Observing and Optimizing your Application with DTrace
by Angelo Rajadurai
David Wolber is the Chair of Computer Science at the University of San Francisco.
Noah Gift is the co-author of Python For Unix and Linux by O'Reilly. He is an author, speaker, consultant, and community leader, writing for publications such as IBM Developerworks, Red Hat Magazine, O'Reilly, and MacTech, and Manning.
Julie Steele is an editor at O'Reilly Media specializing in topics related to organizing, storing, and visualizing data.
Rob Orsini is the author of the Rails Cookbook (O'Reilly). He's also the founder and CEO of Tuple Shop, Inc., a web software consulting company specializing in Rails and Python development.
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Python News & CommentaryBy Nat Torkington
September 30, 2010
Learn Python The Hard Way -- Zed Shaw's book on programming Python, written as 52 exercises: Each exercise is one or two pages and follows the exact same format. You type each one in (no copy-paste!), make it run, do the extra credit, and then move on. If you get stuck, at least type it in and skip the...By Nat Torkington
September 20, 2010
The Tracks of Bizarre Robot Traders (The Atlantic) -- I love the idea that these mysterious effect-less trades might simply be there to slow down competitors' analytic systems because every millisecond matters. MS Paint Adventures -- a weird mashup of MS Paint and text adventure games. tablib -- a format-agnostic tabular dataset library for Python. (via joshua on delicious)...By Nat Torkington
August 4, 2010
FuXi -- Python-based, bi-directional logical reasoning system for the semantic web from the folks at the Open Knowledge Foundation. (via About Inferencing) Harness the Power of Being an Internet -- I learn by trying to build something, there's no other way I can discover the devils-in-the-details. Unfortunately that's an incredibly inefficient way to gain knowledge. I basically wander around...By Nat Torkington
June 2, 2010
Wikileaks Launched on Stolen Documents (Wired) -- Wired claims the first set of documents was obtained by running a Tor node that users connected to ("exit node") and saving the plaintext that was sent to the users, without their knowledge. Reminds me of the adage that nothing big in Silicon Valley starts without being some degree of evil first:...By Nat Torkington
May 10, 2010
zxing -- barcode library for iPhone, Android, Java, and more. Guido's Python -- how the compiler and interpreter see your Python programs. It wasn't until I had this level of knowledge of Perl that I really know what the hell I was doing. (via Hacker News) UK Election Data -- this was posted on the eve of the UK...Phlip Plumlee
May 4, 2010
This post shows how to write a web service using Test-Driven Development. Our source code example is the exemplary active_merchant contribution to Ruby on Rails. It reveals how developer tests can correctly attack remote web services. Programmers writing clients (or servers) for any kind of web service should use these techniques. My next post will extend this one into the Abstract Test Pattern.By Nat Torkington
April 20, 2010
Epigrams in Programming -- all from the remarkable Alan Perlis. By the time I learned that he was responsible for such gems as "Syntactic sugar causes cancer of the semicolon", "A language that doesn't affect the way you think about programming, is not worth knowing", and "Around computers it is difficult to find the correct unit of time to...By Doug Hellmann
March 21, 2010
In addition to its parsing capabilities, ElementTree also supports creating well-formed XML documents from Element objects constructed in your application.