Python: getting a reference to a function from inside itself

Question

If I define a function:

def f(x):
    return x+3

I can later store objects as attributes of the function, like so:

f.thing=\"he         


        

Answer 1

Or use a closure:

def gen_f():
    memo = dict()
    def f(x):
        try:
            return memo[x]
        except KeyError:
            memo[x] = x + 3
    return f
f = gen_f()
f(123)

Somewhat nicer IMHO