From: Raymond Hettinger <python@rcn.com>
Date: Mon, 18 May 2009 15:56:38 +0000 (+0000)
Subject: Issue 6037: MutableSequence.__iadd__ should return self.
X-Git-Tag: v2.6.3rc1~266
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=3b3ddb882885042c71b9cabdadbd4d47a71b83a9;p=python

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

diff --git a/Lib/_abcoll.py b/Lib/_abcoll.py
index a355be9a79..d8cdc98c4c 100644
--- a/Lib/_abcoll.py
+++ b/Lib/_abcoll.py
@@ -557,5 +557,6 @@ class MutableSequence(Sequence):
 
     def __iadd__(self, values):
         self.extend(values)
+        return self
 
 MutableSequence.register(list)