XML package for Python The PyXML package is a collection of libraries to process XML with Python. It contains, among other things xmlproc: a validating XML parser. Expat: a fast non-validating parser. sgmlop: a C helper module that can speed-up xmllib.py and sgmllib.py by a factor of 5. PySAX: SAX 1 and SAX2 libraries with drivers for most of the parsers. 4DOM: A fully compliant DOM Level 2 implem