Nested scope suggestion

[John Thingstad]

I am somwhat upset that is seems impossible to to set variales in higher levels of the scope.
For example

def fun():
    lst = []
    y = lambda x: lst.append(x)
    fun2(y)

works, but

def fun():
    val = 0
    y = lambda x: val = x
    fun2(y)

does not. Here we create a new local val.
What I would like to write is:

def fun():
    val = 0
    y = lambda x: fun.val = x
    fun2(y)

which seems to be in the same spirit as

class a:
    def __init__(self, x)
          pass

class b(a):
    def __init__(self, x):
         a.__init__(self, x)

Given that a function has a attribute __name__ it should be a simple matter to use introscpection to 
resolve the assignement.

Any chance of this functionality being added to nested scopes?