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Start a new thread from a request
by Wade Leftwich 18 Apr '03

18 Apr '03

I've got a Zope application that accepts some data from a user and uses it in an XML-RPC call to another server. The XML-RPC can take some itme, so I would like to put it into another thread and immediately return a page to the user. I've heard something about how I need to provide my new thread with a connection to the ZODB, but have not found a recipe. Any help appreciated. Wade Leftwich Ithaca, NY

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Zope Lockup (ZPublisher stops responding?)
by Jean-Francois.Doyon＠CCRS.NRCan.gc.ca 18 Apr '03

18 Apr '03

Hello, I found refences to similar problems in the archives, and was wondering if any progress was made as to possible causes and solutions. The system: Zope 2.6.1 CMF 1.3 Apache 1.3 + mod_rewrite + mod_proxy The symptoms: Zope stops responding to HTTP requests Zope memory usage increases suddenly quite a bit The number of apache processes increases quite a bit also Can't kill Zope normally, need to do a -9 ... Once I restart it , all is back to normal. This happens once a week, sometimes more. As I saw in the archives, this would be due to a locking problem inside zope? One thing to note is that our site is 99% read-only, very few writes happen during a day, since we use the CMF features only for internal authoring of your site. I'd think this "locking" issue would be a problem when there's a read/write conflict, so I'm surprised to see it happen so often for us. Is my thinking flawed? On the other hand we might experience it a lot because of the high volume of traffic? Also, I use -t 5 ... I recall there was another value, in the code, one should change (ZODB connection pooling if I recall?) ... I haven't done that, so I'm going to go read up on that, but I'm wondering if these 2 values not playing nice with each other could be a cause of such behavior? I'll try wunnning the default 4 threads for a while too, see if that helps. Dieter, if you're reading this, you had mentionned you guys were also experiencing this ... Had a chance to look at it yet? Thanks, Jean-François Doyon Internet Service Development and Systems Support / Soutien de systèmes et developement de services Internet GeoAccess Division / Division GéoAccès Canada Center for Remote Sensing / Centre canadien de télédétection Natural Resources Canada / Ressources naturelles Canada Phone / Téléphone: (613) 992-4902 Fax / Télécopieur: (613) 947-2410 http://atlas.gc.ca

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manage_addFile
by Annie Private 18 Apr '03

18 Apr '03

Hi. I am trying to move a pdf file from a remote server onto a local Zope server. I have an external method that gets it from the remote server into /tmp and that part works fine. But I can't get it programmatically uploaded into Zope from there. It seems like every method I've tried to get a file object has given me a pointer inside the file instead. That, or I end up with a new object whose contents are only a string, such as the filename. Here's one version I tried. try: fyl=urllib.open(fromurl) folder.manage_addFile(filename, fyl, mime) except: return errormsg Part of the problem is that the files will be large binary pdf files, so I really want to avoid reading them out line by line. I'm on Red Hat Linux 7.2, Zope 2.5.0, python 2.1.2 I'd really appreciate your help on this. Thanks, Annie _________________________________________________________________ Add photos to your e-mail with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail

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Re: Error -> A TaintedString cannot be pickled
by Josef Meile 18 Apr '03

18 Apr '03

> Tainted strings are new in Zope 2.6 to make it more difficult > that cross scripting bugs slip in. > > If you are lucky, there is an explicite conversion between > a tainted string and a string. If not, you must make one in > an External Method. Thanks for your reply. I just found this thread about TaintedStrings: http://mail.zope.org/pipermail/zope-coders/2002-August/001598.html and my case was exposed there: > Passing a TaintedString value from a DTML template to other objects such > as Python code, External Methods, Python Scripts, etc, may cause them to > break because they did not anticipate a TaintedString object. Actually my case it's really uncommon, but as you see it can happen: one of the users wanted to say that the dimmensions of something should be minor than 1 m, so he wrote "< 1 m". Then come that exception. One possible solution could be to convert all the "<" symbols to "<". But I was wondering if there is another way of dealing with this TaintedStrings (appart of disabling the check, off course). Regards, Josef

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Python Script Error
by volker.wend＠efgbsh.de 18 Apr '03

18 Apr '03

He Folks, any Idea what goes wrong ? Site Error An error was encountered while publishing this resource. Error Type: ImportError Error Value: import of "html_quote" from "Products.PythonScripts.standard" is unauthorized. The container has no security assertions. Access to 'html_quote' of (module 'Products.PythonScripts.standard' from 'C:\Program Files\Zope\lib\python\Products\PythonScripts\standard.py') denied. Volker Wend

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A newbie question: mailhost
by Mico Siahaan 18 Apr '03

18 Apr '03

I tried to collect data from a form then mailed the data to a specific email address. When I tried to sent, I got this messages: -- Zope Error Zope has encountered an error while publishing this resource. Error Type: NameError Error Value: global name 'localzone' is not defined -- I had added a mailhost, specified the mail server, etc. Can anybody tell me what is the cause of this error, and how to solve it? Thanks. -- mico(a)intermatik.co.id -- www.intermatik.co.id ICQ #12521756

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RE: [Zope] Newbie - passing a list to an External Method
by Passin, Tom 17 Apr '03

17 Apr '03

[ Dylan Reinhardt] > Look extra carefully at any and all assignments you make in > the external > method. In particular, it's possible you may have committed a common > error with lists, ex: > > a = [1,2.3] > b = a > b = None > # now the value of a is None! > That is not right. a retains its value as expected. To prove it, here's a transcript from an IDLE session, with Py2.1.3 - >>> a = [1,2,3] >>> b=a >>> print b [1, 2, 3] >>> b=None >>> print a [1, 2, 3] >>> Even when you start with a=b=[1,2,3] a still remains when you set b to None. You must be mixing this up with some other situation in which both and b have a reference to the same list, and a changed value in one then shows up in the other. For example - >>> a=b=[1,2,3] >>> a.append(4) >>> print b [1, 2, 3, 4] This is different from re-assigning the variable to reference something else like None. Cheers, Tom P

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Security Folder
by Salvatore DI DIO 17 Apr '03

17 Apr '03

Hello, I'm hosted on freezope.nipltd.net and i've insatlled zwiki. I can't find the security folder in order to allow user edit or create new pages Thanks for your help Regards Salvatore

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RE: [Zope] Re: silva, xmlwidgets, parsedxml
by Passin, Tom 17 Apr '03

17 Apr '03

[garry saddington] > > I've finally sorted this out. I called setup.py with the zope > python and it > installed the pyXML into /zope/lib/python2.1/site-packages > which mirrors what > it does when installed into the normal filesystem. This still > did not work! > Renaming the _xmlplus directory to xml as indicated by some > of the python > scripts in parsedXML did not work, but when the whole > directory (as 'xml') > was copied to /zope/lib/python (in the same directory as > Products) it worked. > The installation instructions for all the products that rely > on pyXML only > say that it needs to be installed, they do not specify how! > Do we need a how > to for this? You approach may end up causing some trouble too. The thing is that the PyXML package has some magic initialization code that causes modules in the _xmlplus directory to be found when scripts import from "xml", even though the package is physically named "_xmlplus". This allows the PyXML modules to effectively replace modules of the same name that come with the regular Python distribution. If you call the directory "xml", I am not to sure what will happen with regards to this magic initialization (I do not fully understand how it works), and so I am not sure if one can be know what modules will be imported from where. This may be more of a problem with Python 2.2 than with 2.1.3, I am not sure. It may be that the magic initialization script does not work right when the code is located in zope/lib/python (which I imagine was needed to put it on the Python path, which is set up a little differently from a stock Python distribution). So I would say that some more research is needed, and maybe some help from the PyXML group, before finalizing new instructions - which are obviously needed. Did you try to copy it into zope/lib/python as _xmlplus? If this works, it is exactly what should be done, and would be the easiest of all the various things that have been suggested. Cheers, Tom P

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Re: [Zope] decision on binary distributions (2.7+)
by Brian Lloyd 17 Apr '03

17 Apr '03

Just to get to some closure on this thread, it sounds like we have basic agreement, so the decision is that as of the Zope 2.7 release: - ZC will package and provide a source tarball - ZC will package and provide a win32 binary version (logs show that *lots* of people begin dabbling in Zope with this version) - ZC won't provide any other binary packages, but *will* link to versions produced by other packagers on the download page for a particular Zope version. Brian Lloyd brian(a)zope.com V.P. Engineering 540.361.1716 Zope Corporation http://www.zope.com

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