python lxml - modify attributes

Question

from lxml import objectify, etree

root = etree.fromstring(\'\'\'


    

        

Answer 1

import lxml.etree as et

tree = et.fromstring('''
... your xml ...
''')

for host_ip in tree.xpath("/scenario/init/send/command[@name='CER']/avp[@name='Host-IP-Address']"):
    host_ip.attrib['value'] = 'foo'

print et.tostring(tree)