How Can I Extract Node Attribute Values Using Python's ElementTree?

Extracting Node Attribute Values with Python

In an XML document, it's often necessary to retrieve instances of a particular node attribute. Consider the following XML structure:

<foo>
   <bar>
      <type foobar="1"/>
      <type foobar="2"/>
   </bar>
</foo>

The goal is to access the values of the attribute foobar, which in this example are "1" and "2".

Using Python's ElementTree library provides an efficient and straightforward solution:

import xml.etree.ElementTree as ET

# Parse the XML string or file into an Element instance
root = ET.parse('thefile.xml').getroot()

# Iterate through 'bar' tags and extract 'foobar' attribute values
for type_tag in root.findall('bar/type'):
    value = type_tag.get('foobar')
    print(value)

This code effectively accesses and prints the desired attribute values, resulting in the following output:

1
2

ElementTree offers a convenient and powerful API for parsing and manipulating XML data, enabling efficient retrieval of node attribute instances.

The above is the detailed content of How Can I Extract Node Attribute Values Using Python's ElementTree?. For more information, please follow other related articles on the PHP Chinese website!