r.25402 is wrong. Document classes cannot be imported here.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@25404 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Tool/NotificationTool.py

@@ -31,8 +31,6 @@ from Products.CMFCore.utils import getToolByName
 from Products.ERP5Type.Tool.BaseTool import BaseTool
 from Products.ERP5Type import Permissions
 from Products.ERP5 import _dtmldir
-from Products.ERP5.Document.Document import ConversionError
-from Products.ERP5.Document.EmailDocument import MimeTypeException
 
 from mimetypes import guess_type
 from email.MIMEMultipart import MIMEMultipart
@@ -43,6 +41,8 @@ from email.MIMEImage import MIMEImage
 from email.Header import make_header
 from email import Encoders
 
+class ConversionError(Exception): pass
+class MimeTypeException(Exception): pass
 
 def buildAttachmentDictList(document_list, document_type_list=()):
   """return a list of dictionary which will be used by buildEmailMessage"""