Recipient parameter may be a Person object

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@19158 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Tool/NotificationTool.py

@@ -182,7 +182,7 @@ class NotificationTool(BaseTool):
       email_from_address = default_email
 
     # To is a list - let us find all members
-    if isinstance(recipient, basestring):
+    if not isinstance(recipient, (list, tuple)):
       recipient = (recipient, )
 
     # If no recipient is defined, just send an email to the