[lxml-dev] Bug: type annotation namespace-prefix goes missing

[Christian Zagrodnick]

Hi there,

given the following little script:



import lxml.etree
import lxml.objectify

xml = lxml.objectify.XML(
    '<a xmlns:py="http://codespeak.net/lxml/objectify/pytype">'
    '<b name="b1"><title 
py:pytype="str">tit</title><text>foo</text></b><b 
name="b2"><text>bar</text></b></a>')

foo = xml['b'][0]
bar = xml['b'][1]
foo['text'] = 'FOO!'


print lxml.etree.tostring(xml, pretty_print=True)


foo = xml.xpath('b[@name="b1"]')[0]
bar = xml.xpath('b[@name="b2"]')[0]
xml['b'] = [bar, foo]

print lxml.etree.tostring(xml, pretty_print=True)







The first print statement prints, where everything is fine:

<a xmlns:py="http://codespeak.net/lxml/objectify/pytype">
  <b name="b1">
    <title py:pytype="str">tit</title>
    <text py:pytype="str">FOO!</text>
  </b>
  <b name="b2">
    <text>bar</text>
  </b>
</a>

The second prints:


<a xmlns:py="http://codespeak.net/lxml/objectify/pytype">
  <b name="b2">
    <text>bar</text>
  </b>
  <b name="b1">
    <title py:pytype="str">tit</title>
    <text pytype="str">FOO!</text>
  </b>
</a>

Note the last <text node where it says pytype instead of py:pytype.

I think is has something todo with the xpath, but I cannot really 
figure out what.


That's with lxml 2.0 and python 2.4


-- 
Christian Zagrodnick

gocept gmbh & co. kg  ·  forsterstrasse 29 · 06112 halle/saale
www.gocept.com · fon. +49 345 12298894 · fax. +49 345 12298891