Parsing subtags XML in Python

Question

I have this XML:

<SwitchPort name="1110" portType="RS422_Board2">
<Bus>UO-2-3</Bus>
<Device>FC3</Device>
<Appearance>Simulated</Appearance>
</SwitchPort>

I can get the portType using:

for node in NCFile.getElementsByTagName("SwitchPort"):
    portType = node.getAttribute("portType")

But I want to get the values of Apperance, Device, etc.

What am I doing wrong?

Matt

rafaelc · Accepted Answer · 2018-05-30 17:48:01Z

1

Simply use getElementsBytagName on your node and get the nodeValue

for node in NCFile.getElementsByTagName("SwitchPort"):
    portType = node.getAttribute("portType")
    device = node.getElementsByTagName("Device")[0].firstChild.nodeValue
    appearance = node.getElementsByTagName("Appearance")[0].firstChild.nodeValue

answered May 30, 2018 at 17:48

rafaelc

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3 Comments

M.Pickard Over a year ago

for node in NCFile.getElementsByTagName("SwitchPort"): portType = node.getAttribute("portType") print(portType) #device = node.getElementsByTagName("Device")[0].firstChild.nodeValue #appearance = node.getElementsByTagName("Appearance")[0].firstChild.nodeValue #print(appearance)

M.Pickard Over a year ago

Thank you Rafael: But now I just get a limited number of the data that I want. for node in NCFile.getElementsByTagName("SwitchPort"): portType = node.getAttribute("portType") print(portType) #device = node.getElementsByTagName("Device")[0].firstChild.nodeValue #appearance = node.getElementsByTagName("Appearance")[0].firstChild.nodeValue #print(appearance)

rafaelc Over a year ago

@M.Pickard sorry, its hard to understand your comments? Could you edit the post ?

Community · Accepted Answer · 2020-06-20 09:12:55Z

0

you can use lxml for parsing xml - lxml

from lxml import etree

root_element = etree.fromstring(xml_string)

device_node_value = root_element.findtext('Device')

edited Jun 20, 2020 at 9:12

CommunityBot

11 silver badge

answered May 30, 2018 at 18:01

PKD

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