From e64c0fa11787e5906cc9c3e67d485673afa2cbbd 2013-02-21 00:11:38
From: Brian E. Granger <ellisonbg@gmail.com>
Date: 2013-02-21 00:11:38
Subject: [PATCH] Merge pull request #2901 from lessandro/osx_inputhook_wx

Fix inputhook_wx on osx
---

diff --git a/IPython/lib/inputhookwx.py b/IPython/lib/inputhookwx.py
index eaf87bd..2bacb71 100644
--- a/IPython/lib/inputhookwx.py
+++ b/IPython/lib/inputhookwx.py
@@ -17,6 +17,7 @@ Authors:  Robin Dunn, Brian Granger, Ondrej Certik
 # Imports
 #-----------------------------------------------------------------------------
 
+import sys
 import signal
 import time
 from timeit import default_timer as clock
@@ -159,5 +160,11 @@ def inputhook_wx3():
         pass
     return 0
 
-# This is our default implementation
-inputhook_wx = inputhook_wx3
+if sys.platform == 'darwin':
+    # On OSX, evtloop.Pending() always returns True, regardless of there being
+    # any events pending. As such we can't use implementations 1 or 3 of the
+    # inputhook as those depend on a pending/dispatch loop.
+    inputhook_wx = inputhook_wx2
+else:
+    # This is our default implementation
+    inputhook_wx = inputhook_wx3