python - Pygame, border of image get cut while rotating -


i rotating image in pygame.

my image png , have lot of free space around it. enter image description here however, when rotate, can see invisible frame around it. how fix ? enter image description here rotating code

def rot_center(image, angle):     """rotate image while keeping center , size"""     orig_rect = image.get_rect()     rot_image = pygame.transform.rotate(image, angle)     rot_rect = orig_rect.copy()     rot_rect.center = rot_image.get_rect().center     rot_image = rot_image.subsurface(rot_rect).copy()     return rot_image   perso.image = pygame.image.load("sprites/[shadow]main_char_sprite.png")#.convert_alpha() perso.image = pygame.transform.scale(perso.image, (80,80)) perso.original=perso.image #besoin d'un originial pour faire la rotation perso.rect = perso.image.get_rect() perso.rect.x = 200 perso.rect.y = 200 perso.add(perso_group)   counter = 0 #counter define angle pygame.key.set_repeat(1,1)  while 1:     screen.fill(white)     event in pygame.event.get(): # user did         if event.type == keydown , event.key == k_space:             counter += 2             perso.image=rot_center(perso.original, counter) #counter define angle             print "rotating now"      all_group.add(statique_group, zombie_group, perso_group)     all_group.draw(screen)      pygame.display.flip()

any idea ?

fixed !

perso.image=pygame.transform.rotate(perso.original, angle-90) perso.rect=perso.image.get_rect(center=perso.rect.center)

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