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buildbot failure in Zope branches 2.9 2.4 Linux zc-buildbot
by buildbot＠zope.com 29 Sep '06

29 Sep '06

The Buildbot has detected a failed build of Zope branches 2.9 2.4 Linux zc-buildbot. Buildbot URL: http://buildbot.zope.org/ Build Reason: changes Build Source Stamp: 7923 Blamelist: andreasjung,baijum,ctheune,dobe,faassen,fdrake,gintautasm,hdima,jim,jinty,jukart,mkerrin,opetznick,poster,regebro,romanofski,srichter,tseaver,wosc,yuppie,yusei BUILD FAILED: failed test sincerely, -The Buildbot

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wsgi/paste pipelines in Zope 2 or 3?
by Brad Clements 28 Sep '06

28 Sep '06

I've been doing a lot of work with Paste in the past year, cutting down on my deployments of Zope. Now I'm taking a new look at Zope 3 and Zope 2, and wondering if it's possible to use paste pipeline/filter in either version of Zope. I've looked at http://cheeseshop.python.org/pypi/zope.paste and http://awkly.org/archive/zopepaste-wsgi-applications-in-zope-3-using-pasted… But what I need is not just a wsgi application hosted in Zope, but rather, a wsgi filter that can intercept the call chain during traversal. Has anyone else encountered this need or have thoughts about it? Thanks (ps, I have something like xslfilter, but using wsgi and libxml2 and also an XSL version of TAL/METAL that I'd like to use in Zope) -- Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com AOL-IM or SKYPE: BKClements

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Distributed Object Use Case for Zope 3 developers.
by Christopher Lozinski 28 Sep '06

28 Sep '06

Martijn Faasen makes the point that it is important for the Zope 3 developers to have good use cases. So here we go. Here is my distributed Object use case for Zope 3 developers. Can I do this in Zope 3? I run a job board for each technology. I have one job board for zope/plone developers, and another one for Linux System Administrators. Right now I have quite low traffic, and I run all my job boards off of one zope instance. But if this should ever be a hit, I can imagine running one zope instance per job board, or even multiple zope instances for one job board using zeo on its own server. The available parallelism is quite strong in Zope 2. Now here is the problem. Say one of you is both a Linux Admin and a Zope/Plone developer. Right now you would have to post your resume twice on two different job boards. If you changed your resume, you would have to change it in two different servers. Sometime soon, I hope that you will be able to just apply once. You would fill out the Zope skills question box, and the Linux Administrator skills question box, and the server will automagically create copies of your record on both job boards. If those are on separate servers, then that is a distributed migration of objects. When you return to edit your data and update your resume, that information needs to be propogated to the other job board on the other server as well. I hope that is a helpful use case for the Zope 3 developers. Of course maybe things are done totally differently in Zope 3 than in Zope 2. Here is another distributed use case, which I do admit is more speculative. Performance reasons might encourage me to have one server in the US, and one in India. Reportedly Google localization takes into account where the server is located. So if I want to compete globally in the US and India, I would want my Indian candidate objects to migrate to my Indian server, and my US candidate objects to migrate to my US server. I think I could do this with ZClasses. Can I do it with Zope 3? I hope that helps. Chris

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ZClass Maintenance
by Christopher Lozinski 28 Sep '06

28 Sep '06

Andreas Jung wrote: >ZClasses deserve a maintainer or a budget to fund a maintainer - otherwise they will remain what they are: a >3rd-class citizen of Zope. I have looked at the code, but I am not quite sure what it takes to maintain it. The core problem is that I do not understand how the underlying zope is changing, so I am not quite sure what is breaking. I guess this is not my highest priority right now. The other problem is that I do not really understand the reasons behind the original design of ZClasses. Jim Fulton has offered to navigate me through this process, but I have not yet taken him up on the offer. I am waiting until I am sufficiently motivated to do something about it before bothering him. It always seems that someone else is more motivated than I am, so I have not yet had to do anything. It would be very interesting to know how many hours of work it would take to bring ZClasses up to date on the current release of Zope 2. Then I could hand it off to my favorite offshore developer. Part of me is interested in doing it myself. Then I would understand the whole stack under ZClasses. Better yet, I should show up the Plone conference, where I should be able to find someone to answer my questions. >ZClasses don't get better from writing long postings. Ah, yes but I can write much faster than I can code. What am I doing on this list!?! All I have to do is to motivate someone else to do the work! Chris

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In Defense of ZClasses
by Christopher Lozinski 28 Sep '06

28 Sep '06

At the risk of going down in history (and Google Searches) as the man who supports ZClasses, I think that someone deserves to come to their defense. I think that there is a different tool for every job. Sometimes I think Plone is the best solution, sometimes Zope 2 is the best solution. Sometimes Zope 3is the best solution, and sometimes ZClasses are the best solution. When are ZClasses the best solution? Frequently a ZClass is the fastest way to build an application. I can put up a simple list of types in ZClasses and DTML so incredibly quickly. Frankly developing a file system based python application is just way too much overhead for bringing up simple web applications quickly. In fact I have pushed ZClasses pretty far. If you are building an application, and you are a single developer, and you are comfortable with a tree based data model, then ZClasses is probably still your fastest development tool. I was recently told that ZClasses now work with Zope 2.8.* Maybe it was 2.9.* Frankly I am not smart enough to understand the recent evolution of the Zope framework. But I suspect that ZClasses can be made to work for a while more on top of the newest releases of Zope, and that is good enough for me. Someone will be motivated enough to make it work, and I will take advantage of the resulting open source code. I also think that there is a bright future for ZClasses, in the niches that I am interested in. Many years ago, I used to use versions to develop production and development code on a single server. I was in heaven. It was so easy. It was so productive. Then came zcatalogs and all of that broke. Pretty soon, I think someone, maybe even me, will be motivated enough to make ZClasses work with MVCC. Multivalued Concurrency Control, so that we can get rid of our development servers, and as a single developer just run a simple cheap development/production server. Life will be great. But I see a brighter future for ZClasses as well. The demand for my services is booming. I have way more business than I can handle. Someone recently did a search for a plone resume on Google, and I got 6 of the top placements. We have heard of search engine optimization, but this is just crazy good. Of course managing a staff of recruiters is the hardest part. So soon I will need to run multiple servers with data being shared among them. I will need a distributed schema, where people enter their resumes on one job board, and have them distributed to several other job boards. Zope 3 has a single server schema, but I have no idea if I will be able to expand it to a distributed Schema. With Zope 2, and ZClasses, it is very clear to me how I can build a distributed schema that moves classes around between servers. Most of the work is already done for me, another huge chunk, the schema part, I have done. So I think Zclasses serve my needs wonderfully. And I think that I can upgrade them with MVCC to make a single developer even more productive. And I think that I can build powerful distributed applications on top of them. That will be so much easier than trying to build and move python code on the file system and restarting dozens of servers. And it only takes a few of us using ZClasses, and making money off them to keep ZClasses quite alive. So I hope that this defense of ZClasses encourages you not to abandon them. Use whichever tool is best for your application, and trust that others will make the same wise decisions. Flame Shield is now up. I look forward to your replies. Regards Chris

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buildbot failure in Zope branches 2.10 2.4 Windows 2000 zc-bbwin2
by buildbot＠zope.com 28 Sep '06

28 Sep '06

The Buildbot has detected a failed build of Zope branches 2.10 2.4 Windows 2000 zc-bbwin2. Buildbot URL: http://buildbot.zope.org/ Build Reason: changes Build Source Stamp: 7900 Blamelist: andreasjung,baijum,ctheune,dobe,faassen,fdrake,gintautasm,hdima,jim,jukart,mkerrin,opetznick,poster,srichter,wosc BUILD FAILED: failed compile sincerely, -The Buildbot

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buildbot failure in Zope branches 2.10 2.4 Linux zc-buildbot
by buildbot＠zope.com 28 Sep '06

28 Sep '06

The Buildbot has detected a failed build of Zope branches 2.10 2.4 Linux zc-buildbot. Buildbot URL: http://buildbot.zope.org/ Build Reason: changes Build Source Stamp: 7900 Blamelist: andreasjung,baijum,ctheune,dobe,faassen,fdrake,gintautasm,hdima,jim,jukart,mkerrin,opetznick,poster,srichter,wosc BUILD FAILED: failed test sincerely, -The Buildbot

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buildbot failure in Zope trunk 2.4 Windows 2000 zc-bbwin6
by buildbot＠zope.com 28 Sep '06

28 Sep '06

The Buildbot has detected a failed build of Zope trunk 2.4 Windows 2000 zc-bbwin6. Buildbot URL: http://buildbot.zope.org/ Build Reason: changes Build Source Stamp: 7897 Blamelist: andreasjung,baijum,ctheune,dobe,faassen,fdrake,gintautasm,hdima,jim,jinty,jukart,mkerrin,opetznick,poster,regebro,srichter,tseaver,wosc,yuppie BUILD FAILED: failed compile sincerely, -The Buildbot

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buildbot failure in Zope trunk 2.4 Linux zc-buildbot
by buildbot＠zope.com 28 Sep '06

28 Sep '06

The Buildbot has detected a failed build of Zope trunk 2.4 Linux zc-buildbot. Buildbot URL: http://buildbot.zope.org/ Build Reason: changes Build Source Stamp: 7897 Blamelist: andreasjung,baijum,ctheune,dobe,faassen,fdrake,gintautasm,hdima,jim,jinty,jukart,mkerrin,opetznick,poster,regebro,srichter,tseaver,wosc,yuppie BUILD FAILED: failed test sincerely, -The Buildbot

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Zope 2.9.5 coming soon
by Andreas Jung 27 Sep '06

27 Sep '06

FYI: Zope 2.9.5 will be released this weekend. Cheers, Andreas -- ZOPYX Ltd. & Co. KG - Charlottenstr. 37/1 - 72070 Tübingen - Germany Web: www.zopyx.com - Email: info(a)zopyx.com - Phone +49 - 7071 - 793376 E-Publishing, Python, Zope & Plone development, Consulting

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