function parameters again

[Fredrik Lundh]

Hwanjo Yu wrote:
> The book says the parameters are passed by reference

in Python, everything is a reference.

> but the following example seems not. How can I pass it
> by reference in the following example ?

it is passed by reference.  but that doesn't help you here --
integer objects cannot be modified, and assignment doesn't
do what you think it does.

maybe this will help you understand:

    http://effbot.org/guides/python-objects.htm

Cheers /F