November 2005 - Zope

Zope 2.8.4 external methods do not autorefresh
by Dennis Allison 18 Nov '05

18 Nov '05

test framework: <dtml-var standard_html_header> <dtml-var expr="eproc()"> <dtml-var standard_html_footer> Setup an external method def eproc( self ): return 'hello world' and run the test method. It prints hello world Now, change the test method def eproc( self ): return 'hello world too' and run the test method. It prints hello world which is a deviation from the usual Zope2 behavior. To adopt the code for the modified method the external method needs to be resaved. Is this a bug or a feature? --

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filename splitter
by Peter Bengtsson 18 Nov '05

18 Nov '05

Hi, I don't usually do this but I need your advise on something. It's a filename splitter for a KeywordIndex of File objects. http://www.peterbe.com/plog/filename-splitter By applying this splitter I hope to be able to search for files by parts of the filename. Has anything like this been done before? Am I on the right track? Do you see any pitfalls? -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com

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Zope 2.8.4 compilation error
by Gusti Gonzalez 18 Nov '05

18 Nov '05

Hi, I am having the following error when compiling Zope: --------------------------------------------------------------- "/usr/bin/python" "/infra/portal/Zope-2.8.4-final/setup.py" \ build --build-base="/infra/portal/Zope-2.8.4-final/build-base/python-2.3" --build-lib="/infra/portal/Zope-2.8.4-final/build-base/python-2.3/build-lib" --build-scripts="/infra/portal/Zope-2.8.4-final/build-base/python-2.3/build-scripts" --build-temp="/infra/portal/Zope-2.8.4-final/build-base/python-2.3/build-temp" running build running build_py running build_ext building 'AccessControl.cAccessControl' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -IExtensionClass -IAcquisition -I/usr/include/python2.3 -c AccessControl/cAccessControl.c -o /infra/portal/Zope-2.8.4-final/build-base/python-2.3/build-temp/AccessControl/cAccessControl.o En el fichero incluído de /usr/lib/gcc-lib/i486-linux/3.3.5/include/syslimits.h:7, de /usr/lib/gcc-lib/i486-linux/3.3.5/include/limits.h:11, de /usr/include/python2.3/Python.h:19, de ExtensionClass/ExtensionClass.h:83, de AccessControl/cAccessControl.c:51: /usr/lib/gcc-lib/i486-linux/3.3.5/include/limits.h:122:75: limits.h: No existe el fichero o el directorio En el fichero incluído de ExtensionClass/ExtensionClass.h:83, de AccessControl/cAccessControl.c:51: /usr/include/python2.3/Python.h:28:19: stdio.h: No existe el fichero o el directorio /usr/include/python2.3/Python.h:30:5: #error "Python.h requires that stdio.h define NULL." /usr/include/python2.3/Python.h:33:20: string.h: No existe el fichero o el directorio /usr/include/python2.3/Python.h:34:19: errno.h: No existe el fichero o el directorio /usr/include/python2.3/Python.h:36:20: stdlib.h: No existe el fichero o el directorio /usr/include/python2.3/Python.h:39:20: unistd.h: No existe el fichero o el directorio /usr/include/python2.3/Python.h:46:20: assert.h: No existe el fichero o el directorio ... ... and the error list goes on. --------------------------------------------------------------- but the limits.h file does exist at the above mentioned location My environment is: Debian 3.1 (stable) dpkg -l | grep python ii python 2.3.5-2 An interactive high-level object-oriented la ii python-ldap 2.0.4-1 A LDAP interface module for Python. [dummy p ii python2.3 2.3.5-3 An interactive high-level object-oriented la ii python2.3-dev 2.3.5-3 Header files and a static library for Python ii python2.3-ldap 2.0.4-1 A LDAP interface module for Python 2.3 dpkg -l | grep gcc ii gcc 3.3.5-3 The GNU C compiler ii gcc-3.3 3.3.5-13 The GNU C compiler ii gcc-3.3-base 3.3.5-13 The GNU Compiler Collection (base package) ii libgcc1 3.4.3-13 GCC support library dpkg -l | grep make ii ant 1.6.2-2 Java based build tool like make ii libant1.6-java 1.6.2-2.1 Java based build tool like make -- library ii make 3.80-9 The GNU version of the "make" utility. ii makedev 2.3.1-77 creates device files in /dev Any ideas what can be missing from my installation? Best regards, Gustavo.

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(no subject)
by AZAIS Bruce 18 Nov '05

18 Nov '05

Hi, excuse-me for my English but i'm french ;-) i've install zope 2.8.4 and Plone 2.1.1. i've do a copy of my data.fs and my products of my old Zope 's version zope 2.6.1, in the new version. the problem is that when i write http://localhost:8080/intranet to my URL, i've an error (see the traceback) : someone can help me ? thank you and have a good day. Time 2005/11/15 14:28:07.484 GMT+1 User Name (User Id) controle (controle) Request URL http://localhost:8080/intranet/index_html Exception Type AttributeError Exception Value plone_javascripts.js Traceback (innermost last): * Module ZPublisher.Publish, line 113, in publish * Module ZPublisher.mapply, line 88, in mapply * Module ZPublisher.Publish, line 40, in call_object * Module Shared.DC.Scripts.Bindings, line 311, in __call__ * Module Shared.DC.Scripts.Bindings, line 348, in _bindAndExec * Module Products.PythonScripts.PythonScript, line 323, in _exec * Module None, line 1, in index_html <PythonScript at /intranet/index_html> Line 1 * Module Shared.DC.Scripts.Bindings, line 311, in __call__ * Module Shared.DC.Scripts.Bindings, line 348, in _bindAndExec * Module Products.PageTemplates.ZopePageTemplate, line 256, in _exec * Module Products.PageTemplates.PageTemplate, line 104, in pt_render <ZopePageTemplate at /intranet/frontpage used for /intranet/frontpage> * Module TAL.TALInterpreter, line 206, in __call__ * Module TAL.TALInterpreter, line 250, in interpret * Module TAL.TALInterpreter, line 711, in do_useMacro * Module TAL.TALInterpreter, line 250, in interpret * Module TAL.TALInterpreter, line 711, in do_useMacro * Module TAL.TALInterpreter, line 250, in interpret * Module TAL.TALInterpreter, line 308, in do_startTag * Module TAL.TALInterpreter, line 374, in attrAction_tal * Module Products.PageTemplates.TALES, line 227, in evaluateText * Module Products.PageTemplates.TALES, line 221, in evaluate URL: /intranet/header Line 61, Column 4 Expression: standard:'here/plone_javascripts.js/absolute_url' Names: {'container': <PloneSite at /intranet>, 'context': <ZopePageTemplate at /intranet/frontpage>, 'default': <Products.PageTemplates.TALES.Default instance at 0x01B1FDC8>, 'here': <ZopePageTemplate at /intranet/frontpage>, 'loop': <Products.PageTemplates.TALES.SafeMapping object at 0x05CE5490>, 'modules': <Products.PageTemplates.ZRPythonExpr._SecureModuleImporter instance at 0x01AE4350>, 'nothing': None, 'options': {'args': ()}, 'repeat': <Products.PageTemplates.TALES.SafeMapping object at 0x05CE5490>, 'request': <HTTPRequest, URL=http://localhost:8080/intranet/index_html>, 'root': <Application at >, 'template': <ZopePageTemplate at /intranet/frontpage used for /intranet/frontpage>, 'traverse_subpath': [], 'user': controle} * Module Products.PageTemplates.Expressions, line 185, in __call__ * Module Products.PageTemplates.Expressions, line 173, in _eval * Module Products.PageTemplates.Expressions, line 127, in _eval __traceback_info__: here * Module Products.PageTemplates.Expressions, line 315, in restrictedTraverse __traceback_info__: {'path': [plone_javascripts.js, 'absolute_url'], 'TraversalRequestNameStack': ['absolute_url']} AttributeError: plone_javascripts.js ***************************************************** "Le contenu de ce courriel et ses eventuelles pièces jointes sont confidentiels. Ils s'adressent exclusivement à la personne destinataire. Si cet envoi ne vous est pas destiné, ou si vous l'avez reçu par erreur, et afin de ne pas violer le secret des correspondances, vous ne devez pas le transmettre à d'autres personnes ni le reproduire. Merci de le renvoyer à l'émetteur et de le détruire. Attention : L'Organisme de l'émetteur du message ne pourra être tenu responsable de l'altération du présent courriel. Il appartient au destinataire de vérifier que les messages et pièces jointes reçus ne contiennent pas de virus. Les opinions contenues dans ce courriel et ses éventuelles pièces jointes sont celles de l'émetteur. Elles ne reflètent pas la position de l'Organisme sauf s'il en est disposé autrement dans le présent courriel." ******************************************************

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ParsedXML create from a Python script
by Brian Sullivan 17 Nov '05

17 Nov '05

I am trying to figure out how to create a ParsedXML object from a Python script and have it parse XML text that I have in string. I have managed to create the object with no content( or default content) but am not sure what to do to have my xml string parsed and contained. Does anybody have a sample of code that does this or can point to a resource with this information?

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Does anybody us Komodo to debug Zope?
by Jerry Westrick 17 Nov '05

17 Nov '05

Hello List.... Since I already own komodo (For perl developement), I was wondering if you can use Komodo to debug zope. The only link I found was: http://www.zope.org/Members/andym/KomodoDebugging (dated 2003). Which didn't seam to offer much. Anybody out there using Komodo? Jerry

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Passing Parameters to External Methods
by Asad Habib 17 Nov '05

17 Nov '05

Hello. I am trying to use the Python version of the PHP script written by Jason Rust called 'HTML_ToPDF.php'. I have represented this script using an External Method since it uses functions, such as open, which cannot be used in Zope Python scripts for security reasons. The python code for the script consists of a class definition and so I have had to create a python function which instantiates an object of this class. However, I am having toruble passing parameters to this function which are needed by the class constructor to instantiate an object of this class. Can parameters be passed to external methods? Whenever I try to pass parameters to function 'createHtmlToPdf', Zope returns an error stating that no such function exists. Other on the hand, if I pass no parameters this call is successful but the init function fails complaining that three parameters are expected. I have provided a snippet of my code below. Any help would be greatly appreciated. Thanks. - Asad def createHtmlToPdf(in_htmlFile, in_domain, in_pdfFile): return html2pdf(in_htmlFile, in_domain, in_pdfFile) # This is based on a php script (c) Jason Rust <jrust(a)rustyparts.com> # See that script for licensing # Convert an HTML file to a PDF file using html2ps and ps2pdf from tempfile import gettempdir, mkstemp import os import re from re import IGNORECASE, DOTALL from copy import copy class html2pdf: def __init__(self, in_htmlFile, in_domain, in_pdfFile = None): """Constructor in_htmlFile The full path to the html file to convert in_domain The default domain name for images that have a relative path in_pdfFile (optional) The full path to the pdf file to output. If not given then we create a temporary name. """

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probably a simple answer...
by Kate Legere 17 Nov '05

17 Nov '05

So this probably has a simple answer but if someone could direct me it would save lots of time ... I have a python script that gets called from a dtml method and returns the information requested from a mySql database and opens it as an excel file. I'd like it also to save the file (it can safely overwrite the existing file) ... how do I do this? ---the python script has request = container.REQUEST RESPONSE = request.RESPONSE table_example = <-- html table formatting tags and python code to get the info from the database --> RESPONSE.setHeader("Content-type","application/vnd.ms-excel") RESPONSE.setHeader("Content-disposition","attachment;filename=statsSpreadshe et.xls") return table_example ----------------- Kate

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question about Zope capabilities
by Rich Robinson 17 Nov '05

17 Nov '05

Hi, I'm brand new on this list and writing to get a bit of insight here. We had someone design a web site using Zope, and very pleased with it. That person is no longer with us and I'm not at all a savvy back-end person, let alone Zope-savvy. At this point, the site is great for managing content via the database. However, as far as I can see pretty much all the content needs to fit into templates, with the result that there appears to be little room for setting up a more free-form looking page that can incorporate graphics in a freer, more visual way. Sure, we can add images and any HTML we like, but they are confined to the areas designated by the templates. In other words, the site tends to "look like" a database-driven website - not unpleasing by any means, but I'm wondering if Zope lends itself to more "creative" looking pages that departs from the templated look. At zope.org there is a list of sites using Zope that I'll have a look at, but I'd be appreciative of any feedback. We are thinking of hiring someone with more graphics than back-end experience and I'd like to hear if anyone thinks Zope is adaptable to give someone plenty of creative expression. Thanks! Rich

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Apache-pound-zeo-zope instances. Bad gateway and dual cpus related issues
by Christophe Gravier 17 Nov '05

17 Nov '05

Hi, I did not find any "architecture related" mailing list, so I deceided topost on the general list. I hope this is OK. I am struggling with my new zeo/zope architecture for some days now. I come to the conclusion that I should ask for help. I currently single cpu machine hosting zope + apache. I am trying to migrate to the architecture: machine A : Apache+pound machine B : 1 zeo + 1 zope machine C : 2 zope machine D : 2 zope all dual core, debian etch testing, Zope is 2.8.1-final and python 2.3.5. 1) Apache (machine A) In /etc/apache2/apache2.conf I inserted the rewrite rule: [...] NameVirtualHost 161.3.50.16 <VirtualHost 161.3.50.16> ServerName ist-guizay.univ-st-etienne.fr DocumentRoot /var/www/ RewriteEngine On RewriteRule ^/(.*) http://161.3.50.16:81/VirtualHostBase/http/ist-guizay.univ-st-etienne.fr:80… [P] </VirtualHost> [...] That is to say that ist-guizay.univ-st-etienne.fr is machine A ... I want to pass to my pound (listening on the same machine, port 81), all request on 80 port of ist-guizay.univ-st-etienne.fr 2) Pound (machine A) In /etc/pound/pound.cfg, I have: [...] ListenHTTP *,81 UrlGroup ".*" BackEnd ip_machine_B,8080,1 BackEnd ip_machine_C,8080,2 BackEnd ip_machine_D,8080,2 EndGroup [...] The architecture is all hosted in the same service (inside an university, no external firewalls except the one on the machine that are filtering zeo/zope/pound/apache ports). I can do : http://machineB.mondomain.com:8080 http://machineC.mondomain.com:8080 http://machineD.mondomain.com:8080 All give me the welcome Zope installation page, as well as http://machineA.mondomain.com:81. (pound conf is ok) But I cannot go any further in my installation. There 2 things that troubles my understanding: A) RewriteRule: http://machineA.mondomain.com as well as http://machineA.mondomain.com/Portail (where /Portail is the path to plone site in fact), both replies: "Bad Gateway The proxy server received an invalid response from an upstream server." I shall have done some mistakes in apache2.conf on the rewriterule: RewriteRule ^/(.*) http://161.3.50.16:81/VirtualHostBase/http/ist-guizay.univ-st-etienne.fr:80… [P] but obviously I don't see it. The current production for 2 years does work (one single cpu with both apache and zope instance) with the same kind of RewriteRule mechanism. B) About running zope on dual core cpus: Not as critical but I missed something here too. I read (http://mail.zope.org/pipermail/zope/1999-December/100589.html) that python core got some lock policies in single thread mode, but I expected to associate one instance per cpu to solve it out. That is the reason why I configured 2 instances per machine (they are dual core ...). Nevertheless, If I log into machine B (running two zope instances), making tail -f ./instances/instance1/log/Z2.log and in another terminal, for the same machine: tail -f ./instances/instance2/log/Z2.log Then, I configure pound to redirect all requests on machine B and finally hit http://machineB:81 a lots, all requests goes to instance1 (first launched). I would expect the system to make the balancing (if one cpu is used by a thread instance1, instance2 can still response with cpu 2 ...) Obviously this is not the case, why ? I solve it by making instances listen on different ports so that pound got now 2 differents entries for one host (one entry per instance). Sorry for the long post, but these are all things needed to be explained to let you understand my problem. Best Regards, -- Christophe Gravier Laboratoire DIOM, groupe SATIn - Doctorant ISTASE - Ingénieur d'études Perso: http://perso.univ-st-etienne.fr/gravchri/ SATIn: http://www.istase.com/satin Tel : 04 7748 5034

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