diff --git a/openlp/core/ui/servicemanager.py b/openlp/core/ui/servicemanager.py
index 22fbb7ecc..ab36660b4 100644
--- a/openlp/core/ui/servicemanager.py
+++ b/openlp/core/ui/servicemanager.py
@@ -694,7 +694,7 @@ class ServiceManager(QtGui.QWidget):
             if plugin == u'ServiceManager':
                 startpos,  startCount = self.findServiceItem()
                 item = self.ServiceManagerList.itemAt(event.pos())
-                if item == None:
+                if item is None:
                     endpos = len(self.serviceItems)
                 else:
                     parentitem = item.parent()
diff --git a/openlp/plugins/presentations/lib/powerpointcontroller.py b/openlp/plugins/presentations/lib/powerpointcontroller.py
index a9775e086..4ac7ada66 100644
--- a/openlp/plugins/presentations/lib/powerpointcontroller.py
+++ b/openlp/plugins/presentations/lib/powerpointcontroller.py
@@ -150,7 +150,7 @@ class PowerpointController(PresentationController):
             Triggerent by new object being added to SlideController orOpenLP
             being shut down
             """
-            if self.presentation == None:
+            if self.presentation is None:
                 return
             try:
                 self.presentation.Close()
@@ -165,9 +165,9 @@ class PowerpointController(PresentationController):
             if not self.is_loaded():
                 return False
             try:
-                if self.presentation.SlideShowWindow == None:
+                if self.presentation.SlideShowWindow is None:
                     return False
-                if self.presentation.SlideShowWindow.View == None:
+                if self.presentation.SlideShowWindow.View is None:
                     return False
             except:
                 return False