From 96df8d5c511ec6742873b3e86d3c875899dc77e3 Mon Sep 17 00:00:00 2001
From: Blaise Laflamme <blaise@laflamme.org>
Date: Tue, 13 Aug 2013 23:51:17 -0400
Subject: added deprecation warning for mako tuple

---
 pyramid/mako_templating.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pyramid/mako_templating.py b/pyramid/mako_templating.py
index fa45b671c..c07ee227f 100644
--- a/pyramid/mako_templating.py
+++ b/pyramid/mako_templating.py
@@ -2,6 +2,7 @@ import os
 import posixpath
 import sys
 import threading
+import warnings
 
 from zope.interface import (
     implementer,
@@ -217,6 +218,14 @@ class MakoLookupTemplateRenderer(object):
             system['_context'] = context
         # tuple returned to be deprecated
         if isinstance(value, tuple):
+            warnings.warn(
+                'Using a tuple in the form (\'defname\', {}) to render a '
+                'Mako partial will be deprecated in the future. Use a '
+                'Mako template renderer as documented in the "Using A '
+                'Mako def name Within a Renderer Name" chapter of the '
+                'Pyramid narrative documentation instead',
+                DeprecationWarning,
+                3)
             self.defname, value = value
         try:
             system.update(value)
-- 
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