Zope February 2007

zope@zope.dev

96 participants
115 discussions

Re: [Zope] convert python to dtml
by Jaroslav Lukesh 06 Aug '09

06 Aug '09

> Odesílatel: Exteam <exteam6(a)yahoo.co.in> > hi all, > i'm stuck at this point, > can some one convert thge following python code in to > dtml & help me. > i'm not able to convert it in to dtml. Why do you want to recode into DTML? I think that is piece of good code and much faster than DTML. You could try following replacing (original line of your code, follows with DTML code), but not tested: > rec = context.test_select_sql() <dtml-call "REQUEST.set(rec , test_select_sql())"> > print "Fields definitions" Fields definitions > recordset = rec.dictionaries() <dtml-let "recordset = rec.dictionaries()" > rownum = 1 <dtml-call "REQUEST.set(rownum,1)" > for record in recordset: <dtml-in recordset> > print "Row %d" % (rownum), "check", record Row <dtml-var rownum>, check <drml-var sequence-item><br> > rownum = rownum + 1 <dtml-call "REQUEST.set(rownum,rownum+1)" </dtml-in> and so on on the rest of code. > for key in record.keys(): > print key, "=", record[key] > print "-" * 80 > return printed

3 7

read-only-database
by Ulla Theiss 17 Mar '09

17 Mar '09

Hello list, I want to run the database in read-only mode from CD and configured it accordingly in the zope.conf: read-only-database on enable-product-installation off zserver-read-only-mode on Starting Zope, I get the following error: Traceback (most recent call last): File "\Programme\Zope\lib\python\Zope2\Startup\run.py", line 56, in ? run() File "\Programme\Zope\lib\python\Zope2\Startup\run.py", line 21, in run starter.prepare() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 98, in pre pare self.startZope() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 257, in st artZope Zope2.startup() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 47, in sta rtup starter.setConfiguration(cfg) File "D:\Programme\Zope\lib\python\Zope2\App\startup.py", line 56, in startup File "D:\Programme\Zope\lib\python\DBTab\DBTab.py", line 96, in getDatabase File "D:\Programme\Zope\lib\python\DBTab\DBTab.py", line 113, in _createDataba se File "E:\Programme\Zope\lib\python\Zope2\Startup\datatypes.py", line 163, in o pen DB = self.createDB() File "E:\Programme\Zope\lib\python\Zope2\Startup\datatypes.py", line 160, in c reateDB return ZODBDatabase.open(self) File "D:\Programme\Zope\lib\python\ZODB\config.py", line 97, in open File "D:\Programme\Zope\lib\python\ZODB\config.py", line 133, in open File "D:\Programme\Zope\lib\python\ZODB\FileStorage\FileStorage.py", line 112, in __init__ File "D:\Programme\Zope\lib\python\ZODB\lock_file.py", line 57, in __init__ IOError: [Errno 13] Permission denied: '\\Zope-Instance/var/Data.fs.lock' r+ means opening the file for updating. This has not to do anything with read-only. Does anybody know what I have to configure additionaly, that read-only works? I run Zope 2.8.4 on windows. Many thanks in advance, Ulla.

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Re: [Zope] Squid & ESI
by Chris Withers 01 Jun '08

01 Jun '08

Alan Milligan wrote: > We haven't had any problems in building Squid-3.x images ...with ESI enabled? > I've also heard of at least one other abandoned Squid3 rollout, and it's > quite possible that without Robert's participation, Squid3 isn't really > production strength. Yup, that and Squid 3's "not production quality" status makes the whole Squid/ESI thing a total non-starter, which is a shame... ...but I do wish, as a result, that people would stop touting it as a way to scale Zope apps. cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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how dump Zope database content into a file system directory tree?
by seberino＠spawar.navy.mil 11 Jul '07

11 Jul '07

Possible to dump content in Zope database into a file system tree? Chris -- _______________________________________ Christian Seberino, Ph.D. SPAWAR Systems Center San Diego Code 2872 49258 Mills Street, Room 158 San Diego, CA 92152-5385 U.S.A. Phone: (619) 553-9973 Fax : (619) 553-6521 Email: seberino(a)spawar.navy.mil _______________________________________

4 3

acl_users
by Sean Duffy 21 Jun '07

21 Jun '07

Hi, I'm trying to do a batch add of users to the standard acl_users folder. Note quite a total success or total failure just yet. First I made a text file (usr_pwd.txt) in the form of password space username. and placed it (temporarily) in the Extensions directory. Then an external method (LoadUsers) to read it: def LoadUsers(self): f=open('/var/lib/zope/Extensions/usr_pwd.txt', 'r') y=f.readlines() return y And a script (user_load): ## Script (Python) "user_load" ##bind container=container ##bind context=context ##bind namespace=_ ##bind script=script ##bind subpath=traverse_subpath ##parameters= ##title= ## y=context.LoadUsers() for x in y: z=x.split(' ') acl = container.restrictedTraverse( '/foobar/acl_users' ) acl.userFolderAddUser( z[1], z[0], '', '' ) return 0 I hit the Test tab and now I have an acl_users folder full of users with the correct user names, and their passwords show the correct number of characters, however I can't log in using any of the user/password combinations. Should the path '/foobar/acl_users' been simply '/foobar/' or '/foobar' ? Any suggestions? Thanks, Sean

4 8

invalid property value: wrapped object
by Anthony Monta 08 Mar '07

08 Mar '07

Hello group: Running Zope 2.6.1/Python 2.1.3, I get the following error when I try to pass form values to a custom ZClass instance-creating method: Error Type: ValueError Error Value: Invalid property value: wrapped object I haven't had to deal with this kind of error before. Does this mean that the wrapped object (aq_parent) has an invalid property value, or does aq_self have the invalid value? What's the most efficient way to debug this? Best, Anthony ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com

5 6

Zope hangs in FreeBSD with plenty of memory and CPU resources
by Jean Lagarde 07 Mar '07

07 Mar '07

All, As a coincidence, that hang of Zope I mentioned in a message I posted yesterday has happened again today (second time), after a planned reboot. So here is a completely different issue from the memory one we've been discussing today. There was other weirdness (for whatever reason _mysql could not find libmysqlclient_r.so.15 on some restart attempts), but here is something that seemed to occur consistently while Zope was unresponsive: On FreeBSD 5.4, with zserver-threads set to the default 4, there were seven Zope threads with the following states (CPU use is 0% and memory use is well below the maximum, pretty much where it is at after a normal fresh Zope restart): select ksesig kserel kqread kqread kqread kqread When Zope is operating normally and idle, I generally only see the three top threads, and when serving pages, I rarely see more than three threads; one actually often disappears and I only see two, one in the RUN state. I know that the kqread state has to do with the kqueue or kevent system call, and assume that Zope being in that waiting state for a long time is abnormal. Asking here in case someone has seen this behavior before and knows what might be the cause. As for the last and only other time this happened, Zope regained normal behavior by itself after a little while (in the order of half an hour). I don't see anything abnormal in the event log (other than the _mysql issue I mentioned above), and while stuck, requests do not register in the Z2.log. Browsers do get a connection because they state "waiting for..." but they do not receive anything, not even headers. After a fresh restart, I could get Zope to respond to a relatively benign request (the top level ZMI page), while there were only three Zope threads, but if asking for more, Zope would quickly get to the unresponsive state described above. We're thinking that we may be having underlying OS issues and will probably ask on a FreeBSD list and/or upgrade FreebBSD and hope that helps, but I'm asking here first just in case that this pattern of behavior was observed and resolved before. Cheers, Jean

4 4

Zope hangs and Python eats all memory
by Nico Grubert 06 Mar '07

06 Mar '07

Dear list members, I am running Zope 2.9.6. on a 64-Bit Suse Linux 10.1 machine (9 Gbyte of RAM) with Python 2.4.3. installed. From time to time, Zope hangs and I cannot access it anymore. I tried to use the "Zope DeadlockDebugger" but if my Zope hangs I cannot call the URL "http://myzopesite:8080/manage_debug_threads?secret_password" to let Zope DeadlockDebugger show any useful information. Zope does not response. If Zope hangs, the python process eats all the memory and the machine starts to swap. The "top" command in the shell tells me: ------------------------------------------------------------------------- Tasks: 91 total, 2 running, 89 sleeping, 0 stopped, 0 zombie Cpu(s): 10.4%us, 0.4%sy, 0.0%ni, 89.0%id, 0.2%wa, 0.0%hi, 0.0%si Mem: 9041256k total, 9025124k used, 16132k free, 10604k buffers Swap: 4208988k total, 4208988k used, 0k free, 9472k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 29992 wwwrun 16 0 12.0g 8.3g 2860 S 19 95.9 3:52.66 python ------------------------------------------------------------------------- There are several add-ons for Zope installed, like: - "Psycopg" Postgres Database Adapter - "mxODBCDA" ODBC Database Adapter - LDAPUserfolder - "Silva" Content Management System - PIL Furthermore, I see a lot of Conflict Errors in the "event.log" like e.g.: ------------------------------------------------------------------------- ZPublisher.Conflict ConflictError at /VirtualHostBase/http/193.134.202.20:80/mysite/VirtualHostRoot/: database conflict error (oid 0x0435, class BTrees._OOBTree.OOBTree, serial this txn started with 0x036aeb14ab1c4b88 2007-01-15 12:04:40.104030, serial currently committed 0x036aeb1d0cc5d099 2007-01-15 12:13:02.993605) (80 conflicts (0 unresolved) since startup at Mon Jan 15 11:44:55 2007) ------------------------------------------------------------------------- These kind of Conflict errors occur almost every minute. It might be that these errors have something to do with it but I am not sure. How can I figure out what exactly causes Zope to hang? If you need more information, please let me know. Thanks in advance... Regards, Nico

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ImportError: cannot import name base_hasattr
by tonylabarbara＠aol.com 05 Mar '07

05 Mar '07

Hi: This really should go to the Plone list, but seeing as how I can't hit their site from either of my browsers, how can I subscribe to the list? I couldn't download Plone, either, so I just built it from tarballs from an earlier installation, tarballing all the products associated with it (Plone 2.1.4, I think). Then I loaded them up in Zope 2.7.8 and got this error: Traceback (most recent call last): File "/usr/local/www/zope/278/lib/python/OFS/Application.py", line 673, in import_product File "/usr/local/zope/instance1/Products/ATContentTypes/__init__.py", line 54, in ? import Products.ATContentTypes.content File "/usr/local/zope/instance1/Products/ATContentTypes/content/__init__.py", line 34, in ? import Products.ATContentTypes.content.topic File "/usr/local/zope/instance1/Products/ATContentTypes/content/topic.py", line 33, in ? from Products.CMFPlone.CatalogTool import CatalogTool File "/usr/local/zope/instance1/Products/CMFPlone/CatalogTool.py", line 27, in ? from Products.CMFPlone.utils import base_hasattr ImportError: cannot import name base_hasattr Traceback (most recent call last): File "/usr/local/zope/278/lib/python/Zope/Startup/run.py", line 50, in ? run() File "/usr/local/zope/278/lib/python/Zope/Startup/run.py", line 19, in run start_zope(opts.configroot) File "/usr/local/zope/278/lib/python/Zope/Startup/__init__.py", line 52, in start_zope starter.startZope() File "/usr/local/zope/278/lib/python/Zope/Startup/__init__.py", line 231, in startZope Zope.startup() File "/usr/local/zope/278/lib/python/Zope/Startup/__init__.py", line 47, in startup # drop privileges after setting up servers File "/usr/local/www/zope/278/lib/python/Zope/App/startup.py", line 45, in startup File "/usr/local/www/zope/278/lib/python/OFS/Application.py", line 650, in import_products File "/usr/local/www/zope/278/lib/python/OFS/Application.py", line 673, in import_product File "/usr/local/zope/instance1/Products/ATContentTypes/__init__.py", line 54, in ? import Products.ATContentTypes.content File "/usr/local/zope/instance1/Products/ATContentTypes/content/__init__.py", line 34, in ? import Products.ATContentTypes.content.topic File "/usr/local/zope/instance1/Products/ATContentTypes/content/topic.py", line 33, in ? from Products.CMFPlone.CatalogTool import CatalogTool File "/usr/local/zope/instance1/Products/CMFPlone/CatalogTool.py", line 27, in ? from Products.CMFPlone.utils import base_hasattr ImportError: cannot import name base_hasattr CMFPlone/utils.py has a class named base_hasattr, so what's the problem? Perhaps I need to delete all the *.pyc files from the other server from which I copied all these products? (Lot of work, avoiding that since I'm not sure it's necessary, and there aren't any in CMFPlone anyway.) TIA, Tony ________________________________________________________________________ Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more.

3 5

zope.testbrowser, how to?
by Basil Shubin 28 Feb '07

28 Feb '07

Hi friends, I want use zope.testbrowser for testing my sites, but before write it as DocTest I want execute each statemnt interactively in python shell. I don't know any way to see where it's works, what value it returns, what error I can get and how this error should looks is python... It's why I want check it in python shell. What the problem? First, if execute following code in python shell: >>> from zope.testbrowser import Browser >>> browser = Browser() >>> browser.open('http://localhost/Plone') I have got: Traceback (most recent call last): File "<stdin>", line 1, in ? File "/usr/lib/python2.4/site-packages/zope/testbrowser/browser.py", line 220, in open self.mech_browser.open(url, data) File "/usr/lib/python2.4/site-packages/mechanize/_mechanize.py", line 254, in open return self._mech_open(url, data) File "/usr/lib/python2.4/site-packages/mechanize/_mechanize.py", line 277, in _mech_open self._response = UserAgent.open(self, self.request, data) File "/usr/lib/python2.4/urllib2.py", line 358, in open response = self._open(req, data) File "/usr/lib/python2.4/urllib2.py", line 376, in _open '_open', req) File "/usr/lib/python2.4/urllib2.py", line 337, in _call_chain result = func(*args) File "/usr/lib/python2.4/site-packages/zope/testbrowser/testing.py", line 112, in http_open return self.do_open(PublisherConnection, req) File "/usr/lib/python2.4/urllib2.py", line 993, in do_open h.request(req.get_method(), req.get_selector(), req.data, headers) File "/usr/lib/python2.4/site-packages/zope/testbrowser/testing.py", line 69, in request self.response = self.caller(request_string, handle_errors) File "/usr/lib/python2.4/site-packages/zope/app/testing/functional.py", line 573, in __call__ environment) File "/usr/lib/python2.4/site-packages/zope/app/testing/functional.py", line 606, in chooseRequestClass return chooseClasses(method, environment) File "/usr/lib/python2.4/site-packages/zope/app/publication/httpfactory.py", line 33, in chooseClasses factory = factoryRegistry.lookup(method, content_type, environment) File "/usr/lib/python2.4/site-packages/zope/app/publication/requestpublicationregistry.py", line 97, in lookup raise ConfigurationError('No registered publisher found ' zope.configuration.exceptions.ConfigurationError: No registered publisher found for (GET/) Second, if I add Zope src dir into PYTHONPATH, than I got following: >>> from zope.testbrowser import Browser Running tests at level 1 Total: 0 tests, 0 failures, 0 errors and than it drops me out from python shell. So, question is: suppose I don't know what value/error I can/should recive after each statement, so how can I write DocTest? I need somehow to know to what I should expect, but how? Thanks for any advices! PS. Sorry for my bad english

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Zope February 2007