Re: [xml-bindings]Minor bug in python bindings tree stuff

[Daniel Veillard <veillard redhat com>]

On Tue, Mar 19, 2002 at 07:11:27PM +0000, Pete Ryland wrote:
> Hi there,
> 
> I hope this is the right forum to post this too.
 
 That's the right place, though the Gnome bugzilla might be even better
    http://xmlsoft.org/bugs.html
     
> The docSetRootElement() function in the python bindings is wrong (IMO) 
> on two counts.  Firstly, it should be a method of doc rather than node, 

  Right,

> and secondly it will raise an exception when the C function 
> xmlDocSetRootElement() returns null which will happen under non-error 
> conditions since it "Returns : the old root element if any was found" 
> and this could well be null.

  Hum, right too.
The bindings are automatically generated, and only a few functions 
requires special treatment. xmlDocSetRootElement() is one of them.

> This makes it quite hard to create a document from scratch in python.  A 
> workaround goes something like this:
> 
> doc = libxml2.newDoc('1.0')
> rootNode = doc.newDocNode(None, 'myrootnode', None)
> # rootNode.docSetRootElement(doc)
> libxml2mod.xmlDocSetRootElement(doc._o, rootNode._o)
> ...

  You can still do 
    doc.addChild(rootNode)
This should work too. I realize that there is no example of building
document in http://xmlsoft.org/python.html , that's missing.

Daniel

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