From af65872da2b679e4b1876412aab6a731f82a469f Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Sun, 3 Jul 2016 14:41:36 +0300
Subject: Issue #27443: __length_hint__() of bytearray itearator no longer
 return negative integer for resized bytearray.

---
 Objects/bytearrayobject.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'Objects/bytearrayobject.c')

diff --git a/Objects/bytearrayobject.c b/Objects/bytearrayobject.c
index 277be59ad8..388e9909bd 100644
--- a/Objects/bytearrayobject.c
+++ b/Objects/bytearrayobject.c
@@ -3192,8 +3192,12 @@ static PyObject *
 bytearrayiter_length_hint(bytesiterobject *it)
 {
     Py_ssize_t len = 0;
-    if (it->it_seq)
+    if (it->it_seq) {
         len = PyByteArray_GET_SIZE(it->it_seq) - it->it_index;
+        if (len < 0) {
+            len = 0;
+        }
+    }
     return PyLong_FromSsize_t(len);
 }
 
-- 
cgit v1.2.1