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: http://corporate-coach.com/write-my-business-plan/ Serializer Class 2.1
There is a bug fixing with in special chars lenght, thanks to Rainer Becker. The new mxp file is available on the sourceforge site.