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Editorial Team
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Asked: 2026-05-17T17:33:29+00:00

This code takes a bit of bad html, uses the Tidy library to clean

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This code takes a bit of bad html, uses the Tidy library to clean it up and then passes it to an HtmlLib.Reader().

import tidy
options = dict(output_xhtml=1, 
                add_xml_decl=1, 
                indent=1, 
                tidy_mark=0)

from xml.dom.ext.reader import HtmlLib
reader = HtmlLib.Reader()

doc = reader.fromString(tidy.parseString("<Html>Bad Html.", **options))

I’m not passing fromString with the right type, it seems, with this Traceback:

Traceback (most recent call last):
  File "getComicEmbed.py", line 33, in <module>
    doc = reader.fromString(tidy.parseString("<Html>Bad Html.</b>", **options))
  File "C:\Python26\lib\site-packages\_xmlplus\dom\ext\reader\HtmlLib.py", line 67, in fromString
stream = reader.StrStream(str)
  File "C:\Python26\lib\site-packages\_xmlplus\dom\ext\reader\__init__.py", line 24, in StrStream
return cStringIO.StringIO(st)
TypeError: expected read buffer, _Document found

What should I do differently? Thanks!

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1 Answer

  1. Editorial Team

    tidy’s parseString function returns a _Document instance which implements __str__ but not a buffer interface. Therefore HtmlLib.Reader().fromString cannot create a StringIO object out of it.

    This should be fairly simple, change:

    doc = reader.fromString(tidy.parseString("<Html>Bad Html.", **options))

    to

    doc = reader.fromString(str(tidy.parseString("<Html>Bad Html.", **options)))
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