Setting and accessing namespaces in python lxml

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00:00 Question
01:58 Accepted answer (Score 1)
02:32 Thank you

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Full question
https://stackoverflow.com/questions/4811...

Accepted answer links:
[root.nsmap]: http://lxml.de/api/lxml.etree._Element-c...

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Tags
#python #namespaces #lxml

#avk47

ACCEPTED ANSWER

Score 1

Modifying root.nsmap has no effect. But you can create another dictionary and modify that one. Example:

from lxml import etree

doc = """
<root xmlns:skos="http://www.w3.org/2004/02/skos/core#">
   <skos:prefLabel xml:lang='en'>FOO</skos:prefLabel>
   <skos:prefLabel xml:lang='de'>BAR</skos:prefLabel>
</root>"""

root = etree.fromstring(doc)
nsmap = root.nsmap
nsmap["xml"] = "http://www.w3.org/XML/1998/namespace" 

en = root.find(".//skos:prefLabel[@xml:lang='en']", namespaces=nsmap)
print(en.text)

Output:

FOO