A collection of Python tools for XML processing and object database management: they handle XML parsing, XPath expressions, XPointer, XSLT transformations, XLink, RDF and ODMG object databases. [Open Source, BSD-like]
A extension module that allows Python programs to interface with the Apache Software Foundation's Xalan XSLT transformation engine. [Open Source, BSD-like]
An XML parser written in Python. It is a nearly complete validating parser with SGML Open Catalogs and XCatalog 0.1 support, SAX drivers and additional utilities.
A DOM parser (built on top of SAX2) with a very simple and pythonesque tree API and conversion methods ("object-oriented XSL"), for example for creating HTML. [Open-Source, Python license]
Python bindings for Sablotron (a XSLT library) providing a simple API for in-memory XSLT transformations or file-to-file transformation. [Open Source, GPL]