Pygame error: display surface quit: Why?

Question

Can anyone tell me why my app quits with:

pygame error: display Surface quit.

Answer 1

I too had this problem, and similar to Maciej Miąsik's answer mine had to do with copy.deepcopy()-ing an image.

I had:

import copy,pygame,sys
from pygame.locals import *

EMPTY_IMG= pygame.image.load('C:super/fancy/file/path/transparent.png')
held_image=copy.deepcopy(EMPTY_IMG)
my_rect=held_image.get_rect()
my_rect.center = (50,50)
screen.blit(held_image,my_rect)

And I got the same error.

I simply changed the copy.deepcopy(EMPTY_IMG) to just EMPTY_IMG.

import copy,pygame,sys
from pygame.locals import *

EMPTY_IMG= pygame.image.load('C:super/fancy/file/path/transparent.png')
held_image=EMPTY_IMG
my_rect=held_image.get_rect()
my_rect.center = (50,50)
screen.blit(held_image,my_rect)

Then it all worked fine.