syntax error on nonlocal statement in Python

Question

I would like to test the example of the use of the nonlocal statement specified in the answer on this question:

def outer():
   x = 1
   def inner():
                


        

Answer 1

Names listed in a nonlocal statement must not collide with pre-existing bindings in the local scope.

https://docs.python.org/3/reference/simple_stmts.html#the-nonlocal-statement

def outer():
    x = 1
    def inner():
        nonlocal x
        y = 2
        x = y
        print("inner: ", x)
    inner()
    print("outer: ", x)

>>> outer()
inner:  2
outer:  2