March 2007 - Zope - Zope lists

[Zope] Re: [Zope-Annce] Zope 2.8.9, Zope 2.9.7, Zope 2.10.3 released
by Tres Seaver 27 Mar '07

27 Mar '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Marc Balmer wrote: > Andreas Jung wrote: > >> I uploaded corrected versions of the Zope 2.9.7 and 2.10.3 tar-balls. >> The tar-balls released yesterday contained a bug that caused >> a startup failure when using "zopectl start". > > don't do this again. Don't do what? I was about to agree, as I don't think re-releasing under the same version number was correct: the new releases should be 2.9.7.1, 2.10.3.1, or something similary (or bump to 2.9.8, 2.10.4). > this bug is so obvious to catch that I have some serious doubts about > your software testing process. are you releasing totally untested code? > can we trust your releases in the future, will you change sth in your > process? The testing that gets done is not done from "released" tarballs, but from subversion checkouts. This was a bug in the process that created the tarball from a checkout, and not in the underlying Zope software itself. I *think* it also affected only those who build and install Zope as root, although I can't tell for sure, since the tarballs have been replaced. At any rate, I *never* build, install, or run Zope as root, and hence would never have noticed the problem, even if I were doing the releases myself. > Releasing software as a security fix that does not even start makes you > look like a moron, I am sorry to say. Too harsh. Certainly nobody likes having released a "brown bagger", but mistakes do happen. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 tseaver(a)palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGCDHa+gerLs4ltQ4RAqHbAJ9UvloqzCCj9NrCaGSeYZDfZduaJwCdFH5l ydlyxzoHGP7aNnVjG1IJClU= =6vHA -----END PGP SIGNATURE-----

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bin/zopectl start not working for Zope 2.9.7
by Maurits van Rees 26 Mar '07

26 Mar '07

Hi, Maybe I just need a hit with a cluebat here. But I just downloaded the new Zope 2.9.7 tar ball (thanks Andreas and others who worked on that!). When I try bin/runzope or bin/zopectl fg or debug everything looks fine. But bin/zopectl start does nothing. Has anyone else seen this? I did the usual dance of ./configure, make, (sudo) make install. The configure options were: ./configure --with-python=/usr/bin/python --prefix=/opt/zope/zope2.9.7 Then I made a zope instance in ~/instances/t /opt/zope/zope2.9.7/bin/mkzopeinstance.py Then start the zope instance: ~/instances/t $ bin/zopectl start . daemon process started, pid=15466 Then nothing seems to happen. No log file is being made: ~/instances/t $ tail -f /home/maurits/instances/t/log/event.log tail: cannot open `/home/maurits/instances/t/log/event.log' for reading: No such file or directory tail: no files remaining There is one process running: $ pgrep -lf zope 15465 /usr/bin/python /opt/zope/zope2.9.7/lib/python/zdaemon/zdrun.py -S /opt/zope/zope2.9.7/lib/python/Zope2/Startup/zopeschema.xml -b 10 -d -s /home/maurits/instances/t/var/zopectlsock -x 0,2 -z /home/maurits/instances/t /home/maurits/instances/t/bin/runzope and after a while that stops. bin/zopectl fg meanwhile starts up zope just fine. An alternative is to run 'make inplace' and 'make instance' instead of 'make install'. Okay, so I removed the instance, unpacked a clean tar ball and did configure, make, make inplace, make instance. Again, bin/zopectl start does not work, and foreground works fine. I also just downloaded 2.8.9. Let's first check if that might have the same problem. Ah, it at least has another problem: $ /opt/zope/zope2.8.9/bin/mkzopeinstance.py ... [Errno 13] Permission denied: './README.txt' and indeed: $ ls -l /opt/zope/zope2.8.9/skel/README.txt -rw------- 1 root root 481 2007-03-25 11:33 /opt/zope/zope2.8.9/skel/README.txt Ah, and when fixing this with a chmod some more errors like that creep up. So after installing 2.8.9 as root or with sudo, mkzopeinstance does not work. This has happened to me with other Zope versions as well. At least I remember reporting this earlier; and seeing it solved fortunately. :) It would seem the root source has not been found/fixed though. :( Any chance of fixing this? Need any help Andrea? -- Maurits van Rees | http://maurits.vanrees.org/ [NL] Work | http://zestsoftware.nl/ "Do not worry about your difficulties in computers, I can assure you mine are still greater."

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presenting content in Zope generated outside
by Alan 26 Mar '07

26 Mar '07

Dears List-mates, I have a program that process some data analysis and it's able to generate html docs to be visualised in a web browser. What I am trying to figure out is a way of wrapping this external html docs inside Zope/Plone. Trying to explain it better: I would like to present such data analysis results (and for that I can play with its code in order to generate just the <body> block for example) as if it were part of our plone website, i.e. using our website's layout with its header and side columns etc. That external data (and html doc) is accessible via LocalFS among others reasons because they are big and temporary. I am aware of importing html via FTP or webdav or even considering to code a python external method to generate the data analysis results independently of my external program, but I guess these approach involves using a lot of ZODB resources, besides processing time, that frankly I would like to avoid. Accessing data via LocalFS or similar and just turn them presentable inside a zope website seems to be the natural way, but I am missing how to do it. I thought about using frames, but it sounds even worse. BTW, is Zope able to work with frames? Another possibility I imagined was if I could fill my external html files with '<!-- @import ...' inside e.g. <head> block, but I really don't know how far I can go with that idea, since my first tests showed me that it can works for font style (*.css files) but then I don't know what else to do, for example, to get the side menu and calendar. Anyway, any commentary here would be very appreciated. Sorry if I couldn't express me better but I am prone to extend any point here if you wish. I thank very much in advance any help. Cheers, Alan

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[German Zope Conference] Reminder: Call for Papers open
by Andreas Jung 26 Mar '07

26 Mar '07

Dear Zope Community, the eighth Zope conference organized by the German Zope User Group (DZUG) will be held this year at the Potsdam Institute for Climate Impact Research from 4. to 5 June 2007 (near Berlin). The topic of the conference will be Zope in sciences. Proposals for talks and workshops can be submitted until 01.04.2007 http://www.zope.de/redaktion/dzug/tagung/potsdam-2007/dzug-conference-2007-… or http://www.zope.de/redaktion/dzug/tagung/potsdam-2007/dzug-conference-2007-… Both German and English proposals are highly welcome. You can find further information about the Zope conference here: http://www.zope.de/8-dzug-tagung Regards, Andreas Jung Assistant Chairman DZUG e.V.

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ZCatalog len problem
by Jonathan 26 Mar '07

26 Mar '07

I have a ZCatalog and in the ZMI 'Catalog' tab it reports: The catalog "Catalog" contains 1,820 record(s) in the path "/". There is a fieldIndex called 'id' and it has 1842 entries (ZMI -> Catalog -> Indexes tab) The following python script: sRes = context.Contacts.Catalog() print 'len(sRes)= ', len(sRes) cnt=0 for aRec in sRes: cnt+=1 print 'cnt= ', cnt return printed Returns: len(sRes)= 1820 cnt= 1842 There are 1842 data records, so there should be 1842 entries in the ZCatalog. It looks like the __len__ method in Catalog.py is not returning the correct value - it returns self._length() which is set by the following method (also in Catalog.py): def migrate__len__(self): """ migration of old __len__ magic for Zope 2.8 """ if not hasattr(self, '_length'): n = self.__dict__['__len__']() del self.__dict__['__len__'] self._length = BTrees.Length.Length(n) I really don't understand this level of Zope magic, so it is possible that I am not looking in the right place, so any and all ideas/comments/suggestions are appreciated! Jonathan Zope 2.9.4 Python 2.4.3 Red Hat Linux 3.2.3-56

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Understanding LeakFinder output
by Marco Bizzarri 24 Mar '07

24 Mar '07

Hi all. I'm using LeakFinder product in order to hunt some memory leaks in my application. Before I can do that, however, I need support in order to understand the output of LeakFinder itself. I'm posting here a snippet of example code I'm using to understand. def createInterface(self, interface_id, *p, **kw): if "test_folder_XXX" in self.objectIds(): test_folder_XXX = getattr(self, "test_folder_XXX") self._delObject("test_folder_XXX") del test_folder_XXX self.manage_addFolder("test_folder_XXX") The snippet is silly, but I'm using it to test. Now, I run Zope (2.7.8), and run 1000 invocations of this code from an external client (using urlopen). Then, I take a look at LeakFinder: Class References Change from reference sample Persistence.PersistentMapping 3559 0 OFS.Folder.Folder 1817 0 Now, according to what I can understand, there are 1817 references. This is strange to me, since I've removed the folder object, and then I've actually deleted the object. Of course, there is something which is not clear to me. I would be grateful if someone can clarify the subject. Regards Marco -- Marco Bizzarri http://iliveinpisa.blogspot.com/

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V iewlet in rotterdam?
by Derek Richardson 24 Mar '07

24 Mar '07

Zope 3.3 I want to add a viewlet to the rotterdam skin. I don't want to create my own skin. is there an accepted way of doing this? I'm surprised that the left sidebar in rotterdam doesn't appear to have a viewlet manager. I have been unable to find any declarations in zcml (grepped for viewletManager through the entire zope source, didn't see anything relevant). It looks like rotterdam makes do with macros, instead of using viewlets. Is there a reason for this? Seems like the left sidebar is perfect for a manager, with a viewlet for navigation and another for the add menu. I am writing a syndication (web feeds: Atom, RSS, etc) package for zope and want to plug my viewlet for accessing feed links directly into rotterdam. Perhaps this isn't the way to do it, but it seems to me that a package like mine that provides general functionality shouldn't define its own skin, but should be usable in other skins. Am I wrong? Thanks, Derek

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How can I reset zope time???
by flem 24 Mar '07

24 Mar '07

Through a zwiki a spammer proxied some information though a zope server using zwiki's comments (be aware!). The spammer had dated his ip-packets 11/12-2007. And all my changes got the same date! So, I couldn't shrink all the undo actions though the database shrinker (later I found out that should just use -300). To get rid of 10 GB of undo history, I changed the computers time to 12/12-2007 and then undoed and gave the computer the right time again. Fine! But, now, not only have all my changes the date 12/12-2007 in the undo history, every object I have changed gets this date as well! Apparently, zope won't accept to go backward in time. How do I reset the zope's time? DateTime().Date() gives the right time. Flemming

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Attribute error
by Catherine E. Reinehr 23 Mar '07

23 Mar '07

Hi, I'm pretty new to Zope; I inherited the system when I started my new job. We use it to manage a college web site. I noticed yesterday that several pages in our "Student Services" section will no longer load. Every time I try, I get this: Error Type: AttributeError Error Value: visible And I have no idea what it means or how to fix it. Any suggestions would be much appreciated. Thanks, Catherine ----- Webmaster & Publications Designer Huntingdon College 1500 E. Fairview Ave. Montgomery, AL 36106 (334) 833-4429 / Flowers 103

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Re: [Zope] context.user at ImplPython.py
by Martijn Pieters 23 Mar '07

23 Mar '07

Please keep the mailing list in the loop, others may have insights too. On 23. mar. 2007, at 15.37, Garito wrote: >> > If you read the link I put, you could read I can create (with >> > CrearFuncionalidad) but not delete it (with BorrarFuncionalidad) >> that seems >> > to have the same security necessities >> >> Return a callable from your traverser (so return the __call__, don't >> call it yourself). The publisher will call it for you after the user >> has been authenticated. > > As Dieter said __bobo_traverse__ can't return strings or ints for > that I create (as he tall me, thanks again) a wrapper that returns > the rendered code Fine, that's what I ment. But your wrapper should implement a __call__ method. The publisher will call that method at a time where security *has* been set up. Do make sure that you wrap your wrapper in the correct security context though: class Wrapper(Acquisition.Implicit): def __call__(self): # Things that need a security context need to be done here. return getSecurityManager().getAuthenticatedUser().getId() class SomeItem(SimpleItem): def __bobo_traverse__(self, REQUEST, name): if name == 'Wrapper': return Wrapper().__of__(self) else: return getattr(self, name) This way the security policies can still look up the security context. -- Martijn Pieters

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