Python - take snapshot from webcam

#Need to install pygame & download videocapture file "vidcap.pyd"
#from http://videocapture.sourceforge.net/ and save into your Python DLLs folder
#Example for Win7

import pygame
import pygame.camera
from pygame.locals import *

pygame.init()
pygame.camera.init()

cam = pygame.camera.Camera(0,(640,480),"RGB")
cam.start()
img = pygame.Surface((640,480))
cam.get_image(img)
pygame.image.save(img, "webcam.jpg")
cam.stop()