Grok is an open-source Web framework based on Zope Toolkit technology. The project was started in 2006 by a number of Zope developers. Grok has since then seen regular releases. Its core technologies (Martian, grokcore.component) are also used in other Zope-based projects.
The primary motive behind Grok is to make the Zope Toolkit technology more accessible and easier to use for newcomers and, at the same time, speed up application development, in accordance with the agile programming paradigm. To achieve this, Grok uses convention-over-configuration instead of using an explicit XML based configuration language (ZCML) like Zope Toolkit and BlueBream do. Grok uses Python code for component configuration, and has many implicit defaults and conventions. Grok is similar in feel to other Python Web frameworks like TurboGears, Pylons and Django.