November 2002 - Zope

Returning generated gif via __getattr__
by maxm 25 Nov '02

25 Nov '02

I have a gif image that I would like to return via a __getattr__ method. But I have no clues as to how I can do it. img_data # binary image data # The problem below is that it needs a docstring to get published. def __getattr__(self, attr): if attr = 'gif_image': return img_data # and if I write: def gif_image(self): "docstring" return img_data The browser does not recognise the mime type. Does anybody else have a clue as to what I need to do? regards Max M

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Re: Localizer
by Juan David Ibáñez Palomar 25 Nov '02

25 Nov '02

> Hi, > How can I remove a message from the message_catalog? Do you mean an instance of the MessageCatalog meta type? Just go to the management screens of the instance, select the message and click the button "Delete" that is at the bottom of the page. > ${top}top doesn't even exist anymore > when I try to export my catalog I've got a Keyerror > the message error and the value error > are ${top}top and are a link > http://127.0.0.1:8080/"javascript:window.scrollTo(0,0)/" !!! I don't understand this error report, send me the whole traceback. > I've notice too that half of the times, I can't access to the catalog for a > pack error size reason > there are quite a lot of literature on the net about this last error > meanwhile I read that the use of the version of Localizer 0.92 with Zope > 2.6 prevented these problems > I don't remember, it must be my bad memory. Send me the traceback. > I must admit that I once play with poedit .. I could read that I'm not > alone... > > > Hi, > > I have encountered a problem with .mo files created with poEdit. > > It seams that poEdit creates .mo files containing null characters. > > I'm not sure if this is disallowed or if it's a bug in poEdit. > > After examining the gettext.py in Python, it opens .mo files binary, > > so this should be considered a bug in Localizer. > > Should I send the patch or can I get developer access Localizer and I'll > > commit it my self? > > (My sourceforge id is: johanc) > > DIFF: > > It's in row 58 of LocalFiles.py > > > > - f = open(filename) > > + f = open(filename, 'rb') > > I couldn't find any other files opening .mo files, but I might have > > missed it. > > Regards, > > Johan Carlsson > > It's pity that the LocalFiles.py is still not corrected, if it has to be ... It is fixed, in the CVS, though I haven't released 0.9.3 yet > I can try out on my local server, but what will happen when I migrate? (and > would it save my translations?) > It will happen the same than with any other Zope object, you export and import it, that's all. > danielle By the way, you will receive better support if you use the Localizer mailing list. I am subscribed to the zope mailing list in digest mode, I could easily miss messages about Localizer in this mailing list. Best regards, -- J. David Ibáñez, http://www.j-david.net Software Engineer / Ingénieur Logiciel / Ingeniero de Software

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(no subject)
by Eva Rådahl 25 Nov '02

25 Nov '02

for my fantastic doughter Emma Rådahl to be Lucia (old tradition in Sweden on the 13th of december) of the town Uppsala in Sweden. You can vote for her if you go to www.unt.se/lucia and click on rösta (wich means vote) under the name Emma Rådahl (the last day to vote is 27 nov.) You can also lissen to her describing herself, but it is in Swedish. You can se 2 larger oicture of her if you go to <http://erlboden.cjb.net/> http://erlboden.cjb.net and a popup come up. Ther will also be lin to the site were you can vote. Thank you /Emmas mother.

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My Zope is leaking memory ...
by Jean-Francois.Doyon＠CCRS.NRCan.gc.ca 25 Nov '02

25 Nov '02

Hello, Yup, that's right, my Zope is leaking memory, and so far, I've had no luck figuring out where it might come from. I run a Zope 2.5.0 on RedHat 7.3. I started by looking into the Python/C type modules, which I fugred are most likely to be causing this. I upgraded Psycopg to the latest version, but it's still occuring. I also use the PIL, but it is seldom used, and could not be the cause of the kind of leakage I'm seeing. Then there's a much more obscure thing, which is a SWIG interface to PROJ.4 (A geographical projection library) ... I had the author look at it, and no leaks were detected in the C library, or using the SWIG interface (Using Valgrind I beleive). My Z SQL Methods do NOT cache results (Maximum time set 0). I'm using a custom built (with default configuration) Python 2.1.3 ... The symptom: I run Zope with -t 6 due to the site being very busy. There's 1GB of RAM. When I first start Zope, it the memory of the process running running the threads is around 10% (as shown in "ps"). Here, now after 4 days 19 hours up: root 943 0.0 0.1 5024 1456 ? S Nov20 0:00 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D nobody 946 0.8 40.4 470040 417420 ? S Nov20 60:26 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D nobody 950 0.0 40.4 470040 417420 ? S Nov20 0:03 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D nobody 951 3.8 40.4 470040 417420 ? S Nov20 266:02 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D nobody 952 3.8 40.4 470040 417420 ? S Nov20 264:41 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D nobody 953 3.7 40.4 470040 417420 ? S Nov20 262:58 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D nobody 954 3.8 40.4 470040 417420 ? S Nov20 267:13 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D nobody 955 4.3 40.4 470040 417420 ? S Nov20 299:51 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D nobody 956 3.8 40.4 470040 417420 ? S Nov20 265:31 /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 -w 8080 -p - -f - -D Memory usage is at 40.4 percent ... In another 4 days, it will have reached almost 60%, and I will restart it ... Basically, after a week, it gets to be too much. As far as ZODB Caching, here are my numbers right now: Total objects in DB: 44786 Total objects in all caches: 30290 (This is peak actually, it varies between 26K and 30K depending on time of day). Target size: 5000 Max time: 300 When packed my Data.fs is under 100Mb ... The memory keeps growing regardless of the caching going on with the database, so that's not the issue. The site takes millions of this ever week ... So now I'm running out of ideas to try and track this down, I was hoping it would be the PROJ interface/library ... But apparently not (Even then the leakage would probably be much smaller than what we're seeing here). Does anyone know how I might go about tracking this down further? I know of the Medusa monitor thing, but I wouldn't know the first thing on how to start using that to track memory usage, if it is even possible. Right now I'm wondering about the PostgreSQL usage ... It is the only thing that has intensive enough usage to leak this much memory I think ... Any ideas, comments, insights, tips would be MOST appreciated! Thanks in advance, Jean-François Doyon Internet Service Development and Systems Support GeoAccess Division Canada Center for Remote Sensing Natural Resources Canada http://atlas.gc.ca Phone: (613) 992-4902 Fax: (613) 947-2410

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recursive iteration in External Method
by Elena Schulz 25 Nov '02

25 Nov '02

Hi, I'have got a problem with recursive iteration through all subfolders in an External Method. My pc gets out of system-resources doing the following iteration. Does anybody see a problem why this don't stop properly? I have no clue ... -- many thanks for your replies, Elena def sendObject(self, object, objPath): # do something with no effect on iteration return def iterateObjects(self, object, objectPath, basePathLevel, destPath): if object.meta_type == 'Folder': objectPath = destPath + '/' + '/'.join(object.absolute_url().split('/')[basePathLevel-1:]) for child in object.objectValues(): if not (hasattr(child, 'noUpload') and child.noUpload): sendObject(self, child, objectPath) iterateObjects(self, child, objectPath, basePathLevel, destPath) return def uploadObjects(self, ids, destPath, addSubfolder): for objectId in ids: object = getattr(self, objectId) sendObject(self, object, destPath) objectPath = destPath + '/' + objectId if addSubfolder: basePathLevel = len(object.absolute_url().split('/')) iterateObjects(self, object, objectPath, basePathLevel, destPath) return

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RE: [Zope] My Zope is leaking memory ...
by Jean-Francois.Doyon＠CCRS.NRCan.gc.ca 25 Nov '02

25 Nov '02

Charlie, Thanks for pointing this out! I'm not sure though ... Now that you mention it though, when I look in the Debug page, the one object type that has a delta WAY above the others is the DateTime.DateTime.DateTime object ... I'll try to keep a look at the toprefcount to see if it grows abnormally ... And I will keep an eye out for the Acquisition.ImplicitAcquirerWrapper counts and delta's to see if there's anything weird going on there ... Heh, in the time I've been typing this, the Delta for the DateTime is 9014 !!! The top refcount for it is 44618 now ... I allways thought these high numbers were to be expected, since something like DateTime gets used a lot I presume. The top refcount for Acquisition.ImplicitAcquirerWrapper is 56 ... I'm starting to look at upgrading to 2.6, but we're not there just yet, I have to learn a couple more things about writing your own products and CMF portal types first :) Thanks for the tips! J.F. -----Original Message----- From: Charlie Reiman [mailto:creiman@kefta.com] Sent: Monday, November 25, 2002 2:05 PM To: Jean-Francois.Doyon(a)CCRS.NRCan.gc.ca; zope(a)zope.org Subject: RE: [Zope] My Zope is leaking memory ... > -----Original Message----- > From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of > Jean-Francois.Doyon(a)CCRS.NRCan.gc.ca > Sent: Monday, November 25, 2002 10:57 AM > To: zope(a)zope.org > Subject: [Zope] My Zope is leaking memory ... > > > Hello, > > Yup, that's right, my Zope is leaking memory, and so far, I've had no luck > figuring out where it might come from. I run a Zope 2.5.0 on RedHat 7.3. > > I started by looking into the Python/C type modules, which I > fugred are most > likely to be causing this. I upgraded Psycopg to the latest version, but > it's still occuring. I also use the PIL, but it is seldom used, and could > not be the cause of the kind of leakage I'm seeing. Then there's > a much more > obscure thing, which is a SWIG interface to PROJ.4 (A geographical > projection library) ... I had the author look at it, and no leaks were > detected in the C library, or using the SWIG interface (Using Valgrind I > beleive). My Z SQL Methods do NOT cache results (Maximum time set 0). > > I'm using a custom built (with default configuration) Python 2.1.3 ... > > The symptom: I run Zope with -t 6 due to the site being very busy. There's > 1GB of RAM. When I first start Zope, it the memory of the process running > running the threads is around 10% (as shown in "ps"). Here, now > after 4 days > 19 hours up: > > root 943 0.0 0.1 5024 1456 ? S Nov20 0:00 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > nobody 946 0.8 40.4 470040 417420 ? S Nov20 60:26 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > nobody 950 0.0 40.4 470040 417420 ? S Nov20 0:03 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > nobody 951 3.8 40.4 470040 417420 ? S Nov20 266:02 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > nobody 952 3.8 40.4 470040 417420 ? S Nov20 264:41 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > nobody 953 3.7 40.4 470040 417420 ? S Nov20 262:58 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > nobody 954 3.8 40.4 470040 417420 ? S Nov20 267:13 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > nobody 955 4.3 40.4 470040 417420 ? S Nov20 299:51 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > nobody 956 3.8 40.4 470040 417420 ? S Nov20 265:31 > /usr/local/bin/python2.1 /usr/local/Zope-2.5.0/z2.py -a 132.156.10.87 -t 6 > -w 8080 -p - -f - -D > > Memory usage is at 40.4 percent ... > > In another 4 days, it will have reached almost 60%, and I will restart it > ... Basically, after a week, it gets to be too much. > > As far as ZODB Caching, here are my numbers right now: > > Total objects in DB: 44786 > Total objects in all caches: 30290 (This is peak actually, it > varies between > 26K and 30K depending on time of day). > Target size: 5000 > Max time: 300 > > When packed my Data.fs is under 100Mb ... > > The memory keeps growing regardless of the caching going on with the > database, so that's not the issue. > > The site takes millions of this ever week ... > > So now I'm running out of ideas to try and track this down, I was > hoping it > would be the PROJ interface/library ... But apparently not (Even then the > leakage would probably be much smaller than what we're seeing here). > > Does anyone know how I might go about tracking this down further? > I know of > the Medusa monitor thing, but I wouldn't know the first thing on how to > start using that to track memory usage, if it is even possible. > > Right now I'm wondering about the PostgreSQL usage ... It is the > only thing > that has intensive enough usage to leak this much memory I think ... > > Any ideas, comments, insights, tips would be MOST appreciated! > > Thanks in advance, > > Jean-François Doyon > Internet Service Development and Systems Support > GeoAccess Division > Canada Center for Remote Sensing > Natural Resources Canada > http://atlas.gc.ca > Phone: (613) 992-4902 > Fax: (613) 947-2410 Look under Control Panel:Debug. There is a display of current object allocations. You can refresh to see deltas. There a good chance you are exercising a known Zope bug: http://collector.zope.org/Zope/421 This is fixed in 2.6 and there a patch for 2.5.1 on the collector issue.

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RE: [Zope] DCOracle2 broken due to inability to map library
by Meilicke, Scott 25 Nov '02

25 Nov '02

I was able to connect to an 8.0.6 db by installing the 8i client on my zope server, then installing DCOracle2. I'm running on NT4, zope 2.4.2. Scott -----Original Message----- From: Webmaster [mailto:Webmaster@luton.ac.uk] Sent: Monday, November 25, 2002 11:20 AM To: zope(a)zope.org Subject: [Zope] DCOracle2 broken due to inability to map library We are trying to implement DCOracle2 (ZOracleDA seemed to require too many other products to get it to work) and keeps triping up on the inability to map library libclntsh.so.8.0 Has anyone had success connecting to an Oracle DB from zope? If so how did *you* do it, and are there any obvious mistakes we are making. (apart from the obvious one of trying to connect to an Oracle DB in the first place). Are there any other product we can use? _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev ) The information contained in this email message may be privileged and is confidential information intended only for the use of the recipient or any employee or agent responsible for delivering it to the intended recipient. Any unauthorized use, distribution or copying of this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify the sender immediately and destroy the original message and all attachments from your electronic files.

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question about products
by Juan.Garcia.Arboleya＠esa.int 25 Nov '02

25 Nov '02

Hi everybody, I am writing a zope product (first time) and I would like to know if it is possible to test it without running Zope. The reason for this is because when there are mistakes Zope cannot compile the Python code and gives me the messages in the console, but I am running windows (it is not my choice) and I cannot redirect it to a file, and those errors get lost when scrolling the rest of the messages. Therefore, I would like to check the syntax errors before running Zope. The runtime errors present no problem because they can be later checked from the Zope environment. If anyone knows how to do it, I really would appreciate it. Thank you Juan.

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Method with Dot in the name
by Thomas Guettler 25 Nov '02

25 Nov '02

Hi! Up to now I server some files in my Python Product with a URL like .../download?file=foo.doc. It would be much better if the URL would be .../foo.doc Does someone know how this could be done? The files are from the filesystem of the server. They are not in the ZODB. thomas -- Thomas Guettler <guettli(a)thomas-guettler.de> http://www.thomas-guettler.de

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Calling ZSQL Method programatically
by Antonio Beamud Montero 25 Nov '02

25 Nov '02

Hi all: I need a method returns more than 1000 tuples in a result, but I want to change it programatically. I have modified the SQL.max_rows_ variable to my value (1000000), and it works, but oddly this value returns to its default value... How I can change this behaviour? Thanks -- Microsoft merges technologies: Windows CE + Windows ME + Windows NT = Windows CEMENT ---- Antonio Beamud Montero Agora Systems S.A. http://www.agoratechnologies.com

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