From 65fb67f2dbdb36763832b7b332bdbff0fd2bd9db Mon Sep 17 00:00:00 2001
From: Mikhail Korobov <kmike84@gmail.com>
Date: Wed, 3 Feb 2016 01:01:16 +0500
Subject: [PATCH] PY3 fixed CrawlerRunner.stop

---
 scrapy/crawler.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scrapy/crawler.py b/scrapy/crawler.py
index bdcfa9d0c..ef99c243a 100644
--- a/scrapy/crawler.py
+++ b/scrapy/crawler.py
@@ -189,7 +189,7 @@ class CrawlerRunner(object):
 
         Returns a deferred that is fired when they all have ended.
         """
-        return defer.DeferredList([c.stop() for c in self.crawlers])
+        return defer.DeferredList([c.stop() for c in list(self.crawlers)])
 
     @defer.inlineCallbacks
     def join(self):