From 3a7f7977f1ad3e5afe79254eef5057c0288613db Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Thu, 3 May 2012 03:36:40 +0200
Subject: Remove buggy assertion in PyUnicode_Substring()

Use also directly unicode_empty, instead of PyUnicode_New(0,0).
---
 Objects/unicodeobject.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 09b5733..0e7493b 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -12078,8 +12078,8 @@ PyUnicode_Substring(PyObject *self, Py_ssize_t start, Py_ssize_t end)
         return NULL;
     }
     if (start >= length || end < start) {
-        assert(end == length);
-        return PyUnicode_New(0, 0);
+        Py_INCREF(unicode_empty);
+        return unicode_empty;
     }
 
     length = end - start;
-- 
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