Comment 5 for bug 168744

I fixed this for the xmoto inkscape plugin by editing ~/.inkscape/extensions/inkex.py
and adding this line:

sys.path.append('/usr/lib/python%s/site-packages/oldxml' % sys.version[:3])

so it looks like this:

<...>
    return retval

sys.path.append('/usr/lib/python%s/site-packages/oldxml' % sys.version[:3])

try:
    import xml.dom.ext
    import xml.dom.minidom
    import xml.dom.ext.reader.Sax2
    import xml.xpath
<...>