Relative imports do not work in Py3

src/collective/messagesviewlet/setuphandlers.py

@@ -5,8 +5,8 @@
 from plone.app.dexterity.behaviors.exclfromnav import IExcludeFromNavigation
 from Products.CMFPlone import interfaces as Plone
 from Products.CMFPlone.utils import _createObjectByType
-from utils import _
-from utils import add_message
+from collective.messagesviewlet.utils import _
+from collective.messagesviewlet.utils import add_message
 from zope.interface import implementer
 
 

src/collective/messagesviewlet/subscribers.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from message import generate_uid
+from collective.messagesviewlet.message import generate_uid
 
 
 def change_hidden_uid(message, event):

src/collective/messagesviewlet/tests/test_message.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+
 from collective.messagesviewlet.browser.messagesviewlet import MessagesViewlet
 from collective.messagesviewlet.message import add_timezone
 from collective.messagesviewlet.message import IMessage

src/collective/messagesviewlet/utils.py

@@ -3,9 +3,9 @@
 from collective.behavior.talcondition.behavior import ITALCondition
 from collective.messagesviewlet import HAS_PLONE_5
 from collective.messagesviewlet.message import add_timezone
+from collective.messagesviewlet.message import generate_uid
 from datetime import datetime
 from DateTime import DateTime
-from message import generate_uid
 from plone import api
 from plone.app.layout.navigation.defaultpage import isDefaultPage
 from plone.app.layout.navigation.interfaces import INavigationRoot