May 2008 - Zope - Zope lists

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.

4 6

Multithreading sessions
by Jon Emmons 04 Jun '08

04 Jun '08

Dear Zope Users group, I am running zope 2.9.4 and have observed that it will not simultaneously serve pages to my users. For Example: User 1 requests data that takes the MySQL server 30 seconds to retrieve Meanwhile. User 2 wants to log on User 2 will not be served the logon page until user 1's query has finished. Is this typical Zope behavior? How do I get Zope to serve pages, run python scripts, etc. to multiple users simultaneously? Thanks, Jon Emmons

9 21

PageTemplates len() of unsized object
by Giampiero Benvenuti 02 Jun '08

02 Jun '08

Hello list, after the upgrade from zope2.9.7 to 2.10.6 i get this error in the event log: 2008-05-24T09:31:32 ERROR Zope.SiteErrorLog http://myurl/error_log/manage_main Traceback (innermost last): Module ZPublisher.Publish, line 119, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 42, in call_object Module Shared.DC.Scripts.Bindings, line 313, in __call__ Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec Module Products.PageTemplates.PageTemplateFile, line 129, in _exec Module Products.PageTemplates.PageTemplate, line 89, in pt_render Module zope.pagetemplate.pagetemplate, line 117, in pt_render Module zope.tal.talinterpreter, line 271, in __call__ Module zope.tal.talinterpreter, line 346, in interpret Module zope.tal.talinterpreter, line 379, in do_startEndTag Module zope.tal.talinterpreter, line 412, in do_startTag TypeError: len() of unsized object If I click on ZMI "error_log" i just get: Error Type: TypeError Error Value: len() of unsized object Can someone explain to me what is going on? Your help is very much appreciated. Giampiero

4 7

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

6 7

zope-memory-readings
by Peter Bengtsson 30 May '08

30 May '08

Check it out http://code.google.com/p/zope-memory-readings/ Perhaps useful -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com

3 2

Displaying Graphs using TAL
by Andyy 30 May '08

30 May '08

Hello, I am using Plone3 and zope2.10 I am trying *MatPlotLib graphics library* to generate graphs and chart. It gets displayed well on zope, but *i need to display it using page templates on one of the page on my plone site*. How do i Go about it? I am able to display it but not using standard plone template. Please help me how do i do that. Thanks!

4 7

MailBoxer mime/html mail
by wchr 29 May '08

29 May '08

hi, is MailBoxer capable of (re)sending mime-encoded html mails (with attachments, embedded images) to the recipients/members of a list? or does it force the conversion to plain text mail? thx /wolfie

1 1

Re: [Zope] Multithreading sessions
by Jon Emmons 28 May '08

28 May '08

Jens, Thanks for your input. Unfortunately, I am out of the office this week. When I return I will be trying to resolve this issue. I don't believe it has squat to do with my Database at all, so I will be setting up some scenarios where I am making simultaneous requests, requiring no DB access. I will echo the data to my screen, hopefully I will see an interwoven jumble of characters as my web server is sending text "simultaneously" to multiple clients. If I don't see an interwoven jumble of stuff representing the various threads, then my problem is more fundamental than DB contention. I appreciate everyone's help. Jon Emmons On Fri, May 23, 2008 at 1:55 PM, Andreas Jung <lists(a)zopyx.com> wrote: > > > --On 23. Mai 2008 12:31:50 -0500 Jens Vagelpohl <jens(a)dataflake.org> > wrote: > > >> On May 23, 2008, at 11:49 , Jon Emmons wrote: >> >>> Another thought I had, is that Zope has only one python interpreter >>> running, >>> pretty much forcing all processing to be serial by default given >>> what you've >>> just said. >>> >> >> Sorry, that's all baloney. Just like blindly hiking the number of threads >> or the ZODB database connection pool size. Zope can handle more than one >> concurrent request. >> >> I would take a close look at the Zope database adapter for your >> relational database you are using. Some are not thread-enabled and will >> serialize database access. >> > > Not much to be added. Either your backend server blocks further requests > (as indicated earlier by a database lock) or some extension module is > holding the GIL. We have seen situation where Python did not perform a > thread switch while working on a complex regular expression operation in one > thread (preventing a thread switch over ten seconds and longer). > > Andreas > _______________________________________________ > 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 ) > >

1 0

saving PIL Images
by Gaurav Girotra 28 May '08

28 May '08

Hello I am using Plone3 and zope 2.10, I need to save images generated through MatplotLib Graphs using External Methods to my zope site or to my linux file system. When i try to save using im.save("/zope/zeocluster/Extemsions") folder i get Permission denied error. Can anyone Help me in saving images to the file system.

3 2