Modify xml element when having similar names in python

Question

I need to modify the parameters of a function in xml file with ElementTree while the elements have similar names. In this example I want to change only the number 2 and keep the others. Is it possible?

<Model>
    <Function>
      <param>x</param>
      <param>type</param>
      <param>2</param>
      <param>5</param>
     </Function>
</Model>

you can use xpath to select the correct param-element based on the value 2 (see here). alternatively you could also select the third occurrence of param (see here). once you have the element, use ElementTrees capabilities to change the text (see here). — sim
– sim, Commented Feb 21, 2020 at 14:43

dabingsou · Accepted Answer · 2020-07-15 14:26:42Z

0

Just one example, though a little late.

from simplified_scrapy import SimplifiedDoc, utils, req
html = '''
<Model>
    <Function>
      <param>x</param>
      <param>type</param>
      <param>2</param>
      <param>5</param>
     </Function>
</Model>
'''
doc = SimplifiedDoc(html)
# Use text 2
param = doc.getElementByText('2',tag='param')
# Use index
param = doc.selects('param')[2]
param.setContent('Modified')
print(doc.html)

Result:

<Model>
    <Function>
      <param>x</param>
      <param>type</param>
      <param>Modified</param>
      <param>5</param>
     </Function>
</Model>

answered Jul 15, 2020 at 14:26

dabingsou

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