Are you 1337 enough

This code does not compile.
Only the 1337est h4x0rz know the fix.

>>9
WTF?

class Superclass (object):
    def __init__(self):
        self.x = self.y = 0.

class Childclass (Superclass):
    pass

kid = Childclass()
kid.x, kid.y = 1., 2.

Noobs...

(Just in case you're wondering, this is what's wrong with >>9:
1. Old-style class
2. Could have used multiple assignment
3. What's that stupid setter for!? This is Python!
4. What's Childclass.update for?
5. Why the call to super?)