December 2000 - Zope

wierd zope behaviour - follow up
by Bak＠kedai 22 Dec '00

22 Dec '00

me again.. the "only one zope process running" is here again. this time, i did what dieter suggested, and looked at the debug info. attached below is some info. my setup, again: zope 2.2.4 , ZEO 0.4.1, RH 6.2, apache-1.3.12, mod_pcgi2 i think there should be a manage debug howto. i can only view, but can't really deduce what is what. mebbe i'm just too dense. if anybody could point to docs, explain a bit, etc, i would be indebted. and, yes, i've read/reread HelpSys thanks, and merry xmas and a happy new year. -----8<---------------------- top output 11686 nobody 0 0 58588 57M 1724 S 0 6.9 11.3 30:01 python 11687 nobody 0 0 58588 57M 1724 S 0 0.0 11.3 0:05 python 11688 nobody 0 0 58588 57M 1724 S 0 0.0 11.3 4:16 python 11689 nobody 0 0 58588 57M 1724 S 0 0.0 11.3 3:18 python 11690 nobody 0 0 58588 57M 1724 S 0 0.0 11.3 3:21 python 11691 nobody 0 0 58588 57M 1724 S 0 0.0 11.3 3:16 python 11692 nobody 14 0 58588 57M 1724 R 0 92.9 11.3 715:06 python 11693 nobody 0 0 58588 57M 1724 S 0 0.0 11.3 3:34 python these are from manage debug Zope version: Zope 2.2.4 (source release, python 1.5.2, linux2) Python version: 1.5.2 (#1, Feb 1 2000, 16:32:16) [GCC egcs-2.91.66 19990314/Linux (egcs- System Platform: linux-i386 Process ID: 11686 (5126) Running for: 23 hours 46 min 54 sec Top Refcounts: DocumentTemplate.DT_Util.Eval: 9362 Products.ZCatalog.Catalog.Catalog: 3463 ..other refcounts snipped ..here are the connection open time - there are 7 connections open, and on 5 of them it was open about sometimes back, as shown below. the only new open connection is the debug (mine). none of the 5 requests are RDB related. all are normal ZODB calls. Thu Dec 21 10:07:25 2000 (84065.60s) Thu Dec 21 10:07:23 2000 (84066.75s) -- http://www.kedai.com.my/kk http://www.kedai.com.my/eZine We don't need no, no, no, no, no parental guidance here!

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Adding a ZClass Instance to a Specific Folder
by Leichtman, David J 22 Dec '00

22 Dec '00

The default constructor when a ZClass is created calls: <dtml-with "ZClass_name.createObjectInFolder(REQUEST['id'],REQUEST)"> </dtml-with> And when you programmatically add a ZClass instance, it's like this: <dtml-with "manage_addProducts('Your_product')"> <dtml-call "ZClass_name.ZClass_name_add(_.None,_)"> </dtml-with> This creates the instance in the directory of the method from which the call was made. The Question: How do you go about adding an instance to a specific folder? I can't, for the life of me, figure it out. I've tried many different things, and I've looked for flags in createObjectInFolder, but to no avail.

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Zope Book: UniqueValuesFor
by Milos Prudek 22 Dec '00

22 Dec '00

Regarding the upcoming Zope Book: There are some examples for UniqueValuesFor method and "_usage" syntax (it looks that only values "range:min", "range:max" and "range:min:max" are possible), but these are not mentioned in the DTML reference or API reference. Maybe Zope Book needs a ZCatalog reference, if there are methods like UniqueValuesFor... I would recommend that since the current Zope Book is a giant leap forward, these and any other language tricks that are scattered in the Zope Book chapters should be briefly mentioned in the ZopeBook DTML and API references. IMHO there are many people like me who: - are trying to start using Zope BECAUSE OF the final availability of Zope Book - for various reasons are not very comfortable with hunting information around zope.org and in Zope sources (no permanent internet connection is a strong reason) - consequently expect to find all basic information in coherent form in Zope Book Obviously, Zope Book can't contain everything. I like the sentence "this is an advanced topic and it's outside the scope of this book". Authors have put limits to what they want to achieve. I wish that the ZB is coherent in the "explanation - example - reference" trio. -- Milos Prudek

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Job listings?
by Jiva DeVoe 22 Dec '00

22 Dec '00

Is it inappropriate to post a job listing looking for Zope knowledgable coders on this list? I don't see anything in the list charter about it, but I don't want to be rude. Let me know! Thanks! :) -- Jiva DeVoe VP Of Software Development Opnix, Inc. - Simply blast-your-hair-back-on-your-skull bandwidth. GPG Fingerprint: 0A17 DF84 516A 1DC4 B837 FE6D 3128 41CD 97CB 4AA7

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Name Errors: DTML Document -> External Python Document -> DTML Do cument -> ZSQL cument -> ZSQL
by Burwell, Becky <burwell＠parc.xerox.com> 21 Dec '00

21 Dec '00

I have an SQL database that I want to populate using an external Python method (because I have file I/O code). So I have something like this: DTML Document named import_file which has: <dtml-call "parsefile()"> ---- parsefile is my external Python method. def parsefile (self): # blah, blah self.record_info (arg1=value1,arg2=value2) ---- record_info is a DTML document <dtml-unless "LookupPrinter(printer=printer)"> { random code here } ---- And LookupPrinter is a ZSQL Method So I have: DTML Document -> External Python Document -> DTML Document -> ZSQL Document Is this a sane thing to have my External Python Document calling back to DTML Documents? I keep getting name error on the LookupPrinter. I tried putting: <dtml-unless "LookupPrinter(_.None, _,printer=printer)"> and I still get the name error. In essence I am trying to have code that will parse a file and then record the results in my database. Thanks. Becky.

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WorldPilot
by joshb 21 Dec '00

21 Dec '00

Any idea where one can find WorldPilot these days? Looking at www.worldpilot.org takes you to N&H's site where they'll sell a box running it but I was curious if there are any updtates to just the software? Josh

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Re: [Zope] Getting to Doc Root
by Dieter Maurer 21 Dec '00

21 Dec '00

Ben Ocean writes: > So I put together my site with Zope. I can't very well advertise to people > to go to > http://MySite.com:8080/ > So how do I get Zope to configure to > http://MySite.com/ You have two options: 1. you start Zope as root. This allows it to bind to privileged ports (ports with numbers < 1024) There is a parameter to "start" ("z2.py"), that lets you specify the HTTP port (I think, -w). Thus, try: start -w 80 After binding, Zope will switch personality to the user specified during installation. Thus, the web requests are not executed as root. 2. You run Zope behind another Web Server, such as e.g. Apache. There are HowTo's at zope.org, that detail what you must do. Dieter

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Re: [Zope] why I don't use popen2 any more
by Dieter Maurer 21 Dec '00

21 Dec '00

Dennis Nichols writes: > ... Zombies ... > I *think* the really bad thing about these processes (called zombies?) is > that they may have certain resources, such as files, held open. They are not *THAT* bad. All file descriptors are already closed, when the process enters the Zombie state. The only resource, it still helds, is the process resource. There is a per user limit and a system wide limit on process resources. Thus, if there are too many Zombies, you will no longer be able to create new processes. > And they > are said to stay around until the process that created them dies itself. Unix is a social operating system: parents have responsibilities towards their offspring. Zombies are the children of bad, unsocial parents. They disappear, when either the parent dies itself (they are then reparented to a social parent) or the parent finally fulfills its obligations. What Unix requires from a parent is, that it is interested at least in the childs death. The parent shows this interest by calling the wait system call ("os.wait"). Usually, the parent blocks until a child dies. But "wait" can be called with a non-blocking parameter. Dieter

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WorldPilot Err on Logout.
by Jason C. Leach 21 Dec '00

21 Dec '00

hi, Has anyone ever seen an error like this while logging out of world pilot? Or how I might be able to correct it by hand? Thanks, j. AttributeError Sorry, a Zope error occurred. Traceback (innermost last): File /usr/local/www/Zope/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /usr/local/www/Zope/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/www/Zope/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: RoleManager) File /usr/local/www/Zope/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/local/www/Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: logoff) File /usr/local/www/Zope/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: logoff) File /usr/local/www/Zope/lib/python/Products/WorldPilot/WorldPilot.py, line 2199, in logoff (Object: RoleManager) File /usr/local/www/Zope/lib/python/Products/WorldPilot/WorldPilot.py, line 2153, in displayIfLoggedOn (Object: RoleManager) File /usr/local/www/Zope/lib/python/Products/WorldPilot/WorldPilot.py, line 369, in callResource File /usr/local/www/Zope/lib/python/Products/WorldPilot/Resource.py, line 137, in callResource File /usr/local/www/Zope/lib/python/DocumentTemplate/DT_String.py, line 528, in __call__ (Object: <string>) File /usr/local/www/Zope/lib/python/DocumentTemplate/DT_Util.py, line 337, in eval (Object: logoffLogin(REQUEST)) (Info: REQUEST) File <string>, line 0, in ? File /usr/local/www/Zope/lib/python/Products/WorldPilot/WorldPilot.py, line 2081, in logoffLogin (Object: RoleManager) File /usr/local/www/Zope/lib/python/Products/WorldPilot/WorldPilot.py, line 2118, in getLogon (Object: RoleManager) File /usr/local/www/Zope/lib/python/Products/WorldPilot/WorldPilot.py, line 2045, in logon (Object: RoleManager) AttributeError: 'string' object has no attribute 'has_key' ...................... ..... Jason C. Leach ... University College of the Cariboo. ..

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Re: [Zope] Anonymous user
by Priya Ramkumar 21 Dec '00

21 Dec '00

Hi Jim I tried typing the following url but it still logs in as "anonymous user". The cookies are also disabled in my browser. priya >Put the username and password in the url like this: > >http://managername:managerpassword@your.zope.site/manage > >-- Jim Washington > >> Priya Ramkumar wrote: >> >> Hi >> >> Could anyone please help me with this problem? >> >> I changed the default permission for the Anonymous user by adding the >> permission "View Management screens". So the next time I opened the >> site, and wanted to go into the management screen, it took me directly >> to the management screen. But as an Anonymous user, I do not have any >> security permissions and hence unable to change back the permissions. >> The problem is that I want to now login as "manager" and i am unable >> to do so as it does not wait for the username & password to go to the >> management screen. What is the way I could login as manager again & >> change the permission settings? >

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