diff -r c02818d7e29f -r 7e61baa047f0 controls/DurationCellEditor.py
--- a/controls/DurationCellEditor.py	Mon Aug 14 22:30:41 2017 +0300
+++ b/controls/DurationCellEditor.py	Mon Aug 14 23:27:15 2017 +0300
@@ -26,6 +26,7 @@
 
 from dialogs.DurationEditorDialog import DurationEditorDialog
 
+
 class DurationCellControl(wx.PyControl):
 
     '''
@@ -94,6 +95,7 @@
     def SetFocus(self):
         self.Duration.SetFocus()
 
+
 class DurationCellEditor(wx.grid.PyGridCellEditor):
     '''
     Grid cell editor that uses DurationCellControl to display an edit button.