Django-Balancer
A set of tools for using Django's multi-db feature to balance database requests between multiple replicated databases. It currently provides some basic routers for using weighted random selection or round robin selection with a pool of databases, following a master/slave layout where the slaves are read-only copies of master, and pinning reads to master for a user after that user completes a write.
Since everything is implemented using base classes and mixins, this also serves as a construction kit for creating your own more complex routers. Feel free to contribute routers, and I'll be happy to incorporate them into the project.
Install
Install django-balancer via pip
$ pip install django-balancer
or, with easy_install
$ easy_install django-balancer
But, hey... that's up to you.