Mailman 3 February 2004 - Python-announce-list

[ANNOUNCE] gmpy 1.0 alpha released
by Alex Martelli Nov. 13, 2005

Nov. 13, 2005

See http://gmpy.sourceforge.net/ for details. What is it: a wrapper for the GMP library, to provide multi-precision arithmetic for Python. Multi-precision floats, and unbounded-precision rationals, are not present in stock Python; multi-precision integers ('long') are, but gmpy's version of multi-precision integers is faster for some operations (NOT all -- used to be, but Python 2.3 did serious enhancements to some operations on longs) and provides lots of nifty pre-packaged additional functions. Minor changes and bug-fixes since the latest 0.9 pre-alpha; support for Python 2.3. The Windows binary release is now for Python 2.3 _only_ (if you're stuck with Python 2.2 on Windows, you can keep using gmpy 0.9 pre-alpha and not really suffer from that). Known bug on Windows: the scan0 and scan1 functions appear broken (perhaps related to the lack of a GMP 4.0 library for Windows -- haven't found one around yet). Alex

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PyPI code has been updated
by Richard Jones Feb. 29, 2004

Feb. 29, 2004

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I've just updated the code that runs the Python Package Index, PyPI. This release includes: - - add meaningful titles to pages (uses page heading) - - properly unquote version numbers for release editing page (bug #855883) - - allow removal of more than one release at a time - - make "delete whole package" a form button - - made wording of role admin link more helpful - - hide all current releases when a new release is added The Python Package Index is online at: http://www.python.org/pypi The notes for this release are at: http://www.python.org/pypi?:action=display&name=pypi&version=2004-03-01 Enjoy, Richard -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFAQnZprGisBEHG6TARAg3FAJ4xqfotXj0Jklxg1ueE2wf6+QZy0wCfdNcH Q7rktdySorju2wdY1TRJfCc= =nbvw -----END PGP SIGNATURE-----

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ANN: PyAlbum 0.4.3: a template driven web photo album generator
by Bernd Preusing Feb. 29, 2004

Feb. 29, 2004

Hi, I'd like to announce the first public release 0.4.3 of PyAlbum. What is PyAlbum: ============= - generates static HTML pages or simple text files from Images - reads info from several sources (text, image, EXIF) - uses flexible templates to generate the output. - existing templates designed for multiple languages - until now, command line only, GUI to come - every feature is configurable - platform independent (that's Python :-) - uses PIL and EmPy modules I know, this is the thousands program of its kind, but THIS ONE fits my personal needs... PyAlbum is hosted on SourceForge.net at http://pyalbum.sourceforge.net/index.html The release can be downloaded from its project page: http://sourceforge.net/projects/pyalbum/ Enjoy, Bernd

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ANN: Logging Package v0.4.9.2 released
by vinay_sajip＠yahoo.co.uk Feb. 28, 2004

Feb. 28, 2004

A new version of the Python logging package has been released. If you are using version 2.3 of later of Python, this release will not mean much to you - it is the same as recent checkins into Python CVS. However, this release fixes numerous bugs reported since the last independent release (0.4.7), and may be of interest to people using earlier versions of Python. What Does It Do? ================ The logging package offers the ability for any Python program to log events which occur during program execution. It's typically used to provide application diagnostics, warnings and error messages. In addition to capturing "what happened", "where it happened", "when it happened", "how important it is" and event specific data, you can configure, without changing the application source code, both the verbosity of logging and the routing of events to different destinations such as console, disk files, sockets, email addresses, Web servers, SOAP servers etc. etc. You can even change the configuration of a running program without stopping and restarting it! You can use the logging package in exception handlers, and it will include traceback information in the log. It's thread-safe, and very easy to use - just "import logging" and log away! Classes provided include: Logger - used to log messages for a particular area of an application. You can instantiate these wherever you want, there's no need to pass references to them around your application. You can log events based on importance levels of DEBUG (least important), INFO, WARN, ERROR, and CRITICAL (most important). You can define your own levels if the default levels don't meet your requirements. Handler - used to route events to particular destinations. Handlers included are: StreamHandler (for generalized streams, including console) FileHandler (for disk files - including log file rotation with size limits for log files) SocketHandler (for sending events to a TCP socket) DatagramHandler (for sending events to a UDP socket - faster, but less reliable than TCP) SMTPHandler (send events to arbitrary email addresses) HTTPHandler (send events to Web servers) SysLogHandler (send events to Unix syslog) MemoryHandler (batch up events and process them several at a time) NTEventLogHandler (send events to Windows NT event logs) There are also examples of XMLHandler and SOAPHandler in the distribution. Formatter - used to format events as text strings. Flexible "msg % arg_tuple" formatting is the basis for formatting, with flexible date/time formatting including ISO8601 and any strftime-based formats. Filter - used when filtering based on importance (DEBUG/INFO/WARNING/ERROR/CRITICAL) is not sufficient. The distribution includes examples of filters based on class matching, regular expression matching, value matching, and logger matching. In the unlikely event that you're daunted by all the apparent complexity, fear not. The package offers a simple function-based interface to allow very simple, almost casual use of the underlying features. In addition to the core logging functionality, you get the ability to configure logging using a ConfigParser-based text file format, a Tkinter-based GUI configurator which creates configuration files for you, and a simple network-based event receiver which receives events on TCP, UDP, HTTP and SOAP ports. This is suitable for testing and might perhaps serve as a model for your own event receivers. Also included are over 20 test scripts which serve both as test harnesses and examples of how to use the logging package. You can get more information from http://www.red-dove.com/python_logging.html There are "download" and "recent changes" links at the top of that page. API documentation is available at http://www.red-dove.com/logging/index.html As always, your feedback is most welcome (especially bug reports, patches and suggestions for improvement). Enjoy! Cheers Vinay Sajip Red Dove Consultants Ltd. Changes since the last independent release: =========================================== Traceback text is now cached. Tracebacks can be propagated across sockets as text. Added makeLogRecord() to allow a LogRecord to be created from a dictionary. Closing a handler now removes it from the internal list used by shutdown(). Made close() call flush() for handlers where this makes sense (thanks to Jim Jewett). The exc_info keyword parameter can be used to pass an exception tuple as well as a flag indicating that the current exception should be logged. A shutdown hook is registered to call shutdown() on application (Python) exit (thanks to Jim Jewett). Removed redundant error check in setLoggerClass(). Added RESET_ERROR to logging.config. SocketHandler now uses an exponential backoff strategy (thanks to Robert Olson). Made _listener global in stopListening(). Made listen() correctly pass the specified port. Removed some redundant imports in __init__.py. Added the record being processed as a parameter to handleError (thanks to Gordon den Otter for the idea). Handler.handle returns the result of applying the filter to the record (thanks to Gordon den Otter for the idea). Added a seek(0, 2) in RotatingFileHandler before the tell() call. This is because under Windows, tell() returns 0 until the first actual write (thanks to Gordon den Otter for the patch). Altered findCaller to not use inspect (thanks to Jeremy Hylton for the patch). Renamed warn and WARN to warning and WARNING. This may break existing code, but the standard Python module will use warning/WARNING rather than warn/WARN. The fatal and FATAL synonyms for critical and CRITICAL have also been removed. Added defaultEncoding and some support for encoding Unicode messages (thanks to Stéphane Bidoul for the suggestion). Added process ID to the list of LogRecord attributes. Modified Logger.removeHandler so that it does not close the handler on removal. Modified SMTPHandler to treat a single "to address" correctly (thanks to Anthony Baxter). Modified SMTPHandler to add a date header to the SMTP message (thanks to David Driver for the suggestion). Modified HTTPHandler to factor out the mapping of a LogRecord to a dictionary (thanks to Franz Glasner for the patch). Minor documentation corrections.

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cx_Oracle 4.0.1
by Anthony Tuininga Feb. 28, 2004

Feb. 28, 2004

What is cx_Oracle? cx_Oracle is a Python extension module that allows access to Oracle and conforms to the Python database API 2.0 specifications with a few exceptions. Where do I get it? http://starship.python.net/crew/atuining http://www.computronix.com/utilities.shtml (it may be a few days before the second site is updated) What's new? 1) Fixed bugs on 64-bit platforms that caused segmentation faults and bus errors in session pooling and determining the bind variables associated with a statement. 2) Modified test suite so that 64-bit platforms are tested properly. 3) Added missing commit statements in the test setup scripts. Thanks to Keith Lyon for pointing this out. 4) Fix setup.py for Cygwin environments. Thanks to Doug Henderson for providing the necessary fix. 5) Added support for compiling cx_Oracle without thread support. Thanks to Andre Reitz for pointing this out. 6) Added support for a new keyword parameter called threaded on connections and session pools. This parameter defaults to False and indicates whether threaded mode ought to be used. It replaces the module level attribute OPT_Threading although examining the attribute will be retained until the next release at least. 7) Added support for a new keyword parameter called twophase on connections. This parameter defaults to False and indicates whether support for two phase (distributed or global) transactions ought to be present. Note that support for distributed transactions is buggy when crossing major version boundaries (Oracle 8i to Oracle 9i for example). 8) Ensure that the rowcount attribute is set properly when an exception is raised during execution. Thanks to Gary Aviv for pointing out this problem and its solution. Just as a side note, I have also built and tested cx_Oracle under Oracle 10g on Linux and it works correctly without changes. Oracle 10g has not yet been released for Windows but it will be tested on that platform as well when it becomes available. -- Anthony Tuininga anthony(a)computronix.com Computronix Distinctive Software. Real People. Suite 200, 10216 - 124 Street NW Edmonton, AB, Canada T5N 4A3 Phone: (780) 454-3700 Fax: (780) 454-3838 http://www.computronix.com

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Sprint on Stackless Python March 10-14 in Berlin
by Christian Tismer Feb. 27, 2004

Feb. 27, 2004

As already announced, the *********************************************** *** *** *** S t a c k l e s s S p r i n t *** *** *** *********************************************** has now a settled date: It will take place in Berlin, March 10-14 2004. We will have a room in the Free University of Berlin in Berlin-Dahlem. Address and room will be announced, soon. How to attend? See bottom of this message. Contents? Well, there is a lot possible. Current topics which come into mind are * autoscheduling * scheduling object * brain storming! * Zope Wiki and Documentation * making channels really stackless * demo applications * more regression tests * real zope apps? * refactoring Stackless: simpler and configurable * create a Stackless tutorial * minimalist Stackless Python with no hardware dependency * assembly-free Stackless with setjmp/longjmp * spreading the internals between developers but this is completely open for discussion. Level? Well, it will be a bit simpler than the pypy-sprints, which I think are very difficult, but Stackless has its built-in difficulties by nature. Usability? This is by far, now and forever, the best possible way to learn about Stackless Python and to become a core developer. But no guarantee possible :-) Payback? Well, it is intended that Stackless Python should be developed further. If you are using or planning to use Stackless for your products, you are highly encouraged to support Stackless Python by money and by submitting your best developers, regardless how painfully they are going to be missed by the company. Coaching? Yes, it is probable and whished, that Stackless Python will become a topic for training and coaching. First of all, we will try to leverage our knowledge. Fun? Guaranteed. Schedule -------- There is no particular schedule, yet, but for the first day. I am planning to give a talk on Stackless technology, and to be available for questions and discussion during the whole first day. Attendees with small or no knowledge about Stackless Python are strongly encouraged to join that session. Accomodation ------------ There are no special arrangements planned. We hope to find a place for every external sprinter at the home of the Berlin habitants. I'm taking two already, please don't ask. How to attend: -------------- Please subscribe to the mailing list stackless-sprint(a)stackless.com which you can find via this interface: http://www.stackless.com/mailman/listinfo/stackless-sprint By subscribing, you state that you want to come to the sprint. We have only limited reources left and can take only a few. ------- I hereby wish to thank *Dirk Pape* and *Christoph v. Stuckrad* from FU Berlin for making this event possible! cheers - chris -- Christian Tismer :^) <mailto:tismer@stackless.com> Mission Impossible 5oftware : Have a break! Take a ride on Python's Johannes-Niemeyer-Weg 9a : *Starship* http://starship.python.net/ 14109 Berlin : PGP key -> http://wwwkeys.pgp.net/ work +49 30 89 09 53 34 home +49 30 802 86 56 mobile +49 173 24 18 776 PGP 0x57F3BF04 9064 F4E1 D754 C2FF 1619 305B C09C 5A3B 57F3 BF04 whom do you want to sponsor today? http://www.stackless.com/

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www.python.org needs YOU!
by webmaster＠python.org Feb. 27, 2004

Feb. 27, 2004

The team that administers www.python.org is looking for additional maintainers, both to keep the text updated and to create automated solutions that require less human interaction. If you're interested in helping, please send e-mail to webmaster(a)python.org. Please specify what you'd like to help with, how many hours per week you're available, and list a couple of community references if you're not active on one of the main Python mailing lists or comp.lang.python. Please be patient if we take a while to respond -- after all, the reason we're asking for help is that we're behind! -- Aahz (aahz(a)pythoncraft.com) <*> http://www.pythoncraft.com/ "Do not taunt happy fun for loops. Do not change lists you are looping over." --Remco Gerlich, comp.lang.python

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OSAF Announces the Release of Chandler 0.3
by Ted Leung Feb. 26, 2004

Feb. 26, 2004

We are pleased to announce Chandler 0.3! Our architecture is finally stable enough to start developing end-user features. Release 0.3 targets developers who want an early preview into our architecture as we are developing it. With this release we now can begin to encourage open source developers to work with the OSAF core development team, as in the upcoming PyCon Sprint. (See details below.) =================================== New in Release 0.3 =================================== The two biggest architecture advancements in this release are the Repository and the Chandler Presentation and Interaction Architecture (CPIA). In 0.3, our Repository is much more robust and scalable, and now implements a transaction and threading model. This release also marks the debut of CPIA, which is a UI layer in our architecture that is uniquely adapted for item-centric applications based on our Repository. Not only does it abstract away implementation-specific UI widgets, but CPIA elements have direct access to our Repository via data-driven queries. You can find out more about the 0.3 release at: http://wiki.osafoundation.org/twiki/bin/view/Chandler/ ChandlerZeroPointThreeReadme You can download the 0.3 release for Linux, MacOS, and Windows from: http://downloads.osafoundation.org/chandler/releases/0.3/ =================================== OSAF events at PyCon 2004 =================================== PyCon 2004, March 24-26, 2004 in Washington, D.C., is a community-oriented conference targeting developers (both those using Python and those working on the Python project). It provides opportunities to learn about significant advances in the Python development community, to participate in a programming sprint with some of the leading minds in the Open Source community, and to meet fellow developers from around the world. The organizers work to make the conference affordable and accessible to all. The Chandler PyCon Sprint is free and does not require registration for the conference. Mitch Kapor to give keynote address ------------------------------------------------------------- Mitch, founder of the Open Source Application Foundation, will be the keynote speaker for the conference. Chandler Sprint ------------------------------------------------------------- OSAF will be running a Sprint from Mar 20-23 prior to the PyCon 2004 conference. The topics for the sprint will focus on the Chandler repository. At the moment, these include repository dump/restore functionality, and remote repository sharing using WebDAV. Andi Vajda and Ted Leung will the coaches for the sprints, and will be doing brief tutorials for people unfamiliar with the Chandler repository. We want to use the sprint to involve more people in the Chandler development process as well as accomplish some tasks that will be useful for Chandler. If you are interested in participating in the sprint, please add yourself to the ChandlerSprint page: http://www.python.org/cgi-bin/moinmoin/ChandlerSprint What is a Sprint? ------------------------------------------------------------- The sprint is a four day focused development session, in which developers pair in a room and focus on building a particular subsystem. A sprint is organized with a coach leading the session. The coach sets the agenda, tracks activities, and keeps the development moving. The developers work in pairs using extreme programming's pair programming approach. And a BOF too! ------------------------------------------------------------- In addition, we plan to have an OSAF 'Birds Of a Feather' gathering during PyCon itself to answer questions about Chandler and socialize with Python developers.

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ANN: Pyxel v0.2
by prochak＠netzero.net Feb. 26, 2004

Feb. 26, 2004

I would like to announce the release of Pyxel v0.2. Pyxel is a graphical library designed to provide portability between various GUI environments. The main goal of pyxel is to provide interactive plotting and block diagram capabilities to python. Currently pyxel widgets work in both wxPython and pygame applications. Support for more libraries is under development. http://bellsouthpwp.net/p/r/prochak/pyxel.html Thanks, Erik Lechak

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ANN: Twisted 1.2.0 networking framework
by Itamar Shtull-Trauring Feb. 26, 2004

Feb. 26, 2004

Twisted is an event-driven networking framework for server and client applications. For more information, visit http://www.twistedmatrix.com, join the list http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python or visit us on #twisted at irc.freenode.net. The Twisted from Scratch tutorial is a good starting point for learning Twisted: http://twistedmatrix.com/documents/howto/tutorial What's New in 1.2.0 =================== - SFTP server implementation for the SSH server. - Improved wxPython support. - IMAPv4 enhancements and bug fixes. - Allow disabling display of tracebacks in error web pages. - ident protocol implementation (client and server). - Support mapping arbitrary child FDs when running processes on POSIX. - Initial SOAP client support (using SOAPpy). - Partial download support for FTP client. - Web framework now supports different handlers for different methods (e.g. GET or POST). - Coverage support in the trial testing framework. - Bug fixes and documentation and feature enhancements. What is Twisted? ================ Twisted is an event-driven framework for building networked clients and servers. It contains a powerful and simple networking core, a full-featured suite of interoperable protocols, among them a powerful web server and applications framework. Twisted supports many event loops for both server apps and GUI integration on the client side, including: - Win32 events, including GUI support - Mac OS X - GTK+ - GTK+ 2 - Qt - wxPython - Tkinter Twisted can run protocols over TCP, SSL, UDP, multicast, Unix sockets and subprocesses. It also includes scheduling support, threading integration, RDBMS event loop integration and other basic requirements for networked applications. Also included are implementations of many protocols. In some cases this includes complete frameworks providing facilities on top of the base protocol: - SSH - IMAP - DNS - FTP (client only, server needs rewrite) - HTTP, including a complete web framework - Jabber - SIP - XML-RPC server and client frameworks - SOAP server framework - NNTP and complete NNTP server framework - SOCKSv4 (server only) - SMTP - IRC - telnet - POP3 - AOL's instant messaging TOC - MSN messaging - OSCAR, used by AOL IM as well as ICQ (client only) - MouseMan serial mice, and GPS devices - Twisted Perspective Broker, a remote object protocol

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