Comments on: WebPath: Python XPath 2 engine now up on Sourceforge http://dubinko.info/blog/2008/01/25/webpath-python-xpath-2-engine-now-up-on-sourceforge/ From an XML geek, a reader, a writer, a connector, a man of the people (says keep hope alive) Sat, 01 Oct 2011 16:18:55 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Geoffrey Sneddon http://dubinko.info/blog/2008/01/25/webpath-python-xpath-2-engine-now-up-on-sourceforge/comment-page-1/#comment-3923 Geoffrey Sneddon Mon, 11 Feb 2008 23:31:34 +0000 http://dubinko.info/blog/2008/01/25/webpath-python-xpath-2-engine-now-up-on-sourceforge/#comment-3923 Ah, the above issue seems to be with minidom, and not WebPath. I've moved over to using pxdom, and that (at least) works all right. Ah, the above issue seems to be with minidom, and not WebPath. I’ve moved over to using pxdom, and that (at least) works all right.

]]> By: Geoffrey Sneddon http://dubinko.info/blog/2008/01/25/webpath-python-xpath-2-engine-now-up-on-sourceforge/comment-page-1/#comment-3919 Geoffrey Sneddon Sun, 10 Feb 2008 22:19:42 +0000 http://dubinko.info/blog/2008/01/25/webpath-python-xpath-2-engine-now-up-on-sourceforge/#comment-3919 Hey! I managed to stumble across this while looking for a lightweight implementation of XPath written in Python (as opposed to relying on C, and re-implementing everything under the sun as part of it (like the entire DOM)). On the subject of minidom, I'd say just rely on having an implementation of DOM (level 3 I assume you'd want for compareDocumentPosition() so you return NodeLists in document order). Admittedly, this prohibits use of minidom, but what are the real issues with it? Just how "mini" it is? And on one final note, a possible bug (though my XPath may just be wrong :)): <code>//span[@title='XHTML']</code> causes: File "/Volumes/Data/Source/webpath/wpcore.py", line 42, in string return ''.join([n.nodeValue for n in allnodes if n.nodeType==3]) AttributeError: Text instance has no attribute 'nodeValue' Alas, I'd offer to help if I could, but my knowledge of XPath is a bit too limited to be of much help (and the source is pushing my knowledge of Python, but I can just cope with that). Hey! I managed to stumble across this while looking for a lightweight implementation of XPath written in Python (as opposed to relying on C, and re-implementing everything under the sun as part of it (like the entire DOM)).

On the subject of minidom, I’d say just rely on having an implementation of DOM (level 3 I assume you’d want for compareDocumentPosition() so you return NodeLists in document order). Admittedly, this prohibits use of minidom, but what are the real issues with it? Just how “mini” it is?

And on one final note, a possible bug (though my XPath may just be wrong :)): //span[@title='XHTML'] causes:

File “/Volumes/Data/Source/webpath/wpcore.py”, line 42, in string
return ”.join([n.nodeValue for n in allnodes if n.nodeType==3])
AttributeError: Text instance has no attribute ‘nodeValue’

Alas, I’d offer to help if I could, but my knowledge of XPath is a bit too limited to be of much help (and the source is pushing my knowledge of Python, but I can just cope with that).

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