This is a presentation that I put together for the first annual PyOhio conference (
http://wiki.python.org/moin/PyOhio/). The conference was great, and yes, it took me two months to get around to reformatting my "slides" -- adding some of my presentation comments, debugging the code samples, revising the grammar, and clarifying or expanding-upon the stuff that I didn't think was clear. But now that they're out there, I hope you find them useful.