--- a/controls/DurationCellEditor.py	Thu Sep 28 17:24:33 2017 +0300
+++ b/controls/DurationCellEditor.py	Fri Sep 29 15:36:33 2017 +0300
@@ -34,7 +34,7 @@
     the DurationEditorDialog.
     '''
     def __init__(self, parent):
-        wx.Control.__init__(self, parent)
+        wx.PyControl.__init__(self, parent)
 
         main_sizer = wx.FlexGridSizer(cols=2, hgap=0, rows=1, vgap=0)
         main_sizer.AddGrowableCol(0)