Saturday, March 29, 2008

Use Beautiful Soup for Screen Scraping in Python

What to speed up web crawler / spider development? Try Beautiful Soup, if you use Python.

From their website:
Beautiful Soup is a Python HTML/XML parser designed for quick turnaround projects like screen-scraping. Three features make it powerful:

1. Beautiful Soup won't choke if you give it bad markup. It yields a parse tree that makes approximately as much sense as your original document. This is usually good enough to collect the data you need and run away.
2. Beautiful Soup provides a few simple methods and Pythonic idioms for navigating, searching, and modifying a parse tree: a toolkit for dissecting a document and extracting what you need. You don't have to create a custom parser for each application.
3. Beautiful Soup automatically converts incoming documents to Unicode and outgoing documents to UTF-8. You don't have to think about encodings, unless the document doesn't specify an encoding and Beautiful Soup can't auto detect one. Then you just have to specify the original encoding.


You can download it from here: http://www.crummy.com/software/BeautifulSoup/

Ruby programmers can enjoy Rubyful Soup

Enjoy High Speed Spider development with Beautiful Soup!

No comments: