From 5dad532478d67e84a7d698fafb539dd3890fd93e Mon Sep 17 00:00:00 2001
From: Friedrich Lindenberg <friedrich@pudo.org>
Date: Thu, 21 May 2015 17:40:57 +0200
Subject: [PATCH] Clean up imports.

---
 dataset/persistence/util.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dataset/persistence/util.py b/dataset/persistence/util.py
index 02478a9..5121618 100644
--- a/dataset/persistence/util.py
+++ b/dataset/persistence/util.py
@@ -1,4 +1,4 @@
-from datetime import datetime, timedelta
+from datetime import datetime
 from inspect import isgenerator
 
 try:
@@ -6,7 +6,7 @@ try:
 except ImportError:  # pragma: no cover
     from ordereddict import OrderedDict
 
-from sqlalchemy import Integer, UnicodeText, Float, DateTime, Boolean, types, Table, event
+from sqlalchemy import Integer, UnicodeText, Float, DateTime, Boolean
 
 
 def guess_type(sample):