Comment 3 for bug 470378

Installation identical as defined in this Bug Description.
The error depends on the confusion between python-wxgtk2.6 and python-wxgtk2.8.
I verified with ipython that the predefined library loaded under the name wx.tools is the following:
import wx.tools
wx.tools.__file__
'/usr/lib/python2.6/dist-packages/wx-2.6-gtk2-unicode/wx/tools/__init__.pyc'

Then I substituted the original /usr/bin/editra my ~/bin/my_editra:
      #!/usr/bin/python2.6
      # -*- coding: utf-8 -*-
      # ~/bin/my_editra

      import wxversion
      wxversion.select('2.8-gtk2-unicode')
      from wx.tools.Editra.launcher import main
      main()

Running ~/bin/my_editra reveals that the error is no more equal to the present Bug #470378, but corresponds exactly to the Bug #490863.
The required module ebmlib is not present.

I've found a full patched source prepared for Salix, a linux distribution based on Slackware:
http://download.salixos.org/i486/13.0/source/l/wxPython
The accluded file editra-ebmlib.diff shows in full evidence the problem of the ebmlib module.