import update

entities.py

@@ -7,7 +7,8 @@
 """
 __docformat__ = "restructuredtext en"
 
-from cubicweb.utils import todate
+from logilab.common.date import todate
+
 from cubicweb.entities import AnyEntity, fetch_config
 from cubicweb.interfaces import (ICalendarViews, ICalendarable,
                                  ISiocItem, ISiocContainer, IPrevNext)