From cc1ba8b1f7dd19dc30e6844be5b73b56b41596ff Mon Sep 17 00:00:00 2001
From: MinRK <benjaminrk@gmail.com>
Date: Tue, 25 Feb 2014 15:00:48 -0800
Subject: [PATCH] remove incorrect is instance check in children_changed

---
 IPython/html/widgets/widget_container.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/IPython/html/widgets/widget_container.py b/IPython/html/widgets/widget_container.py
index f8661fc42..92a7f9c0f 100644
--- a/IPython/html/widgets/widget_container.py
+++ b/IPython/html/widgets/widget_container.py
@@ -45,7 +45,7 @@ class ContainerWidget(DOMWidget):
             http://www.peterbe.com/plog/uniqifiers-benchmark
         which provides the inspiration for using this implementation.  Below
         I've implemented the `f5` algorithm using Python comprehensions."""
-        if new is not None and isinstance(new, list):
+        if new is not None:
             seen = {}
             def add_item(i):
                 seen[i.model_id] = True