TechGame programming challenge

diabolo.py

import sys

def PrintDiaboloLine(centerLen, totalLen):
    endLen = (totalLen - centerLen) / 2 
    print endLen * '.' + (centerLen * '@') + endLen * '.'

def PrintDiabolo(width, height, iteration):
    if (iteration * 2) + 1 >= height:
        PrintDiaboloLine(2, width)
        return
    
    PrintDiaboloLine(width - iteration * 2, width)
    PrintDiabolo(width, height, iteration + 1)
    PrintDiaboloLine(width - iteration * 2, width)


width = int(raw_input('Width: '))
if width < 10 or width % 2 != 0:
    sys.exit('Width must be even and at least 10.')

height = int(raw_input('Height: '))
if height < width or height % 2 == 0:
    sys.exit('Height must be odd and at greater than the width.')

PrintDiabolo(width, height, 0)