May 2002 - Zope-Announce

[ANNOUNCE] ArielPartners releases CVSFile 0.8
by Craeg K Strong 30 May '02

30 May '02

This is the second public release of our CVSFile product. http://www.zope.org/Members/arielpartners/CVSFile CVSFile enables Zope content to be served out of files residing in CVS sandboxes, and provides access to common CVS functions through the web in the Zope Management Interface. This new release adds much requested features like * batch add capability -- add instances whole directories at a time! * tunable parameters for CVS commands, and * programmability you may now create instances using scripts rather than through the web GUI if you wish. There are even a set of detailed example scripts to help you get started! Why not simply use ZCVSFolder? Because CVSFile stores files in CVS as normal files, rather than as Python "pickles." This makes it easy to use the same content, held in CVS, in both Zope and non-Zope contexts. CVSFile extends ExternalFile, and therefore inherits all of its functionality. This new release requires ExternalFile version 1.0. This product is compatible with the popular ExternalEditor product. In order to upgrade your existing CVSFile 0.7 objects to version 0.8, you will need to run the repair() method. See the section on Schema Migration in the README.txt file for more details. It is very easy to do. Regards, --Craeg Strong

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[ANNOUNCE] ArielPartners releases ExternalFile 1.0
by Craeg K Strong 30 May '02

30 May '02

This is the fourth public release of our ExternalFile product. http://www.zope.org/Members/arielpartners/ExternalFile This new release adds much requested features like * batch add capability -- add instances whole directories at a time! * extensible mimetypes -- you can now add new mimetypes and control exactly how they are to be displayed * can behave_like File -- non-image binaries now behave_like Zope Files, with much improved mime type handling. * programmability you may now create instances using scripts rather than through the web GUI if you wish. There are even a set of detailed example scripts to help you get started! This new release is compatible with CVSFile-0-8. It also extends its "workalike" capabilities. ExternalFile can now behave like any of the following: * DTMLDocument * DTMLMethod * Image * File Why not simply use ExtFile? Because ExternalFile supports pointing to a file "in situ" like a symbolic link, rather than copying it into some central repository directory. This may not seem like a big deal, until you consider that those files might be stored in a revision control system like CVS. ExternalFile gives you the ability to create a Zope object that points to a file in, for example, a CVS sandbox for its content. ExternalFile is usable by itself. It is also the base class for CVSFile. This product is compatible with the popular ExternalEditor product. Objects created using ExternalFile version 0.9 should work with no changes under version 1.0 that is, no special Schema Migration is necessary. Regards, --Craeg Strong

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[ANN] HTTPMounter 0.20 released
by Andreas Jung 30 May '02

30 May '02

HTTPMounter 0.20 is a small Zope product that allows to mount a remote HTTP server (or a subtree or a remote HTTP server) into a local Zope instance (similar to LocalFS). Download it from: http://www.zope.org/Members/ajung/HTTPMounter Changes since 0.10: - works now with VHM - Acquisition support added - HTTP headers of origin server are now send back to the web client --------------------------------------------------------------------- - Andreas Jung Zope Corporation - - EMail: andreas(a)zope.com http://www.zope.com - - "Python Powered" http://www.python.org - - "Makers of Zope" http://www.zope.org - - "Life is too short to (re)write parsers" - ---------------------------------------------------------------------

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[ANN] TextIndexNG 1.0 final released
by Andreas Jung 30 May '02

30 May '02

I am pleased to announce the final release of TextIndexNG V 1.0. TextIndexNG is a pluggable index for the ZCatalog that enhances the full text indexing capabilities of Zope. Features - support for document converters (HTML, PDF, WinWord, PowerPoint, Postscript). Custom converters can be easily added - stemmer support for 12 languages - support for right truncation and wildcards - similarity search (soundex, metaphone support) (for english) - NEAR search - phrase search - pluggable query parsers (two parsers included) - stop words support - new 'test' tab for interactive testing - faster than Zopes TextIndex - compatible with ASCII and all eight bit charactersets Requirements - Zope 2.5 or Zope CVS trunk checkout Documentation - http://www.zope.org/Members/ajung/TextIndexNG/wiki Download - http://www.zope.org/Members/ajung/TextIndexNG/ Installation - The installation is described in the Wiki (see Documentation) Changes since RC1 * code cleanup * re-added wildcard search Contact - Andreas Jung, Email: andreas at andreas-jung.com

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EuroPython early bird rate ends may 31!
by Martijn Faassen 28 May '02

28 May '02

Hey Pythoneers and Zopistas, Friday may 31 (next friday!) is the last day you can register for the European Python and Zope conference at the lower early bird rate. After that the price goes up, so if you planning on coming, why not register now? So please register at: http://www.europython.org Regards, Martijn

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Simple User Folder Released!
by Chris Withers 27 May '02

27 May '02

NIP is pleased to announce the release of Simple User Folder 0.8.0. This is a User Folder replacement that will let you customise the source of users and roles for a particular folder or complete Zope instance. It is easily scriptable, subclassable and fully documented and tested. It can be downloaded from http://www.zope.org/Members/NIP/SimpleUserFolder cheers, Chris

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ANNOUNCE: Pound - reverse proxy and load balancer
by Robert Segall 25 May '02

25 May '02

For a long time I have been bothered by a few problems concerning the infrastructure around Zope: - load balancing: Zope/ZEO is a great combination, but load balancing between several servers on a heavily-loaded site is expensive (read: commercial, hardware-based boxes) or problematic (round-robin DNS may not be available to everybody and keeping sessions is iffy). - SSL: m2crypto is a nice package but I had a few problems with it. Apache mod_ssl/mod_proxy is great, but a bit overkill from my point of view. As a result I wrote Pound: it is a load balancer (it will distribute the load between several back-end servers, while keeping track of sessions) and an SSL wrapper (it accepts HTTPS requests, decrypts them and passes them as plain HTTP). For further information, download, etc. please see http://www.apsis.ch/pound The software is at version 0.1 - alpha quality. It works for me... Further testing (especially under heavy loads), improvements and bug (what bugs ?) fixes are welcome. Pound is distributed under the GPL. Enjoy and let me know how it works for you. -- Robert Segall Apsis GmbH Postfach, Uetikon am See, CH-8707 Tel: +41-1-920 4904

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Announcement; DirectoryStorage
by Toby Dickenson 24 May '02

24 May '02

Announcing the first release in nearly two years of DirectoryStorage - a ZODB storage which keeps its data in a directory containing many files; one file per revision per object. Current status: pre-alpha. I am not yet using this in production. This is the first release made by myself, based on the work started by Petru Paler Available from CVS from http://sourceforge.net/projects/dirstorage Features: * A ZODB Storage which uses one file per revision of an object. * A very simple file format. Your data is not locked away inside an unfamiliar, opaque database. * Use familiar filesystem tools for maintaining the database. For example: * Take an incremental backup using tar. * Make crucial persistent objects immutable using file permissions * Replication using rsync * Support for filesystems which are most efficient with many files in one directory (such as reiserfs), and also for filesystems which are not. * Support for filesystems with posix semantics. Support for win32 semantics requires a volunteer. * Robust transactions, using a journal. * Full.py: A storage which supports undo (but not versions, yet). It needs occasional packing to remove unreachable objects and old revisions of reachable objects (like FileStorage) * Minimal.py: A storage which does not support undo. Packing is needed to reclaim the space used by deleted objects. (packing not yet implemented) * Constant memory usage, even during packing. With the right fileystem I believe this makes DirectoryStorage the most scalable Storage available today. * Snapshot mode. After entering snapshot mode, the main database directory is a self-consistent, up to date, read-only snapshot of the storage state. Zope does not lose read/write access to the Storage; writes are spooled in a secondary directory. This is ideal for taking a backup of the database state without shutting down Zope. * Good redundancy of data. All object state (optionally) carries an md5 checksum. A storage checking tool is planned

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ANN: EuroPython 2002, June 26-28, Belgium
by Paul Everitt 22 May '02

22 May '02

European Python and Zope Conference 2002 Inaugural event for growing developer community in Europe Open source leaders to give keynotes June 26-28, 2002 Charleroi, Belgium http://www.europython.org CHARLEROI, MAY 22 - The EuroPython and Zope Conference 2002 announces the first major Python and Zope Conference in Europe, held June 26-28 in Charleroi, Belgium. With keynote speeches that include an original leader of open source, the creator of Python, and the architect of Zope, as well as major developer activities, the conference promises to be a breakthrough event for open software in Europe. Hundreds of new and experienced developers attending the conference will see a full program, including: o Keynote by Guido van Rossum, creator of Python o Keynote by Eric Raymond, an originator of the open source movement and active Python developer o Tutorials and development sessions by Jim Fulton, architect of Zope and Chief Technology Officer at Zope Corporation o State of the Zope talk by Paul Everitt, co-founder of Zope Corporation The conference program has over 30 presentations and tutorials in 7 tracks, including Python Language, Zope, Python In Science and Industry, Python In Business, Python Applications, and Web Services. Note that the Python Language track showcases Jython, the 100% pure Java implementation of the Python language. The program contains tutorials, presentations, lightning talks, and "birds of a feather" gatherings. Additional events include a "sprint" for building Zope 3, the next major version of Zope, as well as the first general member's meeting of the EuroZope Foundation and a meeting of the Python Business Forum. EuroPython 2002 will be held in Charleroi, Belgium, a city close to Brussels. Space is filling quickly, so early registration at the EuroPython website (http://www.europython.org) is encouraged. Student discounts are available. The EuroPython 2002 conference continues this year's series of open source developer events in Europe, including FOSDEM and LinuxTag, which each attracted thousands of attendees. Like these conferences, EuroPython 2002 is organized by a volunteer group of open source developers. **About Python** Python is a leading object-oriented open source programming language that runs on all modern platforms. By integrating ease-of-use, clarity in coding, enterprise application connectivity and rapid application design, Python is an ideal programming platform for todays IT challenges. More information, including the Python source code and binaries for Linux and Windows, are available at http://www.python.org. **About Jython** Jython is an implementation of the Python programming language written in 100% pure Java. It provides the flexibility and interactive scriptability of Python to the world of Java. More information, including the Jython source code and executables for all major Java Virtual Machines, is available at http://www.jython.org. **About Zope** Zope is a leading open source application server, specializing in content management, portals, and custom applications. Since Zope Corporation introduced Zope as an open source product in 1998, it has become the platform of choice for content publishers, managers and application developers. Zope comes with complete source code, most of which is written in Python. More information, including the Zope source code and binaries for Linux and Windows, are available at http://www.zope.org. Python, Jython and Zope are maintained and enhanced in open source fashion by an international community of programmers and companies. Contacts EuroPython Conference Team P3B c/o Aragne Boulevard Général Michel 1E B-6000 Charleroi. Conference Organization: mailto:europython@p3b.org International Contacts * Belgium * Denis Frère, mailto:denis@aragne.com, tel: +32(0)479.651.442 * Tom Deprez, mailto:tom@aragne.com, tel: +32(0)2.479.63.88 * France * Nicolas Chauvat, mailto:nicolas.chauvat@logilab.fr, tel: +33(0)1.45.32.03.12 * Germany * Marc-Andre Lémburg, mailto:mal@egenix.com, tel: +49(0)211.9304112 * Netherlands * Martijn Faassen, mailto:faassen@vet.uu.nl, tel: +31(0)10.243.7051 * United Kingdom * Andy Robinson, mailto:andy@reportlab.com , tel: +44(0)7976.355742 * Tim Couper, mailto:tim@2wave.net, tel: +44 (0)1582 463120

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[ANN] TextIndexNG 1.0RC1 released
by Andreas Jung 17 May '02

17 May '02

I am pleased to announce the first release candidate of TextIndexNG V 1.0. TextIndexNG is a pluggable index for the ZCatalog that enhances the full text indexing capabilities of Zope by providing the following features: * support for document converters (HTML, PDF, WinWord, PowerPoint, Postscript). Custom converters can be easily added * stemmer support for 12 languages * support for right truncation * similarity search (soundex, metaphone support) (for english) * NEAR search * phrase search * pluggable query parsers (two parsers included) * stop words support * new test tab for interactive testing * 2-3 times faster than Zopes TextIndex (more to come ;-) ) * compatible with ASCII, ISO-8859-1 Requirements: * Zope 2.5 or Zope CVS trunk checkout Documentation: * http://www.zope.org/Members/ajung/TextIndexNG/wiki/ Download: * http://www.zope.org/Members/ajung/TextIndexNG/ Installation: * The installation is described in the Wiki (see above) Changes since alpha 2: * added new PyQueryParser (implements the same query syntax as QueryParser but it is a native Python implementation that will run on all platforms and does no longer require flex/bison). The benefits are locale support and unicode support on the parser level. * deprecated and removed QueryParser module * fixed memory leak in C extension for lexicons * added support for right trunctation to CLLexicon * right truncation is now always enabled (Lexicons are now using BTrees only instead of optimal dictionaries for better performance) Contact: * Andreas Jung, Email: andreas at andreas-jung.com

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