Renames files in a folder after their creation time + md5 hash

rename.py

#!/usr/bin/env python

import os
import time
import hashlib

def hashforfile(f):
	md5 = hashlib.md5();
	while True:
	  data = f.read(1024 * 1024)
	  if not data:
	      break
	  md5.update(data)
	return md5.hexdigest()

if __name__ == '__main__':
	folderPath = "/Volumes/bookI/jan/media/photos/";
	
	for folder in os.walk(folderPath):
		for filename in folder[2]:
			path = folder[0] + "/" + filename
			t = time.gmtime(os.path.getctime(path))
			ts = "" + str(t[0]) + str(t[1]) + str(t[2]) + str(t[3]) + str(t[4]) + str(t[5])
			extension = os.path.splitext(path)[1]

			f = open(path, 'rb')
			h = hashforfile(f);
			f.close()

			newPath = folder[0] + "/" + ts + "__" + h + extension.lower();
			print path + "\t|\t" + newPath

			os.rename(path, newPath)