[lxml-dev] Working with <?xml-stylesheet ... ?>

[Stefan Behnel]

Hi,

Martin Aspeli wrote:
> I'd like to quickly/efficiently get a list of all <?xml-stylesheet ?> 
> processing instructions in a given document.

    reversed( el for el in root.itersiblings(preceding=True)
              if el.tag is etree.ProcessingInstruction
                 and el.target == "xml-stylesheet" )


> Also, serialising using lxml.html.tostring() seems to lose the 
> <?xml-stylesheet ?> PI. Is this by design?

You need to wrap the root element in an ElementTree and serialise that.

Stefan