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RE: [Zope] Problem with external methods in ZOPE
by Passin, Tom 09 Sep '03

09 Sep '03

[Miguel Garcia] Hi, I'm New with Zope, and I need to make a external method to open a file, search some things and return those values, I have the script already make in Python. When I run in Python it runs fine, but when I put it on the extension folder of Zope and added the external method in the Zope folder where I need to start the search, this returrn an error that say " Zope Error Zope has encountered an error while publishing this resource. Error Type: IOError Error Value: [Errno 2] No such file or directory: 'chr1/CDS.htm'" The external method is in a folder called database, inside that folder are 14 folders called chr1, chr2, chr3 etc..., and inside any folder is a DTML document called CDS.htm. Please help me with this because I don't know what's the problem. [Tom P] The external method uses whatever default path is in effect when it is called. Of course, it is not likely to be the path that you want. You should not try to control that. Instead, you should make sure that your data files are in a location known to the external method. BTW, the external method would best be in the Extensions folder rather than some subfolder. There are several ways to get a known path. Here are some of them - 1) Hard code the path into the code. This is the least desirable approach, because the code will break if you move the installation of the data. But it may serve for testing purposes. 2) Put the path to the data into an environmental variable and read it when your external method starts. This is better than 1), but not that much, since somewhere you have remember to set that environmental variable. 3) Put all your external method code into a folder somewhere outside of the Zope installation, put it onto the Python path, and make it a Python package. Change your external method so that it is just a stub that calls the real code. The code in the package can find out its own location (using the __file__ attribute). Put the data folders in a known location relative to the package (maybe in subfolders), and use os.path methods to construct the paths to the data files based on the __file__ location. I highly recommend 3). With this approach, the code automatically finds its data no matter where the installation or code is moved to. You do not have to remember to do anything to make this happen, it just works automatically. As a byproduct, the Extensions folder remains simple and uncluttered, which is a good thing, especially when you want to update Zope. The thing NOT to do is to change the current path, because you have no idea what other bits of code may rely on the value of that path. They should not, but you best not rely on that "should". Cheers, Tom P

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Re: [Zope] ZODB or MySQL for form data?
by Calvin Hendryx-Parker 09 Sep '03

09 Sep '03

kosh said: > Also while zope presents the db as hierarchical it really is not. If you want > an item to be in multiple places without copying it is trivial to do from > a > python product. You just store the object reference like your normally would > in a python program just make sure to remove the acquisition wrapper before > storage. This gives you one real copy of the object in the db but in many > locations. This is something I have been very interested in know how to do, but haven't seen any good examples of it yet. How do you specify in which location the references show up? Thanks, Calvin -- S i x F e e t U p | "Taking your site to new heights" Silicon Valley: +1 (650) 401-8579 | Midwest: +1 (317) 861-5948 Toll-Free: 1-866-SIX-FEET mailto:calvin@sixfeetup.com http://www.sixfeetup.com | Hosting from $9.95/month

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CorruptedDataError! Please help asap
by Gitte Wange 09 Sep '03

09 Sep '03

Hello, This morning I woke to an email from a customer, saying he got this error everytime he went to a specifik folder: * Module Products.PageTemplates.ZRPythonExpr, line 48, in __call__ * __traceback_info__: here.listFolderContents() * Module Python expression "here.listFolderContents()", line 2, in f * Module Products.CMFCore.PortalFolder, line 230, in listFolderContents * Module Products.CMFCore.PortalFolder, line 221, in contentValues * Module Products.CMFCore.PortalFolder, line 194, in _filteredItems * Module Products.CMFCore.PortalFolder, line 591, in __call__ * Module Products.CMFCore.PortalFolder, line 572, in <lambda> * Module ZODB.Connection, line 509, in setstate * Module ZODB.FileStorage, line 650, in load * Module ZODB.FileStorage, line 630, in _load CorruptedDataError: ????????????????????? I have looked at the archives and saw something that Dieter Maurer wrote about: "Looks like a case for "fsrecover" (make a backup copy of your "Data.fs"!)." fsrecover ??? Can someone please help me here ?? Please CC me on any responds as I'm having problems receiving the Zope mailing lists at the moment Greetings, Gitte Wange

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Problem with external methods in ZOPE
by Miguel Garcia 09 Sep '03

09 Sep '03

Hi, I'm New with Zope, and I need to make a external method to open a file, search some things and return those values, I have the script already make in Python. When I run in Python it runs fine, but when I put it on the extension folder of Zope and added the external method in the Zope folder where I need to start the search, this returrn an error that say " Zope Error Zope has encountered an error while publishing this resource. Error Type: IOError Error Value: [Errno 2] No such file or directory: 'chr1/CDS.htm'" The external method is in a folder called database, inside that folder are 14 folders called chr1, chr2, chr3 etc..., and inside any folder is a DTML document called CDS.htm. Please help me with this because I don't know what's the problem. Here is the code of the script make in Python # -*- coding: cp1252 -*- """ Script realizado por Miguel Angel García Belandria """ """Debe ser guardado en el directorio /home/Zope/Extensions para posteriormente ser llamado como método externo de Zope""" import sys,re files=['chr1/CDS.htm','chr2/CDS.htm','chr3/CDS.htm'] def rifin(): gi=giclean="" rifin=h=0 for h in files: i=j=0 file=open(h,"ra") print "Searching in file %s ..." % h texto=file.read() file.close """Buscar RIFIN""" while i < len(texto): if texto[i]=="R" or texto[i]=="r": if texto[i+1]=="I" or texto[i+1]=="i": if texto[i+2]=="F" or texto[i+2]=="f": if texto[i+3]=="I" or texto[i+3]=="i": if texto[i+4]=="N" or texto[i+4]=="n": rifin=rifin+1 j=i-1 while not(texto[j])==";": gi=texto[j]+gi j=j-1 i=i+1 """Buscar los GI solamente""" cont=i=0 while i < len(gi): if gi[i]=="g": if gi[i+1]=="i": j=i if cont==0: giclean=giclean elif cont<3: giclean=giclean+" - " else: giclean=giclean+"\n" cont=0 cont=cont+1 while j <i+12: giclean=giclean+gi[j] j=j+1 i=i+1 print "Se encontraron %d resultados compatibles con RIFIN" % rifin print giclean for h in files: print "|File: %s|" % h, --------------------------------- Do You Yahoo!? Todo lo que quieres saber de Estados Unidos, América Latina y el resto del Mundo. Visíta Yahoo! Noticias.

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PortableHole without absolute dependency or LinkedFolder?
by Jaroslav Lukesh 09 Sep '03

09 Sep '03

Hi zopistas, I often use Portable Hole, but it depdends on the absolute URL from Zope root, not virtual root. Not problems if you use it in "live" but if you archive them and backed up after while to another folder name than original, it is not possible to import that zexp. Comparison with LinkedFolder (use courier font please): --------------------------------------------------------- PortableHole LinkedFolder --------------------------------------------------------- Linked URL URLa URLb --------------------------------------------------------- rendering URL with data from URL with data from URLb and parent&sub URLa and their folders was get parent&sub-folders from URL --------------------------------------------------------- URL: /www/site/folder/ URLa: /www/site/linkedfolder/ URLb: ../linkedfolder VHM mapping: site.com/www/site/ --------------------------------------------------------- Does somebody have patch for PortableHole to remove needs absolute paths from zope root or patch for Linked Folder to have same rendering as portable Hole? Or does somebody know other similar product that brings you folder content to another place. Many thanks, JL.

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running Zope with python -O option
by zhimin＠iss.nus.edu.sg 09 Sep '03

09 Sep '03

Hi, Is it ok to run Zope with python -O option? e.g. python -O z2.py This will run Zope with optimized bytecode .pyo files instead of .pyc files. How's the performance gain? Any potential problem? Thanks and regards,

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Re: [Zope] Repeated (growing) URL elements....
by Jaroslav Lukesh 09 Sep '03

09 Sep '03

> Odesílatel: Celula Research <fb(a)celula.com> Try this: > <dtml-if mensaje_error> > <dtml-var mensaje_error> > </dtml-if> ................changed here: > <form action="/Folder/product/validate_Form_1" method="post"> > <input type="text" name="account"> > <input type="submit" name="submit" value="Enter >"> > </form> > http://localhost:8080/Folder/Form_1 <--- Initial call, works OK > http://localhost:8080/Folder/product/Form_1 <---First validation > http://localhost:8080/Folder/product/product/Form_1 <----2nd pass. Regards JL.

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Re: [Zope] very slow zcatalog - PROBLEM SOLVED
by Shawn Day 08 Sep '03

08 Sep '03

Thanks to everyone who offered assistance with this problem. The problem has been resolved. It turns out it was nothing to do with the catalog but a call being made in the ZPT that was causing the problem.

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NewBie XML/ZPT
by Vinoth 08 Sep '03

08 Sep '03

Hi Any examples or some tips available on How to work XML Document and ZPT? Thanks in advance -vinoth --------------------------------- Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software

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xml.dom.minidom
by Patrick W. Fraley 08 Sep '03

08 Sep '03

Hi List, I am trying to use the xml.dom.minidom praseString routine. It works fine under normal python (2.2), but when I try and runn it under the binary distribution of Zope (Python 2.1) I get teh following error message: Traceback (most recent call last): File "mM4Connection.py", line 118, in ? dom_parser = parseString(xmldata) File "/opt/Zope-2.6.1/lib/python2.1/xml/dom/minidom.py", line 915, in parseString return _doparse(pulldom.parseString, args, kwargs) File "/opt/Zope-2.6.1/lib/python2.1/xml/dom/minidom.py", line 901, in _doparse events = apply(func, args, kwargs) File "/opt/Zope-2.6.1/lib/python2.1/xml/dom/pulldom.py", line 301, in parseString parser = xml.sax.make_parser() File "/opt/Zope-2.6.1/lib/python2.1/xml/sax/__init__.py", line 88, in make_parser raise SAXReaderNotAvailable("No parsers found", None) xml.sax._exceptions.SAXReaderNotAvailable: No parsers found Now I though all these modules (including a parser) are part of a standard python distribution. How can I get this to work? Or is there a better way to use XML under Zope? Do I have to install some extra Packages? Tia Patrick -- *************************************** COMsulting Gerhard Faehling GmbH Patrick W. Fraley Oeverdieker Weg 6 23669 Timmendorfer Strand Tel: 04503 / 88 12 45 Fax: 04503 / 88 10 18 E-Mail: pf(a)comsulting.de Internet: www.comsulting.de ***************************************

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