Books stores, sorts, and searches a "virtual card catalog" for a personal library. It makes it simple to enter new books, edit the information of older books, and sort the books by attributes such as title and author. Books also includes built-in searching for quick book information retrieval, and XML support for importing and exporting collection information in HTML and XML.
PyObjC is a bridge between Python and Objective-C that allows full featured Cocoa applications to be written in pure Python. It can also be used with other Objective-C class libraries, as well as C and C++ source. The installer package includes a number of Project Builder templates and Python syntax coloring files. It supports full introspection of Objective-C classes and direct invocation of Objective-C APIs from the interactive interpreter.