From 3023ebb43f7607584c3e123aff56e867cb04a418 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Fri, 13 Jan 2017 08:34:34 +0200
Subject: Py_SIZE() was misused for dict.

---
 Modules/_json.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/_json.c b/Modules/_json.c
index 47c9b0d..8cbf2e4 100644
--- a/Modules/_json.c
+++ b/Modules/_json.c
@@ -1609,7 +1609,7 @@ encoder_listencode_dict(PyEncoderObject *s, _PyAccu *acc,
         if (open_dict == NULL || close_dict == NULL || empty_dict == NULL)
             return -1;
     }
-    if (Py_SIZE(dct) == 0)
+    if (PyDict_Size(dct) == 0)  /* Fast path */
         return _PyAccu_Accumulate(acc, empty_dict);
 
     if (s->markers != Py_None) {
-- 
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