printunicode.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import codecs, sys
from optparse import OptionParser

usage = "\n\t$FILE [-i]"
parser = OptionParser(usage)
parser.add_option('-i','--input',action='store',dest='input',default = False, help='input file')
(options,args) = parser.parse_args()	

if options.input:
    with codecs.open(options.input,'r','utf8') as f:
        content = f.read()
    with codecs.open(options.input,'w','utf8') as f:
        f.write(content.decode('unicode_escape'))
else:
    sys.exit('No input file specified. See $FILE -h')