From b9039ecb4c747660313722f710f8140e540390c8 2013-08-04 00:16:10
From: Paul Ivanov <pi@berkeley.edu>
Date: 2013-08-04 00:16:10
Subject: [PATCH] fix #3889

---

diff --git a/IPython/core/pylabtools.py b/IPython/core/pylabtools.py
index 806139c..81ee691 100644
--- a/IPython/core/pylabtools.py
+++ b/IPython/core/pylabtools.py
@@ -40,6 +40,8 @@ backends = {'tk': 'TkAgg',
 # most part it's just a reverse of the above dict, but we also need to add a
 # few others that map to the same GUI manually:
 backend2gui = dict(zip(backends.values(), backends.keys()))
+# Our tests expect backend2gui to just return 'qt'
+backend2gui['Qt4Agg'] = 'qt'
 # In the reverse mapping, there are a few extra valid matplotlib backends that
 # map to the same GUI support
 backend2gui['GTK'] = backend2gui['GTKCairo'] = 'gtk'