March 2000 - Zope - Zope lists

How do I test a version without saving changes?
by Jason Wong 30 Mar '00

30 Mar '00

Hope this is not too stupid a question: How do I test a version without saving changes? When I use the view option from within the management interface I only get to see the 'live' (ie public) version and not the version that I'm working on. thanks - Jason Wong Digital View Ltd 2201 Nanyang Plaza 57 Hung To Road Kwun Tong HONG KONG Tel: +852-2861-3615 Fax: +852-2520-2987 www.digitalview.com

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Zope Weekly News in French
by FR Chalaoux 30 Mar '00

30 Mar '00

Hi All, ZF is happy to announce the born of "Zope Weekly News in French" : Actualités Zopiennes Heddomadaires (AZH) http://www.zope-france.org/ressources/azh/ FRC

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Re: [Zope] Zope and memory usage
by Tres Seaver 30 Mar '00

30 Mar '00

Tony McDonald <tony.mcdonald(a)ncl.ac.uk> > I just ./stop and ./start'ed two Zope servers that were taking up > rather a lot of memory; > > PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND > 841 nnle 12 33 0 395M 318M sleep 177:24 0.00% python > 834 nnle 9 23 0 531M 14M sleep 101:20 0.00% python > > Is there any way of telling what objects are taking up this memory - > could it be a memory leak in Zope at all? I'm using src-2.1.3 on > Solaris because I still use the /REQUEST hint to see what my > variables are. Replying only to the last sentence: Add a DTMLMethod in the root of your Zope (call it maybe "debug_request"), with the following body: <dtml-var standard_html_header> <dtml-var REQUEST> <dtml-var standard_html_footer> This works fine on 2.1.4+ -- they only suppress the "direct traversal" of REQUEST. Tres. -- ========================================================= Tres Seaver tseaver(a)digicool.com tseaver(a)palladion.com

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Re: [Zope] calling methods for each object in a list
by Rik Hoekstra 30 Mar '00

30 Mar '00

>Philipp Dunkel schrieb: >[...] >> >> when I do a >> >> <dtml-in ids> >> <dtml-var sequence-item> >> </dtml-in> >> >> it prints out the ids of the checked objects fine, >> but when I try a >> >> <dtml-in ids> >> <dtml-call "sequence-item.foo"> >> </dtml-in> >> >> he doesn't know sequence-item anymore > >No, Zope can't, especially Python can't, because it trys to evaluate >something like sequence - item.foo. > >So try > ><dtml-with sequence-item> > <dtml-call "foo"> ></dtml-with > >or: > ><dtml-call "_.['sequence-item'].foo"> > Hm. In the example <dtml-in list> <dtml-var foo> </dtml-in> the iteration will change the namespace to that of each sequence-item automatically. So the foo asked for will always be the foo of the current sequence-item. Things like <with sequence-item> or "_['sequence-item']..." are not necessary. If you iteration is by a number of IDs, as your question suggests, though, the example is not enough. When you iterate over a list of IDs, the sequence-item will be an ID (that is a string) and foo will have no meaning (it will throw an AttributeError). There are two way of remediating this: preferrably use objectValues(), like so <dtml-in objectValues> <dtml-var foo> </dtml-in> If you _have_ to use a list of ids, things get more complicated <dtml-in Ids> <dtml-var "_.getitem(_['sequence-item'].foo)"> </dtml-in> (sorry about that) All code is untested, but it should work. Rik

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quick os question
by David Eleuterius 30 Mar '00

30 Mar '00

Can an application be developed in one os/installation of Zope and be exported, then imported into a different os and installation of Zope? DE ------------------------------------------------------------- David Eleuterius | Design & Development Bowman Internet Systems 318.213.8780 x3192 http://www.bowmansystems.com/ -------------------------------------------------------------

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Re: [Zope] quick os question
by Rik Hoekstra 30 Mar '00

30 Mar '00

-----Original Message----- From: David Eleuterius <david(a)bowmansystems.com> To: zope(a)zope.org <zope(a)zope.org> Date: donderdag 30 maart 2000 22:12 Subject: [Zope] quick os question >Can an application be developed in one os/installation of Zope and be >exported, then imported into a different os and installation of Zope? > Quick answer, generally: yes Rik

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] Re: [Zope] Zope in Jpython
by Jerry Spicklemire 30 Mar '00

30 Mar '00

J. Atwood wrote: <snip> >I do think, though, that performance and benchmarking should be an >issues on the tips of DC tongues. Though I haven't seen any clear statement to confirm this, I believe this is a very large part of DC's decision to release ZEO. By enabling Zope clusters ZEO addresses pragmatically several limitations inherent in the curent state of Zope / Python. As a side effect, redundancy brings with it answers to concerns regarding reliablility, of hardware, if not Zope itself, in a mission critical setting. While some may see throwing hardware at performance / reliability needs, as inelegant at best, to others with hopes of rolling Zope out for the long term, this seems like a perfectly reasonable solution. Python and Zope will continue to improve, and all Zope users will benefit. For now, leveraging commodity priced hardware is actually about as elegant as it gets. So, DC has heard and answered, and Zope is the better for it!

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TIME OUT
by Daniel G. Rusch 30 Mar '00

30 Mar '00

On occassion our visitors will get a timeout when trying to perform a query that is rather large. Is there a way of adjusting the timeout? Or is there something else we can look at doing? DR

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Re: [Zope] External Method 3
by Rik Hoekstra 30 Mar '00

30 Mar '00

-----Original Message----- From: Tom Deprez <tom.deprez(a)uz.kuleuven.ac.be> To: Rik Hoekstra <rik.hoekstra(a)inghist.nl> Date: donderdag 30 maart 2000 16:14 Subject: Re: [Zope] External Method 3 >Hi Rik, > >>I was blabbering last time about hasattr. The right solution is of course: >> >>def recursiveMethod(self, obj, result): >> if hasattr(obj, aq_parent): >> result.append(obj.title) >> recursiveMethod(self, obj.aq_parent, result) >> return result > >mmm, what does hasattr()? Does it checks if an obj as a certain property >(eg aq_parent)? yes, only in pythonish these are called attributes. >Unfortunately it seems not to work. Hm, I tested it. It works for me. Can you tell me where it doesn't work and in what way? Does it fail. Is there a traceback? Remember it will still bail out (with an AttributeError) if the object has no attribute title! > >I found another way to check if it has parents : > >split(obj.absolute_url(),'/')[3:-1] != [] > >--> this works, but I think your solution is nicer, only it should work and >I don't know why it doesn't. any more details? Rik

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Re: [Zope] Zope hosting
by Tres Seaver 30 Mar '00

30 Mar '00

Marco Mariani <m.mariani(a)imola.nettuno.it> wrote: > > Hallo! I'm thinking about using zope to develop some sites. > > May you please advise me about a Zope hoster? > I've looked at those listed on zope.org, but some of them offer > just 20MB or have most of the site written in german. > One of them I can't even reach, others don't mention zope on > their pages, or are a bit on the pricey side. > > I need a flexible, expandable solution. I may need 40MB and two > domains for a start, and more in the future. I have to install > my products and use pgsql or mysql. I am happily using CodeIt. They offer several options above "basic" Zope hosting: * Install your own products (this is their "professional" option). * Add disk space cheaply (they quoted me $0.50/month for each added 10 Mb). * Add domains, mapping them to separate Zope folders, for $10/mo each. > Shell access is welcome, too.. They don't offer shell access -- I FTP products, export files, etc., into a "home directory" with a slightly oddball layout. > Do you have some suggestion? > Which ISPs do you think are best? > > - OR - > > Do you think I'd better install zope as a normal user, on one of > those cheap ISPs that give me 500MB ? Zope wants to be a long-running process, with significant CPU and RAM requirements; most ISPs don't appreciate you running such a beast, so ask first. Tres. -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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