diff --git a/unittests/test_lib_pubsub_listener.py b/unittests/test_lib_pubsub_listener.py
index f4a9e9eb..039d629d 100644
--- a/unittests/test_lib_pubsub_listener.py
+++ b/unittests/test_lib_pubsub_listener.py
@@ -10,11 +10,11 @@ import wtc
 
 from wx.lib.pubsub.core.weakmethod import WeakMethod
 from wx.lib.pubsub.core import listener
-from wx.lib.pubsub.core.listener import   \
-     Listener, ListenerValidator, \
-     ListenerInadequate, \
-     CallArgsInfo, \
-     getArgs
+from wx.lib.pubsub.core.listener import ( 
+     Listener, ListenerValidator,
+     #ListenerInadequate,
+     CallArgsInfo,
+     getArgs)
 
 #---------------------------------------------------------------------------
 
diff --git a/unittests/test_lib_pubsub_spec.py b/unittests/test_lib_pubsub_spec.py
index cf9b6e8a..b538a81a 100644
--- a/unittests/test_lib_pubsub_spec.py
+++ b/unittests/test_lib_pubsub_spec.py
@@ -9,12 +9,12 @@ import imp_unittest, unittest
 import wtc
 
 
-from wx.lib.pubsub.core.topicargspec import \
-     ArgsInfo, \
-     ArgSpecGiven, \
-     SenderMissingReqdArgs, \
-     SenderUnknownOptArgs
-
+from wx.lib.pubsub.core.topicargspec import (
+     ArgsInfo, 
+     ArgSpecGiven, 
+     #SenderMissingReqdArgs, 
+     #SenderUnknownOptArgs
+     )
 
 #---------------------------------------------------------------------------
 
diff --git a/unittests/test_lib_pubsub_topic.py b/unittests/test_lib_pubsub_topic.py
index 2cd4b062..b0631627 100644
--- a/unittests/test_lib_pubsub_topic.py
+++ b/unittests/test_lib_pubsub_topic.py
@@ -13,8 +13,8 @@ from wx.lib.pubsub.core.topicobj     import Topic
 from wx.lib.pubsub.core.treeconfig   import TreeConfig
 from wx.lib.pubsub.core.topicutils   import ALL_TOPICS
 from wx.lib.pubsub.core.topicargspec import ArgsInfo, ArgSpecGiven
-from wx.lib.pubsub.core.listener     import ListenerInadequate
-from wx.lib.pubsub.core.topicexc     import ListenerSpecInvalid
+#from wx.lib.pubsub.core.listener     import ListenerInadequate
+#from wx.lib.pubsub.core.topicexc     import ListenerSpecInvalid
 
 
 
diff --git a/unittests/test_lib_pubsub_topicmgr.py b/unittests/test_lib_pubsub_topicmgr.py
index 79e44cfd..5caf08a1 100644
--- a/unittests/test_lib_pubsub_topicmgr.py
+++ b/unittests/test_lib_pubsub_topicmgr.py
@@ -9,26 +9,27 @@
 import imp_unittest, unittest
 import wtc
 
-from wx.lib.pubsub.pub import \
-     ALL_TOPICS, \
-     ListenerSpecInvalid, \
-     ITopicDefnProvider, \
-     TopicTreeTraverser, \
-     UndefinedTopic, \
-     UndefinedSubtopic, \
-     ListenerNotValidatable
+from wx.lib.pubsub.pub import (
+     ALL_TOPICS, 
+     #ListenerSpecInvalid, 
+     #ITopicDefnProvider, 
+     TopicTreeTraverser, 
+     #UndefinedTopic, 
+     #UndefinedSubtopic, 
+     #ListenerNotValidatable
+     )
 
 from wx.lib.pubsub.core.topicmgr import \
      ArgSpecGiven
 
-from wx.lib.pubsub.core.topicutils import \
-     TopicNameInvalid, \
+from wx.lib.pubsub.core.topicutils import (
+     #TopicNameInvalid, 
      validateName
+     )
 
 from wx.lib.pubsub.utils.topictreeprinter import \
      printTreeDocs, ITopicTreeVisitor
 
-
 class lib_pubsub_TopicMgr0_Basic(wtc.PubsubTestCase):
     """
     Only tests TopicMgr methods. This must use some query methods on