This is a little script that I made to crack MD5 password with dictionary.
Code:
#!/usr/bin/env python
#-*- encoding: iso-8859-1 -*-
###########################################################################
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
############################################################################
# Autor: MrMaX
############################################################################

import md5, sys, getopt
ver= "0.1"
a=0
def run():
	
	if len(sys.argv) == 1 or sys.argv[1]=="-h" or sys.argv[1]=="--help":
			print "Usage: pymd5 [md5hash] [wordlist]\r\n"
			print "-h 	--help			This Screen"
			print "-v 	--version		Version"
			
			print "Example: ./pymd5.py d79096188b670c2f81b7001f73801117 wordlist.txt"
			print "\r"
	else:	
		if sys.argv[1]=="-v" or sys.argv[1]=="--version":
			print "pymd5 version: " + ver + "\nAutor: MrMaX"
	

	if len(sys.argv) == 3:
	    md5crack(sys.argv[1],sys.argv[2],)

 
def md5crack(hash,word):
	try:
		wordlist = open(word,"r")
	except IOError:
		print "File " + word + " doesnt exists"
		sys.exit(0)

	global a 
	
	for line in wordlist.xreadlines():
		word= line.replace("\n","")
		passw = md5.new(word)

		if (hash == passw.hexdigest()):
			print '\033[1;32mBINGO: ' + passw.hexdigest() + ' = ' + word+'\033[0'
			
			a = 1
			sys.exit(0)
	
	if ( a == 0):
		print '\033[1;31mSorry no match found\033[0'
	wordlist.close()

def main():
	run()

		
if __name__ == "__main__":
    main()
Feel free to improve the code, hope that helps