remove duplicate import

diff --git a/sfa/storage/model.py b/sfa/storage/model.py
index 3be257f..1633809 100644 (file)
--- a/sfa/storage/model.py
+++ b/sfa/storage/model.py
@@ -1,7 +1,7 @@
 from types import StringTypes
 from datetime import datetime
 
-from sqlalchemy import Column, Integer, String, DateTime
+from sqlalchemy import Integer, String, DateTime
 from sqlalchemy import Table, Column, MetaData, join, ForeignKey
 from sqlalchemy.orm import relationship, backref
 from sqlalchemy.orm import column_property