diff --git a/IPython/Extensions/igrid.py b/IPython/Extensions/igrid.py
index d6f625d..007f3fe 100644
--- a/IPython/Extensions/igrid.py
+++ b/IPython/Extensions/igrid.py
@@ -9,6 +9,10 @@ try:
     sorted
 except NameError:
     from ipipe import sorted
+try:
+    set
+except:
+    from sets import Set as set
 
 
 __all__ = ["igrid"]
diff --git a/IPython/Extensions/ipy_completers.py b/IPython/Extensions/ipy_completers.py
index cc7f8bb..d7a4d7f 100644
--- a/IPython/Extensions/ipy_completers.py
+++ b/IPython/Extensions/ipy_completers.py
@@ -14,6 +14,11 @@ import inspect
 from time import time
 ip = IPython.ipapi.get()
 
+try:
+    set
+except:
+    from sets import Set as set
+
 TIMEOUT_STORAGE = 3 #Time in seconds after which the rootmodules will be stored
 TIMEOUT_GIVEUP = 20 #Time in seconds after which we give up
 
diff --git a/IPython/Extensions/ipy_traits_completer.py b/IPython/Extensions/ipy_traits_completer.py
index 5220ea9..6d3e6f7 100644
--- a/IPython/Extensions/ipy_traits_completer.py
+++ b/IPython/Extensions/ipy_traits_completer.py
@@ -54,6 +54,10 @@ from enthought.traits import api as T
 # IPython imports
 from IPython.ipapi import TryNext, get as ipget
 from IPython.genutils import dir2
+try:
+    set
+except:
+    from sets import Set as set
 
 #############################################################################
 # Module constants
diff --git a/IPython/genutils.py b/IPython/genutils.py
index a0caf60..ec00c8a 100644
--- a/IPython/genutils.py
+++ b/IPython/genutils.py
@@ -5,7 +5,7 @@ General purpose utilities.
 This is a grab-bag of stuff I find useful in most programs I write. Some of
 these things are also convenient when working at the command line.
 
-$Id: genutils.py 2888 2007-12-12 17:20:42Z vivainio $"""
+$Id: genutils.py 2937 2008-01-16 15:25:59Z vivainio $"""
 
 #*****************************************************************************
 #       Copyright (C) 2001-2006 Fernando Perez. <fperez@colorado.edu>
@@ -42,6 +42,12 @@ from path import path
 if os.name == "nt":
     from IPython.winconsole import get_console_size
 
+try:
+    set
+except:
+    from sets import Set as set
+
+
 #****************************************************************************
 # Exceptions
 class Error(Exception):