diff --git a/examples/dokk/spacenav_connect.py b/examples/dokk/spacenav_connect.py
index 2840d3cb6b792a966eeb8fb5c924705c404a30ea..652e1eb7198e9ab06dda008e9266654566dc47e3 100644
--- a/examples/dokk/spacenav_connect.py
+++ b/examples/dokk/spacenav_connect.py
@@ -3,7 +3,6 @@ from PyQt4 import QtCore, QtGui
 from ost import geom, gfx, gui
 
 import sys, random
-import sip
 
 class SpnavWidget(QtCore.QObject):
   def __init__(self, spnav,
@@ -44,4 +43,4 @@ spnav = gui.SpnavInput.GetQThread()
 spnav.start()
 pts=SpnavWidget(spnav)
 gfx.Scene().AutoAutoslab(False)
-gfx.Scene().SetNearFar(1,10000)
\ No newline at end of file
+gfx.Scene().SetNearFar(1,10000)
diff --git a/examples/ui/mdi_example.py b/examples/ui/mdi_example.py
index bdb48a30485fba2574a01c35e729669a98301d36..80e99977627c063c8d8c8e1be194d077bc6db553 100644
--- a/examples/ui/mdi_example.py
+++ b/examples/ui/mdi_example.py
@@ -20,7 +20,6 @@ from PyQt4 import QtCore, QtGui
 
 from ost import gui
 import sys, random
-import sip
 
 class Points(QtGui.QWidget):
     def __init__(self, parent=None):
diff --git a/examples/ui/menubar_example.py b/examples/ui/menubar_example.py
index 376220c7c23e9218b3568831d86162d21f335a91..40a193bca724ec57e5898e274ac74a8811c5a78d 100644
--- a/examples/ui/menubar_example.py
+++ b/examples/ui/menubar_example.py
@@ -18,7 +18,6 @@
 #------------------------------------------------------------------------------
 from ost import gui
 from ost.gui import FileLoader
-import sip
 
 from PyQt4 import QtCore, QtGui