rom deorganizer - de-organizes everdrive sets and puts all unique roms in one folder

deorganizer.py

import os
import sys
import hashlib
import shutil
import time

hashes = []
dupes = []

inputdir = "input/"
outputdir = "output/"

logfile = "deorganizer-" + time.strftime("%Y%m%d%H%M%S") + ".log"

def logPrint(string):
	print string
	with open(logfile, "a") as myfile:
		myfile.write(string + "\n")

def hash_file(filename):
   """"This function returns the SHA-1 hash
   of the file passed into it"""

   # make a hash object
   h = hashlib.sha1()

   # open file for reading in binary mode
   with open(filename,'rb') as file:

       # loop till the end of the file
       chunk = 0
       while chunk != b'':
           # read only 1024 bytes at a time
           chunk = file.read(1024)
           h.update(chunk)

   # return the hex representation of digest
   return h.hexdigest()


if not os.path.exists(inputdir):
	logPrint("error: input dir " + inputdir + " does not exist")
	sys.exit(1)

if not os.path.exists(outputdir):
	logPrint("making output dir: " + outputdir)
	os.makedirs('output/')

for path, subdirs, files in os.walk(inputdir):
	for name in files:
		src = os.path.join(path, name)
		h = hash_file(src)
		if h not in hashes:
			logPrint("new: " + src + " (" + h + ")")
			hashes.append(h)
			dest = os.path.join(outputdir, name)
			shutil.copy(src, dest)
		else:
			logPrint("dupe: " + src + " (" + h + ")")
			#dupes.append(h)