import timeimport pygameimport pygame.fontfrom pygame.locals import *pygame.init()window = pygame.display.set_mode((500, 200), SRCALPHA, 32)font = pygame.font.SysFont("Vera.ttf", 40)testsurf = font.render("testing alpha blending", True, (250, 0, 0, 25))# has no effect# testsurf = testsurf.convert_alpha()# with an alpha of 0 why do we see this??window.fill((0,250,0,0))print "window's alpha (not per pixel) is ", window.get_alpha()window.blit(testsurf, (20, 20))# sometimes have to do this twice? double buffering?pygame.display.flip()pygame.display.flip()time.sleep(5)