I'm back from PyCon in Silicon Valley. (If you don't know what PyCon is, it's 2000+ nerds talking about the Python programming language for a few days.) Here are some highlights I remember, in case you're looking for recommendations of videos to watch. (Of course, it's fantastic that they record everything and make it all available for free, here )
The introduction featuring dancing robots was impressive. I remember that just a few years ago it was hard to teach robots to walk, and now you (or your rich friend) can buy a robot that can be programmed to dance (among many other things) for a few thousand bucks. They ended up giving away one of the robots at the end, a pretty nice prize.
Paul Graham's keynote about ten really-hard-but-not-quite-impossible startup ideas was awesome, probably the best thing I saw at the conference.
Stormy Peters' keynote about freedom and privacy and stuff was okay; I agreed with her about pretty much everything, but I don't know if someone who didn't would actually have been swayed.
Guido van Rossum's keynote about "trolls" who whine about Python didn't do much for me.
Katie Cunningham's intro to hosting a web site in the cloud and using Fabric to maintain it was very good. I've never used Fabric but I plan to start.
Raymond Hettinger's talk about subclassing was predictably excellent. It was a very balanced talk about when it makes sense to subclass (because it lets you write less code) and when it doesn't, not the typical object oriented programming 101 nonsense where they explain how to subclass but not why it's not always the right thing to do. But since I pretty much already agreed with everything he said, I don't think I got anything out of it.
Larry Hastings' low-level stepping through Python was fun for a very select audience. Most people probably don't need that level of detail.
Paul McMillan's talk about security was very good, and useful for any web programmer who doesn't know this stuff.
Chris McDonough's talk about PDB (the Python debugger) was pretty good. I picked up a few tricks I didn't know, even though I've used PDB a bunch of times.
Moshe Zadka's talk about writing resilient programs that recover from crashes was great. He mentioned several techniques I hadn't even thought of, let alone used.
Geremy Condra's talk about security testing was good, but not quite as mind-blowing for me as his previous talk about timing attacks.
Glyph Lefkowitz's talk about low-level networking (and not Twisted) was great, though I already knew pretty much everything he covered so I probably should have been elsewhere.
The PyPy survey talk by Maciej Fijalkowski, Alex Gaynor, and Armin Rigo was actually more like two talks. Maciej and Alex gave kind of a general introduction to PyPy, then Armin talked about software transactional memory, making an analogy to garbage collection. I already follow PyPy so I didn't get too much out of this talk, but it's worth watching if you don't.
Benjamin Peterson's talk about the PyPy just-in-time compiler was more in-depth and thus more interesting to me. I'd heard most of the material before but it's complicated enough that I needed to hear it again.
Michael Bayer's talk about SQLAlchemy was okay. It was more advocacy of the right way to do a flexible database toolkit (make it flexible) than practical advice on how to use SQLAlchemy.
Both Geographic Information System talks I attended were excellent. Jason Scheirer talked about GIS and maps at a more theoretical level, covering the basic terminology and map projections. Zain Memon's talk was more practical, basically how to use a bunch of libraries to quickly create a map-oriented web site. I need to do some GIS stuff at work, so these two talks definitely justified the money my employer spent to send me to the conference.
Jacqueline Kazil and Dana Bauer's talk about mining public data released by local governments was really good. I wasn't at all familiar with most of the tools they used, so I'll need to watch the video and take notes.
Chris Lambacher's talk about cross-compiling Python and C extensions for embedded systems covered something else I need to do at work, so I was really hoping it would solve all my problems. Unfortunately, his slides showed a big mess of low-level hacks around tools that aren't really designed for cross-compiling, rather than the magic bullet I wanted (but didn't expect to find.) It's a hard problem, but maybe the emergence of ARM devices will make cross-compiling more mainstream and the tools will improve.
Erik Rose's talk about parsing MediaWiki files (which are too complicated to parse with simple regular expressions) gave us an entertaining survey of Python parsing libraries. He covered a handful in some detail, and has a survey of lots and lots more on his web site.
Ryan Kelly's talk about frozen standalone programs didn't really go much into running programs like py2exe, but rather dealt with secondary issues like auto-updaters, binary compatibility with old operating system versions, and code signing. It was interesting, but didn't solve my short-term need to make PyInstaller and PyGTK cooperate on 64-bit MacOS.
Brandon Rhodes' talk about linkers and virtual memory was really excellent, but unfortunately covered things I'd already learned, so I should have been somewhere else.
The lightning talks were a mixed bag. I enjoyed many of them, but certainly don't remember enough to review them all. I'd kind of like to attend a conference that was nothing but lightning talks, five minutes each on hundreds of subjects.
The poster session was good. There were about 30 posters, with their authors handy to talk, and about half of them covered subjects that interested me at least a bit.
The Expo Hall showed that the tech economy is doing fine, even if the larger economy is still kind of bleak. There were dozens of sponsors with booths, and at least half of them were desperately trying to hire people. If you're an out-of-work Python programmer, definitely go to PyCon.
Finally, I spent a day and a half at the sprints, hacking on PyPy. I fixed 3 or 4 minor bugs and learned a bit in the process. I would love to have spent another couple of days at the sprint, but work and family called. (I had actually planned to spend a couple of days playing tourist rather than coding, but changed my mind. So I'll have to go back and look at redwoods some other time.)
In some ways, this was the best PyCon I'd attended since the very first one in DC. The WiFi worked really well for me for a change, even though I only brought a cheap netbook. I managed to avoid attending any really bad talks. I got to write some useful code and talk to a lot of people and even play in a free poker tournament. And I caught not one but two door prize frisbees. (Unfortunately, I only won a couple of books, not a robot or an iPad, but maybe next year.)