Python XML processing with lxml

This is a handy constructor that accomplishes the two basic operations in adding an element to a tree:

Here is the general form:

SubElement ( parent, tag, attrib={}, **extras ):

The first argument, parent, is the Element instance under which the newly created Element instance is to be added as its next child.

The tag, attrib, and **extras arguments work exactly the same as they do in the call to Element() described in Section 6.2, “The Element() constructor”.

If you are working with multiple namespaces, you may also include an nsmap keyword argument defining your preferred namespace prefixes. For more on the nsmap argument, see Section 6.3, “The ElementTree() constructor”.

Here's an example. Suppose you want to build this XML:

<state name="New Mexico">
  <county name="Socorro">
    <ppl name="Luis Lopez"/>
  </county>
</state>

Here's the code to build it, and then display it, interactively:

>>> st=etree.Element('state', name='New Mexico')
>>> co=etree.SubElement(st, 'county', name='Socorro')
>>> ppl=etree.SubElement(co, 'ppl', name='Luis Lopez')
>>> print etree.tostring(st)
<state name="New Mexico"><county name="Socorro"><ppl name="Luis Lopez"/>
</county></state>
>>>