from pygame import *
import random

class Sprite:
     def  init  (self,xpos,ypos,filename):
	self.x = xpos
	self.y = ypos
	self.bitmap = image.load(filename)
	self.bitmap.set_colorkey((0,0,0))
     def set_position(self,xpos,ypos):
	self.x = xpos
	self.y = ypos
     def render (self):
	screen.blit(self.bitmap, (self.x, self.y))

def Intersect(s1_x,s1_y,s2_x,s2_y):
  if (s1_x > s2_x - 32) and (s1_x < s2_x + 32) and (s1_y > s2_y -32) and (s1_y < s2_y + 32):
    return 1
  else:
    return 0

init()
screen = display.set_mode((640,480))
key.set_repeat(1,1)
display.set_caption('PyInvaders Realy Cool!')
backdrop = image.load('data/backdrop.bmp')
enemies = []
x=0
for count in range(10):
  warrior = Sprite((50*x + 50),50,'data/baddie.bmp')
  enemies.append(warrior)                                           <---------------------------------------------------Error is Here!
  x += 1
hero = Sprite (20, 400,'data/hero.bmp')
ourmissile = Sprite (0, 480,'data/heromissile.bmp')
enemymissile = Sprite (0, 480,'data/baddiemessile.bmp')

<дальнейший код опущен>

#...
def __init__(self, xpos, ypos, filename):
#...