I am using the standard xml library to create another library able to read, and maybe write, xmp files. Then an xml library bug popped out: xml.dom.minidom was unable to parse an xml file that came from an example provided by an official organism.(http://www.iptc.org/IPTC4XMP) The parsed file was somewhat hairy, but I have been able to reproduce the bug with a simplified version, that goes:
<?xpacket begin='' id='W5M0MpCehiHzreSzNTczkc9d'?> <x:xmpmeta xmlns:x='adobe:ns:meta/' x:xmptk='XMP toolkit 3.0-28, framework 1.6'> <rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#' xmlns:iX='http://ns.adobe.com/iX/1.0/'> <rdf:Description rdf:about='uuid:f5b64178-9394-11d9-bb8e-a67e6693b6e9' xmlns:xmpPLUS='XMP Photographic Licensing Universal System (xmpPLUS, http://ns.adobe.com/xap/1.0/PLUS/)'> <xmpPLUS:CreditLineReq>False</xmpPLUS:CreditLineReq> <xmpPLUS:ReuseAllowed>False</xmpPLUS:ReuseAllowed> </rdf:Description> </rdf:RDF> </x:xmpmeta> <?xpacket end='w'?> The offending part is the one that goes: xmpPLUS='....' it triggers an exception: ValueError: too many values to unpack, in _parse_ns_name. Some debugging showed an obvious mistake in the scanning of the name argument, that goes beyond the closing " ' ". Im aware I dont give here enough matter to allow full understanding of the bug. But thats not the place for this, and thats not my point. Now my points are: - how do I spot the version of a given library? There is a __version__ attribute of the module, is that it? - How do I access to a given library buglist? Maybe this one is known, about to be fixed, it would then be useless to report it. - How do I report bugs, on a standard lib? - I tried to copy the lib somewhere, put it BEFORE the official lib in "the path" (that is:sys.path), the stack shown by the traceback still shows the original files being used. Is there a special mechanism bypassing the sys.path search, for standard libs? (I may be wrong on this, it seems hard to believe...) - does someone know a good tool to validate an xml file? btw, my code: from nxml.dom import minidom ... class whatever: def __init__(self, inStream): xmldoc = minidom.parse(inStream) Thanks for any help... -- http://mail.python.org/mailman/listinfo/python-list
