- Zope - Zope lists

Values lost when restarting
by Jonas Nielsen 10 Jan '07

10 Jan '07

Hi this is probably a little vague but any help is appreciated. I'm developing on an old zope application, which I ported from zope 2.5.1 to zope 2.9. The application seems like it's based on the addressbook application in the "Zope Bible" The application is a tool for localization, where translators can log in and edit "translation resources" in "resource folders" I made a function to export all these resources to a csv-file and one to import the values in the zodb again. the text are set using a function on the resource calling def setText(self,language,text, REQUEST=None): # ... some stuff self.texts[language] = text The function works fine and updates the values correctly. But after I restart zope all the changes are lost. This not so when calling the function from the Resource objects web form. The "Zope Bible" says something about calling self.__changed__(1) after updating the value but this doesn't seem to work even though the objects inherits from "Persistent" When importing I fetch the object by using the RestrictedTraverse function, that's really the only difference I can see. Please write if you have ANY idea of what could be the problem.

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Selenium zodb?
by Peter Bengtsson 10 Jan '07

10 Jan '07

How can I run Zope in a non-persistent way so that all transactions are aborted and so that I can run a big fat Selenium script in Firefox without having to manually undo everything the Selenium script has done? Kind of like ZopeTestCase works when you run it. -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com

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Isn't DTML more like what other frameworks do?
by Mark, Jonathan (Integic) 10 Jan '07

10 Jan '07

"""Why (the hell) are you (still) using DTML (as newbie). You are strongly encouraged to use ZPT.""" My sense is that ZPT solves a problem which for most of us does not exist. If you wish to have designers work directly on markup in an HTML WYSIWYG editor then yes, ZPT is great. But most of us create our own HTML anyway. And for us it doesn't matter if DTML works in a WYSIWYG HTML editor, because we don't use the latter. What does matter is that DTML is very similar to RHTML (as in Ruby On Rails), ASP, etc. ZPT requires a new way of thinking. I would much rather convert RHTML to or from DTML than to or from ZPT. So I don't really get the benefit of using ZPT. The fact that no one outside of Zope seems to have created a ZPT-like solution suggests to me that ZPT, as I said, solves a problem which doesn't exist.

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Reminder: Early Bird Registration for PyCon Ending Soon
by Jeff Rush 10 Jan '07

10 Jan '07

Greetings. As the co-chair for the upcoming Python conference, being held in Dallas (Addison) Texas, I want to remind folk to register before early bird registration prices end. The event is the fifth international Python Conference, being held Feb 23-25, 2007 at the Marriott-Quorum in Addison Texas, with early-bird registration ending **Jan 15**. The conference draws approximately 400-500 attendees from diverse backgrounds such as scientists from national and medical labs, college/K-12 educators, web engineers and the myriad of IT developers and programming hobbyists. Those new to the Python language are welcome, and we're offering a half-day "Python 101" tutorial on the day before the conference, Thursday Feb 22 to help you get up to speed and better enjoy the rest of the conference. We have a great selection of talks this year, some of which that are relevant to Zope are: - Web Frameworks Panel - Introduction to Zope 3 - The Component Architecture - Panel: State of Zope - WSGI: An Introduction - Using Python Eggs - Distributing your project with Python Eggs - Half-Day Tutorial: zc.buildout and the Zope Component Architecture - Half-Day Tutorial: How to Document a Python Open Source Project Being run by the Python community as a non-profit event, the conference strives to be inexpensive, with registration being only $260 (or $195 if you register prior to Jan 15th), with a further discount for students. On the day before the conference we are running a full day of classroom tutorials (extra charge per class) and then after the conference is a free four-days of sprints, which are informal gatherings of programmers to work together in coding on various projects. Sprints are excellent opportunities to do agile pair-programming side-by-side with experienced programmers and make new friends. Other activities are lightning talks, which are 5-minute presentations to show off a cool technology or spread the word about a project, open space talks, which are spontaneous gatherings around a topic and, new this year, a Python Lab where experienced and novice programmers will work together to solve challenging problems and then present their solutions. The conference is also running four keynote talks by leaders in the programming field, with a special focus on education this year: "The Power of Dangerous Ideas: Python and One Laptop per Child" by Ivan Krstic, senior member of the One Laptop per Child project "Premise: eLearning does not Belong in Public Schools" by Adele Goldberg, of SmallTalk fame "Python 3000" by Guido van Rossum, creator of Python "The Importance of Programming Literacy" by Robert M. "r0ml" Lefkowitz, a frequent speaker at O'Reilly conferences I believe you will find the conference educational and enjoyable. More information about the conference along with the full schedule of presentations with abstracts, is available online: http://us.pycon.org/ Thanks for any help you can give in spreading the word, Jeff Rush Co-Chair PyCon 2007

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Why the same directories:instance and skel
by Steve Han 10 Jan '07

10 Jan '07

I found thar subdirectory instance has completly the same as subdirectory skel in zope's home directory.What consideration for that from point of view of software designing?Thanks a lot. -- Steve Han

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External Method and XML-PRC (Maybe a bug)
by Phani Kumar Arava 10 Jan '07

10 Jan '07

Hi, Iam trying to use Zope as an App server (basically to provide an XML-RPC interface) for a certain application . I have a function called addFile in the External Method. def ext_addfile(self): ob=self.Files ob.manage_addFile("hello","hello") I created an external method call ext_addFile() Now I write my client using xml-rpc lib s=xmlrpclib.Server("<hostname>") s.ext_addFile() And this adds a file to my directory. This freaked me out. Because i was anonymous user and this shdnt happen. The next thing i did was create a python script of the same structure and called it addFile() ob=context.Files ob.manage_addFile("hello","hello") Now I run my client xml-rpc program s=xmlrpclib.Server("<hostname>") s.addFile() and its fiving me unauthorized as expected. So basically i dont know why is this happening. Is this due to some permission problems i have on the directory or External Methods, or something which iam totally missing. -- Phani Kumar Arava Grad Student 1560 Worthington Street Department Of Computer Science Columbus Ohio 43201 2015 Neil Avenue Ohio State University Columbus Ohio-43210 Contact: (614)-286-2618 URL : www.cse.ohio-state.edu/~arava/ mailto: arava.3@osu.edu,phani.arava@gmail.com, arava_phani(a)yahoo.com

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Re: [Zope] all_meta_types confusion
by Gabriel Genellina 09 Jan '07

09 Jan '07

At Tuesday 9/1/2007 12:57, Garth B. wrote: >def all_meta_types(self): > return ( > { > 'name' : 'Web Page', > 'action': 'manage_addProduct/DWT/WebPage_add', > 'permission': 'Add Web Page', > }, > ) Make sure you use *exactly* the same string to define permissions everywhere; better use a global name. -- Gabriel Genellina Softlab SRL __________________________________________________ Pregunt�. Respond�. Descubr�. Todo lo que quer�as saber, y lo que ni imaginabas, est� en Yahoo! Respuestas (Beta). �Probalo ya! http://www.yahoo.com.ar/respuestas

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Recovering from Data.fs
by Rowan Woodhouse 09 Jan '07

09 Jan '07

Hi, I'm trying to recover a zope instance from a hardware failure. The only thing I have left is the backed up Data.fs file. I'm not entirely sure which version of Zope was used but I think it was 2.9 (certainly not 3), or what the install paths were for the instance or zope. When I try and use the backed Data.fs in a new zope instance I get the following error: Site Error An error was encountered while publishing this resource. Error Type: AttributeError Error Value: __getitem__ >From my understanding the paths for the zope instance have to be the same for Data.fs to work correctly. Is that correct? If so how can I determine what version of zope was being used and what the paths were for the backed up Data.fs? Thanks in advance, Rowan

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Re: [Zope] need advice on mass data processing
by Allen Huang 09 Jan '07

09 Jan '07

Sorry Andreas.. My product is rewritten in python placed in the product folder. So yes, it is a instance of a class. In the future, I will be storing more data into one instance from other dbase file (The total columns may vary). I'm still in the developing stage and this is just a test run to know that is the length of processing time I'm look at. I want each entry to be an instance because I'm planning to create other interactive functions (edit and query(ZCatalog maybe, I'm not sure yet) and more ) for particular info. I've never thought of using a BTree because I don't know enough about it. I'll look into it but will BTree still be a better choice than making instance if I'm going to make interactive functions? Any other suggestions? ----- Original Message ---- From: Andreas Jung <lists(a)zopyx.com> To: Allen Huang <swapp0(a)yahoo.com>; Zope <zope(a)zope.org> Sent: Tuesday, January 9, 2007 1:55:34 PM Subject: Re: [Zope] need advice on mass data processing --On 8. Januar 2007 19:28:32 -0800 Allen Huang <swapp0(a)yahoo.com> wrote: > I have a data file that has over 110000 entry of 3 column data (string, > float, float) > currently I have written my program so it will do an entry by entry > processing with zope. This operation is like this > 1. read data (the data file) > 2. create product (a python product that store three field data: one > string and two float data) 3. update product (update the three field > entries) Please name things the right way. A "Product" is basically a Zope/Python package that contains definitions of classes, scripts, templates etc. You mean instances of a particular class? > > when I first tried it out with the first 1000 entries it took about 30 > seconds. That means its going to take 50 ~ 60 minutes for 110000 entries. You're creating 110k instances for storing a string and two floats? If yes, that's stupid idea. You can persistent large amounts of data within a single instances by using Zope BTrees. > It not every day that you have to process over 110000 data entries but > processing over 60 minutes is still kind of long. > What kind of processing? -aj __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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How to setup and show zope server's homepage to clients?
by Steve Han 09 Jan '07

09 Jan '07

Forgive me for unpatience.I installed zope as server to serve business's content as homepage.How can I do that using ZMI?First make a folder and then...... Thanks a lot. -- Steve Han

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