November 2006 - Zope

invalid id "items"
by Jens-Erik Hansen 29 Nov '06

29 Nov '06

Hi! I would like to use boa constructor for zope (zope 2.9.4-final) debugging. In boa you can define a zope connection to inteact with the zope server. Starting a boa zope connection boa creates a zoa folder in the zope root containing a couple of objects. Apparently boa also tries to create an object with the id "items" but this fails. Zope tells me that "The id "items" is invalid - it is already in use.". I tried to find the already existing object with id "items" but without success. Please can anyone give me a hint where I can find this object or how I can solve this problem? Thank you very much. Jens

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RE: [Zope] error with simple python script loop
by Christian Steinhauer 29 Nov '06

29 Nov '06

>>I tried to reproduce your '4 iteration' problem on my Zope 2.9.2 >>installation, but even by removing the 'return' statement I >>still got 2 loop >>iterations (and 2 emails). >> >>I have never written a python script that did not have a >>'return' statement. >>I don't know if it is mandatory or not. I usually use python >>scripts as >>subroutines/functions and I always have a return statement >>(even if it is a >>bare return - ie. the return statement does not send back any data). >> >>As Andreas suggested, if you want to track this down you are >>going to have >>to use a debugger like pdb. I have test the script on my local windows python version with an print statement, and it works fine - everytime - so its only on zope. i cant use pdb on zope´s python script i think?

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Problem Creating Instance
by Nancy Donnelly 29 Nov '06

29 Nov '06

Hi; I built Z3 from FreeBSD ports. Went to create an instance and got this error: root@server167:ports/www/zope3 (115) /usr/local/www/Zope3/bin/mkzopeinstance -d /usr/local/www/Zope3/main Traceback (most recent call last): File "/usr/local/www/Zope3/bin/mkzopeinstance", line 47, in <module> from zope.app.server.mkzopeinstance import main File "/usr/local/www/Zope3/lib/python/zope/app/server/mkzopeinstance.py", line 32, in <module> from zope.app.authentication import password File "/usr/local/www/Zope3/lib/python/zope/app/authentication/__init__.py", line 19, in <module> import interfaces File "/usr/local/www/Zope3/lib/python/zope/app/authentication/interfaces.py", line 22, in <module> import zope.security.interfaces File "/usr/local/www/Zope3/lib/python/zope/security/__init__.py", line 24, in <module> from zope.security.management import checkPermission File "/usr/local/www/Zope3/lib/python/zope/security/management.py", line 25, in <module> from zope.security.interfaces import ISecurityManagement File "/usr/local/www/Zope3/lib/python/zope/security/interfaces.py", line 20, in <module> from zope.interface.common.interfaces import IAttributeError File "/usr/local/www/Zope3/lib/python/zope/interface/common/interfaces.py", line 80, in <module> classImplements(OverflowWarning, IOverflowWarning) NameError: name 'OverflowWarning' is not defined Now, apparently there is a vulnerability with Z3, so I could only make with this thrown in: DISABLE_VULNERABILITIES=yes TIA, Nancy

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Existence and truth
by Mark Barratt 29 Nov '06

29 Nov '06

[profound subject: sorry the body may be less interesting] This is so basic, but any help would be appreciated. It's also a Plone site, but the problem is about basic tal behaviour so I hope it's appropriate: I have an attribute, 'listed' (a property of 'member') which I want the user to be able to set or unset with a radio choice rather than by checking or unchecking a checkbox, as provided in default join_form and personalize_form. In personalize_form, I define listed like this: listed python:request.get('listed', member.getProperty('listed','')) The radio inputs return name="listed" and value 0 or 1 This works OK, but in the radio input code, tal:attributes="checked python:test(listed,'checked',None); *always* returns 'checked' and the second of these debug lines is *always* displayed, whether listed is 0 or 1: debug: value of listed, after define with getProperty=value debug: this para should print if listed is true, ie equals 1 Appendix C of the Zope Book says tal:condition tests for existence and truth, and "missing variables, None, zero, empty strings, and empty sequences false; all other values are true". So what basic fact/knowledge am I missing? Thanks Mark Barratt

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making a dynamic quiz help
by Thomas Bennett 28 Nov '06

28 Nov '06

I would like some suggestions on building a dynamic quiz. There are categories and in each category the question can be multiple choice or true/false. For each category a specific number of questions is asked. The questions asked are randomly chosen from a collection of questions for the category. The number of questions chosen may be different for each category. example category one - 3 questions category two - 1 question category three - 2 questions My first thought is a python script does the randomization selecting questions from my postgresql database. Quizzes submitted updates the database counting correct and wrong answers and emails the results to the student and instructors. A second thought is a python script builds a dtml page quiz from individual dtml files which categories can be folders with an individual dtml file for each question. Then submit questions and answers to database and email student and instructors. A third thought is create a collection of complete quizzes and then randomly select a quiz (least preferred). I've searched and the closest I could find was on the zope edu wiki just discussing an aggregated quiz but I haven't found where that has been persued. Most or all quiz products create static quizzes not one that can be built "on the fly". Any other designs would be appreciated. Thanks, Thomas -- ==================================================================== Thomas McMillan Grant Bennett Appalachian State University Computer Consultant III P O Box 32026 University Library Boone, North Carolina 28608 (828) 262 6587 If it's not as simple as possible to try it, then the barrier to entry is too high. Library Systems Help Desk: http://www.library.appstate.edu/help/ ====================================================================

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RE: [Zope] error with simple python script loop
by Christian Steinhauer 27 Nov '06

27 Nov '06

>>> context.MailHost.send('bodytext', "rec(a)mail.com", >>"sender(a)mail.com", >>> 'subj'+str(i)) >>> ### >>> This script produces: HTTP/1.1 204 No Content >> >>Moral of the story: if you want sane things to happen, make sure your >>script returns a string output. >> >>Otherwise you risk tickling some of the more arcane "features" of Zope >>2's publisher. They include "no content" >>responses if you return None and even weirder things if you return a >>two-element tuple. >> >>This isn't a bug, you're doing something silly, stop doing it ;-) Here i must add that it is an test script for the list only, the real script which has produce the error is bigger and it has an output of string. But the part which is sending the mail has produce the double emails, so i debug this part. Here is a bit of the original script, so tell me again why i get the error, because it has an string output. ### recp_list = [] request.set('Query','SQL SELECT') for i in context.sql_query(): mMsg = 'test' mTo = str(i["m_to"]) mFrom = str(i["m_from"]) mSubj = str(i["l_subject"]) context.MailHost.send(mMsg, mTo, mFrom, mSubj) recp_list.append(i["u_email"]) recp_output = str(recp_list) mRet = 'E-Mails send to: ' + recp_output + ' ' return mRet ### This script is the part of the devil ;) It has produce the double emails, i have cut some lines codes to get it faster to understand. - cs

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Re: [Zope] error with simple python script loop
by Christian Steinhauer 27 Nov '06

27 Nov '06

now i shrink my test script to one line ;) ### for i in range(2): context.MailHost.send('bodytext', "rec(a)mail.com", "sender(a)mail.com", 'subj'+str(i)) ### The error occured with IE, with Firefox i cant replicate the error. Here is the output of the Z2.log when calling the script over URL directly. localhost- christian [24/Nov/2006:23:48:27 +0200] "GET /VirtualHostBase/https/dev.***.de:443/VirtualHostRoot/Christian/rangeEMAIL.p y HTTP/1.1" 204 210 "" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)" localhost- christian [24/Nov/2006:23:48:28 +0200] "GET /VirtualHostBase/https/dev.***.de:443/VirtualHostRoot/Christian/rangeEMAIL.p y HTTP/1.1" 204 210 "" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)" localhost- christian [24/Nov/2006:23:52:13 +0200] "GET /VirtualHostBase/https/dev.***.de:443/VirtualHostRoot/Christian/rangeEMAIL.p y HTTP/1.1" 204 210 "" "Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.8.1) Gecko/20061010 Firefox/2.0" tomorrow i will check the zdb debugger with the script. thx for the hints to solve the problem.

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Re: [Zope] Help! Can't Log Into ZMI!!
by Nancy Donnelly 27 Nov '06

27 Nov '06

> When you have access to the ssh on your server i think you can set an > 'master password' I couldn't even pull up the ZMI password dialog box. But I figured it out. I changed IP addresses and needed to update that in the zope.conf because ZEO listens on port 9999. I wonder why I can't just use the localhost address: 127.0.0.1 ? Doesn't seem to work. Nancy

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Help! Can't Log Into ZMI!!
by Nancy Donnelly 26 Nov '06

26 Nov '06

Hi; I added a LDAPUserFolder instance to my Plone. It didn't connect for whatever reason. I rebooted the server. Now I can't log in! It just hangs. Actually, I rebooted a day later and did lots of work in between, so it's not like I could carefully edit the Data.fs. What do I do? Nancy

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Re: [Zope-dev] version.txt magic
by Christian Steinhauer 25 Nov '06

25 Nov '06

>>Zope 2.9 and Zope 2.10 currently show up with "unreleased >>version" inside the control panel. App/version_txt.py tries >>to read the file lib/python/Zope2/version_txt. This file is >>usually created by the 'makefile'. The makefile of Zope 2.9 >>create the file in the proper location however in Zope 2.10 >>the makefile creates lib/python/version.txt. >>Is there a particular reason for this? I currently have now >>clue what is bug and what is intended behavior. Any >>insights? *sigh* :-) Hi Andreas, i got the same *error* on the new zope 2.10 instance. Installed over newly created zope2.10 debian package. - cs

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