diff --git a/Wrappers/Python/ccpi/viewer/ui/main_windows.py b/Wrappers/Python/ccpi/viewer/ui/main_windows.py
index 5fd2fe53..2bae38d3 100644
--- a/Wrappers/Python/ccpi/viewer/ui/main_windows.py
+++ b/Wrappers/Python/ccpi/viewer/ui/main_windows.py
@@ -5,6 +5,7 @@
 
 import ccpi.viewer.viewerLinker as vlink
 import vtk
+
 vtk.vtkObject.GlobalWarningDisplayOn()
 vtk.vtkOutputWindow.GetInstance().SetGlobalWarningDisplay(True)
 from ccpi.viewer import CILViewer2D, CILViewer
diff --git a/Wrappers/Python/examples/TwoLinkedViewersCentralWidget.py b/Wrappers/Python/examples/TwoLinkedViewersCentralWidget.py
index ae7b36c8..e9d5e2af 100644
--- a/Wrappers/Python/examples/TwoLinkedViewersCentralWidget.py
+++ b/Wrappers/Python/examples/TwoLinkedViewersCentralWidget.py
@@ -16,8 +16,14 @@ def __init__(self, parent=None):
         QtWidgets.QMainWindow.__init__(self, parent)
         #self.resize(800,600)
 
-        self.frame1 = QCILViewerWidget(parent, viewer=viewer2D, shape=(600, 600), interactorStyle=vlink.Linked2DInteractorStyle)
-        self.frame2 = QCILViewerWidget(parent, viewer=viewer3D, shape=(600, 600), interactorStyle=vlink.Linked3DInteractorStyle)
+        self.frame1 = QCILViewerWidget(parent,
+                                       viewer=viewer2D,
+                                       shape=(600, 600),
+                                       interactorStyle=vlink.Linked2DInteractorStyle)
+        self.frame2 = QCILViewerWidget(parent,
+                                       viewer=viewer3D,
+                                       shape=(600, 600),
+                                       interactorStyle=vlink.Linked3DInteractorStyle)
 
         head = example_data.HEAD.get()
 
diff --git a/Wrappers/Python/examples/image_reader_and_writer.py b/Wrappers/Python/examples/image_reader_and_writer.py
index 6d80c9d8..dc9236c8 100644
--- a/Wrappers/Python/examples/image_reader_and_writer.py
+++ b/Wrappers/Python/examples/image_reader_and_writer.py
@@ -20,6 +20,7 @@
 from ccpi.viewer.iviewer import iviewer
 import numpy as np
 import vtk
+
 vtk.vtkObject.GlobalWarningDisplayOn()
 vtk.vtkOutputWindow.GetInstance().SetGlobalWarningDisplay(True)