A question about reference in Python.

[Group]

Hello, I'm studying algorithom. For concentrating on the question itself, I
intend to use Python to implement the algorithoms.

Now, I want to write a Red-Black Tree, and a List structure. In C/C++, I 
can
use pointers to refer to  children  notes (or next notes). But, in 
Python, how
can I do it? Except the sequence, I know not any way.

You'd better help me understan how can I transform the following C code into
Python:

/* a List */
struct {
  int data;
  int *next;
  int *prev;
}

That's all. Thanks!
Kermit