- Zope-Announce - Zope lists

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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CFP: Final call for Zope track presentations at EuroPython 2002
by Paul Everitt 17 May '02

17 May '02

Final call for Zope track presentations at EuroPython 2002: http://www.europython.org/ The Zope track has most of the slots filled with exciting talks by familiar names from the Zope community. But there are still several slots available! If you have something important to say, EuroPython 2002 wants to hear from you. Send a title and abstract to Tom Deprez (tom(a)aragne.com) or Paul Everitt (paul(a)zope.com) the Zope track champions. EuroPython 2002 is the important event for Python and Zope users in Europe. Held June 26-28 in Charelroi, Belgium, the conference anticipates hundreds of attendees and an agenda packed with tutorials, presentations, lightning talks, a sprint, and birds-of-a-feather meetings. *** Early registration is open !!! *** *** https://secure.zope.nl/europython/Registration *** ESR, Guido, Jim, Zope 3. Enough said. I hope we will all see you in Charleroi! Interested? Have a look at www.europython.org for more information. --Paul

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ExternalEditor 0.2 Released
by Casey Duncan 16 May '02

16 May '02

Thanks for everybody who sent feedback on version 0.1, which works pretty well so long as you don't try to uninstall it. I suggest anyone you installed version 0.1 to download and install 0.2 which should alleviate this problem. If you want to uninstall version 0.1, extract the 0.2 tarball into your Products directory and restart Zope first. Then you can uninstall it by removing the product directory. Sorry if this caused anyone inconvenience. Download at: http://www.zope.org/Members/Caseman/ExternalEditor -Casey

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[ANN] WebsiteLoadTest 0.22 released
by Andreas Jung 16 May '02

16 May '02

WebsiteLoadTest is a suite of tools to record and replay webtraffic. The suite is build on a client-server architecture were a set of distributed "replay clients" retrieve portions of data to be replayed to a real webserver. A central "replay server" maintains the data to be replayed and controls all registered clients. A "replay shell" is used as interactive interface to control the "replay server". Download it from: http://www.zope.org/Members/ajung/WebsiteLoadTest --------------------------------------------------------------------- - 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] WebDAVLogger 0.21 released
by Andreas Jung 16 May '02

16 May '02

WebDAVLogger is a monkey-patch product for Zope to intercept any WebDAV related HTTP traffic for analyzing purposes between a Zope instance and a WebDAV client. This release is a maintenance release and fixes some problems with Zope File objects. Download it from: http://www.zope.org/Members/ajung/WebDAVLogger/ --------------------------------------------------------------------- - 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] HTTPMounter 0.10 released
by Andreas Jung 16 May '02

16 May '02

HTTPMounter 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 --------------------------------------------------------------------- - 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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