November 2003 - Zope

Question regarding acquisition behaviour.
by Alec Munro 25 Nov '03

25 Nov '03

Hi List, It is my understanding that while acquisition will traverse up the directory tree, it will only do so until it finds a match, and then it will restart from that directory. So if I'm in script 'someScript' looking for 'container.HTML.pageX' and my hierarchy looks something like this: someSite -HTML --pageX -subSite1 --about ---HTML ----pageA ----pageX --contact ---HTML ----pageA if someScript is in 'someSite/subSite1/about' then I will get the result: 'someSite/subSite1/about/HTML/pageX' But if someScript is in 'someSite/subSite1/contact' I won't get anything. It will find the HTML folder, and give up when there's no 'pageX'. What I would like is the result: '/someSite/HTML/pageX' Is there a way around this, to force acquisition to continue traversing up the directory if it hits a dead end? Or some alternative? Or is this behaviour necessary? Thanks, Alec Munro

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ObjectManager example needed
by Andre Meyer 25 Nov '03

25 Nov '03

Dear Zopers In continuing my search for help it seems like ObjectManager is what I am looking for in order to have a large collection of different Python objects in the same folder allowing for many links among them. I will need to be able to select which kinds of items to show and sort them and use them in forms. That should be standard behaviour, though, I would expect. Do you happen to have experience with ObjectManager and/or have a good example that I can study? The application I am developing is for a musician who currently has an Excel sheet with more than 20.000 pieces of old music (1600-1900) where each PieceOfMusic object refers to other objects like Composer, OrchestralSetting, Instrument, Cast, Recording, Writer, etc. Those need to become different kinds of Python objects that the PieceOfMusic object can refer to in order to guarantee consistency. I have designed an object model with all the classes, their attributes and relations in a UML diagram, but now I need to convert the Excel sheet into Python objects in Zope and make them accessible through ZPT pages and Python methods based on this UML model. I assume that I need a class MusicLibrary that is a direct subclass of ObjectManager and a variety of classes that represent my application classes and are all subclasses of ObjectManagerItem. Do you agree with this? In the help about ObjectManager and ObjectManagerItem I miss a method like manage_addObject. There are only manage_self, manage_addProduct and manage_addFolder. But which method does the trick of adding Python objects to my product's folder? Any help is appreciated best wishes Andre Meyer

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Importing from module, security
by Rainer Thaden 25 Nov '03

25 Nov '03

Hi all, i have a problem with the import of methods and classes from a self written module. Some details: I have a python class dealing with audiosignals. It loads a file from the filesystem performs operations on it and stores them in the filesystem. I want to use the classes in Zope (Plone) so i tried to pack them in a module and let the security machine know that it is allowed to import the class and the contained methods. To make it short: i didn't make it. Eiter i get an unauthorized error on the module, on the class or on the method inside the class. I noticed the collector issue http://collector.zope.org/Zope/685, but still don't know what to do. What would you do? Pack everything in a Zope product? I don't need to add instances to the ZODB, i just need the class and methods to work on audiosignals and store the in the file system. -- Regards, Rainer -- NEU F�R ALLE - GMX MediaCenter - f�r Fotos, Musik, Dateien... Fotoalbum, File Sharing, MMS, Multimedia-Gru�, GMX FotoService Jetzt kostenlos anmelden unter http://www.gmx.net +++ GMX - die erste Adresse f�r Mail, Message, More! +++

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Zope loose changed data after restarting
by Miguel Lara Alday 25 Nov '03

25 Nov '03

Hi! This is the second time we have lost changed data after restarting our web server. The data has been changed normaly from our website and also from Zope Manager Interface (add/modify/delete scripts, methods, etc). After we restart the server (it hangs) the history show us changed made >2 hours before. Even in the Zope logs there is no register about the changes. The changes just disappear. Why? We use: Zope 2.6.0, python 2.1.3 and CMF 1.4 Miguel

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Zope will not start
by Wei-Yen Tan 25 Nov '03

25 Nov '03

Hello, Please excuse the wordiness of this post. I have recently truied to install Zope 2.6.2 on Debian using apt. I updated all the prerequisites such as python libc6 etc so that it could be used with Zope. Zope installed fine. However when I run Zope, the command line seemed to indicate that it was ok loading, but there was no web site uising the ports... To cut the long story short, I went into debug mode and to my horror I found this below... It sseems to be a mismatch with python......which I am really baffled. I am just starting to experiment with this, and just would like to know what was up with it. Any help appreciated. TIa, Wei-Yen______________________________________________ /usr/lib/zope/ZServer/medusa/test/max_sockets.py:53: DeprecationWarning: integer argument expected, got float for i in range(1 + len(sl) * 0.05): /usr/lib/zope/lib/python/ZPublisher/BaseRequest.py:21: RuntimeWarning: Python C API version mismatch for module ExtensionClass: This Python has API version 1012, module ExtensionClass has version 1011. from ExtensionClass import Base /usr/lib/zope/ZServer/medusa/test/max_sockets.py:53: DeprecationWarning: integer argument expected, got float for i in range(1 + len(sl) * 0.05): /usr/lib/zope/lib/python/ZPublisher/BaseRequest.py:21: RuntimeWarning: Python C API version mismatch for module ExtensionClass: This Python has API version 1012, module ExtensionClass has version 1011. from ExtensionClass import Base /usr/lib/zope/lib/python/DocumentTemplate/DT_Var.py:163: RuntimeWarning: Python C API version mismatch for module Acquisition: This Python has API version 1012, module Acquisition has version 1011. from Acquisition import aq_base /usr/lib/zope/lib/python/AccessControl/ZopeSecurityPolicy.py:27: RuntimeWarning: Python C API version mismatch for module cAccessControl: This Python has API version 1012, module cAccessControl has version 1011. from cAccessControl import ZopeSecurityPolicy /usr/lib/zope/lib/python/AccessControl/SimpleObjectPolicies.py:20: RuntimeWarning: Python C API version mismatch for module Record: This Python has API version 1012, module Record has version 1011. import Record /usr/lib/zope/lib/python/ZODB/__init__.py:18: RuntimeWarning: Python C API version mismatch for module TimeStamp: This Python has API version 1012, module TimeStamp has version 1011. import cPersistence, Persistence /usr/lib/zope/lib/python/ZODB/__init__.py:18: RuntimeWarning: Python C API version mismatch for module cPersistence: This Python has API version 1012, module cPersistence has version 1011. import cPersistence, Persistence /usr/lib/zope/lib/python/ZODB/Connection.py:20: RuntimeWarning: Python C API version mismatch for module cPickleCache: This Python has API version 1012, module cPickleCache has version 1011. from cPickleCache import PickleCache, MUCH_RING_CHECKING /usr/lib/zope/lib/python/ZODB/Connection.py:25: RuntimeWarning: Python C API version mismatch for module coptimizations: This Python has API version 1012, module coptimizations has version 1011. from coptimizations import new_persistent_id /usr/lib/zope/lib/python/Globals.py:23: RuntimeWarning: Python C API version mismatch for module ComputedAttribute: This Python has API version 1012, module ComputedAttribute has version 1011. import Acquisition, ComputedAttribute, App.PersistentExtra, os /usr/lib/zope/lib/python/App/special_dtml.py:14: RuntimeWarning: Python C API version mismatch for module MethodObject: This Python has API version 1012, module MethodObject has version 1011. import DocumentTemplate, Common, Persistence, MethodObject, Globals, os, sys ------ 2003-11-26T01:14:02 PANIC(300) z2 Startup exception Traceback (innermost last): File z2.py, line 593, in ? (Object: ZLogger) File /usr/lib/zope/lib/python/Zope/__init__.py, line 45, in startup File /usr/lib/zope/lib/python/Zope/App/startup.py, line 24, in ? (Object: LOG) File /usr/lib/zope/lib/python/AccessControl/User.py, line 22, in ? File /usr/lib/zope/lib/python/OFS/SimpleItem.py, line 27, in ? File /usr/lib/zope/lib/python/OFS/CopySupport.py, line 535, in ? (Object: unquote) File /usr/lib/zope/lib/python/DocumentTemplate/DT_String.py, line 474, in __call__ (Object: <string>) File /usr/lib/zope/lib/python/DocumentTemplate/pDocumentTemplate.py, line 204, in render_blocks File /usr/lib/zope/lib/python/DocumentTemplate/pDocumentTemplate.py, line 142, in __getitem__ File /usr/lib/zope/lib/python/DocumentTemplate/pDocumentTemplate.py, line 102, in __getitem__ KeyError: "'v'" tcs1:/usr/lib/zope# This Python has API version 1012, module ExtensionClass has version 1011. bash: This: command not found tcs1:/usr/lib/zope#

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append one file to another
by Jenny Edmondson 25 Nov '03

25 Nov '03

Hi, How could I append the contents of one zope file to another using Python? What python command should I use to open these files? They cannot seem to be opened by the normal 'open' command. Regards, Jenny _________________________________________________________________ Hot chart ringtones and polyphonics. Go to http://ninemsn.com.au/mobilemania/default.asp

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RE: [Zope] Naming conventions
by Wilson, Derek 25 Nov '03

25 Nov '03

I don't have a convention as none is needed. You can easily distinguish the file types thru their "meta_type" and so you don't need any filename prefix to tell the difference. It's all really irrelevant what type of file it is. What's most important is the content. Thanks, Derek Wilson -----Original Message----- From: Jake (aka BZ) [mailto:jake@zopezone.com] Sent: Tuesday, November 25, 2003 12:19 PM To: Florian Lindner Cc: zope(a)zope.org Subject: Re: [Zope] Naming conventions Nothing special.. but I try to stay away from capitalization in any url. If it is all lowercase, it makes it easier to remember. Not really a Zope tip.. :) Jake -- http://www.ZopeZone.com Florian Lindner said: > Hello, > which naming conventions are usual for Zope objects? > For example: > pyThatScript > ptPageTemplate OR > zptPageTemplate > > What do you use? What can you recommend? > > Thanks, > Florian > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) > _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )

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Much onfusion concerning pcgi-wrapper
by Chris Burbridge 25 Nov '03

25 Nov '03

I am trying to install Zope on a web host account (no root access) that runs FreeBSD 4.5. It seems like I should be able to get it to work through pcgi-wrapper. I have gone through every bit of text I could find about pcgi-wrapper, and its relation to Zope.cgi, but still no luck. If I run pcgi-wrapper by itself, it outputs the "temporarly unavailable" HTML. In other words, it works by itself. I found out about using pcgifile.py, to verify that at least the basics were set up properly so that things _should_ work. It gives me a positive result I call: http://<siteName>.net/~<username>/cgi-bin/pcgifile.py?infofile=Zope.cgi. I have included the resulting output at the bottom of this email, but suffice to say, it seems to think things are okay. For the sake of trying to get this all to work, I chmod'ed access rights for /home/<userName>/cgi-bin/Zope (and all files and directories underneath that) to 777. The only thing I did differently in Zope.cgi was to change the PCGI_MODULE_PATH setting to point to Main.py, instead of just pointing to a directory. (Some documentation I found on the web pointed me to this, and when I did it the other way, I got an error, as it seemed to be expecting a file, not a directory.) I try running it from the command line: ./Zope.cgi or also just ./pcgi-wrapper Zope.cgi In either case, it just waits for a while, and then returns with no output. The pcgi.log file reports no problem. If I try calling http://<siteName>/cgi-bin/Zope.cgi, I get the "Temporarily Unavailable" message -- but again, nothing written to pcgi.log. I make sure I am runnning Python version 2.1.3. Other CGI files (I use Perl CGI a lot) work fine with the current Apache configuration. I would so appreciate any suggestions on this, because I am really hoping to start learning and using Zope. Maybe I just don't have rights on my account to be able to initiate a persistent process? Thanks! Chris Burbridge ------------------------ RESULTS OF pcgifile.py ------------------------ Python 2.1.3 (#3, Nov 16 2003, 23:23:48) [GCC 2.95.3 20010315 (release) [FreeBSD]] Apache/1.3.28 (Unix) PHP/4.3.4 mod_ssl/2.8.15 OpenSSL/0.9.7b PCGI info file:Zope.cgi PCGI wrapper:/home/<userName>/public_html/Zope/pcgi/pcgi-wrapper looks OK Zope.cgi #!/home/<userName>/public_html/Zope/pcgi/pcgi-wrapper PCGI_NAME=Zope PCGI_MODULE_PATH=/home/<userName>/cgi-bin/Zope/lib/python/Main.py PCGI_PUBLISHER=/home/<userName>/cgi-bin/Zope/pcgi/pcgi_publisher.py PCGI_EXE=/home/<userName>/usr/bin/python PCGI_SOCKET_FILE=/home/<userName>/cgi-bin/Zope/var/pcgi.soc PCGI_PID_FILE=/home/<userName>/cgi-bin/Zope/var/pcgi.pid PCGI_ERROR_LOG=/home/<userName>/cgi-bin/Zope/var/pcgi.log PCGI_DISPLAY_ERRORS=1 BOBO_REALM=/home/<userName>/cgi-bin/Zope/Zope.cgi BOBO_DEBUG_MODE=1 INSTANCE_HOME=/home/cgi-bin/public_html/Zope PCGI_DISPLAY_ERRORS=Y Likely publisher resource values: Executable:/home/<userName>/usr/bin/python PID file:/home/<userName>/cgi-bin/Zope/var/pcgi.pid Socket file:/home/<userName>/cgi-bin/Zope/var/pcgi.soc Module:/home/<userName>/cgi-bin/Zope/lib/python/Main.py Error Log:/home/<userName>/cgi-bin/Zope/var/pcgi.log Publisher:/home/<userName>/cgi-bin/Zope/pcgi/pcgi_publisher.py Versions of modules used: Resulting environment will probably appear to the publisher as: BOBO_DEBUG_MODE1 BOBO_REALM/home/<userName>/cgi-bin/Zope/Zope.cgi DOCUMENT_ROOT/usr/local/apache/htdocs GATEWAY_INTERFACECGI/1.1 HTTP_ACCEPTtext/html, application/xml;q=0.9, application/xhtml+xml;q=0.9, image/png, image/jpeg, image/gif, image/x-xbitmap, */*;q=0.1 HTTP_ACCEPT_CHARSETwindows-1252, utf-8, utf-16, iso-8859-1;q=0.6, *;q=0.1 HTTP_ACCEPT_ENCODINGdeflate, gzip, x-gzip, identity, *;q=0 HTTP_ACCEPT_LANGUAGEen HTTP_CONNECTIONKeep-Alive, TE HTTP_COOKIEWiki=rev&1&id&1001&randkey&857866977 HTTP_COOKIE2$Version=1 HTTP_HOST<siteName>.net HTTP_IF_MODIFIED_SINCEFri, 21 Nov 2003 07:31:35 GMT HTTP_TEdeflate, gzip, chunked, identity, trailers HTTP_USER_AGENTMozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) Opera 7.21 [en] INSTANCE_HOME/home/cgi-bin/public_html/Zope PATH/sbin:/bin:/usr/sbin:/usr/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/usr/X11R6/bin:/root/bin:/usr/ local/pgsql/bin:/usr/local/mysql/bin:/usr/local/apache/bin PCGI_DISPLAY_ERRORSY PCGI_ERROR_LOG/home/<userName>/cgi-bin/Zope/var/pcgi.log PCGI_EXE/home/<userName>/usr/bin/python PCGI_INFO_FILEZope.cgi PCGI_MODULE_PATH/home/<userName>/cgi-bin/Zope/lib/python/Main.py PCGI_NAMEZope PCGI_PID_FILE/home/<userName>/cgi-bin/Zope/var/pcgi.pid PCGI_PUBLISHER/home/<userName>/cgi-bin/Zope/pcgi/pcgi_publisher.py PCGI_SOCKET_FILE/home/<userName>/cgi-bin/Zope/var/pcgi.soc QUERY_STRINGinfofile=Zope.cgi REMOTE_PORT1340 REQUEST_METHODGET REQUEST_URI/~<userName>/cgi-bin/pcgifile.py?infofile=Zope.cgi SCRIPT_FILENAME/home/<userName>/cgi-bin/pcgifile.py SCRIPT_NAME/~<userName>/cgi-bin/pcgifile.py SERVER_ADMINwebmaster@<siteName>.net SERVER_NAME<siteName>.net SERVER_PORT80 SERVER_PROTOCOLHTTP/1.1 SERVER_SIGNATURE Apache/1.3.28 Server at <siteName>.net Port 80 SERVER_SOFTWAREApache/1.3.28 (Unix) PHP/4.3.4 mod_ssl/2.8.15 OpenSSL/0.9.7b

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Exception within ZServer hangs Zope
by Jure Koren 25 Nov '03

25 Nov '03

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, Zope users! Has anyone seen this? I causes zope to just hang, and I don't have a clue as to where to start looking. It seems it happens within the ZServer, but I couldn't find a line in the entire tree of Zope that would assign a suspicious value to that 'p' variable. Can anyone suggest how to detect this and at least restart Zope, as this is causing us service outages (the question is really how to properly programatically restart Zope, as if you push Restart Zope within the control panel). Is killing -15 zope processes safe? 2003-11-25T11:05:58 ERROR(200) ZServer uncaptured python exception, closing channel <ZServer.HTTPServer.zhttp_channel connected 192.168.0.56:1598 at 0x924a2b4 channel#: 124 requests:1> (exceptions.AttributeError:'unicode' object has no attribute 'more' [/var/home/jure/zope/ZServer/medusa/asyncore.py|poll|107] [/var/home/jure/zope/ZServer/medusa/asyncore.py|handle_write_event|402] [/var/home/jure/zope/ZServer/medusa/asynchat.py|handle_write|146] [/var/home/jure/zope/ZServer/medusa/asynchat.py|initiate_send|208] [/var/home/jure/zope/ZServer/medusa/asynchat.py|refill_buffer|195]) Traceback (most recent call last): File "/home/jure/zope/z2.py", line 913, in ? asyncore.loop() File "/var/home/jure/zope/ZServer/medusa/asyncore.py", line 200, in loop poll_fun (timeout, map) File "/var/home/jure/zope/ZServer/medusa/asyncore.py", line 111, in poll obj.handle_error() File "/var/home/jure/zope/ZServer/medusa/http_server.py", line 440, in handle_error asynchat.async_chat.handle_error (self) File "/var/home/jure/zope/ZServer/medusa/asyncore.py", line 425, in handle_error self.close() File "/var/home/jure/zope/ZServer/HTTPServer.py", line 325, in close p.more() # free up resources held by producer AttributeError: 'unicode' object has no attribute 'more' - -- Jure Koren, n.i. jure(a)aufbix.org, GPG pubkey @ http://aufbix.org/~i/public.key -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (GNU/Linux) iD8DBQE/wyLV9iFCvmuhrCIRAn/+AJ42J0XnVo9oeSq62BM+RnzH7EpmtgCgpFZV aXPTBG49Obl7Rj11o2N/KUA= =HwGb -----END PGP SIGNATURE-----

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tar.gz changing to tar.tar during download.
by Louis MacCubbin 25 Nov '03

25 Nov '03

Hello, When ever I try to download a tar.gz file from my Zope site, the extention changes to tar.tar. Why is this happening? Does anyone know how I can I fix it? The workaround for this is to rename the file back to xxx.tar.gz after it downloads. Thanks Louis

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