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Failure parsing valid RDF from identi.ca #44

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
  g = Graph()
  url = "http://identi.ca/search/notice/rss?q=SIOC"
  res = g.parse(url) 

Note: this problem only happens when parsing Identi.ca RSS/RDF feed
(parsing other RDF files is OK). the URL provided is a valid RDF file
according to W3C RDF validator.

What is the expected output? What do you see instead?
 - expected: RDF triples resulting from parsing contents of the url

 - actual result is an AttributeError exception (full exception text below)

What version of the product are you using? On what operating system?
 - RdfLib 2.3.1 (the latest version provided by MacPorts py25-rdflib)
 - Python 2.5 (python25 from MacPorts)
 - MacOSX 10.5.6

Please provide any additional information below.

  File "IdentiSearch.py", line 47, in parseUrl
    res = g.parse(url)
  File "/opt/local/lib/python2.5/site-packages/rdflib/Graph.py", line 438,
in parse
    parser.parse(source, self, **args)
  File
"/opt/local/lib/python2.5/site-packages/rdflib/syntax/parsers/RDFXMLParser.py",
line 37, in parse
    self._parser.parse(source)
  File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/xml/s
ax/expatreader.py",
line 107, in parse
    xmlreader.IncrementalParser.parse(self, source)
  File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/xml/s
ax/xmlreader.py",
line 123, in parse
    self.feed(buffer)
  File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/xml/s
ax/expatreader.py",
line 207, in feed
    self._parser.Parse(data, isFinal)
  File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/xml/s
ax/expatreader.py",
line 349, in end_element_ns
    self._cont_handler.endElementNS(pair, None)
  File
"/opt/local/lib/python2.5/site-packages/rdflib/syntax/parsers/RDFXMLHandler.py",
line 165, in endElementNS
    self.current.end(name, qname)
  File
"/opt/local/lib/python2.5/site-packages/rdflib/syntax/parsers/RDFXMLHandler.py",
line 451, in property_element_end
    self.store.add((self.parent.subject, current.predicate, current.object))
  File "/opt/local/lib/python2.5/site-packages/rdflib/Graph.py", line 193,
in add
    self.__store.add((s, p, o), self, quoted=False)
  File "/opt/local/lib/python2.5/site-packages/rdflib/store/IOMemory.py",
line 134, in add
    for triple, cg in self.triples(triple, context):
  File "/opt/local/lib/python2.5/site-packages/rdflib/store/IOMemory.py",
line 298, in triples
    oi = self.reverse[object]
  File "/opt/local/lib/python2.5/site-packages/rdflib/Literal.py", line 53,
in __eq__
    result = self.__cmp__(other)==False
AttributeError: 'Literal' object has no attribute '__cmp__'

Original issue reported on code.google.com by uldis.bo...@gmail.com on 15 Feb 2009 at 2:31

GoogleCodeExporter commented 9 years ago 
Looks like it works in trunk. Not much we can do to fix version 2.3.1 ;) We 
could try to motivate MacPorts 
updating to 2.4.0 which has been out for a couple years at this point. Anyone 
know how to go about poking 
the MacPorts process? 

{{{
>>> from rdflib.Graph import Graph
>>> g = Graph()
>>> url = "http://identi.ca/search/notice/rss?q=SIOC"
>>> res = g.parse(url) 
>>> len(res)
481
}}}

NOTE: I'm marking this as won't fix since we can't and opening a issue #48 for 
seeing if we can get MacPorts 
to update to a newer version.

Original comment by eik...@gmail.com on 18 Feb 2009 at 3:14