commit 3466bde1cc113750450ffed028cc6fc7c95faedd
author Victor Stinner <victor.stinner@gmail.com> Mon Sep 05 18:16:01 2016 -0700
committer Victor Stinner <victor.stinner@gmail.com> Mon Sep 05 18:16:01 2016 -0700
tree 231febf716064e61b742a058c60da523c8b30fe3
parent ad8c83ad6b91bebbc124c0c36e67b9836ca3d90f

Avoid calling functions with an empty string as format string

Directly pass NULL rather than an empty string.

Python/traceback.c

diff --git a/Python/traceback.c b/Python/traceback.c
index b33156e..e8aac1b 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -314,7 +314,7 @@
     if (fob == NULL) {
         PyErr_Clear();
 
-        res = _PyObject_CallMethodId(binary, &PyId_close, "");
+        res = _PyObject_CallMethodId(binary, &PyId_close, NULL);
         Py_DECREF(binary);
         if (res)
             Py_DECREF(res);
@@ -334,7 +334,7 @@
             break;
         }
     }
-    res = _PyObject_CallMethodId(fob, &PyId_close, "");
+    res = _PyObject_CallMethodId(fob, &PyId_close, NULL);
     if (res)
         Py_DECREF(res);
     else