From 0e246a2eee1d6e51eb2cab9a3782642d7a29d1f8 Mon Sep 17 00:00:00 2001
From: llllllllll <joe@quantopian.com>
Date: Tue, 24 Nov 2015 16:51:57 -0500
Subject: [PATCH] MAINT: error message cleanup

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

diff --git a/zipline/utils/sentinel.py b/zipline/utils/sentinel.py
index f3524623..8015acaf 100644
--- a/zipline/utils/sentinel.py
+++ b/zipline/utils/sentinel.py
@@ -33,7 +33,7 @@ def sentinel(name, doc=None):
         __name__ = name
 
         def __new__(cls):
-            raise TypeError("Can't construct new instances of %r" % name)
+            raise TypeError('cannot create %r instances' % name)
 
         def __repr__(self):
             return 'sentinel(%r)' % name