commit 5951f2300f43d75d344d542e171daed47a0382a6
author Serhiy Storchaka <storchaka@gmail.com> Thu Dec 24 10:35:35 2015 +0200
committer Serhiy Storchaka <storchaka@gmail.com> Thu Dec 24 10:35:35 2015 +0200
tree 2e173dda0c0d4c4bf887e8a6a309430d0d9cd5be
parent 6ed42ea08b3a961944e94f1dd941ffabc7657065

Issue #20440: Massive replacing unsafe attribute setting code with special
macro Py_SETREF.

Modules/_csv.c

diff --git a/Modules/_csv.c b/Modules/_csv.c
index 884e051..9271413 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -276,9 +276,8 @@
             return -1;
         }
         else {
-            Py_XDECREF(*target);
             Py_INCREF(src);
-            *target = src;
+            Py_SETREF(*target, src);
         }
     }
     return 0;
@@ -770,8 +769,7 @@
 static int
 parse_reset(ReaderObj *self)
 {
-    Py_XDECREF(self->fields);
-    self->fields = PyList_New(0);
+    Py_SETREF(self->fields, PyList_New(0));
     if (self->fields == NULL)
         return -1;
     self->field_len = 0;