request for help

leonardo selmi l.selmi at
Mon Feb 18 20:42:08 CET 2013

pls i need help:

i have copied the following from a book and tried to make it work:

import math

def area(radius):
return math.pi * radius**2

def circumference(radius):
return 2 * math.pi * radius

i saved the above program from python shell into a file as "" . when i type "import circle" i get  error..

kind regards

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