- Zope-Dev - Zope lists

RE: [Zope-dev] Policy question: correct location to put member co ntributed libraries libraries
by Brian Lloyd 27 Mar '00

27 Mar '00

> I have a PersistentList and PersistentDict library available > for download > over at zope.org. I had the tarball put the library in > lib/python/ZODB, > which is clearly wrong (must of had a brain cramp that day :). > > Question -- where should it go? > > It could install itself as if it were a Zope Product: > lib/python/Products/PersistentListDict/(PersistentList.py, > PersistentDict.py, readme.txt) > > ... > > However... it's not really a Product. It's a Python class to > be called > from Python code. It doesn't participate in or have anything > to do with > the Zope product interface at all. Andrew - Probably the best place is a package in the lib/python/Shared/ directory of the Zope installation. This is the place for packages that are not product-specific. For example, lib/python/Shared/DC contains packages from Digital Creations - you might want to put your stuff in lib/python/Shared/Foo/PersistentListDict (where "Foo" is your organization or some other contextual name to distinguish your packages). Hope this helps! Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

1 0

Policy question: correct location to put member contributed libraries libraries
by Andrew Wilcox 27 Mar '00

27 Mar '00

I have a PersistentList and PersistentDict library available for download over at zope.org. I had the tarball put the library in lib/python/ZODB, which is clearly wrong (must of had a brain cramp that day :). Question -- where should it go? It could install itself as if it were a Zope Product: lib/python/Products/PersistentListDict/(PersistentList.py, PersistentDict.py, readme.txt) Then developers who wanted to use the library could use the following incantation: from Products.PersistentListDict.PersistentList import PersistentList mylist = PersistentList() However... it's not really a Product. It's a Python class to be called from Python code. It doesn't participate in or have anything to do with the Zope product interface at all. Thoughts? Andrew

1 0

Passing data to/from Python
by Mark Wexler 27 Mar '00

27 Mar '00

Dear Zopistas, I am in the process of learning about Zope, and trying to determine whether to make the switch from pure Python CGI scripts. If someone could answer the following questions (and I apologize, as it will probably seem naive), it would really help. Let's suppose I have a page where the user queries a data base, for instance a telephone directory. The telephone directory is in an Excel file. At present, I have a CGI script that opens an ODBC.Windows connection, executes an SQL query, and outputs the results (names, phone numbers) as an HTML table using "print". What is the best way to do this in Zope? Here are the points that I don't get: 1. It seems that the only way to establish a DB connection is through Gadfly. There are warnings everywhere that Gadfly is inefficient. Therefore, I want to use ODBC (ODBC.Windows), like I did before. How? 2. I might eventually need to do complex calculations on the retrieved data, so I would prefer using Python code in an external method, rather than a DTML method. In order to get Zope to accept the line "import ODBC.Windows", I had to copy the ODBC and DateTime directories from my regular Python installation (PYTHON/lib) to ZOPE/bin/lib. But then, when I try running the script, I get one of the following problems: a. If I go through authentification, the script runs, but I cannot establish the connection to the database. b. If I type in the URL of my search page directly, without authentification, I get a Zope error: "initialization of module mxODBC failed (exceptions.AttributeError:mxDateTimeAPI)". Is my ODBC.Windows installation wrong, or do I have a more fundamental problem? 3. What if my Python function in my external method wants to return information to my DTML method? For instance, how do I return a Python list, and what do I do in my DTML method to process it (e.g., output a line for every member of the list)? 4. The way I call my Python function now is through the <form method="POST" action="search"> tag, where "search" is the external method ID. The form has a field called "name", and my Python function has an argument also called "name", and so it recuperates the string that was entered in the "name" field. Can I pass the "name" as an argument to a DTML method? If these questions have answers, I would really appreciate them. Otherwise, if I'm completely off-base (for instance, if I'm thinking in Python terms and not in Zope terms), please point me in the right direction! Thanks in advance. Mark Wexler

5 5

Zope Users Group - Columbus/Ohio
by James Orbin 26 Mar '00

26 Mar '00

Hello All: Slightly off topic but in the interest of advancing Zope development: I would like to set up a Zope/XML/Python/Related Issues users group for the Columbus area and would like to know if any subscribers from the list who are in the Columbus area would be interested (or if one has formed, let me know). I'm sure we could work things out to include those from the Cincinatti/Cleveland area as well. I would also be interested in info on a national users group as well. Please contact me directly at Jorbin33(a)hotmail.com (unless it involves the national level or user groups in general - then please post to the list as others may be interested). Thanks, Jim Orbin ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

1 0

Installation/MySql Operational Status
by Ben B. 26 Mar '00

26 Mar '00

Hello All, This may be a semi-newbie question, but it seems to be stumping us all around here. We are trying to get MySql 3.22 and Zope 2.1.6 working together. According to all the documentation that we have been able to read, we are required to install Zope from source files. Does anyone out there have a clear cut answer to this problem? Is it feasable to use RPM's instead of src? Any documentation on installing from source, integrating with mysql or any of the above would be invaluable at this point. Any direction towards good documentation would also be helpful. Also, any python commands or extensions that we would have to build would be essential. I have yet to see a good explanation to this issue. If anyone has done it, or knows the correct way to get these 2 working together, please let us know. Thanks ----Ben B.

1 0

How to reindex in catalog from external method?
by Helge Tesdal 26 Mar '00

26 Mar '00

I'm having problems using reindex_object from external method. The external method is add_mp3 at /artist/track/add_mp3, and the code I use when trying to reindex is: self.reindex_object I don't get any errormessages, it just doesn't update the catalog. Am I trying to reindex the external method? self.id returns the id of track, so I assumed self.reindex_object tried to reindex the track. Thanks in advance -- Helge Tesdal tesdal(a)stud.ntnu.no

2 2

Re: I18N requirement
by Sin Hang Kin 26 Mar '00

26 Mar '00

> What do we need ? > - A way to offer language choice based on browser settings. > - The choice needs to be overridable (eg. first check cookies, then browser > settings, then a property, then whatever.) > - The language-choice services need to be available for existing products > and objects. I would like to add the capability to store data in unicode (ucs2/utf8) and catalog and search under the same code. Accept form in other encoding and convert them to unicode. But send to user agent with different encoding based on agent's perference.

1 0

[Python-checkins] CVS: (Does this break Zope/Medusa?)
by Patrick Phalen 25 Mar '00

25 Mar '00

[Guido van Rossum, on Fri, 24 Mar 2000] :: Update of /projects/cvsroot/python/dist/src/Modules :: In directory eric:/projects/python/develop/guido/src/Modules :: :: Modified Files: :: socketmodule.c :: Log Message: :: Fix all routines to use PyArg_ParseTuple(), and add ":name" to the :: argument format strings. :: :: THIS WILL PROBABLY BREAK LOTS OF CODE!!! Ugh ... that last line sounds ominous

1 0

interesting html_quote puzzle
by Sam Gendler 25 Mar '00

25 Mar '00

I have a form field on a page that is the first page in a multi page wizard. This means that the values from the first page must be embedded in the subsequent pages as hidden fields. How can I deal with someone putting a double quote (") in a text box. When I put the hidden field in the page the value="<dtml-var field>" seciton winds up with extra quote marks, wreaking havoc with the browser. If I html quote or url quote the value of a hidden field, the browser does not un-quote it before quoting it again for transmission. This ileaves me with a permanently quoted value, which is unacceptable for reasons that I won't go into right now. Any thoughts? --sam -- -------------------------- Sam Gendler CTO, Impossible, Inc. 1222 State St. Suite 250 Santa Barbara, CA. 93101 p: 805-560-0508 f: 805-560-0608 c: 805-689-1191 e: sgendler(a)impossible.com

2 1

Translator 0.1 released
by Alexandre Ratti 24 Mar '00

24 Mar '00

Hello David, Just a quick note about your message. I haven't tested your product yet but I will this week-end. I have a lot of misgivings about any automated translation system based on words (I am a freelance translator and I turn green whenever I see the output of automated translators on the Web). It just doesn't work because you almost never have a one to one mapping between words in languages. The example you decribed below could generate quite a mess in French for instance because of the complex syntax (eg. "green" can be "vert", "verte", "verts" or "vertes" depending on the context). IMO no translation should be performed if there isn't a 100% match between the glossary table and the localizable string. Example: Translation glossary: {'Squids are beautiful': {'fr': 'Les poulpes sont magnifiques'}, ...} Localizable strings in a text: 1st instance: <dtml-translate>Squids are beautiful</dtm-translate> 2nd instance: <dtml-translate>Squids are beautiful in summer</dtm-translate> The 1st example should be translated because it matches. The 2nd shouldn't. If no match is found then the default (source) language is left as is. If you want to create a glossary of common phrases (a so-called "translation memory") you need to store individual sentences or groups of sentences. Then you can reuse translated sentences across texts. Automated sentence translation is a bit safer because sentences provide much more context than individual words. To summarize, there is a trade-off : when you use longer translation units, you get much higher translation quality but less leverage (i.e reuse) across texts. This is a complex issue... if I get started on it I will talk you to sleep :-). Cheers. Alexandre At 03:37 24/03/2000 -0800, you wrote: >Download the translator from > > http://www.zope.org/Members/jdavid/translator > >The translator product is just the old vocabulary product renamed >following the Michell advices and with a new translate tag which >is a first implementation of the Shane's proposal. > >Suppose the data contained by our Translator instance is: > > {'my': {'es': 'mi'}, > 'house': {'es': 'casa'}, > 'is': {'es': 'es'}, > 'green': {'es: 'verde'} > } > >Then if you type: > > "<dtml-translate>my house is green</dtm-in>" > >and "languages" is "['es']" then the result is "mi casa es verde" >(and it's right!!). > >It does it by: > > - split the string > - translate each word > - join the string > >Yes, this is only a bogus algorithm but it shows how it would be. >Future releases should allow to plug more intelligent translators.

2 2