pygame.event.pump()
   
        keyinput = pygame.key.get_pressed()

        if keyinput[K_ESCAPE] or pygame.event.peek(QUIT):
            break

 if keyinput[K_1]:
    
     image = pygame.image.load( "image1.jpg" )
     imagePosition.top = 0
     imagePosition.left = 0

 if keyinput[K_2]:
   
     image = pygame.image.load( "image2.jpg" )
     imagePosition.top = 0
     imagePosition.left = 0
 
 if keyinput[K_3]:
   
     image = pygame.image.load( "image3.jpg" )
     imagePosition.top = 0
     imagePosition.left = 0

 if keyinput[K_4]:
     image = pygame.image.load( "image4.jpg" )
     imagePosition.top = 0
     imagePosition.left = 0

 if keyinput[K_5]:
   
     image = pygame.image.load( "image5.jpg" )
     imagePosition.top = 0
     imagePosition.left = 0

 if keyinput[K_6]:
    
     image = pygame.image.load( "image6.jpg" )
     imagePosition.top = 0
     imagePosition.left = 0

 if keyinput[K_7]: