commit 576f132b986b5ee60e4b84d34a519a5edcd8c03e
author Serhiy Storchaka <storchaka@gmail.com> Tue Jan 05 21:27:54 2016 +0200
committer Serhiy Storchaka <storchaka@gmail.com> Tue Jan 05 21:27:54 2016 +0200
tree f048292ddc0b5c3d6a5afc50dc2cd4b28372c655
parent dcf76c9d0ab11f77eaa856ff0583c5c636ddb47d

Issue #20440: Cleaning up the code by using Py_SETREF.

Python/sysmodule.c

diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index f784f75..53dd4a1 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -436,10 +436,7 @@
         return -1;
     }
     if (result != Py_None) {
-        PyObject *temp = frame->f_trace;
-        frame->f_trace = NULL;
-        Py_XDECREF(temp);
-        frame->f_trace = result;
+        Py_SETREF(frame->f_trace, result);
     }
     else {
         Py_DECREF(result);