diff -r 2a70d5240300 -r 21164625b393 editors/CodeFileEditor.py
--- a/editors/CodeFileEditor.py	Fri Nov 23 11:01:20 2018 +0100
+++ b/editors/CodeFileEditor.py	Fri Nov 23 12:13:24 2018 +0100
@@ -24,12 +24,16 @@
 
 
 from __future__ import absolute_import
+from __future__ import division
 import re
+from builtins import str as text
 
 import wx
 import wx.grid
 import wx.stc as stc
 import wx.lib.buttons
+from six.moves import xrange
+
 
 from plcopen.plcopen import TestTextElement
 from plcopen.structures import TestIdentifier, IEC_KEYWORDS, DefaultType
@@ -138,9 +142,9 @@
             section_comment = " %s section " % (section)
             len_headers = EDGE_COLUMN - len(section_comment)
             section_comment = \
-                self.COMMENT_HEADER * (len_headers / 2) + \
+                self.COMMENT_HEADER * (len_headers // 2) + \
                 section_comment + \
-                self.COMMENT_HEADER * (len_headers - len_headers / 2)
+                self.COMMENT_HEADER * (len_headers - len_headers // 2)
 
             self.SectionsComments[section] = {
                 "comment": section_comment,
@@ -629,7 +633,7 @@
             if col == 0:
                 return row + 1
             else:
-                return unicode(self.data[row].get(self.GetColLabelValue(col, False), ""))
+                return text(self.data[row].get(self.GetColLabelValue(col, False), ""))
 
     def _updateColAttrs(self, grid):
         """