Introduction

XML and HTML are everywhere—from APIs to scraped websites. In this post, I’ll show you how to use lxml, a powerful and fast Python library for parsing and manipulating XML/HTML.

Installation 

pip install lxml

Parsing XML 

from lxml import etree

xml_data = '''OneTwo'''
root = etree.fromstring(xml_data)

for item in root.findall('item'):
    print(item.text)

Parsing HTML 

from lxml import html

html_content = 'Hello'
tree = html.fromstring(html_content)

heading = tree.xpath('//h1/text()')
print(heading[0])  # Output: Hello



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  XPath Basics
Explain how XPath is used to select nodes:

links = tree.xpath('//a/@href')



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  Error Handling & Best Practices

Use try/except
Validate structure before parsing

  
  
  Real-world Use Cases

Scraping
Working with config files
Parsing API responses

  
  
  Conclusion
lxml gives you superpowers for XML and HTML parsing. Whether you're a beginner or advanced dev, it’s worth mastering!