From: Benjamin Peterson <benjamin@python.org>
Date: Wed, 31 Oct 2012 18:22:12 +0000 (-0400)
Subject: avoid a function call with redundant checks for dict size
X-Git-Tag: v3.3.1rc1~710^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9892f52145a72729253c0e71790feef49d7892af;p=python

avoid a function call with redundant checks for dict size
---

diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index d3c5eac370..c10bfccdce 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -1335,7 +1335,7 @@ dict_fromkeys(PyObject *cls, PyObject *args)
     if (d == NULL)
         return NULL;
 
-    if (PyDict_CheckExact(d) && PyDict_Size(d) == 0) {
+    if (PyDict_CheckExact(d) && ((PyDictObject *)d)->ma_used == 0) {
         if (PyDict_CheckExact(seq)) {
             PyDictObject *mp = (PyDictObject *)d;
             PyObject *oldvalue;