Template Data Interface (TDI, /ʹtedɪ/) is a markup templating system written in Python with (optional but recommended) speedup code written in C. Unlike most templating systems, TDI does not invent its own language to provide functionality. Instead, you simply mark the nodes you want to manipulate within the template document. The template is parsed, and the marked nodes are presented to your Python code, where they can be modified in any way you want.
WebMCP is a Web application framework. Instead of using the classical Model-View-Controller (MVC) concept, WebMCP makes use of a so-called Model-View-Action concept. The database is accessed through the Model layer, which provides an Object-Relational-Mapping (ORM). HTTP-GET requests are handled by Views, which process the request data, query the database, and render the result. HTTP POST requests are handled by Actions, which can write to the database and redirect to a View, dependent on success or failure.