Yesterday I received an email form Vsevolod ILyushchenko announcing me the alpha version of Flash remoting for python! http://simonf.com/amfpython/. There are also many examples here: http://simonf.com/amfpython/code.html
Second update: Serializer Class 2.1
There is a bug fixing with in special chars lenght, thanks to http://www.techneimmagine.com/essay-about-make-friends/ Rainer Becker. The new mxp file is available on the sourceforge site.