Xavier. Good afternoon. After realizing that I had to import from lxml, it wroks.
https://git.xmpp-it.net/sch/publish-happy/commit/87d76d2585c58183752bfb0b80bb34881bef2256 I have failed with the namespaces, and I shall try again. Thank you, Schimon On Mon, 16 Jun 2025 08:04:01 +0200 Xavier Morel <x...@odoo.com> wrote: > On 14/06/25 20:33, Schimon Jehudah via lxml - The Python XML Toolkit > wrote:> Would it be sensible to allow a negative value: > > > > e_feed.insert(-1, xslt_reference) > > If you test this, you will find out that inserting at negative > indexes is already a valid operation: `insert(-x, el)` inserts at > index `x` *from the end*. > > This is the normal behaviour of indexing in Python. > > And if you were using lxml, which you are not (lxml and xml.etree are > different packages), what you request would already work if you used > the `addprevious` method: > > >>> e_feed = ET.Element("feed") > >>> e_feed.set("xmlns", "http://www.w3.org/2005/Atom";) > >>> xslt_reference = ET.ProcessingInstruction( > ... "xml-stylesheet", > ... "type=\"text/xml\" href=\"stylesheet.xsl\"") > >>> > >>> ET.tostring(ET.ElementTree(e_feed)) > b'<feed xmlns="http://www.w3.org/2005/Atom"/>' > >>> e_feed.addprevious(xslt_reference) > >>> ET.tostring(ET.ElementTree(e_feed)) > b'<?xml-stylesheet type="text/xml" href="stylesheet.xsl"?><feed > xmlns="http://www.w3.org/2005/Atom"/>' > > The way you namespace the element is also very much a serialization > hack, you should create the element using a QName tag or Clark's > Notation. You can use `register_namespace` to force the namespace > prefix if you care: > > >>> doc1 = ET.Element('{foo}bar') > >>> doc2 = ET.Element(ET.QName('foo', 'bar')) > >>> ET.tostring(doc1), ET.tostring(doc2) > (b'<ns0:bar xmlns:ns0="foo" />', b'<ns0:bar xmlns:ns0="foo" />') > >>> ET.register_namespace('', 'foo') > >>> ET.tostring(doc1), ET.tostring(doc2) > (b'<bar xmlns="foo" />', b'<bar xmlns="foo" />') > > in lxml you can also use the nsmap feature: > > >>> etree.tostring(etree.Element('{foo}bar', nsmap={None: 'foo'})) > b'<bar xmlns="foo"/>' _______________________________________________ lxml - The Python XML Toolkit mailing list -- lxml@python.org To unsubscribe send an email to lxml-le...@python.org https://mail.python.org/mailman3//lists/lxml.python.org Member address: arch...@mail-archive.com
