python/pylons - multiple controllers for template
This is probably where you start moving chunks of code to library functions, to the /lib part of your Pylons project.  "Generated by a separate controller" is probably going too far - you merely need to not repeat yourself.  Try using library functions to make sure that the correct data is available, then use Mako's inheritance and namespace features.
I have a main page in Python/Pylons project, which have multiple different blocks (e.g. news/demo/(registration|private zone)/...).
My thought is that each block should be generated in a separate controller.
How can I call another controller method in a main page controller?