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.

Objects/fileobject.c

diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index 55e074b..9ae068c 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -574,10 +574,8 @@
         oerrors = Py_None;
         Py_INCREF(Py_None);
     }
-    Py_DECREF(file->f_encoding);
-    file->f_encoding = str;
-    Py_DECREF(file->f_errors);
-    file->f_errors = oerrors;
+    Py_SETREF(file->f_encoding, str);
+    Py_SETREF(file->f_errors, oerrors);
     return 1;
 }