From 12945ebd3770c78c0eca764cbc71e86c91ac54d4 2014-12-12 16:42:11
From: Carlos Cordoba <ccordoba12@gmail.com>
Date: 2014-12-12 16:42:11
Subject: [PATCH] Add default (None) values to HBChannel constructor

This is needed for PyQt5 compatibility

---

diff --git a/IPython/kernel/channels.py b/IPython/kernel/channels.py
index b22cfba..f9b8d93 100644
--- a/IPython/kernel/channels.py
+++ b/IPython/kernel/channels.py
@@ -47,7 +47,7 @@ class HBChannel(Thread):
     _pause = None
     _beating = None
 
-    def __init__(self, context, session, address):
+    def __init__(self, context=None, session=None, address=None):
         """Create the heartbeat monitor thread.
 
         Parameters