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

Beginne mit der Klasse Snake und dem Traceback im Beschreibungstext des Issues und sieh dir anschließend das verlinkte Document 8.pdf an, um das ursprüngliche Codefragment zu finden. Führe das Beispiel mit Python 3.7.2 erneut aus und bestätige, dass die Initialisierung das von method_a verwendete Attribut erstellt, ohne den gemeldeten AttributeError zu erzeugen.