I have downloaded python 2.5. I would like to know if Tkinter is included with python or is it a separate download?
If you are using linux just open your terminal and type python and in the python interpreter type  from Tkinter import* if it doesn't show any error messages you are good to go. You can try this to check every package of python like Pygame just replace Tkinter by Pygame
Is Tkinter included with Python 2.5?