Just created a new project, https://gitorious.org/postgresql-full-text-search-engine to demonstrate the use of PostgreSQL as a full-text search engine in 200 lines or less.

• It uses Python 3 and Flask.
• I suppose I cheated because the jinja2 templates push the thing past 200 lines, but the core code is less, so I'm happy.
  
• There's lots more I could demonstrate in terms of PostgreSQL capabilities, but this is a decent starting point.

Oh, and the target audience is PyCon Canada 2013 -- I'm presenting this weekend in Toronto. Just in time demo creation! http://pycon.ca :)