March 2000 - Zope-Dev

unpickleable error
by auto44082＠hushmail.com 12 Mar '00

12 Mar '00

I posted the whole problem to the list earlier but had no takers. So I'm trying to break it down and figure it out that way. Does anyone know what causes unpickleable errors? I've got a dtml-method which gets called from another dtml-method/form where a user enter's data. (namely a file to upload, and a check box indicating whether or not they want the file converted). All my dtml method does is change data in a few already-defined properties. I've commented out my dtml statements and put them back in one at a time, to see if I can isolate the one which is causing the error. Here it is: <dtml-call "manage_changeProperties(upload_file=REQUEST['new_file'],)"> "new_file" is the name of an input field of type "file" in the form the dtml method containing the line above was called from. If i replace the line above with the following: <dtml-call "manage_changeProperties(upload_file='This is a test',)"> things work fine. However, as it is, I get an Unpickleable Error (see traceback below). I'm not sure what difference it makes, but the file I'm supposedly uploading is a MSWord Document. Does anyone have ideas? Thanks! -Andy Error Type: UnpickleableError Error Value: Cannot pickle objects ---------- Traceback (innermost last): File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local/Zope/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: asdf) File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 169, in publish File /usr/local/Zope/lib/python/ZODB/Transaction.py, line 237, in commit File /usr/local/Zope/lib/python/ZODB/Connection.py, line 325, in commit (Info: (('*sznqgGH9XT1HaHOlGQ5Zsg==', 'SmartDTML'), '\000\000\000\000\000\000\002h', '')) UnpickleableError: (see above) IMPORTANT NOTICE: If you are not using HushMail, this message could have been read easily by the many people who have access to your open personal email messages. Get your FREE, totally secure email address at http://www.hushmail.com.

4 4

Zope IDE
by JB 11 Mar '00

11 Mar '00

I've been poking thru the archives of this list and there was a brief thread regarding a Zope IDE back in January. I wondered if there has been any futher discussion/development in this area. Recently I put together simple a way to edit DTML src via the Medusa FTP, mainly because I've had it trying to edit src in Netscape. I've been poking around looking into XML-RPC as a way to do management without having that *&^%@$#^$ browser in the way and wondered if anything was happening in that dept, or if anyone was interested to have anything happen in that dept. BTW, I have checked out the Mozilla list too. Another browser isn't it? cheers jim

2 3

Client.py looses port? Bug?
by Loren Stafford 11 Mar '00

11 Mar '00

I've found that absolute_url does not return the port number when the request was created by client.py. I may not have isolated the problem at the most detailed level, but here's one way to reproduce it. An object (zev3) in this case has two methods for the purposes of isolating this problem: def shoot(self, client=None, REQUEST=None, RESPONSE=None, **kw): """Track down a problem in absolute_url() """ from ZPubLisher import Client import Loggerr loggerr=Loggerr.loggerr myurl=self.absolute_url() emsg='Shoot: %s' % myurl loggerr(100, emsg, detail='') Client.call('%s/%s' % (myurl, 'show')) def show(self, client=None, REQUEST=None, RESPONSE=None, **kw): """Track down a problem in absolute_url() """ import Loggerr loggerr=Loggerr.loggerr emsg='Show: %s'% self.absolute_url() loggerr(100, emsg, detail='') Executing "show" by typing "http://127.0.0.1:8080/zev3/show" into the browser produces this log entry. ------ 2000-03-10T21:47:04 PROBLEM(100) Products.ZScheduler.Loggerr Show: http://127.0. 0.1:8080/zev3 Executing "show" by typing "http://127.0.0.1:8080/zev3/shoot" into the browser produces this log entry. ------ 2000-03-10T21:44:19 PROBLEM(100) Products.ZScheduler.Loggerr Shoot: http://127.0.0.1:8080/zev3 ------ 2000-03-10T21:44:19 PROBLEM(100) Products.ZScheduler.Loggerr Show: http://127.0.0.1/zev3 What happened with the port? I'll try to track this down further, but I'm afraid the problem is in the depths of ZPublisher somewhere. Any hints would be appreciated. -- Thanks -- Loren

4 3

Missunderstanding of DTML Methods and acquisition?
by Walter Brunner 11 Mar '00

11 Mar '00

I have the following problem: There is a folder /img (containing Images). There should be a DTML-Method IManager (for managing the Images) in the folder /. There is a DTML-Document index_html somewhere in the hierachy (let's say /user/regions) If I call the following line from /user/regions/index_html: <dtml-var "img.objectIds(['Image'])"> everything is OK. (I get a list of all images) If I call the following line from /user/regions/index_html: <dtml-var "IManager()"> and IMangaer has the folling line: <dtml-var "img.objectIds(['Image'])"> there is this error message: Error Type: NameError Error Value: img Why can't I call img.objectIds(...) from the DTML-Method? I also tried putting IManager to the img-folder, but the result was the same. Please help! Walter

2 1

Problem uploading large files
by Alexander Limi 11 Mar '00

11 Mar '00

Hi. I thought I should send this to the Zope-dev-list, as there was little response to my mail on the main list. I have a peculiar problem: On our site, people should be able to upload big files (MP3s) that are stored outside the ZODB. This is done via an upload form and HTTP POST. We tested the upload forms, everything worked fine, until people started uploading via slow modems. At this point, I should explain our setup: We run ZServer at port 9090, and use Apache as a proxy to forward all requests to mp3.no:80 to login.mp3.no:9090. We also use SiteAccess in combination with this. So, the problem is: When uploading large files, ie. files that exceed 30 minutes or so of upload time, things stop working. It isn't file size, it is only dependant on the time used. We've tested with, and eliminated the following possible unknown variables: 1. Different modems (from 14.4Kbps to 56Kbps) 2. Different providers 3. Different browsers - Netscape, IE 4. Different ports (upload via both mp3.no:80 and login.mp3.no:9090 directly have been attempted) 5. Different locations (upload to the ZODB and the external python method have been attempted) 6. Raising the timeout values of the Apache server have been attempted So, I'm quite puzzled. Is there a timeout value in ZServer/Medusa that can be tweaked? Or is it possible that the error lies elsewhere? An example error message is: -- Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request POST /artists/boj/prox/add_mp3. Reason: Error reading from remote server -- The Apache logs show: [Mon Mar 6 14:07:39 2000] [error] [client 129.177.138.178] (54)Connection reset by peer: ap_bgets() - proxy receive - Error reading from remote server login.mp3.no (length -1) So, do you have any suggestions as to what I might try next? As mentioned, everything works fine if the connection is fast enough. Is there a timeout I can raise the value of? This is in a pretty critical phase of our development, we should have been "live" last Friday, so we're a bit pressed for time here. Any help would be greatly appreciated. And please CC me, as I'm not on the dev-list (I'm not worthy! :) Yours puzzlingly, Alexander Limi http://mp3.no

2 3

Send simple objects to server
by Thomas Weholt 11 Mar '00

11 Mar '00

Hi, I want to extend Zope to receive simple objects made by me, put them into a Berkley DB based database located at the server and process the data. Example : User scans a cd-rom locally, the created cd-rom-object is pickled, compressed using zlib and transferred to a zope-server, where a special part, the part I want to make, receives the object and creates indexes, reports etc. Later on the user can configure how the data shall be processed, indexes created etc. and search his or other peoples data thru zope, like searching yahoo. The problem is transferring objects to the server. I`ve looked at DOPY and PYRO, but Zope has more features etc. Any ideas or hints on what documents I should read in the Zope documentation, what source-files I should study to understand this etc. ???? The server must be able to process lots of concurrent users. Thomas

2 1

Patent
by Darrell 11 Mar '00

11 Mar '00

I know this isn't how Zope works. But it's similarity is interesting. http://slashdot.org/askslashdot/00/03/05/2345247.shtml

2 1

Need help iterating through a folder
by William Peloquin 11 Mar '00

11 Mar '00

Hi Gang, I am trying to display all the DTML Documents I have stored in a folder. Basically I want to have a NewsFolder which contains DTML Documents which have news items. I want to have a news page which steps through the NewsFolder and renders each news document stored in the folder. I can step through the folder and display the title of each news document with <dtml-var title>, what would I use to render the entire DTML document? Thanks in advance. Willie Willie Peloquin esi - Vision Products Division 734.332.7180 phone 734.332.7077 fax

2 1

RE: [Zope-dev] Ante Up? (Was Re: [Zope-dev] RE: [Zope] XSL for Zo pe - a bounty on this?)
by Paul Everitt 10 Mar '00

10 Mar '00

First, I'll respect Patrick's statement to keep it on this list. However, if anybody wants to spread the word on the other list, that's fine too. It isn't just odd that a few XML messages came in at the same time. What's even more odd is that Mike and Uche (FourThought) were in our (Digital Creations) office today, working with us on integrating their XML with our Zope efforts! Serendipity, to be sure. The basic idea is that we are footing the bill for them to (a) look at getting XML Document up to 1.0, and (b) bringing their leadership to ZDOM. The latter hopefully means making 4DOM (plus some Zope-specific extensions) the replacement for ZDOM. Since 4DOM is likely to become Python DOM, this brings a ton of benefits, including some world-class talent. Note, though, what _isn't_ on the table right now: XPath and XSLT. If the "bounty" wants to get together and get that on the immediate radar, now's the time. Either fund DC or FourThought. Anybody that's interested, send me a private note and we'll get the pool going. In summary, Zope's XML started getting better yesterday morning, and the first deliverables should start landing in under six weeks. --Paul > -----Original Message----- > From: Patrick Phalen [mailto:zope@teleo.net] > Sent: Friday, March 10, 2000 4:07 PM > To: zope-dev(a)zope.org > Subject: [Zope-dev] Ante Up? (Was Re: [Zope-dev] RE: [Zope] > XSL for Zope > - a bounty on this?) > > > I'm not crossposting this, since most interested parties are likely to > be on this list. > > This could make an interesting experiment in community action. > > Obviously, the best target for this sort of development would be DC. > Their usual business model is built on a single client paying them for > consulting against a goal. What we seem to be considering here is a > consortium of users ponying up for a solution, in order to have it > quickly, but with the proviso that everyone benefits. > > I certainly think it could work and that it would lead to a quick > solution to the "problem." But it's a little like a poker game, eh? > > So, how to go about putting money in the pot? Can it be done > right here > on this list? > > > [Damian Morton, on Fri, 10 Mar 2000] > :: The bounty I have in mind is for an Open Source XSL in Zope. > :: > :: > -----Original Message----- > :: > From: Nitin Borwankar [mailto:nitin@borwankar.com] > :: > > :: > > :: > Damian Morton <morton(a)dennisinter.com> wrote > :: > > :: > > The question on my mind is: how much do other people > want XSL in Zope? > :: > > Im willing and able to put some $$$ up for a bounty on this. Is > :: > anyone else? > :: > > :: > I am willing to put up $$$ for this also assuming it is to go > :: > Open Source. > :: > > :: > Nitin Borwankar, > :: > nitin(a)borwankar.com > :: > > :: > > :: > > > :: > > --------------------------------------------------------------- > :: > > > :: > > Heres what Uche Ogbuji of FourThought has to say about Zope > :: > > http://www.pythonjournal.com/volume1/issue2/col-intranetpython/ > :: > > > :: > > The Zope Dope > :: > > Digital Creations, fresh from a capital infusion, has given > :: > Pythoneers their > :: > > first complete native Web application platform in > Zope. the "Z Object > :: > > Publishing Environment". Zope is similar in scope to > Cold Fusion or > :: > > SilverStream, but open-source and python-powered. > :: > > > :: > > Zope accumulates many bits and pieces of a successful > Intranet site. It > :: > > incorporates a database management system with object > extensions (which, > :: > > unfortunately, doesn't yet support the Object Database > :: > Management Group's > :: > > specifications) as well as facilities for developing template > :: > Web sites, an > :: > > application framework, a CGI mechanism for handling > HTTP requests for > :: > > objects, an HTTP and FTP server, and a comprehensive > :: > application framework > :: > > to tie it all together. Z Templates are developed > using a proprietary > :: > > XML-based language, the Document Template Markup Language > :: > (DTML). ZTML does > :: > > make some departures from the XML community in such areas as > :: > style-sheets, > :: > > but it is hoped that Digital Creations or other contributors to > :: > Zope will > :: > > work to close that gap. > :: > > > :: > > Zope is a synthesis of Digital Creations' many earlier > products, such as > :: > > Bobo, Principia and PCGI. Bobo has been especially popular > :: > among Python/Web > :: > > programmers, and Zope looks poised to retain the > tradition. If Zope can > :: > > move a bit closer towards object database and XML-processing > :: > standards, it > :: > > is likely to be quite popular outside the Python > community as well. > :: > > > :: > > _______________________________________________ > :: > > 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 ) > :: > > :: > > :: > :: > :: _______________________________________________ > :: Zope-Dev maillist - Zope-Dev(a)zope.org > :: http://lists.zope.org/mailman/listinfo/zope-dev > :: ** No cross posts or HTML encoding! ** > :: (Related lists - > :: http://lists.zope.org/mailman/listinfo/zope-announce > :: http://lists.zope.org/mailman/listinfo/zope ) > > _______________________________________________ > Zope-Dev maillist - Zope-Dev(a)zope.org > http://lists.zope.org/mailman/listinfo/zope-dev > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope ) >

1 0

Globally unique id's in Zope in a new way
by Jason Spisak 10 Mar '00

10 Mar '00

Zopsters, I use the Catalog for quite a bit of jumping around the ZODB, and have a 30,000 plus objects in a system. I like the idea of not having to worry about id's conflicting with other numbers that might appear (invoice numbers, employee numbers, etc...) so I don't like to use a counter for ids. The ZopeTime() to int to string conversion works unless you are programatically creating multiple items in the same folder, and have a descent processor. I have derived the following bad hack from the code used to generate ZClass ids. Does anyone know off hand how many different combinations this offers? Is it considered unique? It returns a url valid string with no special signs. import md5, base64, time, string from urllib import quote from whrandom import choice def unique_id(self): id=md5.new() id.update(self.absolute_url()) id.update(str(time.time())) id=id.digest() id=string.strip(id) id=string.strip(base64.encodestring(id)) id=quote(id[:-2]) seq = string.hexdigits + string.lowercase + string.uppercase new_id = '' for l in id: if l == '/' or l == '%': new_id = new_id + choice(seq) else: new_id = new_id + l return new_id If anyone has a more elegant solution I would love to set my tired eyes on it. ;-) All my best, -- Jason Spisak 444(a)hiretechs.com

5 9