#!/usr/bin/env python
# -*- coding: utf-8 -*-
import re
s = u'The quic k brown fox jumps over the lazy dog.'
s = s.replace(u'\xa0', u' ')
pattern = re.compile(ur'\sk\s')
s = pattern.sub(u'k ', s)
print s
IyEvdXNyL2Jpbi9lbnYgcHl0aG9uCiMgLSotIGNvZGluZzogdXRmLTggLSotCmltcG9ydCByZQoKcyA9IHUnVGhlIHF1aWPCoGvCoGJyb3duIGZveCBqdW1wcyBvdmVyIHRoZSBsYXp5IGRvZy4nCnMgPSBzLnJlcGxhY2UodSdceGEwJywgdScgJykKcGF0dGVybiA9IHJlLmNvbXBpbGUodXInXHNrXHMnKQpzID0gcGF0dGVybi5zdWIodSdrICcsIHMpCnByaW50IHM=