From 2bf9f896e5ec34d0b4749f40a18104c6eb16e68c Mon Sep 17 00:00:00 2001 From: fawce Date: Wed, 16 May 2012 12:08:18 -0400 Subject: [PATCH] added missing import --- zipline/finance/vwap.py | 1 + 1 file changed, 1 insertion(+) diff --git a/zipline/finance/vwap.py b/zipline/finance/vwap.py index 8e404aa4..7b435fb0 100644 --- a/zipline/finance/vwap.py +++ b/zipline/finance/vwap.py @@ -1,4 +1,5 @@ from collections import defaultdict +from datetime import timedelta from zipline.transforms.base import BaseTransform from zipline.finance.movingaverage import EventWindow