From a1b0c9fc4d68cd4e1103456d0cedf2ef3bbbfe9a Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Tue, 29 May 2012 12:30:29 +0200
Subject: [PATCH] PyArg_Parse*("U"): ensure that the Unicode string is ready

---
 Python/getargs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Python/getargs.c b/Python/getargs.c
index 17c4ee5955..9f72fa4ebf 100644
--- a/Python/getargs.c
+++ b/Python/getargs.c
@@ -1167,8 +1167,11 @@ convertsimple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
 
     case 'U': { /* PyUnicode object */
         PyObject **p = va_arg(*p_va, PyObject **);
-        if (PyUnicode_Check(arg))
+        if (PyUnicode_Check(arg)) {
+            if (PyUnicode_READY(arg) == -1)
+                RETURN_ERR_OCCURRED;
             *p = arg;
+        }
         else
             return converterr("str", arg, msgbuf, bufsize);
         break;
-- 
2.40.0