LinuxQuestions.org - PYTHON svn module needed with Trac

Hi,
I've got Trac installed and it seems to need an svn module for python but I can't find much information about it via googling.

The error is:

Code:

ImportError: No module named svn

I think this belongs to swig, but swig is installed and when I enter the python interactive prompt and run

Code:

import svn

I get the same error message as above at the interactive prompt.

Can comeone please tell me what I need to be able to import svn on this machine?