OK, I found the answer to my questions : All is done by Main module :
serve_controller(request, response, session) source code this function is used to generate a dynamic page. It first runs all models, then runs the function in the controller, and then tries to render the output using a view/template. this function must run from the [application] folder. A typical example would be the call to the url /[application]/[controller]/[function] that would result in a call to [function]() in applications/[application]/[controller].py rendered by applications/[application]/views/[controller]/[function].html --
