Altera attributo de xml com python3

README.md

Para executar o script é necessário o python3 instalado e configurado no PATH.

python3 altera_xml.py arquivo.xml

altera_xml.py

import sys
import pdb
import xml.etree.ElementTree as ET


def processar_xml(filename, fn):
    mytree = ET.parse(filename)
    mytree = fn(mytree)
    mytree.write(filename)
    return True

def altera_xml(root):
    for name_tag in root.findall("./food/name"):
        print(name_tag.text)
        #name_tag.attrib.pop('itemid')
        name_tag.set("itemid", "1")
        print(name_tag.attrib)
    return root

if __name__ == "__main__":
    filename = sys.argv[1]
    processar_xml(filename, altera_xml)

arquivo.xml

<breakfast_menu>
    <food>
        <name itemid="1">Belgian Waffles</name>
        <price>5.95</price>
        <description>Two of our famous Belgian Waffles 
with plenty of real maple syrup</description>
        <calories>650</calories>
    </food>
    <food>
        <name itemid="2">Strawberry Belgian Waffles</name>
        <price>7.95</price>
        <description>Light Belgian waffles covered 
with strawberries and whipped cream</description>
        <calories>900</calories>
    </food>
    <food>
        <name itemid="3">Berry-Berry Belgian Waffles</name>
        <price>8.95</price>
        <description>Light Belgian waffles covered with 
an assortment of fresh berries and whipped cream</description>
        <calories>900</calories>
    </food>
    <food>
        <name itemid="4">French Toast</name>
        <price>4.50</price>
        <description>Thick slices made from our 
homemade sourdough bread</description>
        <calories>600</calories>
    </food>
</breakfast_menu>