From 605ed1cd2d330576e5a1c9c9865f8ea04faa5c6f 2014-02-25 23:00:48
From: MinRK <benjaminrk@gmail.com>
Date: 2014-02-25 23:00:48
Subject: [PATCH] remove incorrect is instance check in children_changed
---

diff --git a/IPython/html/widgets/widget_container.py b/IPython/html/widgets/widget_container.py
index f8661fc..92a7f9c 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