From ef9683b73f8980fb7cfa39166670d3998b092804 Mon Sep 17 00:00:00 2001
From: Eli Bendersky <eliben@gmail.com>
Date: Sat, 18 May 2013 07:52:34 -0700
Subject: [PATCH] Issue #17989: element_setattro returned incorrect error
 value.

This caused an exception to be raised later than expected.
---
 Modules/_elementtree.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/Modules/_elementtree.c b/Modules/_elementtree.c
index 86fdd2f1db9..9caef99ea6a 100644
--- a/Modules/_elementtree.c
+++ b/Modules/_elementtree.c
@@ -1808,17 +1808,16 @@ element_getattro(ElementObject* self, PyObject* nameobj)
     return res;
 }
 
-static PyObject*
+static int
 element_setattro(ElementObject* self, PyObject* nameobj, PyObject* value)
 {
     char *name = "";
     if (PyUnicode_Check(nameobj))
         name = _PyUnicode_AsString(nameobj);
 
-    if (name == NULL)
-        return NULL;
-
-    if (strcmp(name, "tag") == 0) {
+    if (name == NULL) {
+        return -1;
+    } else if (strcmp(name, "tag") == 0) {
         Py_DECREF(self->tag);
         self->tag = value;
         Py_INCREF(self->tag);
@@ -1837,11 +1836,12 @@ element_setattro(ElementObject* self, PyObject* nameobj, PyObject* value)
         self->extra->attrib = value;
         Py_INCREF(self->extra->attrib);
     } else {
-        PyErr_SetString(PyExc_AttributeError, name);
-        return NULL;
+        PyErr_SetString(PyExc_AttributeError,
+            "Can't set arbitraty attributes on Element");
+        return -1;
     }
 
-    return NULL;
+    return 0;
 }
 
 static PySequenceMethods element_as_sequence = {