--- a/src/reportlab/lib/set_ops.py	Tue Nov 19 12:21:04 2013 +0000
+++ b/src/reportlab/lib/set_ops.py	Tue Nov 19 13:50:34 2013 +0000
@@ -6,7 +6,6 @@
 __doc__="""From before Python had a Set class..."""
 
 import types
-import string
 
 def __set_coerce(t, S):
     if t is list:
@@ -14,7 +13,7 @@
     elif t is tuple:
         return tuple(S)
     elif t is bytes:
-        return string.join(S, '')
+        return ''.join(S)
     return S
 
 def unique(seq):