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Ann: Free Zope Hosting Available Again
by Chris Withers 01 Aug '00

01 Aug '00

New Information Paradigms Ltd is happy to announce that their Free Zope Hosting Option is once again available! Furthermore, the price of the Professional Zope Hosting Option has been halved to £100 per month while still providing the same high quality service. (£100 is roughly equal to $150 or 160 Euros) NIP's hosting options are briefly described below, but please see http://www.nipltd.net for full details. - Free Zope Hosting This hosting option provides an opportunity to explore Zope and evaluate it in a reliable way. We also hope that people within the Zope community can publicly host useful Zope applications without any financial burden. - Professional Zope Hosting If you have a commercial Zope application and need somewhere secure and reliable to host it, then this is the option for you. It is based around an instance of Zope and a relational database for each customer with secure access allowing a high degree of customisation. - Enterprise Zope Hosting This option provides a totally custom combination of hardware, software and consulting that you will need if you intend to use Zope to provide an enterprise wide solution. For more information see http://www.nipltd.net/ or email us at hosting(a)zope.nipltd.com

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Newbe external method question
by Gaspard, Bradley S 01 Aug '00

01 Aug '00

I have what I fear is a very basic question ... I want to write an external method that first determines all of the objects in a folder that posses a certain property. I know how to find the object ids but once I do that how do I then determine which contain the property I am searching for?? Thanks for any help. Brad

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RE: [Zope] tracebacks
by Tom Deprez 01 Aug '00

01 Aug '00

>A) your SQL is wrong, you want a VARCHAR not a CHAR there. and i doubt >'NOW' is a valid value for a TIMESTAMP type in your DB. You'll be wanting a >SQL function like Date(), not a string. Probably. Look in your DB docs. >Not that I'm much of a SQL person - someone else will probably correct me. I'm using an Interbase database. You can use CHAR and VARCHAR. The last one is a variable char, while the first has a fixed length. Anyway, this was just an example out of my head to explain what I'm experiencing. 'NOW' can be used in Interbase as it will insert the current date&time when a value is not given for a record. (Although, I'm not sure it will work through Zope, I'm just curious :-) ). Anyway, '12/07/2000' should work. >B) Now why you'd get a pickling error when you've got bad SQL i don't know - >and 'cannot pickle objects' is a blantant lie. Surely that's what >pickling's all about. MY_NAME VARCHAR(20) DEFAULT 'tom', gives the same error. And yes, it's strange that I get an error with a default literal value. Could it be that Zope handles the tom in 'tom' as a python expresion or something? >Anyway you read the traceback from bottom to top. >The error occured on line 348 of Connection.py, which threw an error in >Transaction.py, blah blah, which threw an error in Publish.py, which caused >Zope to exit the publisher and print the stack trace. Thanks Seb, this is what I wanted to know about the traceback. Tom. >> -----Original Message----- >> From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of Tom >> Deprez >> Sent: 01 August 2000 12:41 >> To: zope(a)zope.org >> Subject: [Zope] tracebacks >> >> >> Hi, >> >> Can somebody explain me how you can use the given tracebacks >> to find the >> possible error? For example, I get the following error and I know what >> causes it, but I don't know where I must go to find the >> code-line where the >> error starts: >> >> I get the following error when I use a table in which a field >> is defined >> with a default string value. >> >> eg : >> >> MY_NAME CHAR(20) DEFAULT 'tom' >> MY_DATE TIMESTAMP DEFAULT '6/07/2000' >> MY_DATE TIMESTAMP DEFAULT 'NOW' >> >> --- >> Zope Error >> Zope has encountered an error while publishing this resource. >> >> Error Type: cPickle.PicklingError >> Error Value: Cannot pickle objects. >> --- >> >>  >> >> >> Thanks for any advice. >> >> Tom >> >> _______________________________________________ >> Zope maillist - Zope(a)zope.org >> http://lists.zope.org/mailman/listinfo/zope >> ** No cross posts or HTML encoding! ** >> (Related lists - >> http://lists.zope.org/mailman/listinfo/zope-announce >> http://lists.zope.org/mailman/listinfo/zope-dev ) >> >> >

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Re: [Zope] tracebacks
by Seb Bacon 01 Aug '00

01 Aug '00

A) your SQL is wrong, you want a VARCHAR not a CHAR there. and i doubt 'NOW' is a valid value for a TIMESTAMP type in your DB. You'll be wanting a SQL function like Date(), not a string. Probably. Look in your DB docs. Not that I'm much of a SQL person - someone else will probably correct me. B) Now why you'd get a pickling error when you've got bad SQL i don't know - and 'cannot pickle objects' is a blantant lie. Surely that's what pickling's all about. Anyway you read the traceback from bottom to top. The error occured on line 348 of Connection.py, which threw an error in Transaction.py, blah blah, which threw an error in Publish.py, which caused Zope to exit the publisher and print the stack trace. seb. > -----Original Message----- > From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of Tom > Deprez > Sent: 01 August 2000 12:41 > To: zope(a)zope.org > Subject: [Zope] tracebacks > > > Hi, > > Can somebody explain me how you can use the given tracebacks > to find the > possible error? For example, I get the following error and I know what > causes it, but I don't know where I must go to find the > code-line where the > error starts: > > I get the following error when I use a table in which a field > is defined > with a default string value. > > eg : > > MY_NAME CHAR(20) DEFAULT 'tom' > MY_DATE TIMESTAMP DEFAULT '6/07/2000' > MY_DATE TIMESTAMP DEFAULT 'NOW' > > --- > Zope Error > Zope has encountered an error while publishing this resource. > > Error Type: cPickle.PicklingError > Error Value: Cannot pickle objects. > --- > >  > > > Thanks for any advice. > > Tom > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) > >

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tracebacks
by Tom Deprez 01 Aug '00

01 Aug '00

Hi, Can somebody explain me how you can use the given tracebacks to find the possible error? For example, I get the following error and I know what causes it, but I don't know where I must go to find the code-line where the error starts: I get the following error when I use a table in which a field is defined with a default string value. eg : MY_NAME CHAR(20) DEFAULT 'tom' MY_DATE TIMESTAMP DEFAULT '6/07/2000' MY_DATE TIMESTAMP DEFAULT 'NOW' --- Zope Error Zope has encountered an error while publishing this resource. Error Type: cPickle.PicklingError Error Value: Cannot pickle objects. ---  Thanks for any advice. Tom

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Re: Stability probs on Solaris? (Was: [Zope] Trouble installing on Solaris (fwd)) Solaris (fwd))
by Paul Browning 01 Aug '00

01 Aug '00

I thought I'd forward (with Tone's consent) an exchange that happened off list. We've been having problems in Bristol with Zope 2.1.6 dying under Solaris 7. (Sorry - no hard info about this, no obvious pattern.) The consensus seems to be that things appear to better with Zope 2.2 - does anyone else's experience support this? Paul --- Begin Forwarded Message --- Date: Tue, 1 Aug 2000 09:49:22 +0100 From: Tony McDonald <tony.mcdonald(a)ncl.ac.uk> Subject: Re: Stability probs on Solaris? (Was: [Zope] Trouble installing on Solaris (fwd)) Sender: Tony McDonald <tony.mcdonald(a)ncl.ac.uk> To: Paul Browning <paul.browning(a)bristol.ac.uk>, Paul.Smith(a)bristol.ac.uk Reply-To: Tony McDonald <tony.mcdonald(a)ncl.ac.uk> Message-ID: <v04220884b5ac3db62b7b(a)[128.240.198.13]> At 7:07 am +0100 1/8/00, Paul Browning wrote: >I know Tony McDonald in Newcastle has complained about >how slow Zope is on a Sun Enterprise box up there (running >3 times as slow as on his desktop iMac as I recall ...) >but I don't recall him reporting stability problems. I've >copied this to Tone. It's weird - the python 'pystones' benchmark runs half as fast as my iMac, but Reportlab (an *excellent* PDF library in Python) runs like lightning on our Sun iron. Our servers are all pretty stable here now. We've upgraded a box to Solaris 8 and I've compiled (from src) Zope 2.2.0 on it and it's working fine. In fact, I'm using the INSTANCE_HOME, PYTHON_HOME environment variables to point to *one* installation of 2.2.0 and have 5-6 servers running from that. Very nice. >After playing with Zope on NT for a while, I decided it was time to try >it on Solaris. I have duly downloaded the file, followed the >installation instructions for the precompiled binary version, but when >I run ./install I get get the following error: > >--------------------------------------------------------------------------- >--- >Compiling python modules >ld.so.1: /work3/cultivate-eu/Zope-2.1.6-solaris-2.6-sparc/bin/python: >fatal: relocation error: file >/work3/cultivate-eu/Zope-2.1.6-solaris-2.6-sparc/bin/python: symbol >fseeko: referenced symbol not found >Killed What I do is % python w_pcgi.py and % python wo_pcgi.py and this does seem to work - of course, this implies a working Pyton setup from src. I've never tried the ./install script (in fact, I don't think I've ever seen it!) I do know that the LD_LIBRARY_PATH env variable is critical if you're using shared libraries (eg MySQL, LDAP etc). My variable is % printenv LD_LIBRARY_PATH /usr/local/lib/:/usr/lib:/usr/local/ssl/lib:/usr/local/lib/mysql (note the mysql library path too...) HTH tone ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project http://nle.ncl.ac.uk/ The Medical School, Newcastle University Tel: +44 191 222 5888 Fingerprint: 3450 876D FA41 B926 D3DD F8C3 F2D0 C3B9 8B38 18A2 --- End Forwarded Message --- -- The Library, Tyndall Avenue, Univ. of Bristol, Bristol, BS8 1TJ, UK E-mail: paul.browning(a)bris.ac.uk URL: http://www.bris.ac.uk/

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ZPatterns make problem part2
by Owen Smith 01 Aug '00

01 Aug '00

I installed the dev version of python which solved my first problem but when I do a make I get this zope@phonix:/usr/local/dc/zope/lib/python/Products/ZPatterns$ make gcc -fPIC -I../../ZODB -I../../../Components/ExtensionClass -g -O2 -I/usr/include/python1.5 -I/usr/include/python1.5 -DHAVE_CONFIG_H -c ./DynPersist.c In file included from ./DynPersist.c:1: ../../ZODB/cPersistence.h:89: ExtensionClass.h: No such file or directory make: *** [DynPersist.o] Error 1 Am I missing something? / the point!? reading http://www.digicool.com/releases/ExtensionClass/ it says that ExtensionClass is part of Zope and I cant find any mention of this on zope.org Thanks Owen

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ZUBB on Zope 2.2 - bug?
by Arjan Scherpenisse 01 Aug '00

01 Aug '00

Hi there, i think ive found a bug in the new ZUBB (0.5.0) on Zope 2.2. After replying on a topic, it isnt possible anymore to view that posting and its replies on it. It says: Error Type: AttributeError Error Value: 'None' object has no attribute 'created' And the traceback is: Traceback (innermost last): File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/lib/zope/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: 00000003) File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/lib/zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: index_html) File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: index_html) File /usr/lib/zope/lib/python/OFS/DTMLMethod.py, line 167, in __call__ (Object: index_html) File /usr/lib/zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: index_html) File /usr/lib/zope/lib/python/DocumentTemplate/DT_Util.py, line 337, in eval (Object: item_index_html(_.None, _)) (Info: _) File lt;stringgt;, line 0, in ? File /usr/lib/zope/lib/python/OFS/DTMLMethod.py, line 163, in __call__ (Object: item_index_html) File /usr/lib/zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: item_index_html) File /usr/lib/zope/lib/python/TreeDisplay/TreeTag.py, line 155, in render (Object: a tree tag) File /usr/lib/zope/lib/python/TreeDisplay/TreeTag.py, line 261, in tpRender (Object: 00000003) File /usr/lib/zope/lib/python/TreeDisplay/TreeTag.py, line 347, in tpRenderTABLE (Object: 00000003) AttributeError: (see above) I hope this is useful, cu, -- Arjan Scherpenisse acscherp(a)wins.uva.nl may the source be with you === http://www.gnu.org ===

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#zope-france
by Luc Tonin 01 Aug '00

01 Aug '00

les utilisateur francais de zope sont cordialement invité à nous rejoindre sur le channel irc #zope-france (serveur irc.zope.net port 6667) Luc TONIN ------------------------------ Développeur Web ------------------------------ Multithématiques http://www.multithematiques.com Chaines thématiques sur câble et satellite Centre Jean Monet 03 82 24 00 42 Longlaville +333 82 24 00 42 54400 Longwy

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copying and pasting Zclass instances?
by Darran Edmundson 01 Aug '00

01 Aug '00

Can someone point me towards docs that describe how to add copy/paste ability to my ZClass? At the moment Zope (2.1.6) throws an exception when I attempt to paste with the message "The object <id> does not support this operation". I have a nagging feeling that Zope doesn't have this ability, though I'd love to be proved wrong. Cheers, Darran.

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