How to add an xml element and wrap the data (inner-text) in CDATA tags using ElementTree

Question

I'm struggling to find a good example of how one would add an XML Element to an XML Document and also add the data (inner-text) to this same element, but wrap the data in CDATA tags?

Here is an example of what I need. I have the following document.

<data>
     <config>
          <documentation>This is my documentation<documentation>
     </config>
</data>

I then want to add a element and CDATA as the inner-text. So it would look something like this. The data that I need to wrap in CDATA tags can be fairly large and will need to be read/referenced from file.

<data>
     <config>
              <documentation>This is my documentation<documentation>
              <script><![CDATA[
              function foo()
              …
              End
              ]]>
              </script>
     </config>
</data>

I then need to write the changes out to a new document... (so that I have the original and the additions.

Possible duplicate of stackoverflow.com/questions/174890/… and stackoverflow.com/questions/4474754/… — Alastair McCormack
– Alastair McCormack, Commented Mar 27, 2015 at 16:06

Taylor Glaeser · Accepted Answer · 2015-03-27 16:04:09Z

1

You should be able to use the .CDATA() method provided by lxml.

http://lxml.de/api.html#cdata

Just create a SubElement as normal

some_var = root.find('config')
another_var = etree.SubElement(some_var, 'script')
another_var.text = etree.CDATA(another_var.text)

Then you can write the data out as normal.

answered Mar 27, 2015 at 16:04

Taylor Glaeser

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