Replace all map(None, a) with list(a).
diff --git a/Demo/tkinter/guido/rmt.py b/Demo/tkinter/guido/rmt.py
index 440650c..bfea195 100755
--- a/Demo/tkinter/guido/rmt.py
+++ b/Demo/tkinter/guido/rmt.py
@@ -134,7 +134,7 @@
     file_m_apps.add('command')
     file_m_apps.delete(0, 'last')
     names = root.winfo_interps()
-    names = map(None, names) # convert tuple to list
+    names = list(names)
     names.sort()
     for name in names:
         try:
diff --git a/Lib/string.py b/Lib/string.py
index eb680c2..daf9863 100644
--- a/Lib/string.py
+++ b/Lib/string.py
@@ -68,7 +68,7 @@
         raise ValueError, "maketrans arguments must have same length"
     global _idmapL
     if not _idmapL:
-        _idmapL = map(None, _idmap)
+        _idmapL = list(_idmap)
     L = _idmapL[:]
     fromstr = map(ord, fromstr)
     for i in range(len(fromstr)):
diff --git a/Lib/stringold.py b/Lib/stringold.py
index 7cbd7aa..ebfe383 100644
--- a/Lib/stringold.py
+++ b/Lib/stringold.py
@@ -391,7 +391,7 @@
         raise ValueError, "maketrans arguments must have same length"
     global _idmapL
     if not _idmapL:
-        _idmapL = map(None, _idmap)
+        _idmapL = list(_idmap)
     L = _idmapL[:]
     fromstr = map(ord, fromstr)
     for i in range(len(fromstr)):
diff --git a/Lib/test/test_grp.py b/Lib/test/test_grp.py
index a8dcb63..564c7f0 100755
--- a/Lib/test/test_grp.py
+++ b/Lib/test/test_grp.py
@@ -57,7 +57,7 @@
         namei = 0
         fakename = allnames[namei]
         while fakename in bynames:
-            chars = map(None, fakename)
+            chars = list(fakename)
             for i in xrange(len(chars)):
                 if chars[i] == 'z':
                     chars[i] = 'A'
@@ -74,7 +74,7 @@
                 except IndexError:
                     # should never happen... if so, just forget it
                     break
-            fakename = ''.join(map(None, chars))
+            fakename = ''.join(chars)
 
         self.assertRaises(KeyError, grp.getgrnam, fakename)
 
diff --git a/Lib/test/test_pwd.py b/Lib/test/test_pwd.py
index 74ce947..255a34c 100644
--- a/Lib/test/test_pwd.py
+++ b/Lib/test/test_pwd.py
@@ -62,7 +62,7 @@
         namei = 0
         fakename = allnames[namei]
         while fakename in bynames:
-            chars = map(None, fakename)
+            chars = list(fakename)
             for i in xrange(len(chars)):
                 if chars[i] == 'z':
                     chars[i] = 'A'
@@ -79,7 +79,7 @@
                 except IndexError:
                     # should never happen... if so, just forget it
                     break
-            fakename = ''.join(map(None, chars))
+            fakename = ''.join(chars)
 
         self.assertRaises(KeyError, pwd.getpwnam, fakename)