From: Alex Martelli <aleaxit@gmail.com>
Date: Sat, 25 Oct 2003 23:22:55 +0000 (+0000)
Subject: regressing the performance bugfix -- Guido wants the performance bug left
X-Git-Tag: v2.3.3c1~107
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b34ac7371cdc9f269f2f77e24dd1c22fa157d4e4;p=thirdparty%2FPython%2Fcpython.git

regressing the performance bugfix -- Guido wants the performance bug left
alone, because there can be no guarantee re the semantics of += vs + .
---

diff --git a/Misc/NEWS b/Misc/NEWS
index 0fd019650153..7b010f1eadbb 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -15,9 +15,6 @@ Core and builtins
 - Patch #820195: object.__contains__() now returns True or False instead
   of 1 or 0.
 
-- builtin_sum() now uses PyNumber_InPlaceAdd, fixing a previous
-  performance bug for sum(list_of_lists) and similar cases.
-
 Extension modules
 -----------------
 
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 22d728e60fa7..e10d16ba65f4 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1840,7 +1840,7 @@ builtin_sum(PyObject *self, PyObject *args)
 			}
 			break;
 		}
-		temp = PyNumber_InPlaceAdd(result, item);
+		temp = PyNumber_Add(result, item);
 		Py_DECREF(result);
 		Py_DECREF(item);
 		result = temp;