With Sphinx and Ablog you can generate static files for your weblog from reStructuredText. This post explains the basics of the installation.
Let me explain that Per Page Internationalization for ABlog proposal a bit more.
ABlog is Ahmet Bakan’s fantastic Sphinx extension for creating blogs. At the moment as of version 0.3 it lacks support for switching languages on a per post or per page basis. ABlog is OpenSource software and available from Github.This post offers a working solution.