From 7fbac45287e13cf721f363614f699ffcfbcee2af Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Sat, 20 Aug 2016 01:34:44 +0200
Subject: [PATCH] _elementtree: deepcopy() now uses fast call

Issue #27128.
---
 Modules/_elementtree.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/Modules/_elementtree.c b/Modules/_elementtree.c
index b32f2ad283..5d124b3b42 100644
--- a/Modules/_elementtree.c
+++ b/Modules/_elementtree.c
@@ -819,9 +819,8 @@ LOCAL(PyObject *)
 deepcopy(PyObject *object, PyObject *memo)
 {
     /* do a deep copy of the given object */
-    PyObject *args;
-    PyObject *result;
     elementtreestate *st;
+    PyObject *stack[2];
 
     /* Fast paths */
     if (object == Py_None || PyUnicode_CheckExact(object)) {
@@ -857,12 +856,9 @@ deepcopy(PyObject *object, PyObject *memo)
         return NULL;
     }
 
-    args = PyTuple_Pack(2, object, memo);
-    if (!args)
-        return NULL;
-    result = PyObject_CallObject(st->deepcopy_obj, args);
-    Py_DECREF(args);
-    return result;
+    stack[0] = object;
+    stack[1] = memo;
+    return _PyObject_FastCall(st->deepcopy_obj, stack, 2, NULL);
 }
 
 
-- 
2.40.0