Pls find error in this

Python Help
1 
    for x in range(len(s.body)):
        if s.body[x].pos in list(map(lambda z: z.pos, s.body[x + 1:])):
            print(\'Score: \', len(s.body))
            message_box(\'You Lost!\', \'Play again...\')
            s.reset((10, 10))
            break