Ultimate Sitemap Parser

Ultimate Sitemap Parser (USP) is a performant and robust Python library for parsing and crawling sitemaps. It supports all major sitemap formats (XML, Google News, plain text, RSS/Atom), handles nested sitemaps, is error-tolerant, and efficiently processes large hierarchies using a lazy-loading generator for pages. The library is actively maintained, with frequent releases; the current version is 1.8.0.