[web2py] Send form submission to python script

[adohertyd]

I'm new to both python and web2py. I'm trying to build a meta-search engine 
and I need the search box to send the user input to a python script which 
will pre-process the query and obtain the results from 3 different search 
engines. I've created a very basic HTML form as in the example in the book, 
but I need it to be sent to the python script (controller? default.py ??) 
instead of redirecting to a new HTML page. Any help would be really 
appreciated