January 2003 - Zope - Zope lists

Call to external perl method isn't passing 'self'
by chris 27 Jan '03

27 Jan '03

I have a perl script running as an external method. It has two arguments, one being 'self' since I am changing some zope properties in the perl script itself. When called via html, such as by using the 'try it' link on the perl script object, it works just fine. When I try to call it using dtml, 'self' isn't being passed at all, and I get a perl error saying I can't call a method on an undefined object. Here is the dtml tag. I have tried a number of variances also trying to find out why it won't work: <dtml-call expr="clientinfo('chris')> I also tried this with a regular zope perl script (restricted). I created an object using the following code and the single argument 'self'. my $context = shift; $a = $context->manage_addProperty('newid','HIYA','string'); return $a; Then I called it using this line of dtml. <dtml-call expr="perl()"> And got this error: Error Type: PerlError Error Value: Can't call method "manage_addProperty" on an undefined value at perl line 2. It of course works correctly using the Try it link, which is it returns nothing at all.. I'm thinking this might be a bug, but then I'm pretty new to zope so I hate to start yelling bug on my first post:) Chris

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sorry for lame question...
by Corey Saltiel 27 Jan '03

27 Jan '03

I'm completely new to Zope and am starting out with something I imagine is amazingly simple - but after many attempts and perusals of docs and lists, I'm still unable to figure this one out... Using ZPT - how do I get the value returned from a ZSql method? This method only ever returns *one* value; I'd rather not do a tal:repeat if I'm able to. The best I can do is: <span tal:replace="here/my_ZSql_method"> Which provides: "<Shared.DC.ZRDB.Results.Results instance at 0x8c6df8c>" I don't want the instance - I want the value, of course. ( My lack of Python knowhow may make the obvious less so ) Also - could someone point me to the document(s) that explain or show an example of this? I was unable to find it explained anywhere. There's a ton of stuff on DTML - but I'm only interested in using ZPT wherever possible. Shouldn't the Zope Book ( I'm reading v. 2.6 ) try to use ZPT in all it's standard examples rather than DTML? Why can't ZPT be used in other places, like ZSql methods? There is some serious confusion on where to use ZPT and where to use DTML. Why should a new user be required to learn *both* -- especialy when it's arguable that ZPT is more "correct" ( in so far as much as better separation of logic from presentation, html/xml friendly, etc., etc. ) I get the distinct impression from the zope-dev list that ZPT is, generaly, the new desired replacement for DTML for most uses. Thanks!

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Installing Zope 2.6.0
by Andrew Campagnola 26 Jan '03

26 Jan '03

Hi, I'm trying to install Zope 2.6.0 on a RH Linux 8.0 system, and I get the message "cannot execute binary file" when running root# Zope-2.6.0-linux2-x86 I unpacked using #gunzip Zope-2.6.0-linux2-x86.gz Any ideas? Andrew Campagnola acamp(a)ram-it.com

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returning values from python scripts
by Jeff Sacksteder 26 Jan '03

26 Jan '03

I'm not sure how to get at the return values of python scripts from dtml. Assume I have the following python script called 'test': foo = "john doe" bar = 42 return foo,bar How can I get at the returned value? <dtml-var test> returns both elements. I was hoping to be able to do something like <dtml-var test.foo> or <dtml-var test[0]>

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upgrade python zope 2.6.0 ?
by Patrick Price 26 Jan '03

26 Jan '03

I have Zope 2.6.0 running under Python 2.1.3 If I want to upgrade to Python 2.2.2 will that break my Zope installation? Can I recompile Zope 2.6.0 with Python 2.2.2 or am I forced to use Python 2.1? Thanks in advance, Patrick Price

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FW: [ZC] 780/ 1 Request "dtml-var always renders to empty except if missing tag is added"
by Thijs Cobben 26 Jan '03

26 Jan '03

All, Mr. Dieter Mauer tipped me to forward this bug to zope(a)zope.org . I have after posting been 'diffing' various versions of DocumentTemplate/DT_Var.py but I honestly do not have a clue. Could the root of the problem lie in the warnings I get about a 'Python C API' ? Please help! Thijs > -----Oorspronkelijk bericht----- > Van: Collector: Zope Bugs, Features, and Patches ... > [mailto:zope-coders-admin@zope.org] > Verzonden: donderdag 23 januari 2003 13:04 > Aan: Thijs Cobben; klm; Brian; chrism; Caseman; _Pending_ recipient > Onderwerp: [ZC] 780/ 1 Request "dtml-var always renders to empty except > if missing tag is added" > > > Issue #780 Update (Request) "dtml-var always renders to empty > except if missing tag is added" > Status Pending, Zope/bug medium > To followup, visit: > http://collector.zope.org/Zope/780 > > ============================================================== > = Request - Entry #1 by Anonymous User on Jan 23, 2003 7:03 am > > As posted in comp.lang.python (didn't know of this site, sorry) > > Dear All, > > Have looked on the web for answers, have found none. > > Problem description: In a dtml document template file, <dtml-var > varname> is > substituted by an empty string. If, however, I replace by > <dtml-var varname > missing=''> the correct value for varname (so not the '' empty string) is > substituted. > > Odd. Anyone encounter this before? > versions: python2.2.2 [GCC 2.96.200000731] > RedHat Linux 7.3 > Zope-2.6.0-linux2-x86 from source > > warnings:[root@ns www.phaedro.com]# python > Python 2.2.2 (#1, Dec 28 2002, 13:14:20) > [GCC 2.96 20000731 (Red Hat Linux 7.3 2.96-113)] on linux2 > Type "help", "copyright", "credits" or "license" for more information. > >>> import DocumentTemplate > /usr/local/Zope-2.6.0-linux2-x86/lib/python/DocumentTemplate/__ini > t__.py:21: > RuntimeWarning: Python C API version mismatch for module ExtensionClass: > This Python has API version 1011, module ExtensionClass has version 1010. > import ExtensionClass # work-around for import bug. > /usr/local/Zope-2.6.0-linux2-x86/lib/python/ZPublisher/HTTPResponse.py:19: > RuntimeWarning: Python C API version mismatch for module zlib: This Python > has API version 1011, module zlib has version 1010. > import zlib, struct > /usr/local/Zope-2.6.0-linux2-x86/lib/python/xmlrpclib.py:325: > RuntimeWarning: Python C API version mismatch for module sgmlop: > This Python > has API version 1011, module sgmlop has version 1007. > import sgmlop > /usr/local/Zope-2.6.0-linux2-x86/lib/python/DocumentTemplate/DT_Va > r.py:163: > RuntimeWarning: Python C API version mismatch for module Acquisition: This > Python has API version 1011, module Acquisition has version 1010. > from Acquisition import aq_base > >>> > > Any info is welcome, the missing='' addition feels like an ugly workaround > fix. > > -- > Thijs Cobben > www.thijscobben.nl > > > > > > ============================================================== >

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isinstance not working
by Andrew Altepeter 26 Jan '03

26 Jan '03

Hi All, I am developing a custom user folder (based off of AccessControl.UserFolder code, and SimpleUserFolder), which inherits from BasicUser. There are two types of users in this folder, one is the AccessControl.User, and the other is a subclass of it. Inside getUserNames, I am trying to use isinstance, but it isn't working. It returns: >> TypeError: isinstance() arg 2 must be a class or type Here's the code that I'm using: class PortalUser(User): __doc__ = """This is the class for PortalUsers""" class PortalUserFolder(BasicUserFolder): ... ... """Return a sorted list of usernames""" def getUserNames(self,luser=1,puser=1): names = self.local_data.keys() names.sort() if (luser==1 and puser!=1): for name in names[:]: if (isinstance(name,PortalUser)): names.remove(name) elif (luser!=1 and puser==1): for name in names[:]: if not (isinstance(name,PortalUser): names.remove(name) return names Any ideas as to what's going on here, or why this is not working would be great! Oh, I've also tries using PortalUserFolder, and User as arg2 to isinstance. Thanks! Andy

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Cygwin + python + zope 2.6.0 on windows XP
by Heimo Laukkanen 25 Jan '03

25 Jan '03

Hi all, I kept having strange problems getting Zope to run with python2.1.1 with cygwin on Windows XP. I got everything to work now with standard 2.1.3 source package - but had strange problems on the course. I followed instructions on mailinglist and on url: http://www.zope.org/Members/dgeorgieff/howto_zope_cvs_on_cygwin I kept hitting my head for a while in the rebase section. I felt that anything that I tried stopped to an error while trying to do rebasesing. Allways atleast one .dll produced error. And mailinglists provided me no help. After I reinstalled cygwin luck seemed to turn. I succesfully compiled from cygiwn source python 2.2... and built Zope extensions nicely with it, and Zope seemed to run ok too ( even though emails on mailinglist say that it shouldn't ,-) But when I compiled python2.1.1's cygwin source-package and tried to run Zope ( 2.6.0 ) I got error stating that interpreter is not initialized (version mismatch). Full error below. /home/heimol/Zope-2.6.0-src/z2.py:378: UserWarning: You are running Python versi on 2.1.1. This Python version has known bugs that may cause Zope to run imprope rly. Consider upgrading to a Python in the 2.1 series with at least version numb er 2.1.3. (Note that Zope does not yet run under any Python 2.2 version). warnings.warn(err) Fatal Python error: Interpreter not initialized (version mismatch?) Aborted (core dumped) This continued even though I compiled Zope's extensions again ( po_cgi.py ). Then I downloaded the Python 2.1.3 source package, even though in howto's it is recommended to use cygwin's source package. And compiled the python without any patches. Evrything ok. Trying to run Zope produced same error again. Decided to do desperate action and rm -rf the whole Zope directory. Extracted it again from tarball, compiled extensions and it worked. I'm hoping that if anyone else has in future similar problems they might find this email and get some comfort that desperate actiona can help too ,-) -- Heimo Laukkanen Oy Fountain Park Ltd Hämeentie 153 B, 00560 Helsinki, Finland tel. +358 9 777 68 161, gsm +358 40 759 1110, fax +358 9 777 68 100 http://www.fountainpark.com

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Re: [Zope] Limiting data in subfolder
by Tino Wildenhain 25 Jan '03

25 Jan '03

Hi Jonathan, beside the fact I was not the one who brought up this question ;) I believe the mount approach has some more advantages over quotafolder: it covers also historic transactions in the size, thus a bloating self-made counter will not disturb anybody elses zope, and it isolates the home dirs of different customers somewhat, so they can even be packed without influencing the others. This is almost ideal in hosting situations. Regards Tino --On Samstag, 25. Januar 2003 12:38 +0000 Jonathan Miles <jonathan.miles(a)btconnect.com> wrote: > You should be able to find a quotafolder product from zope.org > product list. > > I believe that is used at Freezope.org to restrict subfolder size. > > Regards > > ----- Original Message ----- > From: "Tino Wildenhain" <tino(a)wildenhain.de> > To: <mico(a)cbn.net.id>; <zope(a)zope.org> > Sent: Saturday, January 25, 2003 8:45 AM > Subject: Re: [Zope] Limiting data in subfolder > > >> Hi Mico, >> >> --On Samstag, 25. Januar 2003 02:57 +0000 mico(a)cbn.net.id wrote: >> >> > We have several clients using Zope, and we set the client to have have >> > virtual host in their own folders like http://our.server:8080/clients/. >> > We followed the instructions written in "Python 2.1.x, Zope 2.5.x, >> > Apache 1.3.x/2.0.x, Virtual Hosts and caching installation and startup >> > on RedHat Linux 7.3 and beyond" HOWTO. It works. But I wonder how to >> > limit the size of the client subfolder in Zope? So we could limit > client >> > A to have only 100 MB space in Zope subfolder. >> > Thanks. >> >> You can use Shanes dbtab >> (http://hathaway.freezope.org/Software/DBTab ) >> to mount an individual storage for each user which can then >> limited to 100MB. >> >> Regards >> Tino >> >> _______________________________________________ >> Zope maillist - Zope(a)zope.org >> http://lists.zope.org/mailman/listinfo/zope >> ** No cross posts or HTML encoding! ** >> (Related lists - >> http://lists.zope.org/mailman/listinfo/zope-announce >> http://lists.zope.org/mailman/listinfo/zope-dev ) >

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ExtFile date format
by Mike Bunyan 25 Jan '03

25 Jan '03

I would like to change the date format used in ExtFile to include the year like %Y%m%d%H%M%S. At present the script will on accept %m%d%H%M%S Using the extra characters created by %Y gets the zope error: Error Type: ValueError Error Value: int() literal too large: 20030123222057 I am setting the FILE_FORMAT = "%n-%t%e" Changing Line 590 to: counter = int(DateTime().strftime('%Y%m%d%H%M%S')) What's else needs to be changed please? TIA Mike Bunyan

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