New to python had a problem

hello,everyone I was having time to learn python so i started learning it from day before yesterday,now I am trying to make snake game from curses module and I ran into A TROUBLE, figured someone from here would lend me some of their experience regarding this
the document is the photograph of the code fragment
Document 8.pdf

class Snake(object):
def init(self):
self.x='Hiss!'
def method_a(self,foo):
print(self.x +' '+ foo)

snake = Snake()
snake.method_a('Says the snake')

the above code fragment is having an error
upon trying to run it the terminal gives the following

Traceback (most recent call last):
File "hc.py", line 31, in
snake.method_a('Says the snake')
File "hc.py", line 28, in method_a
print(self.x +' '+ foo)
AttributeError: 'Snake' object has no attribute 'x'

can't find where the error is so i request you guys to please help me if you know any thing regarding this

and sorry i forgot the most important part of info iam using python 3.7.2 64 bit on windows 7

Inizia con la classe Snake e il traceback nel corpo dell’issue, quindi esamina il Document 8.pdf collegato per trovare il frammento di codice originale. Riproduci l’esempio con Python 3.7.2 e conferma che l’inizializzazione crea l’attributo utilizzato da method_a senza produrre l’AttributeError segnalato.