SLiP is a quick, alternative syntax for creating and editing XML data by hand and if you know Python, it should also be familiar.

Universal Feed Aggregator in Python

“Leo is portable. Leo.py is 100% pure Python and will run on any platform supporting Python and Tk/tcl, including Windows, Linux and MacOS X”

“Anobind is a Python/XML data binding, which is just a fancy way of saying it’s a very Pythonic XML API. You feed Anobind an XML document and it returns a data structure of corresponding Python objects”

How to install the libxml2 Python module