Python-сообщество

class loa:
  def __init__(self):
    self.l1 = ''
    self.l2 = ''
    
  def arg_get(self):
    args = '-h, -o:, -s:'	
    try:
      opts, args = getopt.getopt(sys.argv[1:], args, ["help"])	
    except getopt.error, msg:	
      print  msg
      print "For help use --help"
      sys.exit(2)
    for o, a in opts:	
      if o in ("-h", "--help"):
	print 'Helpaaaaaaaaaaaaaaaaaaaaaaaa'
      elif o in("-o"):
	self.l1=a
      elif o in("-s"):
	self.l2=a
      else:
	assert False, "unhandled option"
	
  def arg_proc(self):
    if self.l1:
      print self.l1
    if self.l2:
      print self.l2
      
class test(loa):
  def __init__(self):
    print self.l1 #На этой строке и есть ошибка.