My wife is a writer, which today means she uses a word processing program. It's a sophisticated, powerful program—OpenOffice.org Writer—but occasionally it won't do something that she wants it to do.

If the XML file is very large, check out the lxml website for how to use the target and feed interfaces--it's not as hard as you might think, and they work very efficiently.

Python supports both the standard DOM and SAX interfaces for parsing XML files. The SAX interface is an event-driven model in which the user sets up functions to be called as XML tags are processed.

Search Engine Journal XML sitemaps use the Yoast SEO plugin, which while it separates categories and blogs, all posts are grouped into post-sitemapX.xml sitemap files.