From 31392e741da2ceb5256ae626766d29454a0b5658 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@haypocalc.com>
Date: Wed, 5 Oct 2011 20:14:23 +0200
Subject: [PATCH] Fix my_basename(): make the string ready

---
 Objects/exceptions.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index 703e72e65b00..60b340b9a321 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -963,8 +963,13 @@ static PyObject*
 my_basename(PyObject *name)
 {
     Py_ssize_t i, size, offset;
-    int kind = PyUnicode_KIND(name);
-    void *data = PyUnicode_DATA(name);
+    int kind;
+    void *data;
+
+    if (PyUnicode_READY(name))
+        return NULL;
+    kind = PyUnicode_KIND(name);
+    data = PyUnicode_DATA(name);
     size = PyUnicode_GET_LENGTH(name);
     offset = 0;
     for(i=0; i < size; i++) {
-- 
2.47.3