[ python-Bugs-1614387 ] AttributesImpl does not implement __contains__ on Linux

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Bugs item #1614387, was opened at 2006-12-13 00:24
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Category: XML
Group: Platform-specific
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Jason Briggs (jrbriggs)
Assigned to: Nobody/Anonymous (nobody)
Summary: AttributesImpl does not implement __contains__ on Linux

Initial Comment:
Hi there

Had an odd error trying to run a utility called SVGMath:

File "/home/jason/downloads/SVGMath-0.3.1/svgmath/mathconfig.py", line 54, in startElement
    elif u"afm" in attributes:
  File "/usr/lib/python2.5/site-packages/_xmlplus/sax/xmlreader.py", line 316, in __getitem__
    return self._attrs[name]
KeyError: 0


It appears that AttributesImpl in the sax package (xmlreader.py) doesn't implement __contains__, so the 'in' operator throws an error.  This is on Kubuntu/Linux, so I'm not sure if it's distro-specific or all Linux versions of Python.

In any case, if you add:

    def __contains__(self, name):
        return self._attrs.has_key(name)

to AttributesImpl in xmlreader.py (as per the Windows version of Python), the problem goes away.

Kind regards
Jason

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