getroot() problem

[水静流深]

C:\Documents and Settings\peng>cd c:\python32
 
 
 
C:\Python32>python
 
Python 3.2.2 (default, Sep  4 2011, 09:51:08) [MSC v.1500 32 bit (Intel)] on win
 
32
 
Type "help", "copyright", "credits" or "license" for more information.
 
>>> import lxml.html
 
>>> sfile='http://finance.yahoo.com/q/op?s=A+Options'
 
>>> root=lxml.html.parse(sfile).getroot()

there is no problem to  parse  : 


http://finance.yahoo.com/q/op?s=A+Options'




why  i can not parse

http://frux.wikispaces.com/  ?? 
 
>>> import lxml.html
 
>>> sfile='http://frux.wikispaces.com/'
 
>>> root=lxml.html.parse(sfile).getroot()
 
Traceback (most recent call last):
 
  File "<stdin>", line 1, in <module>
 
  File "C:\Python32\lib\site-packages\lxml\html\__init__.py", line 692, in parse
 
 
 
    return etree.parse(filename_or_url, parser, base_url=base_url, **kw)
 
  File "lxml.etree.pyx", line 2942, in lxml.etree.parse (src/lxml/lxml.etree.c:5
 
4187)
 
  File "parser.pxi", line 1528, in lxml.etree._parseDocument (src/lxml/lxml.etre
 
e.c:79485)
 
  File "parser.pxi", line 1557, in lxml.etree._parseDocumentFromURL (src/lxml/lx
 
ml.etree.c:79768)
 
  File "parser.pxi", line 1457, in lxml.etree._parseDocFromFile (src/lxml/lxml.e
 
tree.c:78843)
 
  File "parser.pxi", line 997, in lxml.etree._BaseParser._parseDocFromFile (src/
 
lxml/lxml.etree.c:75698)
 
  File "parser.pxi", line 564, in lxml.etree._ParserContext._handleParseResultDo
 
c (src/lxml/lxml.etree.c:71739)
 
  File "parser.pxi", line 645, in lxml.etree._handleParseResult (src/lxml/lxml.e
 
tree.c:72614)
 
  File "parser.pxi", line 583, in lxml.etree._raiseParseError (src/lxml/lxml.etr
 
ee.c:71927)
 
IOError: Error reading file 'b'http://frux.wikispaces.com/'': b'failed to load e
 
xternal entity "http://frux.wikispaces.com/"'
 
>>>
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