Where in the world is Tkinter?

[Aaron J. Greenwood]

In attempting to install a product I need to use rpm reports the following:

error: Failed dependencies:
tkinter >= 2.0.0 is needed by pymol ...

On the python site I find the following: 

http://www.python.org/topics/tkinter/download.html
You don't need to download Tkinter - it's an integral part of all Python 
distributions (except binary distributions for platforms that don't 
support Tcl/Tk).

I have  tk-8.3.5-93, tcl-8.3.5-93 and python-2.2.3-7 installed.  Tkinter 
was not contained within the python rpm.

Does anyone know where I can find Tkinter?