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zope.conf question
by David Pratt 26 Apr '06

26 Apr '06

Hi. Is there a way to create an INSTANCE_HOME variable in zope.conf more dynamically than hardcoding the path. I want an app to be platform portable so this will be different? Alternatively, I have been considering overriding zope.conf settings for use in zope.app.twisted.main and an interested in any suggestion for best approach to this. In z3 services are started with: service = setup(load_options(args)) args are a list ['-C', '/path/to/my/instance/etc/zope.conf'] In load_options, the default zope.conf.in is looked for else it gives it a value of None then options are utilized with options.realize(args) Regards, David

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zope unresponsive
by Andy Altepeter 25 Apr '06

25 Apr '06

Hey All, I'm experiencing hanging issues with my Zope-2.8.6+zeo setup/ RHEL 4. The hanging isn't categorized by 100% cpu usage. Actually, I had the same issues using 2.8.5, but I've upgraded since then. Here's the situation: I have one zeo client connected to a zeo server on the same box. Apache sits in front, using RewriteRules to request data from zope. After some time (could be 2 minutes or an hour), the zeo client stops responding. Apparently this is called a deadlock or a "spinning zope". I've tried using gdb to attach to the zeo client pid, and use the recipe http://zopelabs.com/cookbook/1073504990 to print a traceback, but the call always aborted with SIGABORT. I've captured all of the requests sent to zope during an uptime window (via Z2.log), and using wget to "replay" the requests. I've also pulled from apache's rewrite log all requests proxied to zope, thinking the Z2.log only writes finished requests. I setup another zeo client (on the same box, different port) and used wget to replay these captures as well. Just running these captures does not cause zope to hang. In fact, I have not been able to cause zope to hang by replaying. There doesn't seem to be any one url or sequence of urls that cause zope to hang. I've tried reinstalling the zope instance, but that didn't help. I've tried using requestprofiler.py to inspect the trace.log. This shows a high number of "hangs", but not on a url that actually triggers a spinning zope. Basically, that's where I'm stuck. Is there anything else I can try? Am I missing something? Thanks for the help, Andy

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keeping files in the local filesystem
by gf 25 Apr '06

25 Apr '06

Hi, I am a Zope newbie and would appreciate some counsel from experienced Zope users. I have come across several products (e.g. ExternalFile) for keeping files in the local filesystem. I was wondering about the wisdom of keeping objects, such as images, dtml documents, and page templates, in the local filesystem. On the face of it, it seems like a good idea since tools like version control/management and backup software could manage the files directly. What do you see as the upsides and downsides? Thank you for your input. Best Regards, gyro

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Zope crashes on request of certain page
by Sven Jacobs 25 Apr '06

25 Apr '06

Dear Zope list, I have a serious problem with Zope. Every time a certain page is requested by a web browser for the second or third time (first time always works) the whole Zope server crashes :-( The only thing special about this page are calls of external Python methods from a custom extension. These methods don't do any special magic. They just open a MySQL database (using the MySQLdb module version 0.9.1) and return some HTML output. I was able to catch a somewhat informative error message when Zope was running in debug mode: 2006-03-27T12:18:57 PANIC(300) z2 Startup exception Traceback (innermost last): File /opt/zope/z2.py, line 495, in ? (Object: ZLogger) File <string>, line 1, in ? File /opt/zope/lib/python/Zope/__init__.py, line 37, in ? File /opt/zope/lib/python/ZODB/FileStorage.py, line 202, in __init__ File /opt/zope/lib/python/ZODB/lock_file.py, line 29, in lock_file StorageSystemError: Could not lock the database file. There must be another process that has opened the file. Operating system is SuSE Linux 8.0, Zope version is 2.5.0, Python 2.2, MySQL 3.23.48. I know, pretty old but upgrading any of these software components should be avoided due to emerging costs unless absolutely necessary! So if you have any idea how to fix this problem besides "upgrade to the newest versions" I would be glad to here from you! Thank you very much! -- Sincerely yours Sven Jacobs

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ordinal not in range error in StringIO.py
by Roman Susi 25 Apr '06

25 Apr '06

hi! My code produces the following traceback File "/opt/Zope-2.9.1/lib/python/ZPublisher/Publish.py", line 40, in call_object result=apply(object,args) # Type s<cr> to step into published object. File "/var/zope-2.9/Products/Five/browser/metaconfigure.py", line 403, in __call__ return self.index(self, *args, **kw) File "/opt/Zope-2.9.1/lib/python/Shared/DC/Scripts/Bindings.py", line 311, in __call__ return self._bindAndExec(args, kw, None) File "/opt/Zope-2.9.1/lib/python/Shared/DC/Scripts/Bindings.py", line 348, in _bindAndExec return self._exec(bound_data, args, kw) File "/opt/Zope-2.9.1/lib/python/Products/PageTemplates/PageTemplateFile.py", line 110, in _exec return self.pt_render(extra_context=bound_names) File "/opt/Zope-2.9.1/lib/python/Products/PageTemplates/PageTemplate.py", line 105, in pt_render return output.getvalue() File "/opt/lib/python2.4/StringIO.py", line 272, in getvalue self.buf += ''.join(self.buflist) UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 8: ordinal not in range(128) when frontpage is published. I have analysed self.buflist and it seems that unicode strings are mixed with usual strings. Unicode strings come from .mo file. So, the question is why ZPublisher doesnt coerce different string before serving and what can I do in this situation? .po file has utf8 encoding. Publisher encoding is utf8. Quick and very dirty solution is to mend StringIO.py... Does anybody has better cure? Thanks! Regards, Roman Suzi

2 1

submission
by Khachatur Yengibaryan 25 Apr '06

25 Apr '06

zope-request(a)zope.org wrote: >Send Zope mailing list submissions to > zope(a)zope.org > >To subscribe or unsubscribe via the World Wide Web, visit > http://mail.zope.org/mailman/listinfo/zope >or, via email, send a message with subject or body 'help' to > zope-request(a)zope.org > >You can reach the person managing the list at > zope-owner(a)zope.org > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Zope digest..." > > >Today's Topics: > > 1. Re: Permissions, files and folders (Paul Winkler) > 2. Re: REQUEST.form variables order (Gaute Amundsen) > 3. Rendering Product by index_html (Thomas Adams) > 4. Re: Rendering Product by index_html (Andreas Jung) > 5. zope-2.8.4 and ZopeXMLMethods (Milos Negovanovic) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Fri, 21 Apr 2006 12:45:43 -0400 >From: Paul Winkler <pw_lists(a)slinkp.com> >Subject: Re: [Zope] Permissions, files and folders >To: zope(a)zope.org >Message-ID: <20060421164543.GB9625(a)slinkp.com> >Content-Type: text/plain; charset=us-ascii > >On Fri, Apr 21, 2006 at 09:54:15AM +0200, Erik Billing wrote: > > >>Btw, what editor would you recommend for writing python outside Zope. I've >>frequently used Eclipse with PyDev before, but it's a bit slow and heavy. >>I've looked around a bit on the free editors without finding anything I like >>so I'm thinking it might be worth trying a commercial editor. What do you >>guys use? >> >> > >Emacs :-) >It takes a bit of work to get it set up nicely, but there are some >really nice features like good pdb integration. > >e.g. try this: put a "pdb.set_trace()" somewhere in your code, and >then run the program from a shell within emacs - e.g. you can start a >shell by typing "M-x shell", and then type the command to run your >program. When you enter pdb, you can step around >the code and emacs shows you where you are in another buffer, opening >modules as you step into them. I've said it before: All hail Ken Manheimer! > >I'm sure plenty of IDEs can do stuff like that, but I'm surprised how >many emacs users don't seem to know it's there. > >(dunno if all that works on Windows, never tried.) > >The code-completion support is pretty rudimentary, though. It seems to >only be good for repeating symbols already in your source file. > >And no built-in browsing of documentation afaict. > > >

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ftp server deadlocking zope
by Michael Kaplan 23 Apr '06

23 Apr '06

Hello, I have a problem with the Medusa FTP server deadlocking Zope completely. I'm using Zope 2.8.5-final, python 2.3.5, sunos5 with standard port settings and port-base 1500, e.g. ZServer.HTTPServer.zhttp_server (Port: 9580) ZServer.FTPServer.FTPServer (Port: 9521) I can connect to the ftp server > ftp localhost 9521 Connected to localhost. 220 FTP server (Medusa Async V24763 [experimental]) ready. Name (localhost:root): ******* 331 Password required. Password: ****** 230 Login successful. ftp> cd dir 250 CWD command successful. The standard ftp commands *cd*, *lcd*, *put* and *get* work fine. But if I try to use *ls*, *dir* or *mkdir* Zope seems to arrive in an infinite loop blocks one cpu completely and has to be restarted. Thanks in advance, Michael

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Rndering Products
by Thomas Adams 23 Apr '06

23 Apr '06

Hello, on an own product I've coded this: index_html = Globals.DTMLFile('dtml/viewLinkListItem', globals()) __str__ = index_html If I start now Zope again a message PROBLEM(100) Init Ambiguous name for method of Products.KBProducts.kbarticle_impl.LinkListItem: "__str__" != "index_html" appears. Anything behave as it should, so the string representation of this product works if i For instance call it up within a dtml-loop: <dtml-in getLinks()> <dtml-var sequence-item> </dtml-in> In this loop the LinkListItem Product is rendered as defined in index_html Does anxboy has any ideas about the Zope message ?? Thanks in advance Thomas Adams

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zope-2.8.4 and ZopeXMLMethods
by Milos Negovanovic 23 Apr '06

23 Apr '06

Hi, i am having trouble with running ZopeXMLMethods on zope-2.8.4. Error is: * 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.PageTemplates.PageTemplateFile, line 110, in _exec * Module Products.PageTemplates.PageTemplate, line 104, in pt_render <PageTemplateFile at /scratch/create> * Module TAL.TALInterpreter, line 206, in __call__ * Module TAL.TALInterpreter, line 250, in interpret * Module TAL.TALInterpreter, line 651, in do_loop_tal * Module Products.PageTemplates.TALES, line 206, in setRepeat * Module Products.PageTemplates.TALES, line 221, in evaluate URL: create Line 70, Column 6 Expression: standard:'here/availableProcessors' Names: {'container': <App.ProductContext.__FactoryDispatcher__ object at 0xb68bb06c>, 'context': <App.ProductContext.__FactoryDispatcher__ 0xb68bb06c>object at 0xb68bb06c>, 'default': <Products.PageTemplates.TALES.Default instance at 0xb721fe8c>, 'here': <App.ProductContext.__FactoryDispatcher__ object 0xb721fe8c>at 0xb68bb06c>, 'loop': <Products.PageTemplates.TALES.SafeMapping object at 0xb481980c>, 'modules': 0xb481980c><Products.PageTemplates.ZRPythonExpr._SecureModuleImporter 0xb481980c>instance at 0xb712402c>, 'nothing': None, 'options': {'args': ()}, 'repeat': <Products.PageTemplates.TALES.SafeMapping object at 0xb481980c>, 'request': <HTTPRequest, 0xb481980c>URL=http://piccolo:8080/scratch/manage_addProduct/ZopeXMLMethods/create>, 'root': <Application at >, 'template': <PageTemplateFile at /scratch/create>, 'traverse_subpath': [], 'user': z00root} * Module Products.PageTemplates.Expressions, line 185, in __call__ * Module Products.PageTemplates.Expressions, line 180, in _eval * Module Products.PageTemplates.Expressions, line 85, in render It happens when i try to add 'XSLT Method' (as described in short tutorial provided with the product). Something similar has already been reported in this thread: http://mail.zope.org/pipermail/zope/2005-September/161412.html Any way that i can fix this? Regards Milos

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Rendering Product by index_html
by Thomas Adams 22 Apr '06

22 Apr '06

Hello, on an own product (derived from ObjectManager) I try to code a render method, therefore I've coded this first def index_html(self): return Globals.DTMLFile('dtml/viewKBArticle',globals()) the result of calling an URLl like this .../MyArticle/index_html was that the above mentioned DTML-File was completely rendered as html quoted text like this : lt;?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> ... etc. Then I made a search in the mailing list and try this: myIndex = Globals.DTMLFile('dtml/viewKBArticle',globals()) def index_html(self): return self.myIndex(self, self.REQUEST) this results in : *Error Type: TypeError* *Error Value: unsubscriptable object * Traceback (innermost last): Module ZPublisher.Publish, line 101, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 39, in call_object Module Products.KBProducts.kbarticle_impl, line 440, in index_html Module Shared.DC.Scripts.Bindings, line 306, in __call__ Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec Module App.special_dtml, line 175, in _exec Module DocumentTemplate.DT_In, line 685, in renderwob Module OFS.ObjectManager, line 656, in __getitem__ Module OFS.ObjectManager, line 241, in _getOb TypeError: unsubscriptable object At last I try this: index_html = None __call__ = Globals.DTMLFile('dtml/viewKBArticle',globals()) This results also in a TypeError (traceback see above) Has anyboby any ideas?? Current Zope is 2.7.3, Python 2.3.4 on Windows XP SP2 Thanks in advance Thomas Adams

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