diff --git a/Lib/pstats.py b/Lib/pstats.py
index 0effa1c..8b60810 100644
--- a/Lib/pstats.py
+++ b/Lib/pstats.py
@@ -37,6 +37,7 @@
 import time
 import marshal
 import re
+from functools import cmp_to_key
 
 __all__ = ["Stats"]
 
@@ -238,7 +239,7 @@
             stats_list.append((cc, nc, tt, ct) + func +
                               (func_std_string(func), func))
 
-        stats_list.sort(key=CmpToKey(TupleComp(sort_tuple).compare))
+        stats_list.sort(key=cmp_to_key(TupleComp(sort_tuple).compare))
 
         self.fcn_list = fcn_list = []
         for tuple in stats_list:
@@ -471,16 +472,6 @@
                 return direction
         return 0
 
-def CmpToKey(mycmp):
-    """Convert a cmp= function into a key= function"""
-    class K(object):
-        def __init__(self, obj):
-            self.obj = obj
-        def __lt__(self, other):
-            return mycmp(self.obj, other.obj) == -1
-    return K
-
-
 #**************************************************************************
 # func_name is a triple (file:string, line:int, name:string)