========== Background ========== This version of the BFG wiki tutorial presents a :mod:`repoze.bfg` application that uses technologies which will be familiar to someone with :term:`Zope` experience. It uses :term:`ZODB` as a persistence mechanism and :term:`traversal` to map URLs to code. It can also be followed by people without any prior Python web framework experience. To code along with this tutorial, the developer will need a UNIX machine with development tools (Mac OS X with XCode, any Linux or BSD variant, etc) *or* he will need a Windows system of any kind. This tutorial is known to work under :mod:`repoze.bfg` version 1.1a5. Have fun!