All the talks and training events were live-streamed, but were also recorded so you can watch them at your leisure. Watch them here:
Watch Tom V troll Guido van Rossum
Neat feature in Python 3.2 (backported to 2.6 and 2.7) that allows you to coordinate concurrent independant tasks in an executor that is powered by threads or separate processes. Think Fork-join.
A very humourous and interesting talk by our very own Nicholas Tollervey on genetic algorithms and music. Watch him fool the audience into picking computer generated music over great composers.
Peter Inglesby, a London Python Dojo regular, does a great in-depth talk about Python descriptors. If you want to know the details of getting and setting fields in classes and objects, then watch this talk! A lot of people were really impressed with his REPL-based presentation tool.
Armin describes the new separation of request and app contexts in Flask.
Links - https://github.com/groodt/europython12
Slides - http://groodt.github.com/europython12/