Try It Yourself - SyntaxStudy Editor

HTML / CSS / JS

# Python: DOM parsing with xml.etree.ElementTree

import xml.etree.ElementTree as ET

# Parse from a string
xml_string = """<?xml version="1.0" encoding="UTF-8"?>
<library>
    <book id="b001" category="fiction">
        <title>The Great Gatsby</title>
        <author>F. Scott Fitzgerald</author>
        <year>1925</year>
        <price>12.99</price>
    </book>
    <book id="b002" category="non-fiction">
        <title>Clean Code</title>
        <author>Robert C. Martin</author>
        <year>2008</year>
        <price>35.00</price>
    </book>
</library>"""

root = ET.fromstring(xml_string)

# Iterate over all book elements
for book in root.findall('book'):
    book_id  = book.get('id')
    category = book.get('category')
    title    = book.findtext('title')
    author   = book.findtext('author')
    year     = book.findtext('year')
    price    = book.findtext('price')
    print(f'[{book_id}] {title} by {author} ({year}) — ${price} [{category}]')

# Modify: add a new book and serialize back to XML
new_book = ET.SubElement(root, 'book')
new_book.set('id', 'b003')
new_book.set('category', 'reference')
ET.SubElement(new_book, 'title').text  = 'XML in a Nutshell'
ET.SubElement(new_book, 'author').text = 'Elliotte Rusty Harold'
ET.SubElement(new_book, 'year').text   = '2004'

# Serialize (ET.indent available in Python 3.9+)
ET.indent(root, space='    ')
output = ET.tostring(root, encoding='unicode', xml_declaration=False)
print(output[:200])