--- a/dataimport.py	Wed Mar 18 12:01:03 2015 +0100
+++ b/dataimport.py	Wed Mar 18 12:02:09 2015 +0100
@@ -74,6 +74,7 @@
 import cPickle
 import os.path as osp
 import inspect
+from base64 import b64encode
 from collections import defaultdict
 from copy import copy
 from datetime import date, datetime