You should have Python 2.5, Twisted (8.1 or later), Nevow (0.9.32 or later) and Sqlite (3.6 or later) installed on your laptop for the tutorial. (Python 2.6 will probably work too, as the latest version of Nevow passes its test suite under 2.6, however, it has not been extensively tried in deployed applications). A package of files will be available over the Internet and on a USB stick for you to install at the outset of the tutorial.
