Graphics

[vanam]

hi all
i am new to python programming a beginner. I Came to know from the
groups that "How to think like a computer scientist" is preferable for
begineers. i just looking through that i came to one section where a
sample program for generation of graphics is present.i tried to copy
the same script to the interpreter and it is showing an error i want
to know whether is there anything that has to be installed in addition
to python 2.5
below is the program
from gasp import *
begin_graphics()
Circle((200, 200), 60)
Line((100, 400), (580, 200))
Box((400, 350), 120, 100)
end_graphics()