pluginbuilder - Create standalone Mac OS X plugins with Python
pluginbuilder is a Python package which will allow you to make standalone plugins from Python scripts. This plugin can then be used by an Objective-C application (through NSBundle). pluginbuilder is a fork of py2app, but without the distutils based command or the ability to create application bundles.
For installation information, refer to the documentation in the "doc" folder (you need Sphinx to build it). The documentation is also available online at http://www.hardcoded.net/docs/pluginbuilder .