Python script for generation of Gaussian blur weights

gaussian_filter_generator.py

import sys

def GenerateGaussianFilter(taps) :	
	weights = []
	sum = 0.0	
	w = 1.0
	
	width = (taps-1)*2	
	
	for i in range((width)/2+1) :	
		weights.append(w)
		sum = sum + w		
		w = w * (width-i) / (i+1)
	
	weights.reverse()
	
	sum =  weights[0] + (sum - weights[0])*2.0
	
	if sum > 0 :
		for i in range(len(weights)) :
			weights[i] = weights[i] / sum
			
	return weights

if len(sys.argv) > 1 :
	print GenerateGaussianFilter(int(sys.argv[1]))
else:
	print "Usage: gaussian_filter_generator.py <taps>"