I have another question about writing the xml tree to a file.
Now, I have parsed and changed my xml tree, but I want to create the same
tree multiple times with different values and write it to one file.
Let's use this code:
import xml.etree.ElementTree as ET
doc = ET.parse('signal1.xml')
signal_node = doc.getroot()[0]
signal_node.set('name', 'Test_Name')
I have this in a function and it returns the signal_node everytime I call
it, but with a different values.
So, How do I take the returned xml and write that to one xml file?
Thanks
Johan
-----Original Message-----
From: tutor-bounces+johan=accesstel.com...@python.org
[mailto:tutor-bounces+johan=accesstel.com...@python.org] On Behalf Of Stefan
Behnel
Sent: Thursday, June 11, 2009 4:37 PM
To: tutor@python.org
Subject: Re: [Tutor] XML: changing value of elements
Hi,
it's funny how many times I see Python users go: "I have an XML problem, so
I'll use minidom." Because then they have two problems.
Johan Geldenhuys wrote:
> I have a rather complex XML file and I need to change some values inside
> this file.
>
> So far I have been using minidom, but I can't find the thing I am looking
> for.
>
> My code so far:
> """
> from xml.dom import minidom
>
> xmlFile = 'signal1.xml'
> xmlDocument = minidom.parse(xmlFile)
>
> SignalsNode = xmlDocument.firstChild
> signalNode = SignalsNode.childNodes[1]
>
> signalNode.removeAttribute("name")
> signalNode.setAttribute("name", "Test_Name")
> signalNode.getAttribute("name")
>
> descElem = signalNode.childNodes[1]
That is a lot of code just to say
import xml.etree.ElementTree as ET
doc = ET.parse('signal1.xml')
signal_node = doc.getroot()[0]
signal_node.set('name', 'Test_Name')
> I know how to manipulate the value of the attributes, but I can't seem to
> change the values of eg: "Description"
description = signal_node[0]
description.text = "New value"
> Snippet from my XML file:
>
> """
>
> <?xml version="1.0" encoding="UTF-8" ?>
>
> <file:///C:\Users\Public\XML%20parse\signal1.xml##> - <Signals>
What's that "<file:///C:\Users\Public\XML%20parse\signal1.xml##>" bit?
> <file:///C:\Users\Public\XML%20parse\signal1.xml##> - <Signal
model="Model"
> name="Model_X" type="Flyer">
>
> <Description>Some description</Description>
>
> <SpecName> Model_X </SpecName>
>
> <Reporting category="POW" name="" />
>
> <file:///C:\Users\Public\XML%20parse\signal1.xml##> - <Trigger
type="open">
>
> <Severity>normal</Severity>
>
> <Message>Model X 1</Message>
>
> </Trigger>
>
> <file:///C:\Users\Public\XML%20parse\signal1.xml##> - <Trigger
> type="close">
>
> <Severity>minor</Severity>
>
> <Message> Model X 2</Message>
>
> </Trigger>
>
> </Signal>
>
> </Signals>
> """
Stefan
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