xpt

XPT is a general-purpose XML Preprocessor with facilitates easy interfacing with Python. It's initial context was within DocBook 5 projects, but it is not intented to be restricted to that context.
A tool/library is being build for manpage extraction from source files. XPT bindings are used to insert manpages into processed DocBook 5 output.

Sources can be download from SourceForge, where the SVN repository holds the most recent code. Ubuntu pre-built packages are automatically build on Lauchpad (https://launchpad.net/xml-xpt) from the SourceForge SVN repository each time it gets updated.

Recent documentation (and showcase) can be found at http://xml-xpt.sourceforge.net/docu/. Note that this is from the development branch, so things are changing often there. It is best to get the latest commited version which can be found in the Code page.