[Checkins] SVN: z3c.form/trunk/src/z3c/form/interfaces.py Make no changes a string.

[Stephan Richter]

Log message for revision 91720:
  Make no changes a string.
  

Changed:
  U   z3c.form/trunk/src/z3c/form/interfaces.py

-=-
Modified: z3c.form/trunk/src/z3c/form/interfaces.py
===================================================================
--- z3c.form/trunk/src/z3c/form/interfaces.py	2008-10-04 00:42:32 UTC (rev 91719)
+++ z3c.form/trunk/src/z3c/form/interfaces.py	2008-10-04 01:11:08 UTC (rev 91720)
@@ -29,7 +29,7 @@
 DISPLAY_MODE = 'display'
 HIDDEN_MODE = 'hidden'
 
-class NOT_CHANGED(object):
+class NOT_CHANGED(str):
     def __repr__(self):
         return '<NOT_CHANGED>'
 NOT_CHANGED = NOT_CHANGED()