What is PEAK?
PEAK is the "Python Enterprise Application Kit". If you develop "enterprise" applications with Python, or indeed almost any sort of application with Python, PEAK may help you do it faster, easier, on a larger scale, and with fewer defects than ever before. The key is component-based development, on a reliable infrastructure.
PEAK is an application kit, and applications are made from components. PEAK provides you with a component architecture, component infrastructure, and various general-purpose components and component frameworks for building applications. As with J2EE, the idea is to let you stop reinventing architectural and infrastructure wheels, so you can put more time into your actual application.
But PEAK is different from J2EE: it's a single, free implementation of simpler API's based on an easier-to-use language that can nonetheless scale with better performance than J2EE.
PEAK is the successor to TransWarp, an experimental toolkit for software automation in Python. PEAK takes the best of the techniques and ideas from TransWarp, and repackages them as an enterprise software toolkit. Where TransWarp emphasized techniques like generative programming and aspect-oriented programming, PEAK emphasizes enterprise applications, and hides the computer science stuff "under the hood", so you can focus on building your application.
PEAK tools can be used with other "Python Enterprise" frameworks such as Zope and the Python DBAPI to construct web-based, GUI, or command-line applications, interacting with any kind of storage, or with no storage at all. Whatever the application type, PEAK can help you put it together.