using MD5 to compare folder python script

I have been working with linux for almost 1 year now. Still, I like Windows better. Haha

This is a problem i recently trying to solve. When I using cp -r command to copy a folder, or burn a folder onto dvd, i wonder if the copy that i created is 100% correct. To do this, I use md5sum to calculate md5 of the individual files in this folder.

Here is the python script :

#!/usr/bin/python


# perform a shell command and get it's output
from commands import getoutput
# perform a shell command and get it's status (error code)
from commands import getstatusoutput
# get exit, and command line args
from sys import exit,argv

#oldPWD=getoutput('pwd')

p1md5=getoutput('(cd "' + argv[1] + '"; find . ) | sort | md5sum -b')
#print p1md5

p2md5=getoutput('(cd "' + argv[2] + '"; find . ) | sort | md5sum -b')
#print p2md5

#getstatusoutput('cd "' + oldPWD + '"')

if p1md5 == p2md5:
  print "Success"
  exit (0)
else:
  print "Fail"
  exit (1)