From: Raymond Hettinger <python@rcn.com>
Date: Mon, 18 May 2009 15:51:59 +0000 (+0000)
Subject: Issue 6037: MutableSequence.__iadd__ should return self.
X-Git-Tag: v2.7a1~1153
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=fceb5d478fcc43b764a9d1ad0a90e098828a7f64;p=python

Issue 6037: MutableSequence.__iadd__ should return self.
---

diff --git a/Lib/_abcoll.py b/Lib/_abcoll.py
index 990ff00982..692a0d7967 100644
--- a/Lib/_abcoll.py
+++ b/Lib/_abcoll.py
@@ -560,5 +560,6 @@ class MutableSequence(Sequence):
 
     def __iadd__(self, values):
         self.extend(values)
+        return self
 
 MutableSequence.register(list)