May 2010 - Zope - Zope lists

Zope Control Panel extension
by Encolpe Degoute 17 May '10

17 May '10

Hello, I found a collateral damage of the suppression of ZClasses in Zope 2.12: eggs that try to add a new item in the Zope Control Panel can do it but they disappear after the initialization phase. Three eggs are concerned: - collective.monkeypatcherpanel (pure Zope2) - Products.PlacelessTranslationService (mainly Plone) - WingDBG (Zope 2 ans Plone) They all use the same code : http://svn.plone.org/svn/collective/collective.monkeypatcherpanel/trunk/col… Is there a method to add item in the Zope Control Panel without set enable-product-installation to 'on' ? Regards, Encolpe DEGOUTE -- Si ca ne marche pas du premier coup, appelez-le version 1.0.

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Dependent ZCA utility registration ?
by Peter Sabaini 12 May '10

12 May '10

I have trouble registering utilities which depend on the presence of other utilities; eg. I have a package A where I want to register utility B which depends on registration of utility C. I tried to register B by putting registration in the __init__.py of A, which fails because at import time C is not yet registered. Registration by subscribing to the utility registration event handler for C also failed, because by the time the handler gets called, the utility C is not yet installed. My current workaround involves registration upon the IDatabaseOpen event, which is doubly ugly because Zope 2.10 doesnt send that event out of the box -- I send it in a monkey-patched Zope2.App.startup module. What is the canonical way to do this? Thanks, peter.

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installation zope on windows 7
by henk laloli 11 May '10

11 May '10

I have tried to install the latest zope 2.12.5 on windows 7 (64 bit). Ran the zope egg. Made a zope instance with mkzopeinstance. One needs to disable the user accounts settings (run command uac and set slider to null) otherwise the service will not install. Still after this Zope will not start: there is no PID file present. After starting the Zope process immediately dies. So what could be the cause? Henk This is the error message: The instance's SvcRun() method failed Traceback (most recent call last): File "C:\Python26\lib\site-packages\win32\lib\win32serviceutil.py", line 806, in SvcRun self.SvcDoRun() File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\nt_svcutils\service.py", line 115, in SvcDoRun self.stop(pid) File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\nt_svcutils\service.py", line 277, in stop open(self.getReg('pid_filename',keyname='PythonClass')).read() IOError: (2, 'No such file or directory', 'C:\\Users\\henk\\zope\\var\\Z2.pid') There is also a warning: Zope-2034764167 (Zope instance at C:\Users\henk\zope): Process terminated with exit code 1. Traceback (most recent call last): File "C:\Python26\Scripts\runzope-script.py", line 8, in <module> load_entry_point('Zope2==2.12.5', 'console_scripts', 'runzope')() File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\Zope2\Startup\run.py", line 21, in run starter.prepare() File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\Zope2\Startup\__init__.py", line 75, in prepare self.setupSecurityOptions() File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\Zope2\Startup\__init__.py", line 144, in setupSecurityOptions import AccessControl File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\AccessControl\__init__.py", line 16, in <module> from AccessControl.Implementation import setImplementation File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\AccessControl\Implementation.py", line 98, in <module> setImplementation("C") File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\AccessControl\Implementation.py", line 51, in setImplementation from AccessControl import ImplC as impl File "C:\Python26\lib\site-packages\zope2-2.12.5-py2.6-win-amd64.egg\AccessControl\ImplC.py", line 17, in <module> from AccessControl.cAccessControl import rolesForPermissionOn ImportError: DLL load failed: is not a valid Win32 application

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cron like service
by Garry Saddington 05 May '10

05 May '10

Can anyone suggest the easiest way to automatically have a python script fire at set times of the day/month/year. Regards Garry

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oddity in MailHost queue processor thread
by Maric Michaud 04 May '10

04 May '10

Hi all, I was surprised by the behavior of asynchronous mailing in zope 2.11.3 MailHost product. It creates a thread by instance of MailHost by the mean of using self.absolute_url(1) as key for the queue_threads dictionnary. It seems obviously wrong, IMO, if several instances share the same queue directory, mesages actually get sent more than once. Following is the monkey patch which works fine for me, but the idea is straightforward, it's to use the realpath of the smtp_queue_directory as the identifier of the thread, ensuring that MailHosts that share the same queue directory will also share the same thread for processing mails. regards, # un monkey patch du mailhost de zope2.11, ce dernier utilise une thread # par instance de mailhost pour la getsion de la queue de messages, ce n'est # pas correct, il faut qu'il garantisse qu'il n'y a qu'une thread par # répertoire réel de queue. from Products.MailHost import MailHost as mh if not hasattr(mh.MailBase, '_cfenet_patched_queueThreadAlive'): mh.MailBase._cfenet_patched_queueThreadAlive = mh.MailBase.queueThreadAlive def queueThreadAlive(self): """return True/False is queue thread is working""" from Products.MailHost import MailHost as mh from os.path import realpath # Il est important d'avoir un mailer unique par répertoire th = mh.queue_threads.get(realpath(self.smtp_queue_directory)) return th and th.isAlive() mh.MailBase.queueThreadAlive = queueThreadAlive if not hasattr(mh.MailBase, '_cfenet_patched__stopQueueProcessorThread'): mh.MailBase._cfenet_patched__stopQueueProcessorThread = \ mh.MailBase._stopQueueProcessorThread @mh.synchronized(mh.MailBase.lock) def _stopQueueProcessorThread(self): """ Stop thread for processing the mail queue """ from Products.MailHost import MailHost as mh from os.path import realpath path = realpath(self.smtp_queue_directory) if mh.queue_threads.has_key(path): th = mh.queue_threads[path] th.stop() while th.isAlive(): # wait until thread is really dead mh.time.sleep(0.3) del mh.queue_threads[path] mh.LOG.info('Thread for %s stopped' % path) mh.MailBase._stopQueueProcessorThread = _stopQueueProcessorThread if not hasattr(mh.MailBase, '_cfenet_patched__startQueueProcessorThread'): mh.MailBase._cfenet_patched__startQueueProcessorThread = \ mh.MailBase._startQueueProcessorThread @mh.synchronized(mh.MailBase.lock) def _startQueueProcessorThread(self): """ Start thread for processing the mail queue """ from Products.MailHost import MailHost as mh from os.path import realpath path = realpath(self.smtp_queue_directory) if not mh.queue_threads.has_key(path): th = mh.QueueProcessorThread() th.setMailer(self._makeMailer()) th.setQueuePath(self.smtp_queue_directory) th.start() mh.queue_threads[path] = th mh.LOG.info('Thread for %s started' % path) mh.MailBase._startQueueProcessorThread = _startQueueProcessorThread -- _____________ Maric Michaud

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Data.fs data record exceeds transaction record
by Michele Marcionelli 02 May '10

02 May '10

Hello 2 hours ago I wanted to go to sleep... and "unfortunately" I noticed that our websites were offline since about 5 hours; I coudn't start zope anymore because the Data.fs seems to be corrupted. The quick solution has been to copy a 2 days old version of the Data.fs back... but I still hope to recover the old Data.fs. But wenn I try to recover it with the fsrecover.py tool I get this error message: 2010-05-02 00:38:39 WARNING OFS.Application Duplicate Product name After loading Product 'Five' from '/scratch/ZOPE-BOT/current/Products', I skipped the one in '/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/ Products'. 2010-05-02 00:38:39 WARNING Init Class Products.LDAPUserFolder.LDAPUserFolder.LDAPUserFolder has a security declaration for nonexistent method 'getAttributeOfAllObjects' 2010-05-02 00:38:39 WARNING Init Class Products.LDAPUserFolder.LDAPUserFolder.LDAPUserFolder has a security declaration for nonexistent method 'getAttributeOfAllObjects' 2010-05-02 00:38:39 WARNING Silva Silva Documents require upgrading. There are Silva Documents which have not been upgraded to Silva 0.9.3. Upgrade via service_extensions. 2010-05-02 00:38:40 WARNING ZODB.FileStorage Ignoring index for / scratch/ZOPE-BOT/current/var/Data.fs 2010-05-02 00:38:51 CRITICAL ZODB.FileStorage /scratch/ZOPE-BOT/ current/var/Data.fs data record exceeds transaction record at 949568131 Traceback (most recent call last): File "<string>", line 1, in ? File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/Zope2/ __init__.py", line 51, in app startup() File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/Zope2/ __init__.py", line 47, in startup _startup() File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/Zope2/App/ startup.py", line 57, in startup DB = configuration.dbtab.getDatabase('/', is_root=1) File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/DBTab/ DBTab.py", line 96, in getDatabase db = self._createDatabase(name, is_root) File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/DBTab/ DBTab.py", line 113, in _createDatabase db = factory.open() File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/Zope2/ Startup/datatypes.py", line 163, in open DB = self.createDB() File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/Zope2/ Startup/datatypes.py", line 160, in createDB return ZODBDatabase.open(self) File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/ZODB/ config.py", line 97, in open storage = section.storage.open() File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/ZODB/ config.py", line 133, in open quota=self.config.quota) File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/ZODB/ FileStorage/FileStorage.py", line 169, in __init__ read_only=read_only, File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/ZODB/ FileStorage/FileStorage.py", line 1731, in read_index name, pos) File "/scratch/local/app/zope/2.8.9.1-2.3.6/lib/python/ZODB/ FileStorage/FileStorage.py", line 52, in panic raise CorruptedTransactionError(message) ZODB.FileStorage.FileStorage.CorruptedTransactionError: %s data record exceeds transaction record at %s Thanks, Michele -- ETH Zürich Michele Marcionelli IT Support Gruppe D-MATH HG G 32.1 Rämistrasse 101 CH–8092 Zürich michele.marcionelli(a)math.ethz.ch http://www.math.ethz.ch/~michele +41 44 632 6193 Telefon +41 44 632 1354 Fax

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Zope 2.12 and ZPT
by Peter Bengtsson 01 May '10

01 May '10

I'm trying to get a product running in Zope 2.12 which I installed in a virtualenv with easy_install. It starts fine and all but when I try to render a piece of ZPT I get this weird error: Traceback (innermost last): Module ZPublisher.Publish, line 127, in publish Module ZPublisher.mapply, line 77, in mapply Module ZPublisher.Publish, line 47, in call_object Module Products.IssueTrackerProduct.IssueTracker, line 12629, in AddIssue Module Shared.DC.Scripts.Bindings, line 324, in __call__ Module Shared.DC.Scripts.Bindings, line 361, in _bindAndExec Module Products.PageTemplates.PageTemplateFile, line 130, in _exec Module Products.PageTemplates.PageTemplate, line 80, in pt_render Module zope.pagetemplate.pagetemplate, line 115, in pt_render Module zope.tal.talinterpreter, line 271, in __call__ Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 888, in do_useMacro Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 533, in do_optTag_tal Module zope.tal.talinterpreter, line 518, in do_optTag Module zope.tal.talinterpreter, line 513, in no_tag Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 742, in do_insertStructure_tal Module Products.PageTemplates.Expressions, line 220, in evaluateStructure Module zope.tales.tales, line 696, in evaluate Module Products.PageTemplates.ZRPythonExpr, line 49, in __call__ - __traceback_info__: here.getRoot().title_or_id().replace(' ',' ') Module PythonExpr, line 1, in <expression> UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 0: ordinal not in range(128) After a lot of trial-and-error I managed to figure out that the culprit was this piece of ZPT code: tal:content="structure python:here.getRoot().title_or_id().replace(' ',' ')" Stupid and easy to fix; maybe but what if there are other problems like this? What's the cause of this? Do I have to set something special up in zope.conf just for Page Templates to not convert 'nbsp;' into '\xa0\xc2'? -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com fun crosstips.org

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