IOError

./clean2.py
Traceback (most recent call last):
  File "./clean2.py", line 10, in <module>
    tree = lh.parse(name)
  File "/usr/lib/python2.7/dist-packages/lxml/html/__init__.py", line 940, in parse
    return etree.parse(filename_or_url, parser, base_url=base_url, **kw)
  File "src/lxml/lxml.etree.pyx", line 3427, in lxml.etree.parse (src/lxml/lxml.etree.c:81110)
  File "src/lxml/parser.pxi", line 1811, in lxml.etree._parseDocument (src/lxml/lxml.etree.c:117841)
  File "src/lxml/parser.pxi", line 1837, in lxml.etree._parseDocumentFromURL (src/lxml/lxml.etree.c:118188)
  File "src/lxml/parser.pxi", line 1741, in lxml.etree._parseDocFromFile (src/lxml/lxml.etree.c:117100)
  File "src/lxml/parser.pxi", line 1138, in lxml.etree._BaseParser._parseDocFromFile (src/lxml/lxml.etree.c:111646)
  File "src/lxml/parser.pxi", line 595, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:105102)
  File "src/lxml/parser.pxi", line 706, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:106810)
  File "src/lxml/parser.pxi", line 633, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:105621)
IOError: Error reading file '5.htm': failed to load external entity "5.htm"