lxml and xslt extensions

dasacc22 dasacc22 at gmail.com
Sat Apr 4 18:09:17 CEST 2009

On Apr 4, 11:31 am, dasacc22 <dasac... at gmail.com> wrote:
> Hi,
> Im not sure where else to ask this. But basically Im having trouble
> figuring out how to successfully apply multiple extensions in a single
> transformation. So for example if i have
> <xsl:stylesheet .../>
> <xsl:template...>
> <my:tag/>
> <my:tag/>
> </xsl:template>
> </xsl:stylesheet>
> in my xsl and my xslt extension looks like
> class TagExtension(etree.XSLTExtension):
>   def execute( ..., output_parent):
>     print 'executing tag_extension'
>     tag = etree.Element('p')
>     tag.text = 'Hello'
>     output_parent.append(tag)
> well then the transformation works for the first tag and appends it to
> the root of the created doc but all subsequent calls dont append
> (maybe b/c output_parent is now somewhere else for return?). And to
> clarify, I know that its the first call that completes and all
> subsequent calls fail b/c i have a subsequent call that performs a
> different transformation.
> Thanks for any help or hints,
> Daniel

Oh well I found the culprit, etree.tostring seems to cut it off after
the first transformation, simply doing a

$> print result

displays the entire document. To make use of the keyword options
xml_declaration, pretty_print, encoding, I tried using the .write
method of result to a StringIO but it produces the same clipped
result. Guess Ill have to edit the .docinfo attributes on the result
and return the string

More information about the Python-list mailing list