lightning.txt +- Demo: Schedule the lightning talks Read class list from file into Python list Shuffle to randomize order Week numbers * n, as many as needed for all students Zip to associate week numbers with names Sort to collect together all talks for same week Open file, print with for name, week in ... print ... (preview next course: reading/writing web site not much harder than file) Save statements in a module so we can repeat as needed import the module into session, demo dir and help, note docstring docstrings can occur in many python constructs. Not just comments, but better We've just demonstrated a crude but often effective programming method!