Mailman 3 May 2006 - Python-announce-list

ANN: CherryPy book
by Sylvain Hellegouarch May 6, 2006

May 6, 2006

Hello all, I am pleased to announce that I will be writing a book on CherryPy which will published by Packt Publishing [1]. Packt is a fairly recent publishing company based in the United Kingdom which has focused since the beginning in providing the developer community with books specific to their day to day tasks. I have been dealing with the guys at Packt for a bit more than a month and I can tell you that they are really excited by a book on CherryPy as I am. In fact if you are looking for a friendly and ready to support publisher, go and contact them [2]. The approach taken for the book is to go through the design of an application and see how CherryPy can be a great choice for rapid web application development. Throughout the book I will explain concepts behind CherryPy itself as well as third-party products such as ORMs and template engines. At the end of the book as an application developer you will understand how CherryPy can benefit you for web development while having a good overview of the CherryPy's design. Even though it will be a standalone book, I also believe that the book might be a good extension to the TurboGears book [3]. I cannot deny I am really thrilled by the project and I hope being able to finish it in a not far future for you guys. Stay tuned. - Sylvain http://www.defuze.org [1] http://www.packtpub.com/ [2] https://www.packtpub.com/article/aboutus [3] http://groups.google.com/group/turbogears-announce/browse_frm/thread/b960a3…

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ANN: PyGUI 1.7.1
by greg May 6, 2006

May 6, 2006

PyGUI 1.7.1 is now available: http://www.cosc.canterbury.ac.nz/~greg/python_gui/ New features: - Slider control. - run() convenience function, equivalent to application().run(). - Geometry.rects_intersect() function. Enhancements: - Files given on the command line opened at application startup. - BlobEdit example extended to demonstrate update_rect usage. Bug fixes: - Disabled a debugging statement that was inadvertently left on in Cursor.__init__. - Changed the package name in setup.py to something more meaningful than 'foo'. What is PyGUI? -------------- PyGUI is an experimental highly-Pythonic cross-platform GUI API. Implementations are currently available for MacOSX and Gtk. For a full description of the project goals, see the PyGUI web page at the above address.

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Python sprint in Arlington VA on June 3rd
by A.M. Kuchling May 5, 2006

May 5, 2006

A Python sprint will be held on Saturday June 3, from 10 AM to 5 PM at the Arlington Career Center in Arlington VA. Thanks to Jeff Elkner, who found space for holding a Python sprint. I've created a wiki page at <http://wiki.python.org/moin/ArlingtonSprint> with information and directions; please add your name if you'll be coming. The wiki page can also be used to brainstorm about tasks to work on. While this started out as a Python core sprint, there's no problem if people want to come and work on something other than the Python core. --amk

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ANN: PyBluez 0.7 - Bluetooth extensions for Windows XP and GNU/Linux
by ashuang＠gmail.com May 5, 2006

May 5, 2006

PyBluez is an effort to create python wrappers around system Bluetooth resources to allow Python developers to easily and quickly create Bluetooth applications. PyBluez works on GNU/Linux (bluez stack) and Windows XP (Microsoft stack). New in this release is support for Windows XP http://org.csail.mit.edu/pybluez Comments, improvements, and suggestions greatly appreciated! -albert

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ANN: 4 little Python programs
by RM May 5, 2006

May 5, 2006

I recently got access to one of those new GooglePages and decided to play around with it a little. I figured it would be a nice *easy* way to get a website going. I may eventually do something more professional, but hey, this was free in both money and time. :) I had been thinking of releasing some of my little personal apps for a while. So, this finally motivated me to clean them up enough for release. The website is not yet finished, but I couldn't wait to share with you these little Python programs. I have packaged them nicely for Windows using py2exe and InnoSetup. Unfortunately, I haven't had the time to do the same for Linux. I plan to that soon. You can get them here. http://rmcorrespond.googlepages.com/customsoftware I have been using them for several years, but never got around to releasing them. Any way, I hope you like them. Oh, they are all licensed with the GPL, but for now I am only making the source available upon request. If you have any questions or suggestions let me know. -Ruben

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Leipzig Python User Group - Meeting, May 9 2006, 8:00pm
by Mike Mueller May 4, 2006

May 4, 2006

========================= Leipzig Python User Group ========================= Next Meeting Tuesday, May 9 2006 ----------------------------------- We will meet on April 9 at 8:00 pm at the training center of Python Academy in Leipzig, Germany (http://www.python-academy.com/center/find.html). Ralf Muschall will talk about Tkinter, the GUI toolkit that comes with a Python standard installation. Food and soft drinks are provided. Please send a short confirmation mail to info(a)python-academy.de, so we can prepare appropriately. Everybody who uses Python, plans to do so or is interested in learning more about the language is encouraged to participate. While the meeting language will be mainly German, English speakers are very welcome. We will provide English interpretation if needed. Current information about the meetings can always be found at http://www.python-academy.com/user-group/index.html ========================= Leipzig Python User Group ========================= Stammtisch am 09.05.2006 ------------------------- Wir treffen uns am 09.05.2006 um 20:00 Uhr wieder im im Schulungszentrum der Python Academy in Leipzig (http://www.python-academy.de/Schulungszentrum/anfahrt.html). Diesmal wird Ralf Muschall über die Anwendung von Tkinter, der Bibliothek für grafische Nutzeroberflächen, die in der Standard-Python-Installation enthalten ist, sprechen. Für das leibliche Wohl wird gesorgt. Wir bitten um kurze Anmeldung per e-mail an: info(a)python-academy.de An den Treffen der Python Anwendergruppe kann jeder teilnehmen, der Interesse an Python hat, die Sprache bereits nutzt oder nutzen möchte. Die Arbeitssprachen des Treffens ist Deutsch. Englisch sprechende Python-Enthusiasten sind trotzdem herzlich eingeladen. Wir übersetzen gern. Aktuelle Informationen zu den Treffen sind immer unter http://www.python-academy.de/User-Group/index.html zu finden.

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Shed Skin Python-to-C++ Compiler 0.0.8
by Mark Dufour May 4, 2006

May 4, 2006

Hi there, I have just released version 0.0.8 of Shed Skin, an optimizing Python-to-C++ compiler. It allows for translation of pure (unmodified), implicitly statically typed Python programs into optimized C++, and hence, highly optimized machine language. Many non-trivial benchmarks (ray tracer, chess player, othello player, sat solver, 3 sudoku solvers..) run typically 2-40 times faster than when using Psyco, 12 times on average, and 2-220 times than when using CPython, 45 times on average. Please see http://mark.dufour.googlepages.com for for information, and a link to my Master's Thesis, with detailed measurements and an explanation of how the compiler works. Please feel free to join the project (it's currently only 6000 lines!), or look into the possibilities of doing a Google SoC project on it (I got accepted last year, so it might be possible again! :)) Otherwise, please give it a run and let me know what breaks. Thanks, Mark Dufour. -- "How should I know if it works? That's what beta testers are for. I only coded it." - Linus Torvalds

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[ANN] DOPAL 0.60 - Python library for Azureus
by Allan Crooks May 3, 2006

May 3, 2006

Summary: ------- DOPAL is a library to allow programs written in Python to easily communicate the Java BitTorrent client Azureus, via the XML/HTTP plugin (allowing communication over a network). Changes: ------- Version 0.60 is the fourth public release of DOPAL. The first major change is the addition of a new scripting framework - this allows DOPAL to be used much small scripts to be written much more conveniently, as well as making it easy to write much more portable scripts than before. The goal of this framework is to make DOPAL a much more convenient and natural choice to write specific behaviour for Azureus (without having the overhead of creating a plugin). Check the "scripts" link for more information and examples. The second major change is that DOPAL is now Unicode-friendly - tracebacks no longer occur when trying to deal with torrents which contain characters that are not supported by the default system encoding. Unicode data is also now encoded properly when sending XML for Azureus to process. There's also various other minor changes - check the changelog for more information. The method definitions in this release are in sync with Azureus 2.4.0.3 b20 (though you can use any version of Azureus with DOPAL). Description: ----------- It provides a very Pythonic way of interacting with the objects available in Azureus's Plugin API - you can interact with remote objects and invoke methods on them as easily as any normal Python object (while all the connection handling and XML generation and parsing is done behind the scenes). It also allows you to write code which can do just the same things as Java plugins for Azureus can (well, almost). Links: ----- Website: http://dopal.sourceforge.net/ Example usage: http://dopal.sourceforge.net/examples.html Scripts: http://dopal.sourceforge.net/scripts.html

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ANN: PyTables 1.3.1 - Hierarchical datasets
by Francesc Altet May 3, 2006

May 3, 2006

=========================== Announcing PyTables 1.3.1 =========================== This is a new minor release of PyTables. On it, you will find support for NumPy integers as indexes of datasets and many bug fixes. *Important note*: one of the fixes adresses a bug in the flushing of I/O buffers that was introduced back in PyTables 1.1. So, for those of you that want to improve the integrity of the PyTables files during unexpected crashes, an upgrade is strongly encouraged. Go to the PyTables web site for downloading the beast: http://www.pytables.org/ or keep reading for more info about the new features and bugs fixed. Changes more in depth ===================== Improvements: - NumPy integer scalars are supported as indexes for ``__getitem__()`` and ``__setitem__()`` methods in ``Leaf`` objects. In addition, any object that exposes the __index__() method (see PEP 357) is supported as well. This later feature will be more useful for those of you that start using Python 2.5. Meanwhile, PyTables will use its own guessing (quite trivial, in fact) in order to convert indexes to 64-bit integers (you know, PyTables does support 64-bit indexes even in 32-bit platforms). Bug fixes: - ``Leaf.flush()`` didn't force an actual flush on-disk at HDF5 level, raising the chances of letting the file in an inconsistent state during an unexpected shutdown of the program. Now, it works as it should. This bug was around from PyTables 1.1 on. Thanks to Andrew Straw for complaining about this persistently enough. ;-) - The code for recognizing a leaf class in a native HDF5 file was not aware of the ``trMap`` option if ``openFile()``, thus giving potentially scary error messages. This has been fixed. - When an iterator was used on an unbound table, PyTables crashed. A workaround has been implemented so as to avoid this. In addition, a better solution has been devised, but as it requires an in-deep refactorisation, it will be delivered with PyTables 1.4 series. - Added ``Enum.__ne__()`` method to avoid equal enumerations comparing to both True and False. Closes ticket #8 (thanks to Ashley Walsh). - Work around Python bug when storing floats in attributes under some locales. See ticket #9 (thanks to Fabio Zadrozny). Deprecated features: - None Backward-incompatible changes: - Please, see ``RELEASE-NOTES.txt`` file. Important note for Windows users ================================ If you are willing to use PyTables with Python 2.4 in Windows platforms, you will need to get the HDF5 library compiled for MSVC 7.1, aka .NET 2003. It can be found at: ftp://ftp.ncsa.uiuc.edu/HDF/HDF5/current/bin/windows/5-165-win-net.ZIP Users of Python 2.3 on Windows will have to download the version of HDF5 compiled with MSVC 6.0 available in: ftp://ftp.ncsa.uiuc.edu/HDF/HDF5/current/bin/windows/5-165-win.ZIP What it is ========== **PyTables** is a package for managing hierarchical datasets and designed to efficiently cope with extremely large amounts of data (with support for full 64-bit file addressing). It features an object-oriented interface that, combined with C extensions for the performance-critical parts of the code, makes it a very easy-to-use tool for high performance data storage and retrieval. PyTables runs on top of the HDF5 library and numarray (but NumPy and Numeric are also supported) package for achieving maximum throughput and convenient use. Besides, PyTables I/O for table objects is buffered, implemented in C and carefully tuned so that you can reach much better performance with PyTables than with your own home-grown wrappings to the HDF5 library. PyTables sports indexing capabilities as well, allowing doing selections in tables exceeding one billion of rows in just seconds. Platforms ========= This version has been extensively checked on quite a few platforms, like Linux on Intel32 (Pentium), Win on Intel32 (Pentium), Linux on Intel64 (Itanium2), FreeBSD on AMD64 (Opteron), Linux on PowerPC (and PowerPC64) and MacOSX on PowerPC. For other platforms, chances are that the code can be easily compiled and run without further issues. Please, contact us in case you are experiencing problems. Resources ========= Go to the PyTables web site for more details: http://www.pytables.org About the HDF5 library: http://hdf.ncsa.uiuc.edu/HDF5/ About numarray: http://www.stsci.edu/resources/software_hardware/numarray To know more about the company behind the PyTables development, see: http://www.carabos.com/ Acknowledgments =============== Thanks to various the users who provided feature improvements, patches, bug reports, support and suggestions. See the ``THANKS`` file in the distribution package for a (incomplete) list of contributors. Many thanks also to SourceForge who have helped to make and distribute this package! And last but not least, a big thank you to THG (http://www.hdfgroup.org/) for sponsoring many of the new features recently introduced in PyTables. Share your experience ===================== Let us know of any bugs, suggestions, gripes, kudos, etc. you may have. ---- **Enjoy data!** -- The PyTables Team

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ANN: Advanced Python training, May 17-19, San Francisco
by w chun May 3, 2006

May 3, 2006

FINAL REMINDER... we still have some seats left! What: Advanced Python Programming When: May 17-19, 2006 Where: San Francisco (SFO/San Bruno), CA, USA http://cyberwebconsulting.com (click on "Python Training") This course, meant to follow our in-depth introduction class, adds new tools to the Python programmer's toolkit. We explore advanced topics such as: sockets, Internet clients, GUIs with Tkinter, Web/CGI, databases/SQL, XML, Extending Python with C, threads, etc. We provide lectures, code samples, and some exer- cises to get attendees comfortable developing applications with Python in these disciplines. We are proud to be the only ones offering Python training in such advanced topics. Come join us in beautiful Northern California for another rigorous Python training event taught by software engineer, "Core Python Programming" author, and technical instructor, Wesley Chun. This is an introduction to Python in various areas of advanced topics geared towards those who have some programming experience in Python (any implemention, plat- form, or architecture). This course will take place in San Bruno right near the San Francisco International Airport at the: Staybridge Suites San Francisco Airport 1350 Huntington Ave San Bruno, CA 94066 USA +1-650-588-0770 LOCALS: it'll be at a hotel with easy 101/280/380, BART and CalTrain access (San Bruno stations) VISITORS: free shuttle directly from the San Francisco airport, lots of free food and wireless The cost is $1295 per attendee. Discounts are available for multiple registrations as well as teachers/students and those with financial hardship. For more information and registration, go to the website above.

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