From ba85d69a3e3610bdd05f0dd372cf4ebca178c7fb Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Thu, 30 Mar 2017 09:09:41 +0300
Subject: bpo-29878: Add global instances of int for 0 and 1. (#852)

---
 Modules/itertoolsmodule.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

(limited to 'Modules/itertoolsmodule.c')

diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index f867252481..e91a0299c4 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -3965,24 +3965,16 @@ count_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
                 fast_mode = 0;
             }
         }
-        Py_INCREF(long_cnt);
     } else {
         cnt = 0;
-        long_cnt = PyLong_FromLong(0);
-        if (long_cnt == NULL) {
-            return NULL;
-        }
+        long_cnt = _PyLong_Zero;
     }
+    Py_INCREF(long_cnt);
 
     /* If not specified, step defaults to 1 */
-    if (long_step == NULL) {
-        long_step = PyLong_FromLong(1);
-        if (long_step == NULL) {
-            Py_DECREF(long_cnt);
-            return NULL;
-        }
-    } else
-        Py_INCREF(long_step);
+    if (long_step == NULL)
+        long_step = _PyLong_One;
+    Py_INCREF(long_step);
 
     assert(long_cnt != NULL && long_step != NULL);
 
-- 
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