Python developers have another nice web application framework in Grok, an alternative that’s great for both beginners and veterans. That’s because it has the Zope Toolkit at its core, which is an advanced set of libraries that provides you with anything you might need to tackle projects of varying complexity. 

Grok is an open-source web framework based on Zope Toolkit technology. The project was started in 2006 by a number of Zope developers. Its core technologies are also used in other Zope-based projects.