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

[jholg at gmx.de]

Hi,


> > it's not related to XPath, it's just that you change the order of the 
> children
> > in your test:
> > 
> > -------------------------
> > import lxml.etree
> > import lxml.objectify
> > 
> > [...]
> > 
> > gives the same result. I don't even think it's related to objectify.
 Yep, right. Here's without any objectify-ism:

 >>> from lxml import etree
>>>
>>> xml = etree.fromstring(
...     '<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>')
>>>
>>> print etree.tostring(xml, pretty_print=True)
<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[0]
>>> bar = xml[1]
>>>
>>> print etree.tostring(xml, pretty_print=True)
<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>
>>>
>>> xml[0] = bar
>>> xml.append(foo)
>>>
>>> print etree.tostring(xml, pretty_print=True)
<a xmlns:py="http://codespeak.net/lxml/objectify/pytype">
  <b name="b2">
    <text>bar</text>
  </b>
  <b name="b1">
    <title pytype="str">tit</title>
    <text>foo</text>
  </b>
</a>
>>>
>>> print etree.__version__
2.0.alpha4
>>>
>>> 
 FWIW this also fails with older versions, but:

 - 1.2.1 fails with the objectify version, but not the "pure" etree one

- 1.3beta  fails with the objectify version, but not the "pure" etree one

 Holger 

 
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