fixup! py2/py3: Make Products code compatible with both python2 and python3.

product/ERP5/Document/Alarm.py

@@ -40,6 +40,7 @@ from Products.CMFActivity.ActivityRuntimeEnvironment import getActivityRuntimeEn
 from Products.ERP5Type import Permissions, PropertySheet
 from Products.ERP5Type.XMLObject import XMLObject
 from Products.ERP5Type.UnrestrictedMethod import UnrestrictedMethod
+from Products.ERP5Type.Utils import str2bytes
 from Products.ERP5.mixin.periodicity import PeriodicityMixin
 
 class Alarm(XMLObject, PeriodicityMixin):
@@ -358,7 +359,7 @@ class Alarm(XMLObject, PeriodicityMixin):
         for x in result_list]
       rendered_alarm_result = '\n'.join(rendered_alarm_result_list)
       attachment_list.append({'name': 'alarm_result.txt',
-                              'content': rendered_alarm_result.encode(),
+                              'content': str2bytes(rendered_alarm_result),
                               'mime_type': 'text/plain'})
 
     notification_tool.sendMessage(recipient=candidate_list,