Reads stdin hex and outputs ascii. Youtube posted on google+, so I wrote this quickly. https://plus.google.com/u/0/+youtube/posts/TWvnTtEgz8L

hex_to_ascii.py

#!/usr/bin/env python

import sys

def main():
    for line in sys.stdin:
        print("%s\n" % bytes.fromhex(line.replace(' ', '').strip()).decode('utf-8'))

if '__main__' == __name__:
    main()