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Editorial Team
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Asked: 2026-06-01T05:50:58+00:00

I have looked at the documentation here: http://docs.python.org/dev/library/xml.etree.elementtree.html#xml.etree.ElementTree.SubElement The parent and tag argument seems

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I have looked at the documentation here:

http://docs.python.org/dev/library/xml.etree.elementtree.html#xml.etree.ElementTree.SubElement

The parent and tag argument seems clear enough, but what format do I put the attribute name and value in? I couldn’t find any previous example. What format is the extra** argument?

I receive and error for trying to call the SubElement itself, saying that it is not defined. Thank you.

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1 Answer

  1. Editorial Team

    If you look further down on the same page you linked to where it deals with class xml.etree.ElementTree.Element(tag, attrib={}, **extra) it tells you how any of the extra arguments work, that is by e.g.:

    from etree import ElementTree as ET
a = ET.Element('root-node', tag='This is an extra that sets a tag')
b = ET.SubElement(a, 'nested-node 1')
c = ET.SubElement(a, 'nested-node 2')
d = ET.SubElement(c, 'innermost node')
ET.dump(a)

    This also shows you how subelement works, you simply tell it which element (can be a subelsement) that you want to attach it to. For the future, supply some code too so it’s easier to see what you’re doing/want.

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