April 2000 - Zope-Dev

problems with dtml-if
by fog＠mixadlive.com 03 Apr '00

03 Apr '00

Hi *, my Translator (ok, not only mine...) product has a big problem: it does not work inside a dtml-if tag. does anybody know if the dtml-if tag does something strange to the namespace? apparently the render() method gets called with a much reduced TemplateDict if the dtml-lvar tag is inside a dtml-if. *sigh* federico -- Federico Di Gregorio MIXAD LIVE System Programmer fog(a)mixadlive.com Debian GNU/Linux Developer & Italian Press Contact fog(a)debian.org All programmers are optimists. -- Frederick P. Brooks, Jr.

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Python 1.6 a1
by Stephan Richter 03 Apr '00

03 Apr '00

Hello everyone, I finally got around checking the Python site again, and what did my tired eyes see? Python 1.6 a1 is out and a roadmap for the next releases. What makes the entire subject so interesting is that Python 1.6 will support unicode and OpenSSL (in the socket, httplib, urllib). Furthermore, there will be a module called sre, which supports unicode regular expressions. What does that mean? I don't know, but maybe we have a major Zope release coming up supporting unicode and OpenSSL (ZServer)? I would love to see it, since I would not need to use Apache anymore. Due to the incompatibilities in the Python code that would mean that Zope would also be backward incompatible; does that mean it would be Zope 3.0.0? I would love if some folks from Digital Creations could comment on that. What is the plan? Regards, Stephan -- Stephan Richter - (901) 573-3308 - srichter(a)cbu.edu CBU - Physics & Chemistry; Framework Web - Web Design & Development PGP Key: 735E C61E 5C64 F430 4F9C 798E DCA2 07E3 E42B 5391

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XML-RPC woes
by David Brown 02 Apr '00

02 Apr '00

I'm trying to use XML-RPC in a Zope product (specifically, I'm trying to make Userland's Pike work with Zope), and when calling my functions from outside (calling in to Zope), it seems to always return a "500 Internal Server Error". Which, of course, rolls back any changes I may have made. I've seen traffic on the list about this before, was there ever any resolution? dave http://zopefish.weblogs.com/

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RE: [Zope-dev] ZServer speed enhancement (I hope)
by Brian Lloyd 02 Apr '00

02 Apr '00

> I got to poking around inside medusa's guts and said, "Hey, > asyncore.poll() is the innermost loop, why not rewrite it in > C?" So I did. > > <snip> > I hope that for heavily loaded sites with many > connections that > it will produce a noticable performance improvement. But then, you > probably shouldn't try this on a heavily-loaded site yet, > unless you can > tolerate some downtime... If you want to make this a standard piece of > Zope (or medusa), that's okay by me, just let me know. Andy - Do have any sense yet of the speedup? Just some basic load tests using ab against a specific set of URLs with and without the patch would provide some not-very-scientific-but-still-useful feel for how big the win is... Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Re: Uploading part of a product in constructor method
by Alexandre Ratti 02 Apr '00

02 Apr '00

Hello Andrew, Did you specify enctype="multipart/form-data" in your FORM tag? Here is an example from a ZClass I use: <FORM action="PDFFileClass_add" enctype="multipart/form-data" method="post"> ... <INPUT type=file name="file" size="30"> ... </FORM> HTH. Alexandre At 12:00 01/04/2000 -0800, you wrote: >Date: Sat, 1 Apr 2000 17:37:34 +0600 >From: Andrew Golovin <exper(a)inbox.ru> >Subject: [Zope-dev] Uploading part of a product in constructor method > I'm trying to create a product to store HTML-file with comment and > title fields. In product i have file with id "text". Add form looks: > > ... > <tr><th>File</th> > <td><input type="file" name="file"></td> > </tr> > ... > > Add method: > > ... > <dtml-with "manage_clone(ArticleClass,REQUEST['id'],REQUEST)"> > <dtml-call "text.manage_upload(REQUEST['file'])"> > ... > > After adding instance of product in folder i have path string in > file text instead of downloaded html-source. what i'm doing wrong? > don't tell me to use python external method in product. i want to > do it in terms of dtml.

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Updated GUF prerelease
by Stuart 'Zen' Bishop 02 Apr '00

02 Apr '00

My patch release of GUF turned into a fairly hefty rewrite. Version 1-2-0 is now available on the web site, and I'll be announcing it to the main mailing lists and the web site in a few days time unless there are glaring problems. I'd be interested in hearing if this release works with the Chameleon product - I had a patch to incorporate, but it appeared to be causing other problems and probably not needed anymore. Authors of other user sources may want to go over the _cookie_validate method - I now have authentication via higher acl_users folders working, while still keeping the nice cookie login screens (and without that dodgy 'crawl up the tree' code which didn't really work anyway). -- ___ // Zen (alias Stuart Bishop) Work: zen(a)cs.rmit.edu.au // E N Senior Systems Alchemist Play: zen(a)shangri-la.dropbear.id.au //__ Computer Science, RMIT WWW: http://www.cs.rmit.edu.au/~zen

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Uploading part of a product in constructor method
by Andrew Golovin 01 Apr '00

01 Apr '00

Hello! I'm trying to create a product to store HTML-file with comment and title fields. In product i have file with id "text". Add form looks: ... <tr><th>File</th> <td><input type="file" name="file"></td> </tr> ... Add method: ... <dtml-with "manage_clone(ArticleClass,REQUEST['id'],REQUEST)"> <dtml-call "text.manage_upload(REQUEST['file'])"> ... After adding instance of product in folder i have path string in file text instead of downloaded html-source. what i'm doing wrong? don't tell me to use python external method in product. i want to do it in terms of dtml. thanx in advance. Best regards, Andrew http://exper.ural.ru/ mailto:exper@inbox.ru

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Re: future searching of chinese text... (was: that JPython thing)
by Michel Pelletier 01 Apr '00

01 Apr '00

Moved to zope-dev. chas wrote: > > >> 3. support of unicode > > > >Ah, as soon as python does, we do. Also, soon there will be a Japanese > >Vocabulary to support Japanese searching of text, and after that we are > >going to try Chinese. In Zope 2.2, using these examples, you can create > >a Vocabulary object for the language of your preference. > > Just on this subject : > > a) You may find the Perl mandarin text-splitter at www.mandarintools.com Yes I found those recently. > very useful. I rewrote it in Python once but my Perl sucks so you may > wish to do this yourself. Otherwise, e-mail me for copy ... it's so > short I'm sure you'd rather not trust mine though. I don't know Perl at all so I'm probably not going to investigate this, unless the algorithm is pretty simple. Also the morphological dictionary looks like it can get big, I'd like to use a more advanced data structure than just a flat file dictionary; the splitter is used very often, and constantly refering to a flat file would be horrible. I was probably going to use their dictionary to start with. > b) What algorithm do you use in your searching of text ? Is it just a > simple frequency tally ? I'm not sure what a simple frequency tally is. A text index is a mapping from a word id to a sequence of (documentid, score) tuples. o The word id (which is an integer) is mapped to a word by the Lexicon, o the document_id (which is also an integer) is mapped to a 'document' (and Zope object really) by the Catalog. o The score is the number of times the word that maps to the word id was found in the document that maps to the document id. Text indexes do not make any assumption about what a 'word' is, or how it came to be a word. All language specific information, such as how to split a document in a certain language into words, is handled by the Lexicon. The splitting of a 'document' into words is done by the Splitter object provided by the Lexicon. The Splitter object is what would need to implement the morphological analysis algorithm for whatever language you are going for. In the case of english, this is very simple and involves splitting a document up at whitespaces. The algorithm for Chinese or Japanese is much harder, as you're aware. -Michel

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socket newbie question
by Toby Dickenson 01 Apr '00

01 Apr '00

In select_trigger.py, the non-posix version of the trigger class binds a socket to a port on the address 127.9.9.9. Can anyone explain the significance of using this address, rather than 127.0.0.1 ? Thanks, Toby Dickenson tdickenson(a)geminidataloggers.com

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Re: Zope-Dev -- confirmation of subscription -- request 269114
by Andrew Golovin 01 Apr '00

01 Apr '00

confirm 269114

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