Pygame.sprite.Group.add error

Question

ok here is the peice of code

lives_group = pygame.sprite.Group()
life_pos = [603,566,529,492]
pos = 0
for life in range(0,ship.lives):
    live = game_display.Life([10, life_pos[pos]])
    lives_group.add(live)

the .Life ting goes like this:

class Life(pygame.sprite.Sprite):
    def __init__(self, location):
        self.image = pygame.image.load('Spaceship_life.png')
        self.rect = self.image.get_rect()
        self.rect.left, self.rect.top = location

and this is the error I get:

Traceback (most recent call last):
  File "C:\Users\------\My programs\old\GUI based games\Spaceblaster\0.1\main.py", line 17, in <module>
    lives_group.add(live)
  File "C:\Python33\lib\site-packages\pygame\sprite.py", line 360, in add
    sprite.add_internal(self)
  File "C:\Python33\lib\site-packages\pygame\sprite.py", line 163, in add_internal
    self.__g[group] = 0
AttributeError: 'Life' object has no attribute '_Sprite__g'

sorry for -ing out my name but I kept it's length in case it matters

score 9 · Accepted Answer · answered Apr 04 '13 at 01:46

9

Don't forget to call parent's constructor

class Life(pygame.sprite.Sprite):
    def __init__(self, location):
        super(Life, self).__init__()
        self.image = pygame.image.load('Spaceship_life.png')
        self.rect = self.image.get_rect()
        self.rect.left, self.rect.top = location

answered Apr 04 '13 at 01:46

Igonato

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Thanks, but chuld you help me understand that line? – Menachem Hornbacher Apr 04 '13 at 01:49
It is one of the basics in object oriented programming. Take a look at [this](http://stackoverflow.com/a/576183/723891) answer. – Igonato Apr 04 '13 at 01:53

Pygame.sprite.Group.add error

1 Answers1