From fda8daa12085c46252de02caa6f3877acd6f7359 Mon Sep 17 00:00:00 2001
From: Richard Frank <rich@quantopian.com>
Date: Fri, 29 Jan 2016 19:58:41 -0500
Subject: [PATCH] PERF: Use iloc instead of values, which is slower on pandas
 0.17

---
 zipline/finance/trading.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zipline/finance/trading.py b/zipline/finance/trading.py
index 9f64db97..dd436fdc 100644
--- a/zipline/finance/trading.py
+++ b/zipline/finance/trading.py
@@ -374,7 +374,7 @@ class TradingEnvironment(object):
 
     def get_open_and_close(self, day):
         index = self.open_and_closes.index.get_loc(day.date())
-        todays_minutes = self.open_and_closes.values[index]
+        todays_minutes = self.open_and_closes.iloc[index]
         return todays_minutes[0], todays_minutes[1]
 
     def market_minutes_for_day(self, stamp):