From 1022f0f66e92f50f08d14b1bd246ff6c7b0c59fe 2013-02-05 15:58:07
From: Thomas Kluyver <takowl@gmail.com>
Date: 2013-02-05 15:58:07
Subject: [PATCH] Make ProcessHandler.sh a property

---

diff --git a/IPython/utils/_process_posix.py b/IPython/utils/_process_posix.py
index b771578..baf7c24 100644
--- a/IPython/utils/_process_posix.py
+++ b/IPython/utils/_process_posix.py
@@ -56,6 +56,7 @@ class ProcessHandler(object):
     # Shell to call for subprocesses to execute
     _sh = None
 
+    @property
     def sh(self):
         if self._sh is None:        
             self._sh = pexpect.which('sh')