From a0ea58f7680677c250955e79959379f9e2fcc987 Mon Sep 17 00:00:00 2001
From: Jason Grout <jgrout6@bloomberg.net>
Date: Fri, 27 Mar 2015 15:37:38 +0000
Subject: [PATCH] Delete unused custom serializer

---
 IPython/html/widgets/widget.py | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/IPython/html/widgets/widget.py b/IPython/html/widgets/widget.py
index c4aaff74d..03148f6fa 100644
--- a/IPython/html/widgets/widget.py
+++ b/IPython/html/widgets/widget.py
@@ -111,25 +111,9 @@ def _json_to_widget(x):
 
 widget_serialization = {
     'from_json': _json_to_widget,
-    'to_json': lambda x: (_widget_to_json(x), {'serialization': ('widget_serialization', 'widgets/js/types')})
+    'to_json': lambda x: (_widget_to_json(x), {'serialization': ('models', 'widgets/js/types')})
 }
 
-def _to_binary_list(x):
-    import numpy
-    return memoryview(numpy.array(x, dtype=float)), {'serialization': ('list_of_numbers', 'widgets/js/types')}
-
-def _from_binary_list(x):
-    import numpy
-    a = numpy.frombuffer(x.tobytes(), dtype=float)
-    return list(a)
-
-list_of_numbers = {
-    'from_json': _from_binary_list,
-    'to_json': _to_binary_list
-}
-
-
-
 class Widget(LoggingConfigurable):
     #-------------------------------------------------------------------------
     # Class attributes