laga@prometheus:~/dev/mythtv/21-fixes-public/mythplugins/mythvideo/mythvideo/scripts$ python test.py
Traceback (most recent call last):
  File "test.py", line 11, in <module>
    from xml.dom.ext.reader import HtmlLib
ImportError: No module named ext.reader



laga@prometheus:~/dev/mythtv/21-fixes-public/mythplugins/mythvideo/mythvideo/scripts$ cat test.py
import sys
appendpath=False
# This is done for Ubuntu, they are removing PyXML.
try:
        from xml.dom.ext.reader import HtmlLib
except:
        appendpath=True

if appendpath:
        sys.path.append('/usr/lib/python%s/site-packages/oldxml' % sys.version[:3])
        from xml.dom.ext.reader import HtmlLib