CODEWITHSUNDEEP
pythonxml
Karthikeyan M
Karthikeyan M

Reputation: 23

Change the key value in XML using Python

I need to modify the online_hostname key value in XML using python. I tried xml element tree but it does not work.

import xml.etree.ElementTree as ET

xml_tree = ET.parse('test.xml')
root = xml_tree.getroot()
root[0][0] = "requiredvalue"

test.xml file is as below:

<?xml version="1.0" encoding="UTF-8" ?>
<bzinfo>
    <myidentity online_hostname="testdevice-air_2022_01_25" 
                bzlogin="[email protected]" />
</bzinfo>

Error:

IndexError: child assignment index out of range

Upvotes: 1

Views: 580

Answers (1)

DeepSpace
DeepSpace

Reputation: 81594

It is much better to explicitly search the required node (find will do in this case) instead of using indexes on the root node:

import xml.etree.ElementTree as ET

xml_tree = ET.parse('test.xml')
root = xml_tree.getroot()

myidentity_node = root.find('myidentity')
myidentity_node.attrib['online_hostname'] = 'required_value'

xml_tree.write('modified.xml')

modified.xml after running this code:

<bzinfo>
    <myidentity bzlogin="[email protected]" online_hostname="required_value" />
</bzinfo>

Upvotes: 1

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