From a3a3107bc45483e0d7c77e45412121fdb8d539b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adri=C3=A1n=20Chaves?= <adrian@chaves.io>
Date: Wed, 13 Nov 2019 09:46:54 +0100
Subject: [PATCH] MutableChain: return self from __iter__

---
 scrapy/utils/python.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/scrapy/utils/python.py b/scrapy/utils/python.py
index ea5193f12..64402a2bb 100644
--- a/scrapy/utils/python.py
+++ b/scrapy/utils/python.py
@@ -388,9 +388,7 @@ class MutableChain(object):
         self.data = chain(self.data, *iterables)
 
     def __iter__(self):
-        return self.data.__iter__()
+        return self
 
     def __next__(self):
         return next(self.data)
-
-    next = __next__