--- /dev/null
+:mod:`bundlebuilder` --- Assemble MacOS X (application) bundles
+===============================================================
+
+.. module:: bundlebuilder
+ :synopsis: Tools to assemble MacOS X (application) bundles.
+ :platform: Mac
+.. moduleauthor:: Just van Rossum
+
+.. index::
+ pair: creating; application bundles
+
+This module contains two classes to build so called "bundles" for MacOS X.
+:class:`BundleBuilder` is a general tool, :class:`AppBuilder` is a subclass
+specialized in building application bundles.
+
+These Builder objects are instantiated with a bunch of keyword arguments, and
+have a :meth:`build` method that will do all the work.
+
+The module also contains a main program that can be used in two ways::
+
+ % python bundlebuilder.py [options] build
+ % python buildapp.py [options] build
+
+where :file:`buildapp.py` is a user-supplied setup.py-like script following this
+model::
+
+ from bundlebuilder import buildapp
+ buildapp(<lots-of-keyword-args>)