I try to create closure where in parent frame exists binding with name inner which only can be accessibly using methods I provide by return. Here is my code:
def test():
inner = 'value'
def get_inner():
return inner
def set_inner(v):
inner = v
return get_inner, set_inner
get, set = test()
set('hello world')
But, when I actually call set_inner() and in the body statement inner = v evaluated binding created in the local frame, but binding in the parent frame stays unchanged.
Here is how it looks:
as you can see new binding is created in the current frame of set_inner function, but I'd like to current the parent's binding.
I hope I made clear enough what I want to do.
Thank in advance.
EDITED:
Thank you to MartijnPieters, all I have to do is to place nonlocal statement:
def test():
inner = 'value'
def get_inner():
return inner
def set_inner(v):
nonlocal inner
inner = v
return get_inner, set_inner
And now it changes binding in the parent frame
