From: Alex Martelli <aleaxit@gmail.com>
Date: Sat, 25 Oct 2003 12:47:09 +0000 (+0000)
Subject: changed builtin_sum to use PyNumber_InPlaceAdd -- unchanged semantics but
X-Git-Tag: v2.3.3c1~110
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=af1b4c95f9114d13c04052c4081b2272b6b1a6ab;p=thirdparty%2FPython%2Fcpython.git

changed builtin_sum to use PyNumber_InPlaceAdd -- unchanged semantics but
fixes performance bug with sum(lotsoflists, []).
---

diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index e10d16ba65f4..22d728e60fa7 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1840,7 +1840,7 @@ builtin_sum(PyObject *self, PyObject *args)
 			}
 			break;
 		}
-		temp = PyNumber_Add(result, item);
+		temp = PyNumber_InPlaceAdd(result, item);
 		Py_DECREF(result);
 		Py_DECREF(item);
 		result = temp;