Minor fix to exit/quit

IPython/core/quitter.py

@@ -1,41 +1,43 b''
 # coding: utf-8
 """
 A simple class for quitting IPython.
 
 Authors
 -------
 * Fernando Perez
 * Brian Granger
 """
 
 #-----------------------------------------------------------------------------
 #  Copyright (C) 2008-2009  The IPython Development Team
 #
 #  Distributed under the terms of the BSD License.  The full license is in
 #  the file COPYING, distributed as part of this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 
 import sys
 
 class Quitter(object):
     """Simple class to handle exit, similar to Python 2.5's.
 
     It handles exiting in an ipython-safe manner, which the one in Python 2.5
     doesn't do (obviously, since it doesn't know about ipython)."""
     
     def __init__(self, shell, name):
         self.shell = shell
         self.name = name
         
     def __str__(self):
         return 'Type %s() to exit.' % self.name
 
     def __call__(self):
         self.shell.ask_exit()
-        return 'Bye.'
 
-    __repr__ = __call__
+    # Repr MUST return a string, else display like pprint hooks get confused
+    def __repr__(self):
+        self.shell.ask_exit()
+        return 'Bye.'