CODEWITHSUNDEEP
pythonxml
Juanvulcano
Juanvulcano

Reputation: 1396

Python - Element Tree find

I have an xml string that looks something like this:

I am using the Element Tree library

<?xml version="1.0" encoding="UTF-8"?>
<GetCategoriesResponse xmlns="urn:ebay:apis:eBLBaseComponents"><CategoryArray><Category><WantedParm1>true</WantedParm1><UnwantedParm1>true</UnwantedParm1><WantedParm2>20081</WantedParm2></Category></CategoryArray></GetCategoriesResponse>

I want to get some values of the Category Node, let's call them Wanted Parms 1 and 2. However I am getting an AttributeError probably because the code I wrote is not able to find the child node of the Category item.

AttributeError: 'NoneType' object has no attribute 'text'.

import xml.etree.ElementTree as ET
XML = #Above Code in String
tree = ET.ElementTree(ET.fromstring(XML))
root = tree.getroot()
for Category in root[0]:
    one = Category.find("WantedParm1").text
    two = Category.find("WantedParm2").text
    print(one, two)

Upvotes: 2

Views: 11143

Answers (1)

lioumens
lioumens

Reputation: 120

The XML elements are in the default namespace urn:ebay:apis:eBLBaseComponents So all tags get prepended with the full URI of the namespace.

Changing your find() parameter to include the URI should work.

import xml.etree.ElementTree as ET
XML = #Above Code in String
tree = ET.ElementTree(ET.fromstring(XML))
root = tree.getroot()
for Category in root[0]:
    one = Category.find("{urn:ebay:apis:eBLBaseComponents}WantedParm1").text
    two = Category.find("{urn:ebay:apis:eBLBaseComponents}WantedParm2").text
    print(one, two)

You can find more information on dealing with namespaces on the element tree docs here or this stack overflow post.

Upvotes: 9

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