Look-and-say-sequence generator

looksay.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#  looksay.py
#
#----------------------------------------------------------------------------
# "THE BEER-WARE LICENSE" (Revision 42):
# <mwormleonhard@gmail.com> wrote this file. As long as you retain this notice you
# can do whatever you want with this stuff. If we meet some day, and you think
# this stuff is worth it, you can buy me a beer in return. 
# Martin Worm-leonhard
# ----------------------------------------------------------------------------





def main():
	seed = raw_input('Indtast seed (Enter = 1) > ')
	if seed == "":
		seed=1
	else:
		seed = int(seed)
	numIter = raw_input("Antal iterationer (Enter = 25) ? > ")
	if numIter == "":
		numIter=25
	else:
		numIter=int(numIter)
		
	for i in range(numIter):
		
		print(seed)
		seed=str(seed)
		j=0
		counter=0
		newstring = ""
		
		while j<len(seed):
			digit=seed[j]
			for k in range(j,len(seed)):
				if seed[k] == digit:
					counter+=1
				else:
					break
			newstring += str(counter) + digit
			j+=counter
			counter = 0 
			
		seed = newstring


if __name__ == '__main__':
	main()