python - Tags with : in name in lxml -

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i'm trying use lxml.etree parse wordpress export document (it's xml, rss like). i'm interested in published posts, i'm using following loop through published posts:

for item in data.findall("item"):     if item.find("wp:post_type").text != "post":         continue     if item.find("wp:status").text != "publish":         continue     write_post(item)

where data tag item tags found in. item tags contain posts, pages, , drafts. problem lxml can't find tags have : in name (e.g. wp:post_type). when try item.find("wp:post_type") error:

traceback (most recent call last):   file "<input>", line 1, in <module>   file "lxml.etree.pyx", line 1279, in lxml.etree._element.find (src/lxml/lxml.e tree.c:38124)   file "/usr/lib64/python2.7/site-packages/lxml/_elementpath.py", line 210, in f ind     = iterfind(elem, path)   file "/usr/lib64/python2.7/site-packages/lxml/_elementpath.py", line 200, in terfind     selector = _build_path_iterator(path)   file "/usr/lib64/python2.7/site-packages/lxml/_elementpath.py", line 184, in _ build_path_iterator     selector.append(ops[token[0]](_next, token)) keyerror: ':'

i assume keyerror : ':' refers colon in name of tag being invalid. there way can escape colon lxml finds right tag? : have special meaning in context? or doing wrong? appreciated.

the : xml namespace separator. escape colon in lxml, need replace namespace url within curly braces, in item.find("{http://example.org/}status").text.


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