Default method arguments

[gregory.petrosyan at gmail.com]

Hello everybody!
I have little problem:

class A:
    def __init__(self, n):
        self.data = n
    def f(self, x = ????)
        print x

All I want is to make self.data the default argument for self.f(). (I
want to use 'A' class as following :

myA = A(5)
myA.f()

and get printed '5' as a result.)