String method conversion.
(This one was trivial -- no actual string. references in it!)
diff --git a/Lib/test/test_pwd.py b/Lib/test/test_pwd.py
index 7425f53..2cb122b 100644
--- a/Lib/test/test_pwd.py
+++ b/Lib/test/test_pwd.py
@@ -1,6 +1,5 @@
 from test_support import verbose
 import pwd
-import string
 
 print 'pwd.getpwall()'
 entries = pwd.getpwall()
@@ -50,7 +49,7 @@
         except IndexError:
             # should never happen... if so, just forget it
             break
-    fakename = string.join(map(None, chars), '')
+    fakename = ''.join(map(None, chars))
 
 try:
     pwd.getpwnam(fakename)