May 2001 - Zope - Zope lists

Zope Survey results posted
by Gary Graham 30 May '01

30 May '01

Digital Creations recently sent out a survey request to find out more about how Zope is being used. The results of that survey request have been posted. If you would care to view the survey summary see : http://www.zope.org/Members/gary/Zope_survey Thanks again to everyone for participating! --Gary Gary Graham gary.graham(a)digicool.com Digital Creations office : 540.361.1720 mobile : 540.840.3813 fax : 540.371.1201 main : 540.371.6909 www.digicool.com www.zope.com www.python.org www.zope.org

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RE: [Zope] ZEO start.py fails to start ZSS on Debian...
by sean.upton＠uniontrib.com 30 May '01

30 May '01

Well, it now works on my with the source release, so my ZSS is built off the source release, and my ZEO Clients are all Debian deb-packaged Zope installs. Seems like a fair compromise; I will debug it though, and send a not of my findings to the Debian package maintainer for Zope; hopefully a fix can be found. Does anyone know why it might work on Intel deb, but not on SPARC deb? Debian uses an auto-build system to build source for multiple platforms even though a given package maintainer may only build the packages on one. I wonder why this would cause what look to be identical installs (for the most part, same Zope, same python, same libc6) to act differently? Hopefully the answer is to debug start.py with the debugger, find out where my setup causes the except: pass, and attempt to figure out why this is happening. Thanks, Sean -----Original Message----- From: Tres Seaver [mailto:tseaver@palladion.com] Sent: Wednesday, May 30, 2001 5:20 AM To: sean.upton(a)uniontrib.com Cc: zope(a)zope.org Subject: Re: [Zope] ZEO start.py fails to start ZSS on Debian... sean.upton(a)uniontrib.com wrote: > I am running Debian testing (SPARC) with the 2.3.2-2 Zope deb, trying to > install ZEO, and am hung up on the storage server install becuase, even in > the simplest of cases, I cannot get lib/python/ZEO/start.py to do > anything... I get the same issue with ZEO 1.0b1 and 1.0b3. There are a > bunch of > try: ... > except: pass > statements in the start.py code, and I'm sure I'm getting hit with one of > them; it's too bad there are not more debugging messages in there... > > Since there are no tracebacks, below is the best I have (a shell transcript) > > Under Debian, Zope is installed at /usr/lib/zope as a program root (and thus > ZEO, unpacked here, with ZEO1.0b3/ZEO copied to lib/python, so that there is > a lib/python/ZEO). /var/lib/zope is the instance home and contains a var > (/var/lib/zope/var) directory with Data.fs, log, and pid files. > > Any help/thoughts would be appreciated... I would probably try to find the errant spot using PDB, e.g., I would drop the following line into the 'main()' function: import pdb; pdb.set_trace() Then, when you run the start script using '-D', the debugger will stop at that point, and you can single step, print variables, etc., using the "standard Python debugger", http://www.python.org/doc/1.5.2p2/lib/module-pdb.html If that doesn't help, or if you've found a bug, then I would ask for further help on the zodb-dev(a)zope.org list. Tres. -- =============================================================== Tres Seaver tseaver(a)digicool.com Digital Creations "Zope Dealers" http://www.zope.org

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RE: [Zope] ObjectManager problem
by Max Møller Rasmussen 30 May '01

30 May '01

> From: Casey Duncan [mailto:cduncan@kaivo.com] > The problem is that you are subclassing SimpleItem.Item and > ObjectManager which are incompatible base classes. SimpleItem.Item > defines its own objectIds method which *always* returns and > empty tuple > (because it is not a container). You should be able to safely > loose this > base class and all will be right with the world. Saved my day and restored my faith ... thanks Max M

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Help: Return and render an object (DTML doc or method) from python script.
by Gilles Lenfant 30 May '01

30 May '01

Hi, My project uses inclusion of objects (DTML doc or methods) which relative path is computed by a python script. <calling script> ... <dtml-var "myscript(argument)"> ... </calling script> The python script "myscript" computes the relative path of the DTML object to include (no problem till there) The problem is : how to have this target DTML document/method rendered in place of the <dtml-var "myscript(argument)"> ? In python, the (supposed) classical "return contex.getitem(path)" raises an AttributeError (no "getitem" attribute) Any hint for this ? TIA --Gilles

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Problems with ZopeTime
by Oliver Erlewein 30 May '01

30 May '01

Hi I'm getting this traceback when trying to work with ZopeTime: Traceback (innermost last): File D:\Zope\PortalSQS05\lib\python\ZPublisher\Publish.py, line 223, in publish_module File D:\Zope\PortalSQS05\lib\python\ZPublisher\Publish.py, line 187, in publish File D:\Zope\PortalSQS05\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook (Object: RoleManager) File D:\Zope\PortalSQS05\lib\python\ZPublisher\Publish.py, line 171, in publish File D:\ZOPE\PortalSQS05\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: index_html) File D:\Zope\PortalSQS05\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: index_html) File D:\ZOPE\PortalSQS05\lib\python\App\Factory.py, line 178, in index_html (Object: RoleManager) File D:\Zope\PortalSQS05\lib\python\OFS\DTMLMethod.py, line 189, in __call__ (Object: Forumbeitrag_addForm) File D:\ZOPE\PortalSQS05\lib\python\DocumentTemplate\DT_String.py, line 538, in __call__ (Object: Forumbeitrag_addForm) File D:\ZOPE\PortalSQS05\lib\python\DocumentTemplate\DT_Var.py, line 276, in render (Object: ZopeTime) KeyError: (see above) I call ZopeTime from within a Zclass (DTML-Method) with a line like this: <input type=hidden name="datum" value="<dtml-var ZopeTime fmt="%Y/%m/%d - %H:%M:%S">"> If I call as manager all goes well. The error occurs when I have a user with reduced rights. Do I need a certain right for ZopeTime? Can anybody give me a hint on why it gives me this error? Thanx a lot! Oliver -- Machen Sie Ihr Hobby zu Geld bei unserem Partner 1&1! http://profiseller.de/info/index.php3?ac=OM.PS.PS003K00596T0409a -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

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Python 2.1 on Solaris 2.6 with gcc 2.8.1 ?
by Kai Hofmann 30 May '01

30 May '01

Has someone experience with making Python 2.1 on SOlaris 2.6 with gcc 2.8.1? Here it seems that it tries to create shared libraries which won't link, because its missing some standard references (liba, ...) like free, malloc etc. Has someone fixed this - before I invest hours to do so? Thanks Kai -- Institut für Seeverkehrswirtschaft und Logistik http://www.isl.org/ Dipl.-Inform. Kai Hofmann mailto:hofmann@isl.org Universitaetsallee GW1 Block A phone:+49 421 22096-83 D-28359 Bremen fax:+49 421 22096-55

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Authorisation error handling
by Petr Knapek 30 May '01

30 May '01

Hi Zopists, I would like to ask you to give me some links on documentation connected with authorisation error handling in Zope. From John Chandler HOW-TO I know it is not possible to use standard_error_messagge DTML Method. This error is handled in other way. My problem is, I want to redirect user, who tries to authorize, to another page where anonymous access is possible and inform him about possible problems. There should be also possibility to try authenticate with new authorization. Thank you, Petr -- Petr Knápek Network Development NEXTRA Czech Republic s.r.o. http://www.nextra.cz/ V Celnici 10 / CZ - 117 21 Praha 1 / Czech Republic Tel: +420/2/96 355 111 / Mobile: +420/604-202 611 E-Mail: petr.knapek(a)nextra.com Contact address: Hlinky 114 / CZ - 603 00 Brno / Czech Republic Tel: +420/5/43 554 150 see Disclaimer http://www.nextra.cz/disclaimer/

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Fighting against crashes
by Christian Theune 30 May '01

30 May '01

HI. 'm fighting against Zope crashes that are not sooo obvious trivial. I have two error messages for you. Any kind of tip is welcome. THanks a lot. This is zope 2.3.2 running on python 2.0, Suse 7.1 2.2.18 Thanks so far. -- Christian Theune - ct(a)gocept.com gocept gmbh & co.kg - schalaunische strasse 6 - 06366 koethen/anhalt tel.+49 3496 3099112 - fax.+49 3496 3099118 mob. - 0178 48 33 981 reduce(lambda x,y:x+y,map(lambda x:chr(ord(x)^42),tuple('zS^BED\nX_FOY\x0b')))

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Re: [Zope] ZEO start.py fails to start ZSS on Debian...
by Tres Seaver 30 May '01

30 May '01

sean.upton(a)uniontrib.com wrote: > I am running Debian testing (SPARC) with the 2.3.2-2 Zope deb, trying to > install ZEO, and am hung up on the storage server install becuase, even in > the simplest of cases, I cannot get lib/python/ZEO/start.py to do > anything... I get the same issue with ZEO 1.0b1 and 1.0b3. There are a > bunch of > try: ... > except: pass > statements in the start.py code, and I'm sure I'm getting hit with one of > them; it's too bad there are not more debugging messages in there... > > Since there are no tracebacks, below is the best I have (a shell transcript) > > Under Debian, Zope is installed at /usr/lib/zope as a program root (and thus > ZEO, unpacked here, with ZEO1.0b3/ZEO copied to lib/python, so that there is > a lib/python/ZEO). /var/lib/zope is the instance home and contains a var > (/var/lib/zope/var) directory with Data.fs, log, and pid files. > > Any help/thoughts would be appreciated... I would probably try to find the errant spot using PDB, e.g., I would drop the following line into the 'main()' function: import pdb; pdb.set_trace() Then, when you run the start script using '-D', the debugger will stop at that point, and you can single step, print variables, etc., using the "standard Python debugger", http://www.python.org/doc/1.5.2p2/lib/module-pdb.html If that doesn't help, or if you've found a bug, then I would ask for further help on the zodb-dev(a)zope.org list. Tres. -- =============================================================== Tres Seaver tseaver(a)digicool.com Digital Creations "Zope Dealers" http://www.zope.org

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Re: [Zope] Structured Text with Images in regular Zope?
by Tres Seaver 30 May '01

30 May '01

Michel Pelletier <michel(a)digicool.com> wrote: > On Tue, 29 May 2001, Mike Renfro wrote: > > >> On Tue, May 29, 2001 at 11:10:36AM -0400, marc lindahl wrote: >> > >> > I concur -- it would be nice to add an easy image tag in STX. Just >> > as double quotes is supposed to create a link, some other syntax to >> > generate an OBJECT tag (or, intelligently, IMG if an image... for, >> > ugh, NS4 compatibility), for inclusion of images, sound, video, etc. > >> >> The syntax is already there in the code for the Zope book -- I forgot >> to mention that earlier. My problem is in making the book's >> StructuredText code work with regular Zope. Making it work with the >> STX_Document ZClass would be even better. > > > The book code is in Zope too, it's just not exposed in any way. You would > have to do your processing in an external method. > > Zope does a really poor job of exposing stx to users. The only interface > is <dtml-var fmt=structured-text> and that sucks for a few reasons: > > You can't use other input parser, like for images. > > You can't use other outputs, like docbook > > The stx is turned into a dom and transformed every time, instead of > being cached, making it slow. > > I had written a pure python product called STXDocument that exposed all of > this functionality through an API and addable object. Someone at DC > however, probably mistakenly, deleted it from the CVS repository (or moved > it to where I can't find it) without informing me, so it's gone. > > I suggest using an External Method to hack you way to the > StructuredText.HTMLWithImages.HTMLWithImages class. The syntax is similar > to a link in stx: > > "Image alt tag contents":img:/path/to/image Here is how we added "embedded images" in the CMF (just recently): - Created a utility function, '_format_stx', with two supporting classes, 'CMFDocumentWithImages' and 'CMFHtmlWithImages':: # # StructuredText handling. # import StructuredText from StructuredText.HTMLWithImages import HTMLWithImages _STXDWI = StructuredText.DocumentWithImages.__class__ class CMFDocumentClass( StructuredText.DocumentWithImages.__class__ ): """ Override DWI to get '_' into links. """ _URL_AND_PUNC = r'([a-zA-Z0-9_\@\.\,\?\!\/\:\;\-\#\~]+)' def doc_href( self , s , expr1 = re.compile( _STXDWI._DQUOTEDTEXT + "(:)" + _URL_AND_PUNC + _STXDWI._SPACES ).search , expr2 = re.compile( _STXDWI._DQUOTEDTEXT + r'(\,\s+)' + _URL_AND_PUNC + _STXDWI._SPACES ).search ): return _STXDWI.doc_href( self, s, expr1, expr2 ) CMFDocumentClass = CMFDocumentClass() class CMFHtmlWithImages( HTMLWithImages ): """ Special subclass of HTMLWithImages, overriding document(). """ def document(self, doc, level, output): """\ HTMLWithImages.document renders full HTML (head, title, body). For CMF Purposes, we don't want that. We just want those nice juicy body parts perfectly rendered. """ for c in doc.getChildNodes(): getattr(self, self.element_types[c.getNodeName()])(c, level, output) CMFHtmlWithImages = CMFHtmlWithImages() def _format_stx( text, level=1 ): """ Render STX to HTML. """ st = StructuredText.Basic( text ) # Creates the basic DOM if not st: # If it's an empty object return "" # return now or have errors! doc = CMFDocumentClass( st ) html = CMFHtmlWithImages( doc, level ) return html - Changed our Docuement class (as well as other STX clients) to call '_format_stx' whenever the content changes, capturing the result as the 'cooked' version. - We render the Document without using the 'fmt="strucutred-text"' bit, e.g.: <dtml-var standard_html_header> <dtml-var getCookedHTML> <dtml-var standard_html_footer> The code for '_format_stx' whould package OK as an ExternalMethod, I think. Hope this helps, Tres. -- ======================================================== Tres Seaver tseaver(a)digicool.com Digital Creations "Zope Dealers" http://www.zope.org

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