TechExperiment

Advanced Python (more about the inner workings of python and not programming tactics), Google TechTalk by Thomas Wouters

This talk aims to enlighten programmers new to Python about these fundamentals, the language mechanics that flow from them and how to effectively put those to use. Among the topics covered are duck-typing, interfaces, descriptors, decorators, metaclasses, reference-counting and the cyclic-garbage collector, the divide between C/C++ data and Python objects and the CPython implementation in general.

As an added bonus, I found this funny python introduction video. It might just make you LOL.