diff -r b747f2532e03 -r 6a02be304486 dataimport.py
--- a/dataimport.py	Thu Apr 25 17:30:09 2013 +0200
+++ b/dataimport.py	Thu Apr 25 14:10:55 2013 +0200
@@ -75,7 +75,6 @@
 import os.path as osp
 import inspect
 from collections import defaultdict
-from contextlib import contextmanager
 from copy import copy
 from datetime import date, datetime
 from time import asctime