Support python 2.4 and python 2.3

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@6089 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/Message.py

@@ -32,13 +32,24 @@ from Products.PythonScripts.Utility import allow_class
 from Products.PageTemplates.GlobalTranslationService import getGlobalTranslationService
 from Globals import get_request
 from cPickle import dumps, loads
-from base64 import b64encode, b64decode
 
 try:
   from string import Template
 except ImportError:
   from Products.ERP5Type.patches.string import Template
 
+# API of base64 has changed between python v2.3 and v2.4
+import base64
+try:
+  # python v2.4 API
+  b64encode = base64.b64encode
+  b64decode = base64.b64decode
+except AttributeError:
+  # python v2.3 API
+  b64encode = base64.encodestring
+  b64decode = base64.decodestring
+
+
 
 class Message(Persistent):
   """