how to remove element using ElementTree.fromstring

Question

Hello how I can remove element using Python's ElementTree.fromstring.

I want to remove the entire "cpu block" from the following xml, would you please help me.

<domain type='kvm'>
  <name>udraz</name>
  <uuid>a62e21b0-2111-421e-a27f-1bc7f6b3c46f</uuid>
  <description>My VM</description>
  <memory unit='KiB'>1048576</memory>
  <currentMemory unit='KiB'>1048576</currentMemory>
  <vcpu placement='static'>4</vcpu>
  <os>
    <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
    <boot dev='cdrom'/>
    <boot dev='hd'/>
    <bootmenu enable='yes'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <cpu mode='custom' match='exact'>
    <model fallback='allow'>Nehalem</model>
  </cpu>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
</domain>

Gennady Kandaurov · Accepted Answer · 2016-12-12 06:34:40Z

1

You can do it with Element.remove method like so:

from xml.etree import ElementTree

root = ElementTree.fromstring(your_xml_string)    
for elem in root.findall("cpu"):
    root.remove(elem)

answered Dec 12, 2016 at 6:34

Gennady Kandaurov

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nick_gabpe · Accepted Answer · 2016-12-13 11:34:08Z

0

This will remove all elements with tag "cpu"

from xml.etree import ElementTree as et
tree = et.fromstring(xml)
[ tree.remove(elem) for elem in tree.iter() if elem.tag=="cpu"]

if you want remove all elements with any mentions with "cpu" in tag you should use if elem.tag in "cpu"

answered Dec 13, 2016 at 11:34

nick_gabpe

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