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Zope 3 sprint at PyCon 2004
by Jim Fulton 27 Jan '04

27 Jan '04

I'm planning to host a Zope 3 sprint at PyCon 2004, http://www.python.org/pycon/dc2004/ There is room for sprinting March 20-23. Attending a Zope 3 sprint is a good way to: - Contribute to Zope 3 - Learn about Zope 3 development - Meet and work with Zope developers As an added bonus, PyCon sprints provide an opportunity to meet and interact with developers on other Python projects. To plan this sprint, I need to get an idea of who might participate. The schedule and tasks for the sprint will depend on participant's availability, skills and intereest. If there are participants who haven't worked on Zope 3 before, I will present an in-depth hands-on Zope 3 developemnt tutorial. Tasks will depend on participants interests. They can range from UI or application development, to refactoring, to documentation. If you are interested, please contact me as *soon as possible* and let me know: - What days you'd like to participage from the possible dates of March 20-23. - What your skill level is, either as a Zope or Python developer - If you know, what sorts of projects you'd be interested in working on. Jim -- Jim Fulton mailto:jim@zope.com Python Powered! CTO (540) 361-1714 http://www.python.org Zope Corporation http://www.zope.com http://www.zope.org

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[ANN] PloneCollectorNG 1.1.0 final released
by Andreas Jung 26 Jan '04

26 Jan '04

I am pleased to announce the release of PloneCollectorNG 1.1.0 final (PCNG) PCNG is a bugtracking system for Plone. It is based on the concepts and ideas of CMFCollector and CMFCollectorNG but it is a complete re-write. PCNG is a very generic and open framework (you can configure nearly everything TTW). This release **REQUIRES Archetypes AT 1.3**. **Older Archetypes versions (including 1.2.1) WILL NOT WORK**. This major step was necessary because a lot of Archetypes hacks in PCNG 1.0.0 were backported to Archetypes CVS/HEAD. Changes since 1.1.0 beta 3: - several minor unicode problems fixed especially in the migration script - minor UI tweaks - updated german catalog files Volunteers wanted: PloneCollectorNG is fully internationalized. If you want PCNG to support your language that translate the catalog file (i18n folder) to your language and submit it to me. Note: Any user should read doc/INSTALL.txt before the installation. Upgraders should reinstall the PCNG either through the quickinstall tool or through "Plone setup". If you are planning to work with the i18n support in PCNG: you *must* have the latest PlacelessTranslationService version from the OpenTAL CVS. Running a PTS version from the Plone Collective will *NOT WORK*. If you complain about problems related to issues that are covered by the INSTALL.txt you owe me a box good french white wine!!! Documentation Wiki: http://www.zope.org/Members/ajung/PloneCollectorNG Download: http://sourceforge.net/project/showfiles.php?group_id=55262&package_id=96051

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PyCon Reminder: Early bird reg deadline 2/1
by Guido van Rossum 26 Jan '04

26 Jan '04

Info ---- This is a reminder that the deadline for early bird registration for PyCon DC 2004 is February 1, 2004. Early bird registration is $175; after that, it will be $250 through March 17, then $300 at the door. (Note that a week ago I announced the wrong prices for non-early bird. :-) To register, visit: http://www.pycon.org/dc2004/register/ Plug ---- PyCon is the most important conference in the year for me. It brings together the largest group of Python users and developers imaginable. I come to PyCon for many reasons: to meet with other core Python developers face to face; to hear about the exciting things that users from all over the world are doing with Python; to interact in person with Python users of all types, from newbies to veterans of many years; to hear everybody's feedback on where Python is and where they'd like it to go; and perhaps most of all to continue to encourage this wonderful community by my presence, words and actions to grow, reach out to new users of all kinds, and keep listening to each other. I hope everyone who comes to the conference will return from it with a new or renewed feeling of excitement about Python, whether they are developers, sophisticated users, beginners, or even skeptical passers-by. The Python community includes everyone, from grade schoolers just learning about computer science to renowned scientists interested in using the best tools and business people looking for a secret weapon. I'm looking forward to seeing you all at PyCon! Background ---------- PyCon is a community-oriented conference targeting developers (both those using Python and those working on the Python project). It gives you 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. DC 2004 will be held March 24-26, 2004 in Washington, D.C. The keynote speaker is Mitch Kapor of the Open Source Applications Foundation (http://www.osafoundation.org/) There will be a four-day development sprint before the conference. We're looking for volunteers to help run PyCon. If you're interested, subscribe to http://mail.python.org/mailman/listinfo/pycon-organizers Don't miss any PyCon announcements! Subscribe to http://mail.python.org/mailman/listinfo/pycon-announce You can discuss PyCon with other interested people by subscribing to http://mail.python.org/mailman/listinfo/pycon-interest The central resource for PyCon DC 2004 is http://www.pycon.org/ --Guido van Rossum (home page: http://www.python.org/~guido/)

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ImageTag_CorePatch v.0.3
by Marc Lindahl 25 Jan '04

25 Jan '04

Available (once published) here: http://zope.org/Members/bowerymarc/ImageTag_CorePatch/0.3 Changes since last release: * Version 0.3 * added ANTIALIAS to thumbnail generation (needs PIL 1.1.3 or later) * convert image to RGBA (previously RGB) before thumbnail (preserve transparency) * based tag() code on Image version 1.148, with additional fields from Plones's imagePatch.py (args are tag(height, width, alt, scale, xscale, yscale, css_class, title, longdesc), and if border is not specified, then it's set to 0. Remove any other empty/unused attributes. * added method Image.pil_tag() with the exact same syntax as tag(), in case tag is further overridden (as Plone does, evidently) README: HotPatch Image.tag to use PIL to size images (useful for thumbnails). Also fixes so-called intelligent scaling to actually be intelligent. Here's an example of using the new thumb method directly: <img src="" tal:on-error="structure string:<img src='${img/absolute_url}' alt='${here/title}' align=${alignment} hspace=${hs} vspace=${vs} border=${brd}) />" tal:attributes="src string:${img/absolute_url}/thumb?width=100&imtype=PNG; align alignment; hspace hs; vspace vs; border brd"/> What that does is try to use thumb, and if it doesn't work fall back to rendering the image normally. It also shows usage of some of the extended properties. Since only width is specified the image will be proportionally resized (same applies for height only), and the imtype converts it to PING (check PIL docs, but the most useful types are JPEG, GIF, PNG), which preserves any transparency (alpha) the image might have. Here's an example of using tag with PIL resizing: <span tal:replace="structure python:img.tag(width=200) /> or <span tal:replace="structure python:img.pil_tag(width=200) /> Note that this patch adds 'pil_tag' which you can test for if you're not sure tag() has been re-patched (evidently Plone does this)

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MailBoxer 3.0 released
by Maik Jablonski 25 Jan '04

25 Jan '04

Hi to all, I'm happy to announce a new major release of MailBoxer - the mailinglist- / newsletter- / mailarchive-framework for Zope. Many things changed in MailBoxer 3.0 - here are the most important ones: * added new universal hooks (getter/setter) for easily integrating MailBoxer into your applications or frameworks * added a sender-loop-limitation; fixed (hopefully) all outstanding issues with mailloops * added a mail-serialisation in order to avoid Read-Conflicts in heavy-duty-setups * improved archive-search * many bugfixes and cleanups... My special thanks goes to Richard Waid who contributed several patches for running MailBoxer in very large environments. Thank you, Richard! Hope to meet you at EuroPython this year. Where can I download MailBoxer 3.0? ----------------------------------- http://zope.org/Members/mjablonski/MailBoxer/ Please read the UPDATE.txt before updating MailBoxer... Where can I see all changes? ---------------------------- http://zope.org/Members/mjablonski/MailBoxer/CHANGES Where can I see a working MailBoxer? ------------------------------------ MailBoxer runs all mailinglists (+ a gateway for a newsserver) for the German Zope User Group (DZUG) (~ 20 lists with 400 hundred people subscribed and ~ 100 mails / day). If you want to have a look at the zope(a)zope.org-list mirrored by MailBoxer, visit DZUG: http://www.dzug.org/mailinglisten/zope-org-zope/ Keep zoped, Maik Jablonski

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[ANN] PathIndexNG 0.1 released
by Andreas Jung 24 Jan '04

24 Jan '04

I am pleased to announce the very first release of PathIndexNG 0.1 (PING). PING is though as an efficient replacement of the standard PathIndex which is slow and inefficient. The PING implementation offers (only) a very basic prefix search for object paths which is sufficient in most cases. It does not neither 'or' nor 'and' as operator and there is no 'level' parameter like in the existing PathIndex. So you can't search for objects by subpath. All queries are prefix search (means the query starts at the root element). Download: http://www.zope.org/Members/ajung/PathIndexNG Installation: Unpack it like any other Zope product in your Products folder and restart Zope

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Silva 0.9.3 released!
by Martijn Faassen 23 Jan '04

23 Jan '04

Hi everybody, Last week, Infrae has released Silva 0.9.3, a new major release of the Silva CMS. Silva is a (Zope based) web application for content authoring, management and publication - for web, paper, and other media. Content is stored in clean and future-proof formats, independent of layout and presentation, suitable for use in multiple contexts. Silva can also be connected to Word using DocMa: http://www.zope.org/Members/infrae/DocmaWindowsInstaller Silva is completely open source, coming under the very liberal BSD license. Silva 0.9.3 is a major release of Silva. It comes with a large list of changes and bugfixes, including a new Ghost Folder, container title revisions, importing assets from zip files, link object, improved parsing of markup in the Silva structured editor, ip-range based groups, new viewer roles, improved external source mechanism with parameters and caching (to be released separately), improved unit test framework, and numerous improvements and bugfixes. Development-wise it marks start of a changeover from mixins to using Zope3-style adapters. See the HISTORY file for more information about the changes: http://www.zope.org/Members/infrae/Silva/HISTORY.txt Please download the Silva-0.9.3-all.tgz tarball for easy installation, here: http://zope.org/Members/infrae/Silva/Silva-0.9.3/Silva-0.9.3-all.tgz Unpack it into your products directory, add a 'Silva Root' object to your Zope and go to the edit screens by clicking /edit in the Silva root. Due to changes in the content structure this version will not work with existing Silva content without upgrading using the built-in upgrade script. See the included INSTALL.txt and UPGRADE.txt for detailed instructions, here: http://www.zope.org/Members/infrae/Silva/INSTALL.txt http://www.zope.org/Members/infrae/Silva/UPGRADE.txt More information: http://www.infrae.com http://www.zope.org/Members/infrae/Silva Regards, Martijn

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ANN: eGenix mxODBC Zope Database Adapter 1.0.8
by mal 23 Jan '04

23 Jan '04

________________________________________________________________________ ANNOUNCEMENT EGENIX.COM mxODBC Zope Database Adapter Version 1.0.8 Available for Zope 2.3 through 2.7 on Windows, Linux, Solaris and FreeBSD ________________________________________________________________________ INTRODUCTION The eGenix mxODBC Zope Database Adapter (Zope DA) allows you to easily connect your Zope installation to just about any database backend on the market today, giving you the reliability of the commercially supported eGenix.com product mxODBC and the flexibility of the ODBC standard as middle-tier architecture. Unlike Zope's ZODBC Zope DA, the mxODBC Zope DA works on Windows XP/NT/2000/98, Linux, Solaris and FreeBSD using the same interface on all platforms. The mxODBC Zope DA implements high performance thread-safe connection pooling and multiple physical connects per logical Zope connection. You can safely run Z SQL Methods in parallel, achieving a much better throughput than ZODBC Zope DA or similar Zope database adapters under heavy load. This makes it ideal for deployment in ZEO Clusters and Zope hosting environments where stability and high performance are a top priority. ________________________________________________________________________ FEATURES * Zope Level 3 Database Adapter: the mxODBC Zope DA is fully multi-threaded and can handle multiple connections to multiple databases. * Fully compatible to Z SQL Methods. * Drop-in compatible to the ZODBC DA: the mxODBC Zope DA provides the same interfaces as Zope's ZODBC DA to allow a smooth upgrade path from this simplistic adapater to the high performance mxODBC Zope DA. * Fully compatible to the Znolk SQL Wizard Product and other similar products relying on the common database schema access methods .tables() and .columns(). * Connection Pooling: physical database connections are pooled and kept open, to reduce the connection overhead to a minimum. This is especially important for high latency database connections and ones like Oracle which take a considerable amount of time to setup * Parallel Execution of Queries on a single logical connection: the mxODBC Zope DA can manage any number of physical connections on a single logical connection. This enables running truly parallel Z SQL Method queries -- a feature not available in other Zope DAs. * Robust Mode of Operation: connections which have timed out or go away due to network problems are automatically reconnected. * Cross-platform Connection Objects: The Zope DA will automatically choose the right platform specific ODBC manager for you. * Per Connection Adjustable ODBC Interface: mxODBC comes with many different subpackages to choose from on Unix. The Zope DA allows you to select these subpackages on a per-connection basis. * Per Connection Error Handling: you can tell each connection whether it should report ODBC warnings or not; furthermore all warnings and errors are made available as list .messages on the DatabaseConnection object. * Transaction safe automatic reconnect: when the DA finds that a connection has timed out, it automatically tries a reconnect and replays the transaction on the connection (unlike other DAs which break the transaction scheme by doing a reconnect without replay). * Built-in Schema Cache: this results in improved performance under heavy load. * Database Schema Access: all ODBC catalog methods are made available for much better database schema inquiry. The catalog methods allow building generic database interrogation or manipulation tools and facilitates writing database independent Zope products. * Lazy Connect: the mxODBC Zope DA only connects to the database backends when a connection is actually requested. This results in a better use of resources compared to other Zope DAs. ________________________________________________________________________ NEWS Version 1.0.8 includes the following changes and enhancements: * Zope 2.7.0 and Python 2.3 are fully supported on all platforms: Windows, Linux, Solaris and FreeBSD. * You can let the mxODBC Zope DA return empty strings instead of None for SQL NULL values. This should simplify porting existing applications to the mxODBC Zope DA. * The included mxODBC 2.1 provides full Unicode support if accessed directly. Using e.g. the EasySoft ODBC-ODBC bridge this allows you to connect to any remote Unicode aware ODBC backend from any of the supported platforms. In short: mxODBC Zope DA is continuing to become the number one solution for integrating relational databases with Zope applications. ________________________________________________________________________ UPGRADING If you have already bought mxODBC Zope DA licenses, you can use these license for the updated version as well. There is no need to buy new licenses. The same is true for evaluation license users. ________________________________________________________________________ MORE INFORMATION For more information on the mxODBC Zope DA, licensing and download instructions, please visit our web-site: http://zope.egenix.com/ You can buy mxODBC Zope DA licenses online from the eGenix.com shop at: http://shop.egenix.com/ ________________________________________________________________________ Thank you, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Jan 23 2004) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ ::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,FreeBSD for free ! ::::

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PyCon price schedule correction
by Guido van Rossum 22 Jan '04

22 Jan '04

In my previous announcement, I wrote: > This is a reminder that the deadline for early bird registration for > PyCon DC 2004 is February 1, 2004. Early bird registration is $175; > after that, it will be $200 through March 17, then $250 at the door. Unfortunately this gave a too rose-colored view on the not-so-early registration fees. The correct price schedule is: - Early bird (through Feb 1) $175 - Normal reg (until March 17) $250 <-- correction! - Walk-ins $300 <-- correction! To register, visit: http://www.pycon.org/dc2004/register/ I urge everybody coming to the conference to register ASAP -- save yourself or your employer $75!!! You have until February 1st. --Guido van Rossum (home page: http://www.python.org/~guido/)

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ZODB 3.2.1c1 and 3.1.5c1 released
by Jeremy Hylton 21 Jan '04

21 Jan '04

We have made release candidates for ZODB 3.2.1 and 3.1.5. These releases fix a bug in FileStorage pack that can cause data loss if you pack to a time earlier than a previous pack time. The ZODB 3.2.1 release also fixes several ZEO bugs. These releases correspond to the Zope 2.7.0 and 2.6.4 releases made on Monday. We expect to make final ZODB releases at the same time as the final Zope releases. You can find the releases at the usual places. See http://www.zope.org/Wikis/ZODB. What is ZODB? The Zope Object Database (ZODB) provides an object-oriented database for Python that provides a high-degree of transparency. Applications can take advantage of object database features with few, if any, changes to application logic. ZODB includes features such as a pluggable storage interface, rich transaction support, and undo. Jeremy

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