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DevelopmentCherryPy reaches the 3.0.0 milestone CherryPy is a Python-based cross-platform object-oriented web development framework:
CherryPy allows developers to build web applications in much the same way they would build any other object-oriented Python program. This usually results in smaller source code developed in less time.
CherryPy is now more than three years old and it is has proven very fast and stable. It is being used in production by many sites, from the simplest ones to the most demanding ones.
The basic operation of CherryPy is explained:
Your CherryPy powered web applications are in fact stand-alone Python applications embedding their own multi-threaded web server. You can deploy them anywhere you can run Python applications. Apache is not required, but it's possible to run a CherryPy application behind it (or IIS).
Passing interactive data to CherryPy is simple:
You write request handler classes that you tie together in a tree of objects, starting with a root object. CherryPy maps incoming request URIs to this object tree. The URI '/' represents the 'root' object, '/users/' the 'root.users' object, and so on. Requests are handled by methods inside these request handler classes.
Examples of a simple Hello World program and the passing of GET/POST variables to methods show the simplicity that CherryPy development offers. CherryPy version 3.0.0 brings the following changes:
System Applications Database Software Firebird 1.5.4 announced Version 1.5.4 of the Firebird DBMS has been announced. "This sub-release introduces a number of bug fixes backported from the Firebird 2.0.x branches."
PostgreSQL Weekly News The December 25, 2006 edition of the PostgreSQL Weekly News is online with the latest PostgreSQL DBMS articles and resources.
PostgreSQL Weekly News The January 1, 2007 edition of the PostgreSQL Weekly News is online with the latest PostgreSQL DBMS articles and resources.
Embedded Systems BusyBox 1.3.1 released Stable version 1.3.1 of BusyBox, a collection of command line utilities for embedded systems, is out. "Closing 2006 with new release. It includes only trivial fixes accumulated since 1.3.0"
Libraries PyTables 1.4 released Version 1.4 of PyTables has been announced. "PyTables is a library for managing hierarchical datasets and designed to efficiently cope with extremely large amounts of data with support for full 64-bit file addressing. It is based on the HDF5 library for doing the I/O and leverages the numarray/NumPy/Numeric packages so as to deliver the data to the end user in convenient in-memory containers. This is a new major release of PyTables, and probably the last major one of the 1.x series (i.e. with numarray at the core). On it, we have implemented better code to deal with table buffers, enhanced the capability for reading native HDF5 files, enhanced support for 64-bit platforms (but not with Python 2.5: see ``Special Warning`` section below), better support for AIX, optional automatic parent creation and the traditional amount of bug fixes."
Mail Software poMMo - The post modern Mass Mailer Brice Burgess has sent us an announcement for his poMMo mailing list manager project. "poMMo is versatile mass mailing software. It can be used to add a mailing list to your Web site or to organize stand alone mailings. Unique Features such as the ability to mail subsets of your subscribers set it apart from alternatives. poMMo is written in PHP and freely provided under the GPL."
Postfix 2.4 Snapshot 20061229 released Snapshot 20061229 of the Postfix mail transfer agent is out. See the CHANGELOG file for details.
Desktop Applications Audio Applications das_watchdog V0.2.5 and jack_capture 0.9.3 announced New versions of the audio applications das_watchdog and jack_capture have been announced. "Whenever a program locks up the machine, das_watchdog will temporarily sets all realtime process to non-realtime for 8 seconds. You will get an xmessage window up on the screen whenever that happens. ... jack_capture is a program for recording soundfiles with jack."
AWN Issue 4 released (KDE.News) KDE.News has announced issue #4 of the Amarok Weekly Newsletter: "Late but worthy - thats how one can call this issue of AWN. It talks about new or updated Amarok features, and continues to provide tips and links to interesting scripts. As a bonus, kind of New Year gift, we provide you an experimental RSS feed, for your pleasure. Enjoy!"
Desktop Environments GNOME 2.17.4 released Version 2.17.4 of the GNOME desktop environment is available. "This is our second development release on our road towards GNOME 2.18.0, which will be released in March 2007. New features are coming in at a nice rate, and that's great. A lot of bug fixes too. And some crashers are appearing here and there: that's the fun of unstable releases!"
GARNOME 2.17.4 announced Version 2.17.4 of GARNOME, the bleeding-edge GNOME distribution, is out. "This release includes all of GNOME 2.17.4 plus a whole bunch of updates that were released after the GNOME freeze date. This is the fourth release in the unstable cycle, with more features, more fixes and yet more madness added. It is for anyone who wants to get his hands dirty on the development branch, or who'd like to get a peek at future features."
GNOME migration to Subversion finished The migration of the GNOME desktop to the Subversion version control system has been completed. "For those that haven't noticed, the subversion migration is now complete. In the end, it took about 49 hours. Apologies for the downtime involved."
GNOME Software Announcements The following new GNOME software has been announced this week and last:
KDE Commit-Digest (KDE.News) The December 24, 2006 edition of the KDE Commit-Digest has been announced. The content summary says: "A new game, KSquares, is imported into KDE SVN, with KLines starting on the (now familiar) path towards scalable graphics and general improvement. Usability and other improvements in Okular. Support for multiple "identies", alongside a festive basket of other enhancements in Mailody. Search support and plugin handling improvements in KGet. In Amarok, the "yauap" engine (a redeveloped GStreamer interface, using D-Bus interaction) progresses, with support for audio CD's. Improved OpenFormula specification compliance in KSpread. A much-enhanced implementation of "run-around text" comes to KWord. A work-in-progress python parser for KDevelop is imported into KDE SVN. Work begins on the Oxygen-themed widget style and window decoration for KDE 4."
KDE Commit-Digest (KDE.News) The December 31, 2006 edition of the KDE Commit-Digest has been announced. The content summary says: "The KDE Commit-Digest 2006 retrospective. blinKen and KNetWalk become the latest applications to move to scalable graphics. KSquares further develops, with an AI player implemented. More maps and a more sophisticated divisions and capitals implementation in KGeography. Support for password-protected RAR archives in the kio_rar interface. Work to support drag-and-drop of transfers in KGet. Import of "koregressions" test suite for KOffice. Longstanding KWeather and KHTML bugs fixed. Major refactoring in the "sonnet" natural language checker. Version 1.0 of Eigen, the library for vector and matrix math, is released."
KDE Software Announcements The following new KDE software has been announced this week:
The Road to KDE 4: SVG Rendering in Applications (KDE.News) KDE.News presents a short overview of some of features going into KDE 4. "Since KDE 4 development is in full swing with plans for a KDE 4.0 release sometime later this year, I thought I'd put together a weekly piece entitled The Road to KDE 4. The idea is to have a short overview of one or two of the features that show progress in KDE 4. For my first issue, the goal is to show off some of the great SVG work that has taken place so far."
Xorg Software Announcements The following new Xorg software has been announced this week and last:
Electronics KJWaves 1.1.0 released Version 1.1.0 of KJWaves, a Java program for viewing RAW SPICE electronic simulation files, has been announced. "New version allows adding of traces to previous graphs and improves on ability to add current through a component analysis."
Games Battle for Wesnoth 1.2 released Version 1.2 of the game Battle for Wesnoth has been announced. "The single player mode has a new tutorial, and 3 new campaigns: Two Brothers, The South Guard, and Under the Burning Suns. The first one was intentionally designed to be easy for beginning players. The last one is set in an environment quite different from that of the typical Wesnoth campaign, and includes a few changes to game rules. The existing campaigns include new scenarios, dialogue, items, and optional bonus victory objectives. Replay of saved games has been improved considerably, allowing one to show single turns at a time, navigate through the replay, and toggle fog-of-war at will." Many more changes have been included.
Imaging Applications PDFCube 0.0.2 released Version 0.0.2 of PDFCube is out. "PDF Cube is an OpenGL API-based PDF viewer that adds a compiz/Keynote-like spinning cube tra[n]sition effect to your PDF presentations (including Latex, Beamer and Prosper). You can also zoom on 5 predefined areas of any presentation page with a smooth zooming effect."
Interoperability Wine 0.9.28 released Version 0.9.28 of Wine has been announced. Changes include: OpenGL in child windows should work again, Better mouse support in games, Beginnings of new state management in Direct3D, Improved audio and font support on Mac OS and Lots of bug fixes.
Medical Applications Synapse EMR (LinuxMedNews) LinuxMedNews reports on the Linux port of Synapse EMR, an electronic medical record system. "Synapse EMR port to Linux has now gone beta. Download from http://www.compkarori.com/emr/linux/. Almost all of the non-Windows specific functionality is now available for the Linux client."
Music Applications amSynth 1.2.0 released Version 1.2.0 of amSynth, a virtual music synthesizer, is out. Changes include better graphics, better MIDI all-off handling, a new about dialog, better installation and bug fixes.
BEAST/BSE v0.7.1 announced Version 0.7.1 of BEAST/BSE and BSE-ALSA have been announced, it features a security fix and other improvements. "This is a development version of BEAST/BSE, the BEdevilled Audio SysTem and the Bedevilled Sound Engine. BEAST is a powerful music composition and modular synthesis application released as free software under the GNU GPL and GNU LGPL, that runs under unix. BSE-ALSA is an ALSA driver for BSE."
rtsynth 1.9.5 alsa+jack announced Version 1.9.5 of RTSynth, a midi event triggered real time synthesizer is out with support for dynamically loaded jack drivers, a new --polyvoice command line option and bug fixes.
Office Applications Bruce The Presentation Tool, release 1.2 Release 1.2 of Bruce The Presentation Tool has been announced. "Bruce the Presentation Tool is for Python programmers who are tired of fighting with presentation tools. In its basic form it allows text, code or image pages and even interactive Python sessions. It uses PyGame and is easily extensible to add new page types."
Office Suites OpenOffice.org Newsletter The December, 2006 edition of the OpenOffice.org Newsletter is out with the latest OO.o office suite articles and events.
Science First public release of ANUGA hydrodynamic modeling The ANUGA hydrodynamic modeling system has been launched. "ANUGA is a software implementation of a hydrodynamic model which is specifically designed to model wetting and drying processes. ANUGA implements a Finite-Volumes technique for solving the Shallow Water Wave Equations. ANUGA is a joint development project between Geoscience Australia (GA) and the Australian National University (ANU) and is being used to simulate the impact from natural disasters such as tsunami and storm-surge on coastal communities. ANUGA is also suitable for detailed dam-break simulations."
Web Browsers Mozilla Firefox and Thunderbird 1.5.0.9 Released (MozillaZine) Versions 1.5.0.9 of the Mozilla Firefox web browser and the Mozilla Thunderbird email client have been announced. "Security and Stability updates for Mozilla products based on the Gecko 1.8.0 branch have been released. Firefox 1.5.0.x will be maintained with security and stability updates until April 24, 2007. All users are strongly encouraged to upgrade to Firefox 2."
Mozilla Firefox 2.0.0.1 released (MozillaZine) Version 2.0.0.1 of the Mozilla Firefox web browser has been announced. "Mozilla Firefox 2.0.0.1, a security and stability update for Firefox 2, has been released. This release addresses several critical security issues. All users are encouraged to upgrade to this release."
Languages and Tools Caml Caml Weekly News The December 26, 2006 edition of the Caml Weekly News is out with new Caml language articles.
Caml Weekly News The January 2, 2007 edition of the Caml Weekly News is out with new Caml language articles.
FORTRAN Gfortran year end status report A year end status report for Gfortran, the GNU FORTRAN compiler project, has been published. "Gfortran has achieved many milestones this year and hopefully the contributors can continue to move forward with bug fixes, conformance to Fortran 95 standard, and the implementation of Fortran 2003 features."
Haskell Haskell Weekly News The January 2, 2007 edition of the Haskell Weekly News is online. This week brings a new release of vty and HsColour, and some interesting discussion over the holiday break.
Java Review/Preview: 2006 and 2007 in Java (O'ReillyNet) Chris Adamson looks at recent and upcoming Java developments on O'Reilly. "2006 will be remembered as the year that Sun open-sourced Java under the GPL, that EJB 3.0 finally shipped, and that Google surprised everyone with its Google Web Toolkit. But how will history record the results of these events? For the 2006 year-ender, ONJava editor Chris Adamson looks at the year's events through the lens of how they may play out in 2007."
JUnit Reloaded (java.net) Ralf Stuckert discusses the latest changes to JUnit on java.net. "Let's face it, JUnit is the most widely used (unit-) testing tool in the Java world. There are other powerful test frameworks out there, such as TestNG (which is very comprehensive), but they've never enjoyed the broad acceptance JUnit has. With version 4, Kent Beck and Erich Gamma introduced the first significant API changes in the last few years. When the first release candidate was available back in 2005, you could hardly use it in a productive working environment due to the lack of tool support at that time. By now, most build tools and IDEs come with support for JUnit 4, so it's about time to give it a try. This article describes what's different compared to JUnit 3.8.x."
Perl Weekly Perl 6 mailing list summary (O'Reilly) The December 17-23, 2006 edition of the Weekly Perl 6 mailing list summary is out with coverage of the latest Perl 6 developments.
Weekly Perl 6 mailing list summary (O'Reilly) The December 24-30, 2006 edition of the Weekly Perl 6 mailing list summary is out with coverage of the latest Perl 6 developments.
99 Problems in Perl 6 (O'Reilly) Curtis Poe solves some problems using Perl 6 in an O'Reilly article. "Have you wanted to start playing with Perl 6 but find yourself wondering what to write? I use Pugs, a Perl 6 implementation being written in Haskell and have been tremendously enjoying Perl 6. Like many, I’m impatient, but the work on Perl 6 has been progressing quite well and I’m quite keen to see the alpha. However, if you’re like me, you probably do better with a new language by actually writing something in it. Well, not only do I have something for you to write, you can actually help out the Perl 6 effort!"
Ruby Looking Ahead at Ruby in 2007 (Linux Journal) Pat Eyler looks ahead to Ruby developments in 2007 in a Linux Journal article. "Last week, I looked back at Ruby in 2006. This week, it's time to look ahead. Here are 10 Ruby things I think are going to be hot in 2007:"
Tcl/Tk Dr. Dobb's Tcl-URL! The December 29, 2006 edition of Dr. Dobb's Tcl-URL! is online with new Tcl/Tk articles and resources.
Tcl-URL! The January 2, 2007 edition of the Tcl-URL! is online with new Tcl/Tk articles and resources.
XML A Theory of Compatible Versions (XML.com) XML.com presents an article by David Orchard entitled A Theory of Compatible Versions. "Creating XML languages that are compatible and extensible is a difficult problem. This week David Orchard argues for a theory of compatibility in which he describes some of the conditions for creating compatible XML languages."
Debuggers A New Approach To Debugging Robert O'Callahan talks about the Amber debugger project in his web log. "I have built a system, which I'm calling Amber, to record the complete execution history of arbitrary Linux processes. The history is recorded using binary instrumentation based on Valgrind. The history is indexed to support efficient queries that debuggers need, and then compressed and written to disk in a format optimized for later query and retrieval. The history supports efficient reconstruction of the contents of any memory location or register at any point in time. It also supports efficient answers to "when was the last write to location X before time T", "when was location P executed between times T1 and T2", and other kinds of queries. I can record the 4.1 billion instructions of a Firefox debug build starting up, displaying a Web page, and exiting; the compressed, indexed trace is about 0.83 bytes per instruction executed." (Thanks to Jerome Lacoste.)
IDEs eric3 3.9.3 released Version 3.9.3 of eric3, an IDE for Python and Ruby, is available. "This release fixes a few bugs and enhances compatibility with subversion 1.4."
Page editor: Forrest Cook |
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![[CherryPy]](/images/ns/cherrypy.png)