Linkblog - 20.11.2009 - 17.12.2009

mojombo's bert - and here is a library that implements BERT in Ruby.

ProjectPlan - unladen-swallow - Plans for optimizing Python - interesting status about Unladen Swallow, the Python version that builds on LLVM as JIT.

Python Package Index : python-daemon 1.5.2 - because I always need it from time to time and then always have to do it manually: this module helps to turn a Python script into a proper Unix daemon, with correct forking and PID file handling.

samuel's python-bert - and since I'm at it, also BERT in Python.

The Render Engine - Javascript Game Engine - since JavaScript now delivers serious performance with modern browsers like Safari 4 and Chrome (and betas of Firefox), you can do crazy things like writing rendering engines for games in JavaScript.

trotter's bert-clj - and now another BERT implementation in Clojure

Making light - Wouter Brandsma received a Ricoh GXR with the 50mm macro module as a test unit and is currently trying it out.

Microsoft Acknowledges Theft of Code from Plurk - first Microsoft is caught stealing GPL code (and now releases the questionable tool itself under GPL, which will surely please them) and then Microsoft is caught stealing code from Plurk (and first has to shut down the service). Quite funny, wasn't Microsoft the company that always got so worked up about others using their code illegally? Hmm ...

Widefinder 2 with Clojure - Tim Bray's Widefinder2 project is slowly delivering very interesting results, here an article about how to optimize Clojure so that the performance beats the best Scala and Java solutions so far (where the Java version can of course catch up trivially, as most performance-relevant things in this version rely on Java libraries). A nice example of how you can bring low-level optimization into Clojure for the things that are really important for performance, but still keep the good high-level mechanisms of Clojure for the rest of the code.

Bug #387308 in Ubuntu One Client: “[Wishlist] Proxy Support” - Ubuntu One has been included by default with Ubuntu since the karmic koala. And does not use the proxy settings. Tinkering!

Code tutorial: make your application sync with Ubuntu One - Ubuntu One (the file and synchronization service from Canonical for Ubuntu) uses CouchDB internally (and the synchronization is based on CouchDB replication!) and this tutorial shows how to modify applications so that they work with CouchDB. Examples are in Python and also use some aspects of DBUS (Gnome), so it is generally a quite interesting tutorial for desktop programming under Linux. I think it is a good idea for Ubuntu One to rely on CouchDB replication - the mess of MobileMe in synchronization should be much better to handle.

Damn Cool Algorithms: Log structured storage - compact article about storing data on disk. In this case, oriented towards the techniques of log-based file systems, which are also used in databases.

Intland now on Mercurial - Part 3: Giving new momentum to the Eclipse Mercurial Plugin | Intland Blog - I might take a look at that, the official Mercurial plugin for Eclipse is not very pleasant. On the other hand, some of the language plugins for NetBeans (especially the Python plugin I like) are much better than for Eclipse.

Maven - Guide to using proxies - because I needed it just now, as Leiningen (a build tool for Clojure) relies on Maven. Unfortunately, this has to be changed in an XML file, which makes it not so easy to automate. I need to come up with something useful for Linux that automatically switches various configs when settings change.

Clojars Tutorial - GitHub - Clojars will be something like CPAN for Clojure (and it will become more and more) and is very simple and elegant to use with Clojure and the support of Leiningen.

EMBODY by Herman Miller - Chairholder News - the Aeron chairs are already super expensive, but super good. The Embody is even better. Does anyone have 1600 Euro to spare for me?

Radio UserLand: Auf Wiedersehen, und danke für den Fisch - or something like that. Radio Userland is being shut down. It's a bit sad - my blog originally started with Radio Userland, then I hosted it myself with the Python Community Server (and also gave other Radio Userland users a virtual home there), then I wrote my own Radio clone, the Python Desktop Server. But now all of that is gradually disappearing from the net. Even Phillip Pearson has taken his PyCS stuff offline bit by bit.

Yeti programming language - I should take a look at that, an ML for the JVM. Scala offers many of these features as well and certainly has much more momentum at the moment. But I've always found ML quite interesting because the language is quite compact - and with JVM integration, you get all the Java libraries to play with so to speak for free. Although Yeti is really only an ML-style language, not really ML (significant differences in syntax).

Either Mark Zuckerberg got a whole lot less private or Facebook’s CEO doesn’t understand the company’s new privacy settings. - well, that's a surprise. (in my case, things are open because my Facebook profile serves only as a super aggregator, collecting almost exclusively public content, so stricter security settings don't make much sense there)

JavaScript web workers: use visitors to your website to do background data processing for you. : programming - crazy idea: set up JavaScript workers for distributed computing on websites. Every visitor participates in the calculation of some data. Of course, unless they use something like NoScript or PithHelmet and filter out the stuff.

The Tumblr Backup app is ready for its first beta... - for those who use Tumblr and have a Mac, there's now a backup tool. I might check it out for my small image Tumblr.

Fingerprint Readers on Linux Laptops and Notebooks - because my company notebook has one. And surprisingly: it works! The new Fujitsu S-Series boxes are very Linux-friendly.

Climate Conference: No Extra 0.5 Degrees for Tuvalu - the arrogance of the economic states towards the downfall (literally - they are drowning) of Tuvalu is revolting.

Government smartphones run on Windows Mobile - because, as is well known, it is so super secure and there are no backdoors in the system. After all, the entire system can be easily subjected to an audit. Ooops. Oh, and particularly cute is the decision for HTC Windows Mobile smartphones, after HTC itself announced that in the future, the new devices will primarily be released with Droid (which could realistically be subjected to an audit). Then HTC can sell its remaining inventory to the government at a high price.

Zarengold Bahnreisen - since I was looking for it again, I'll just blog about it now. Someday, when I have the money for it, and I'm not doing other crazy things like spontaneous trips to Russia or taking Russian language courses, I'll do the tour. On that train.

taskpaper-web - and another web version of TaskPaper, this one quite old and according to the project dormant, but might serve me as a starting point (or TaskPaper+).

taskpaperplus - I am a TaskPaper fan, but I don't have it on Linux or on the iPhone. So I searched and found this: a project that makes TaskPaper files editable via PHP over the web. It looks quite good, I need to play with it a bit.

TodoPaper - and for those who need TaskPaper on Windows, help is provided here. Another option would be to simply use Dropbox to transfer the files to my Windows machine at work (or run it under Wine on Linux).

We call it OPA - sounds very interesting based on the description, a development environment for web services and web applications based on OCaml with a focus on all the necessary basics such as XSS protection, SQL injection protection and similar.

Cadmium - Introduction - matching Cafesterol here is the OCAML Runtime in pure Java. With this, you can execute OCAML bytecode or use it as a runtime for programs compiled with Cafesterol.

Cafesterol - cool, an extension of the OCAML compiler that generates Java bytecode. With this, you can use OCaml not only to serve your own virtual machine and of course generate native code, but also go directly into the Java world.

PLT Scheme Blog: Futures: Fine Grained Parallelism in PLT - the best Scheme on the market now also gets microthreads. Still quite fresh at the moment, but this will certainly make it into the standard range in the long run.

Short Chat Server in Clojure - interesting small example of Clojure code. Shows well the use of asynchronous processes and network access. And with 75 lines nicely clear.

clutchski's fileutils - makes Python even better for shell scripts by providing various basic commands as Python functions. Nice.

Escher in Hagen - ok, besides the Monet exhibition in Wuppertal and Toulouse-Lautrec in Langenfeld, the third art exhibition I should add to my list.

Why Object-Oriented Languages Need Tail Calls – projectfortress Community - good post about tail-call-optimization. By Guy L. Steele - he should know what he's talking about, he was heavily involved in Scheme (the first language to explicitly mention tail recursion in its language description). Other languages he was directly involved with were Common Lisp, Java, and now Fortress. I hope this post will be read and understood by Guido van Rossum so that Python finally learns tail call optimization (yes, I know all the counterarguments and sorry, I don't find them particularly convincing).

Google Maps Distance Calculator - no idea why Google Maps can't do this out of the box, but hey, the service is really practical if you want to know how far Ekaterinburg is from Münster, for example (it's just under 3400 kilometers, that's almost nothing!)

MCLIDE - Lisp IDE for Macintosh - an interesting project that reimplements the tools from Macintosh Common Lisp as standalone tools and then connects them to various Lisp implementations via Slime/Swank. Definitely more pleasant for Mac users than using Emacs, for example.

Sonar - maybe I should check this out for the company to see if it can analyze our Python codebase. (It doesn't work out of the box, so you would need to find or write a plugin for it)

Building Clojure Projects with Leiningen - simply explains Leiningen. I like it very much, especially because it uses the entire Java world, but feels significantly simpler. No XML orgies and clean standalone-JAR generation.

Amp | Version Control Revolution - Mercurial in Ruby, with a strong focus on extensibility via a Ruby DSL. If I think about how often I use a VCS as a basis for all sorts of things (e.g. automatic deployment of blog postings in one of my blogs), this could actually be pretty cool.

formsets and inline forms in Django - a similar problem came up at the company recently, so here's a blog post that might be the solution.

Implementing a DHT in Go, part 1 - for those who want to see more Go code, here is a rather interesting example: a distributed hash table (i.e. key/value pairs distributed across many nodes). The first part deals with the buckets and the routing table, the next part will then add the network protocol.

Understanding Haskell Monads - of all the tutorials I have seen on this topic so far, the most understandable for me.

AvahiAndUnicastDotLocal – Avahi - because I've been looking for this forever. How to connect ZeroConf (Bonjour) and e.g. a Microsoft-Domain-thing under .local.

gopenvpn - because network-manager-openvpn under Ubuntu Karmic Koala is a complete mess. gopenvpn is like Tunnelblick on the Mac - and it just works.

uWSGI - could be interesting for the Django projects at the company, sounds quite good from the description.

Clojars - the beginning of a repository for Clojure libraries à la Ruby gems or PyPi or CPAN.

Incanter: Statistical Computing and Graphics Environment for Clojure - something like R (statistics package) for Clojure. Could help me to make some practical doodles with Clojure.

technomancy's leiningen - interesting small build system for Clojure that simply writes its metadata in Clojure and thus comes across much more compact than monsters like Ant or Maven. If you use something like Netbeans, of course the build is already regulated in the IDE, but with this system you can also build small standalone projects without a large Java IDE. And it integrates well with Clojars.