[pygame] memory leak with pygame.display.set_mode

["Christian O'Reilly" <christian.oreilly@xxxxxxxxxx>]

When I try the following code:

import gc
gc.enable()
gc.set_debug(gc.DEBUG_LEAK)

import pygame
pygame.init()
sortie=0
screen=pygame.display.set_mode((640,480))
while sortie==0:
    for event in pygame.event.get():
        if event.type==pygame.QUIT:
            sortie=1
        if event.type==pygame.KEYDOWN:
            if event.key==pygame.K_ESCAPE:
                sortie=1

I get a lot of memory leak messages, e.g. :

[...]
gc: collectable <type 0131AD18>
gc: collectable <dict 01300270>
gc: collectable <getset_descriptor 013010A8>
gc: collectable <getset_descriptor 01301148>
gc: collectable <tuple 01301170>

Somebody has any information on this apparent memory leak problem? Am
I missing something obvious?

-----
Christian