I have problem with pygame and python 3 in ubuntu 12.10. When i tried load an image i got this error:

pygame.error: File is not a Windows BMP file

But in python 2.7 all works fine. I use code from http://inventwithpython.com/chapter19.html

Sorry for my poor English.

import pygame, sys, time, random
from pygame.locals import *
# set up pygame
pygame.init()
mainClock = pygame.time.Clock()
# set up the window
WINDOWWIDTH = 400
WINDOWHEIGHT = 400
windowSurface = pygame.display.set_mode((WINDOWWIDTH, WINDOWHEIGHT), 0, 32)
pygame.display.set_caption('Sprites and Sound')
# set up the colors
BLACK = (0, 0, 0)
# set up the block data structure
player = pygame.Rect(300, 100, 40, 40)
playerImage = pygame.image.load('player.png')
playerStretchedImage = pygame.transform.scale(playerImage, (40, 40))
foodImage = pygame.image.load('cherry.png')
foods = []
for i in range(20):foods.append(pygame.Rect(random.randint(0, WINDOWWIDTH - 20), random.randint(0, WINDOWHEIGHT - 20), 20, 20))
foodCounter = 0
NEWFOOD = 40
# set up keyboard variables
moveLeft = False
moveRight = False
moveUp = False
moveDown = False
MOVESPEED = 6
# set up music
pickUpSound = pygame.mixer.Sound('pickup.wav')
pygame.mixer.music.load('background.mid')
pygame.mixer.music.play(-1, 0.0)
musicPlaying = True
# run the game loop
while True:# check for the QUIT eventfor event in pygame.event.get():if event.type == QUIT:pygame.quit()sys.exit()if event.type == KEYDOWN:# change the keyboard variablesif event.key == K_LEFT or event.key == ord('a'):moveRight = FalsemoveLeft = Trueif event.key == K_RIGHT or event.key == ord('d'):moveLeft = FalsemoveRight = Trueif event.key == K_UP or event.key == ord('w'):moveDown = FalsemoveUp = Trueif event.key == K_DOWN or event.key == ord('s'):moveUp = FalsemoveDown = Trueif event.type == KEYUP:if event.key == K_ESCAPE:pygame.quit()sys.exit()if event.key == K_LEFT or event.key == ord('a'):moveLeft = Falseif event.key == K_RIGHT or event.key == ord('d'):moveRight = Falseif event.key == K_UP or event.key == ord('w'):moveUp = Falseif event.key == K_DOWN or event.key == ord('s'):moveDown = Falseif event.key == ord('x'):player.top = random.randint(0, WINDOWHEIGHT - player.height)player.left = random.randint(0, WINDOWWIDTH - player.width)if event.key == ord('m'):if musicPlaying:pygame.mixer.music.stop()else:pygame.mixer.music.play(-1, 0.0)musicPlaying = not musicPlayingif event.type == MOUSEBUTTONUP:foods.append(pygame.Rect(event.pos[0] - 10, event.pos[1] - 10, 20, 20))foodCounter += 1if foodCounter >= NEWFOOD:# add new foodfoodCounter = 0foods.append(pygame.Rect(random.randint(0, WINDOWWIDTH - 20), random.randint(0, WINDOWHEIGHT - 20), 20, 20))# draw the black background onto the surfacewindowSurface.fill(BLACK)# move the playerif moveDown and player.bottom < WINDOWHEIGHT:player.top += MOVESPEEDif moveUp and player.top > 0:player.top -= MOVESPEEDif moveLeft and player.left > 0:player.left -= MOVESPEEDif moveRight and player.right < WINDOWWIDTH:player.right += MOVESPEED# draw the block onto the surfacewindowSurface.blit(playerStretchedImage, player)# check if the block has intersected with any food squares.for food in foods[:]:if player.colliderect(food):foods.remove(food)player = pygame.Rect(player.left, player.top, player.width + 2, player.height + 2)playerStretchedImage = pygame.transform.scale(playerImage, (player.width, player.height))if musicPlaying:pickUpSound.play()# draw the foodfor food in foods:windowSurface.blit(foodImage, food)# draw the window onto the screenpygame.display.update()mainClock.tick(40)

The Ubuntu released repo specifically shows Python 2.7 as a dependency of PyGame 1.6.1 which is the current version in the Ubuntu Released repo. It may just be the only version of Python supported by the package.

To see this info yourself try apt-cache depends python-pygame.