python pretty formater

pyf

#!/usr/bin/env python

import re
split = re.compile(r'(%[A-Z][^%]|%[^%])').split

def format(s, values):
	return ''.join([str(values[k[1:]]) if k.startswith('%') else k for 
		k in split(s)])

if __name__ == '__main__':
	print format('%xtest%BaTEST%%', {
		'x': 1234,
		'Ba': 'zzz'})