Re: [pygame] Detect errors in fuctions

[Pete Shinners <pete@shinners.org>]

Marcos wrote:
> Is similar with python & pygame? 
> Now if a do: "pygame.image.load("./imagethatnotexist")"
anytime SDL gives an error, it is turned into a python exception. a 
great thing about SDL is that all errors come with good descriptions, 
and these are also included in the exception. some examples?

try:
    win = pygame.display.set_mode((x,y), flags, bits)
except pygame.error, reason:
    print 'Couldn't init graphics'
    print reason
    sys.exit(1)

try:
    name = 'missingimage.png'
    img = pygame.image.load()
except pygame.error, reason:
    print 'Could not load image', name
    print reason



sometimes there is sort of a 'grey area' about what type of exception is 
going to be raised. for the 'imagethatnotexist' example, should you get 
a standard python IOError, or the pygame.error exception? for the most 
part, if the error happens inside SDL code you get the pygame.error. if 
the error happens inside pygame code it often gives one of the regular 
python exceptions.