reference or pointer to some object?

[Paul Rubin]

Torsten Mohr <tmohr at s.netic.de> writes:
> i'd like to pass a reference or a pointer to an object
> to a function.  The function should then change the
> object and the changes should be visible in the calling
> function.

Normally you would pass a class instance or boxed object, and let the
function change the instance or object:

    def bump(b):
       b[0] += 123  # change

    x = [5]
    bump(x)
    print x   # prints [128]