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by IT_ORAPOST 24 Oct '99

24 Oct '99

The included message could not be delivered to the following invalid mail names. Please verify these names and try them again. Bad name: lcochetti

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Re: [Zope-dev] PTK Model
by Andrew Lahser 24 Oct '99

24 Oct '99

Michel Pelletier wrote: > The objects that PTK come with are stock objects, most of which will be > 'ports' of the existing zope site objects. They will change in minor > ways, ie, they will use MFI, their interfaces will be more consistent, > and their behavior will be analyzed (hopefully by all of you!) to see if > they can be made more useful. Are you planning on having MFI or PortalObjects subclassable by ZClasses? ZClasses that subclass PortalObjects might participate in the PTK system (create, review, reject or publish & catalog) without creating a product. Will there be a SQL Method interface for storing PTK objects in a RDBMS? Or will PTK objects only be storable in the ZODB? > A familiar rhythm I'm looking for is 1) release an alpha, 2) someone > points out a problem, 3) that person, using the model, describes exactly > how they think it should work. This doesn't mean you have to be a > modeler, but you should be able to look at UML and at least be able to > say "Class such-and-such defines this method, I think the method should > return X". In fact, this doesn't even need UML, you can do this from > the source. The model is to make it easer for us all the grasp the big > picture. For those of us that use OD, it would be useful to browse or update your model directly in OD, would you consider releasing the full model rather than the HTML export? Andrew Lahser

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Creating Products in Python
by gtk 24 Oct '99

24 Oct '99

Okay, I've ripped apart the source for multiple products and I *still* can't figure out how the hell to code a basic Product that implements an item that can be managed by Zope. I've stopped the tracebacks from occurring, but the item never appears under "managed items". What's the "hello world" of Zope Products implemented in Python? What's the best way of forcing a product to reload? Deleting it, adding it again and restarting Zope is becoming somewhat tedious. Regards, Garth. -- <gtk(a)well.com>

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Getting an object from its name
by Cayce Ullman 23 Oct '99

23 Oct '99

You were close < showImage2: < <img src="<dtml-var img>"> < <dtml-var "_[img].title"> Try this : <dtml-var "_['img'].title"> Cayce ===== __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

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DCOracle - Oracle8i - Again [Q]
by zope＠infosys.com.ar 23 Oct '99

23 Oct '99

Hi! I managed to compile DCOracle with Oracle 8i on my Sparc. I took some comments made to the list to month ago... But now I am having a diferent trouble. After compiling I want to test the DCOracle and I am getting the following error with the 'python DCOracle_test.py user/pass@sid' command: Traceback (innermost last): File "DCOracle_test.py", line 1, in ? import Buffer, oci_, sys ImportError: ld.so.1: python: fatal: relocation error: file ./oci_.so: symbol nnfyboot: referenced symbol not found Any help will be appreciated. TIA /B Bruno

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Conditional variable setting
by John Goerzen 23 Oct '99

23 Oct '99

Hi, I need to be able to conditionally set some text. Here is my existing code. What I'd prefer to be able to do is avoid both the dtml-with and the REQUEST.set. I hope I can at least avoid the latter. Can you tell me how? I cannot figure out how to add on to the existing string -- there seems to be no concatenate option and <dtml-call "displaytext = displaytext + 'blah'"> only gives an error. Thanks! <dtml-with "_.namespace(displaytext='Here, you can find information on upcoming ACLUG events. There is always time for Q&A -- drop by with a list of questions if you want!')"> <dtml-if mode-calendar> <dtml-call "REQUEST.set('displaytext2', displaytext)"> <dtml-else> <dtml-call "REQUEST.set('displaytext2', displaytext + 'Hint: for a nicer interface, click on Calendar!')"> </dtml-if> -- John Goerzen Linux, Unix consulting & programming jgoerzen(a)complete.org | Developer, Debian GNU/Linux (Free powerful OS upgrade) www.debian.org | ----------------------------------------------------------------------------+ The 588,331st digit of pi is 6.

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how to block until an image is done uploading?
by Roman Milner 23 Oct '99

23 Oct '99

Hello. I've got some code (I've included the code below) that lets the user upload an image. It then store the image twice - one in its normal form and the other as a thumbnail (generated via PIL). The problem is, when the image is large I sometimes get errors. The problem, I think, is that when I retrieve the data from the image in order to thumbnailize it all of the data is not available yet and PIL throws an IOError saying the image is truncated. Small images work fine. I did a print of len(image_data) and it is smaller than it should be. However, eventually all of the data must become available because the non thumbnail image show up just fine. So, can anyone say if I have diagnosed the problem right and if so how can I force things to wait until the upload is finished? I've tried just using a sleep, but that didn't work. No matter how long the sleep, I still get the error. Thanks, ^Roman def make_pictures(self, pic_folder, id, file): pic_folder.manage_addImage(id + '_thumbnail', file, id + '_thumbnail') pic_folder.manage_addImage(id, file, id) self._thumbnailize(getattr(pic_folder, id + '_thumbnail')) def _thumbnailize(self, imgOBJ): #try: out = StringIO.StringIO() inn = StringIO.StringIO(imgOBJ.data) # for some reason imgOBJ.data does not contain all of the # image data yet print len(imgOBJ.data) im = PIL.Image.open(inn) im.thumbnail((128,128)) im.save(out, im.format) imgOBJ.update_data(out.getvalue()) #except IOError: imgOBJ.update_data('') #return 1

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RE: [Zope] displaying headlines
by Ian Blenke 23 Oct '99

23 Oct '99

I'm doing this on Wizdom with Squishdot (0.1.5, so YMMV): http://wizdom.blenke.com/ There are a few Code examples as well: http://home.blenke.com:10080/Wizdom/Code This is not an incredibly fast site (although it is on a dual-celery 500). It's not something I consider "production" ready yet :) I'm willing to work with anyone that wants to take a stab at decoding slashdot's "slashdot.xml" format - ultramode.txt isn't going to last forever. - Ian C. Blenke <icblenke(a)2c2.com> <ian(a)blenke.com> -----Original Message----- From: kedai [mailto:kdie@kedai.com.my] Sent: Saturday, October 23, 1999 12:53 AM To: Tim Wilson Cc: zope(a)zope.org Subject: Re: [Zope] displaying headlines On Fri, Oct 22, 1999 at 10:48:34PM -0500, Tim Wilson wrote: > Hi everyone, > > Has anyone developed a product that allows you to display current > headlines from AP, CNN, or some other source on a Zope site? If not, does > anyone know of a news source that makes its headlines available in some > easily parsable form so that I can do it myself? One of our two local > papers (Minneapolis Star Tribune) gave me permission to do it, but I would > have to dig them out of their homepage. I'd appreciate any ideas anyone > would like to share. > > -Tim there was an ext method for slashdot. try zope.org:8080 i am also interested in doing this but sadly i am no master in python. i think we can grab data using ZClient. the only thing is parsing the data. how can we parse the fetched data thru dtml? is it even possible? _______________________________________________ Zope maillist - Zope(a)zope.org http://www.zope.org/mailman/listinfo/zope (Related lists - please, no cross posts or HTML encoding! To receive general Zope announcements, see: http://www.zope.org/mailman/listinfo/zope-announce For developer-specific issues, zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

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Zope and BSDI 4.0 compile failure
by R. David Murray 23 Oct '99

23 Oct '99

I'm trying to install Zope on a BSDI 4.0 machine running Python 1.5.2. When I compile, I get lots of "undefined reference to" error messages and the compile stops. Looking at the FAQ page there is a reference to adding -rdynamic to the LDSHARED variable in the Makefile.pre.in files. This makes no sense to me, since as far as I can see when the make -f Makefile.pre.in boot is done the file referenced is the existing Makefile in the <pythonlib>/config directory, and so changes to LDSHARED in the distributed Makefile.pre.in files should have no effect on the install. I tried it anyway but it didn't seem to make any difference to the 'python w_pcgi.py' run. So I tried adding -rdynamic to the <pythonlib>/config/Makefile LDSHARED, and that didn't work either. I got: ld -rdynamic ExtensionClass.o -o ExtensionClass.so ld: no input files Since according to the ld man page -r doesn't take an argument and -rdynamic isn't a valid argument, I'm not quite sure what is going on. So I tried just -r (make the compiled module relocatable; sounds reasonable), and that got the compile to complete. However, now when I run ./start, I get: /usr/local/bin/python: '/usr/local/src/zope/Zope-2.0.1-src/lib/python/ExtensionClass.so' is not an ELF executable for 386/486 No big surprise there either. I tried -Bdynamic. No go there either. I also tried the -k, but the modules don't get made so I get an error that they are missing when I try to start zope. So, am I missing something obvious, or does anyone know what combination of options I need to get this thing to compile properly? Is it something new about BSDI 4.0 vs 3.0 that is causing this problem? It *looks* like a problem with python's config support for dynamic modules under BSDI, but I couldn't find anything on the Python website or list archives, and obviously I don't know enough about python modules or Unix linking to figure this out. --RDM

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Re: [Zope] How quickly does zope respond.
by Bill Anderson 23 Oct '99

23 Oct '99

Jason Cunliffe wrote: > > I am wondering how fast zope responds for others, and what tips you have to > improve regular performance (hardware, software, config). > > When you start with a fresh Zope install, how many seconds (from mouse > click) does it take: > > 1. To boot Zope > 2. To enter the manage interface > 2. To open index_html > 3. To save the changes > 4. To View this > 5. Ditto for image uploads (say with 8K, 32K, and 64k Jpegs) > > What's your best? I haven't tried a clean install yet, but using ramdisk (as noted in another thread) I have acheived a 6 second load time with a 4MB Data.fs file. IMO, I don't think you can get better than this, due to python overhead in loading (though I will try a clean Data.fs just to see :-). > What's your worst? ~45 second load time on the 133 with 3 others running, and a Data.fs of around 3MB. a 45MB Data.fs loading in ~12 seconds on the dual 450s. For making changes as above, it is pretty much as fast as the bandwidth allows IME. Busier sites will, of course, increase them somewhat, though for simple changes as such, I would not expect much increase (zope.org tends to get a bit slow ... but their server is reportedly pretty hammered). > Can you suggest an approach to build in this kind of local-action > performance checking via a DTML method which uses timestamps comparison. > For example a method which I can toggle on and off at different levels of > the hierarchy to create a history file of certain actions. Does this > already exist? > > I've am testing Zope on two 'minimal platform PCs to check performance I > can expect for clients in an upcoming project who I know will _not_ have > the latest and best systems. My two current 'test' machines are: > > 1. P5-150Mhz,64Mb, Win95b > 2. P233mhzmmx, 32mb, Win95b -laptop > > I've been experimenting with these in 3 ways: with Zope local to each > machine, over a small ethernet LAN and remote over 56k modem to hosted Zope > site (codeit). In a word: RAM. Sort of increasing processor speed, more memory is your better option. I have seen Zope use upwards of around 30-40 MB+ at times. For Database loading speed, it is kind of a trick. You only use it when loading and packing the database (AFAIK). The larger the site, and hence Data.fs, the more important it is. Then again, the more important memory becomes. Not trying to start an OS war, but: In the above machine examples, you would getter better performance by running Linux on the server, as it would allow you to avoid the overhead of a graphics system, use less memory, and more efficiently manage the memory you have. But this is generally true of servers, graphic systems by nature increase the memory needed. When you have a quarter gig of memory ona screaming machine, it is less of an issue, but in the examples you cited, a graphical interface taking up all or half of your ram is definitely an issue. On my p133, performance is definitely respectable, even though I am running 4 Zservers and squid over a DSL connection. As the sites get larger (or I can afford to) I will be replacing it with a much faster dual cpu system. I currently run two on dual pIIs w/256M and peformance is outstanding. Thus, I would say that it is hardware limitations in my case, not Zope itsself. I think many people tend to go overboard in their expectations. Zope is a dynamic appserver, not a static file server over http. Many people try to compare the two, and I do not consider it a valid comparison. It is like saying that a stripped-down-for-racing 'stock car' can be copared to the same 'model' of car on the street for speed. FWIW, I tried the LocalFS product, and it served up local files at a significant speed improvement, thus illustrating my point. In fact, I am contemplating the use of the LocalFS product for the basically static pages that I have on some sites to take advantage of this. That will have to wait for some testing though. :-) Hope that helps, Bill -- "They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown." -- Carl Sagan

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