Import hash algorithms from hashlib, if possible.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@30908 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Utils.py

@@ -33,8 +33,14 @@ import re
 import string
 import time
 import warnings
-from md5 import new as md5_new
-from sha import new as sha_new
+try:
+  # Python 2.5 or later
+  from hashlib import md5 as md5_new
+  from hashlib import sha1 as sha_new
+except ImportError:
+  # Python 2.4
+  from md5 import new as md5_new
+  from sha import new as sha_new
 
 from zope.interface import implementedBy