How to modify the content of an XML node using python?

Question

I have a simple problem that, i want to update/modify the content of an xml node using python. I am using python 3.6 version.

I want to write a python script that, will modify the status node content to "On" and directoryName node to "Users/

 <main>
        <status>off</status>

        <directoryName>nothing</directoryName>

 </main>

Possible duplicate of Creating a simple XML file using python — grooveplex
– grooveplex, Commented Feb 17, 2019 at 12:35
Not a duplicate but similar question : stackoverflow.com/q/8236107/1513933 — Laurent LAPORTE
– Laurent LAPORTE, Commented Feb 17, 2019 at 13:34
Possible duplicate of Find and Replace Values in XML using Python — Laurent LAPORTE
– Laurent LAPORTE, Commented Feb 17, 2019 at 13:36

Guna Rakulan · Accepted Answer · 2019-02-17 10:27:04Z

0

I got the answer. I forgot to write at the end

 xmlHandler = "System_Settings/System_controller.xml"

    xmlDom=ElementTree.parse(xmlHandler)

    xmlDom.find("status").text = "on"
    print(xmlDom.find("status").text)

    xmlDom.write(xmlHandler)

answered Feb 17, 2019 at 10:27

Guna Rakulan

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Uwe Brandt · Accepted Answer · 2019-02-17 10:41:04Z

0

If you can afford to install an additional package, take a look at BeautifulSoup. It makes parsing html and xml quite simple.

import bs4
xml = """
<main>
    <status>off</status>
    <directoryName>nothing</directoryName>
</main>"""
soup = bs4.BeautifulSoup(xml, "xml")
soup.status.string="on"
print(soup.prettify())

answered Feb 17, 2019 at 10:41

Uwe Brandt

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Laurent LAPORTE · Accepted Answer · 2019-02-17 12:33:16Z

0

Using lxml library (which is also used by BeautifulSoup):

from lxml import etree

node = etree.XML("""
<main>
    <status>off</status>
    <directoryName>nothing</directoryName>
</main>""")
status = "On"

status_node = node.xpath("/main/status")[0]
status_node.text = status

Then with print(etree.tounicode(node)), you get:

<main>
    <status>On</status>
    <directoryName>nothing</directoryName>
</main>

answered Feb 17, 2019 at 12:33

Laurent LAPORTE

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