Python XML Remove Some Elements and Their Children but Keep Specific Elements and Their Children

Question

I have a very large .xml file and I am trying to make a new .xml file that just has a small part of this larger file\'s contents. I want to specify an attribute (in my case

Answer 1

It's not very clear exactly what you're after, but this code produces the output you say you'd like:

from lxml import etree as ET

def filter_by_itemid(doc, idlist):
    rowset = doc.xpath("/api/result/rowset[@name='assets']")[0]
    for elem in rowset.getchildren():
        if int(elem.get("itemID")) not in idlist:
            rowset.remove(elem)
    return doc

doc = ET.parse("test.xml")
filter_by_itemid(doc, [1004072840841])

print(ET.tostring(doc))