[Zope-dev] CopySupport and cookies
Hi, Using inside-out virtual hosting (and other forms of URL munging) can make copy-and-paste break. For example, an object a.b.c addressed as http://foo.com/magic-string/a/b/c will not be copiable because CopySupport uses BASEPATH1 as the Cookie path: def cookie_path(request): # Return a path value for use in a cookie that refers # to the root of the Zope object space. return request['BASEPATH1'] or / is there a good reason why this can't just return / as the cookie path? Seb -- [] j a m k i t web solutions for charities seb bacon T: 020 7549 0520 F: 020 7490 1152 M: 07968 301 336 W: www.jamkit.com ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: Demonstration subversion repository created
Yves Moisan wrote: A bit off topic here : browsing the repository, I thought it would be nice if svn://svn.zope.org/repos/main/Zope3/trunk could be recognized as a protocol by Mozilla. http://protozilla.mozdev.org/ seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: Zope3, CMS, IDEs
Joachim Werner wrote: I've proposed that a couple of times already. There are two problems in real life: 1) Somebody has to take care of managing the project. 2) If politics take over, things will quickly fall apart. I agree. I hope that Heimo Paul's session at EP will help work through some solutions to these points. I disagree that performance is a problem in Zope 2. I've heard that a couple of times. But let's face it: Of course you can get Zope to deliver partly dynamic pages at high speed and if you use caching you can deliver pages at wire speed, but it will not be nearly as fast as a solution using Java or .NET/C# if we are talking about a lot of two-way traffic and CPU-intensive tasks in the back end, e.g. an online shopping mall, a booking system, or a groupware. Well, the site I am talking about is a real-world, huge-traffic, highly dynamic, personalised shopping site and multiple bookings system which gets millions of visits a day. It performs very well under extreme load in test conditions, *even when you take squid out*: better than the previous Java solution. I would take this as a pretty good indication that performance need not be an issue when evaluating Zope. Let's face it: there are plenty of badly-performing Java sites out there ;-) I do agree that it is hard to find best practice information about this subject, though. I am planning to do a talk about it at Europython. If Chris M doesn't mind, I'll be using some of his material, and elaborating on it: http://www.plope.org/misc/szweb The reason the Zope site I'm talking about performs better, IMO, is nothing to do with the language, but to do with (a) the better application design and (b) the ease of scaling horizontally with ZEO. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Zope3, CMS, IDEs (was: [Zope-dev] The bleak Future of Zope?)
Joachim Werner wrote: There are quite a few Zope-based CMS solutions out there, and most of them are better than their commercial counterparts in many respects. But if we had managed to start a joint CMS effort (other than CMF, which is a failure by design) two or three years ago things would look even better now. It would be great to start something like a Zope3 CMS interest group up, to pool all our CMS experience - start collecting requirements, etc. Seems like a mighty large task, though :-) I'd like to at least have a session on this topic at Europython. What we should work on in the future is development tools for Zope. If I get the stuff I know about Zope 3 right it should be relatively easy to write IDEs (or plugins for existing IDEs)... I know it's said to be slow, but Eclipse has some pretty major momentum behind it... has anyone round here looked at it in detail? I guess it requires you to write loads of Java to produce new plugins :-( Finally we need industry-strength performance. We are just lacking the performance (mostly thanks to Python being a beautiful, but not really fast language). I disagree that performance is a problem in Zope 2. With a combination of profiling to eliminate bottlenecks, ZEO, and Squid, Zope hums along beautifully. We are consulting for a company that is in the process of replacing their Java front-end with Zope. They have huge amounts of traffic, and are impressed with Zope's performance compared with their comparable Java system. Seb P.S. I don't agree with your pessimistic assessment of CMF, or Plone. They're both good at what they do. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: The bleak Future of Zope?
Personally, I think Zope3 has a great future, and will pick up a much larger community than Zope2 ever did, because it's better designed and better documented. In general, the people who stand to gain immediately (or pretty soon) from Zope3 are enthusiasts; newcomers; and ZC. However, if the process of moving away from Zope2 is not managed very carefully and slowly, the people who stand to lose are companies that already rely on Zope2. I agree that the solution is probably to allow the community more control over the release cycle, web site, and repository. We could follow various other models from elsewhere in the OSS world, and see what happens. I believe that ZC's apparent reticence on this is because they are (understandably) interested in preserving control over their brand, which overlaps rather largely with the software. What would be helpful is a definitive statement from ZC as to whether they would consider relinquishing some of their control over Zope 2. Perhaps, instead of a code fork, we could have a brand fork, with a different website, a different name, and a different release schedule (think Fedora?) Seb Andreas Jung wrote: From my own prospective as developer I would like to see that Z2 development over the next two or three years continues because there is too much Z2 legacy code in the world and not everyone is interested in following the migration path for Z3. To be honest I doubt that large custom applications can be migrated with a justifiable amount of time and money (just because they are completely bound to Z2 components and its architecture). To clarify my standpoint: I am not an opponent of Zope3 but Zope 3 does not convince me in the current stage and gives me little attraction for the projects I am working onit just can not compete with Zope 2 if you are building large-scale systems at this time. Andreas ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] TAL i18n breakage in 2.7
Hi, Zope 2.7 introduced a change in its translation interface. Previously a translation service could return None, but now returning None causes an assertion error. http://cvs.zope.org/Zope/lib/python/TAL/TALInterpreter.py.diff?r1=1.77r2=1.78 This will break applications (e.g. Plone1) which use Nuxeo's TranslationService, which does return None. Is there a good reason for introducing this compatibility breakage? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] TAL i18n breakage in 2.7
On Thu, Feb 19, 2004 at 09:10:30AM -0500, Stephan Richter wrote: On Thursday 19 February 2004 08:08, seb bacon wrote: Zope 2.7 introduced a change in its translation interface. Previously a translation service could return None, but now returning None causes an assertion error. http://cvs.zope.org/Zope/lib/python/TAL/TALInterpreter.py.diff?r1=1.77r2=1 .78 That is strange. The Zope 3 translation service can also still return None and we use the same TAL code. I cannot see which code change would not handle the None. The new implementation would appear to expect the service to return the default value passed in, instead of None. From the diff linked to above: r1.77 has: xlated_msgid = self.translate(msgid, i18ndict, obj) # If there is no translation available, use evaluated content. if xlated_msgid is None: # do some stuff r1.78 has: xlated_msgid = self.translate(msgid, default, i18ndict, obj) assert xlated_msgid is not None, self.position seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] ZCatalog fast as admin, dog slow as anonymous and other users
Jason Spisak wrote: Zopistas, My ZCatalog is fast as admin, but dog slow as anonymous and other users. Anyone had this same experience? Details: This is certainly to do with queries which run against FieldIndexes only for anonymous users. This is something the CMF does (e.g. expires and effective dates only applied for anonymous). FieldIndexes are really bad for DateTimes. Delete your date-related FieldIndexes and replace them with DateIndexes. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] KeywordIndex performance / multiunion
Tim Peters wrote: [Seb Bacon] But main the reason I'm posting is to wonder if there any reason not to use the multiunion operator instead of the union operator in UnIndex.py... it should be faster, right? It seems a touch faster in some informal tests. [Casey Duncan] Yes, it probably should be used. I think it is much faster when unioning very small and very large sets as well. Tim would know better, tho. time.clock() knows best wink. I asked time.clock(), and it says the difference between union and multiunion is not statistically significant in my scenario (7 sets of 27k catalog data record ids, with about 25k in the intersection of all 7). So I'm not going to bother changing this in UnIndex. Seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] KeywordIndex performance / multiunion
Casey Duncan wrote: On Thu, 06 Nov 2003 19:11:55 + Seb Bacon [EMAIL PROTECTED] wrote: A simple query for [A or B or C] against a KeywordIndex containing 27k objects is taking about 7 seconds on a Celeron 1.6Ghz, which seems an absurdly long time to me. guess This time may be caused by fetching from the database. If so, then the only way to speed it up is increase the ZODB cache or get faster disks. Try the former and see if it helps. /guess Yup, absolutely right. Upping the cache speeds it up to something sane. However, I don't understand why. The code does something like: set1 = self.index.get(1) set2 = self.index.get(2) sets = [set1, set2] ...so the sets will have come from the ZODB. But the bit which takes the time is the following line: result = multiunion(sets) At which point the sets have already been fetched, no? looking forward to the day I understand ZODB caches...;-) seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] KeywordIndex performance / multiunion
Casey Duncan wrote: guess This time may be caused by fetching from the database. If so, then the only way to speed it up is increase the ZODB cache or get faster disks. Try the former and see if it helps. /guess Upping the cache speeds it up to something sane. However, I don't understand why. These are TreeSets most likely. The actual members of the sets are stored in separate persistent objects. But of course :-) Thanks, seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] debugging memory leaks
Seb Bacon wrote: So, say Foo is leaking because it is referenced from O which can't be collected. Given 100 things which refer to Foo, how do I identify which one is O? And of course, then O may be leaking because it is referenced from P... I sense this question is a bit like asking someone to explain how to solve a Rubik's Cube in 3 words. Well, I have come to some kind of resolution, though I am still slightly mystified. Here's the sequence of events, in case they are of any help to others (doubtful...). Although there probably is a memory leak in my application, the one I thought I was hunting wasn't what was causing my server collapse. At first, I noticed that memory usage was increasing linearly over time until the server expired. I examined reference counts for all the classes therein, mainly using Shane's LeakFinder product (I could have used the refcounts listing on the control panel, but I found the LeakFinder's reference count display tab nicer to use.) I noticed that references to a particular Foo class were increasing in direct proportion to the memory usage, apparently without bound. I also noted that Foos are involved in reference cycles. I guess from this that maybe Foos were leaking somehow - which was incorrect. There is nothing wrong with reference cycles *per se* (see earlier in this thread). Then I looked at Bars, which were referencing Foos. Given the way that Foos are implemented (with mutual references to each other) and the fact that there may be several Foos stuck on a Bar, then a leak in a Bar could have a big knock-on effect of creating a whole ton of Foos. The number of references to Bars was also increasing without bound. This went on for ages. Worth mentioning is Barry's cool reference visualisation tool (see earlier in this thread). I had already tried my application using Zope 2.6.2 (it was on 2.6.1 before) and noted reference counts also going up rapidly, so it wasn't that, I decided. To cut a long story to a medium length, it *was* that. When using 2.6.2, I noticed that if I forced garbage collection, the refcounts went down. Going over to the database connection caches, I noted that in Zope 2.6.1 the number of cache entries bore no relation to the target cache size. In Zope 2.6.2, it did. In other words, the way my application is implemented means that *lots* of references can accumulate in the space of a single request, and something about these references meant that they were never getting cleared out of the cache by Zope 2.6.1. The cache was the culprit. Moral: always keep on top of those Zope releases ;-) What's puzzling me is that I can't see anything that changed between 2.6.1 and 2.6.2 which might have fixed this behaviour. Seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] KeywordIndex performance / multiunion
A simple query for [A or B or C] against a KeywordIndex containing 27k objects is taking about 7 seconds on a Celeron 1.6Ghz, which seems an absurdly long time to me. The bit of the operation that is taking the time is the part of the index which does a union of the results of each of the 3 query parameters. Reproducing this BTree union operation outside Zope in a unit test takes milliseconds. Very occasionally it takes milliseconds inside the KeywordIndex too. Something to do with memory usage perhaps? I'll continue looking into it. But main the reason I'm posting is to wonder if there any reason not to use the multiunion operator instead of the union operator in UnIndex.py... it should be faster, right? It seems a touch faster in some informal tests. Seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] debugging memory leaks
Tim Peters wrote: [Seb Bacon] ...but my (naive?) reading of the documentation was that reference cycles are cleaned out by the garbage collector, *unless* they define a __del__ (which is not the case here). How am I wrong? You're reading the docs correctly. It's not necessarily cycles directly involving Foo objects that causes Foo objects to leak, it can be instead that some other (non-Foo) objects in cycles can't be collected, from which the Foo objects are in turn reachable. When an object O can't be collected, then neither can any object reachable from O. gc.get_referrers() can be used to find objects that refer to a given Foo instance. It's also possible that a something S refers to a Foo instance where S doesn't participate in cyclic gc. Then any cycle containing S is immortal, regardless of whether __del__ methods are defined in the cycle, and also then gc.get_referrers() can't reveal S's existence. Sometimes such an S is in the Python core, or in Zope's C code, although the more recent the release the less likely that is (more more kinds of objects have been added to cyclic gc over time). Are you sure that *only* Foo objects are leaking? It's pretty rare, when there's a leak, to see only one kind of object leaking. You're right, there seem to be a few other things involved. I think Foo comes out top simply because it is the most numerous instance involved in the leak. So, say Foo is leaking because it is referenced from O which can't be collected. Given 100 things which refer to Foo, how do I identify which one is O? And of course, then O may be leaking because it is referenced from P... I sense this question is a bit like asking someone to explain how to solve a Rubik's Cube in 3 words. but FWIW, the kind of logic I'm using is: - run test case - notice that there are a lot of references to Foo - get an instance of Foo using sys.getobjects(0) - get referrers using gc.get_referrers(Foo) - run garbage collection using gc.collect()? - is Foo still there? Which of its referrers are still there? Incidentally, I've found some other bug. I can get Zope to segfault by calling PickleCache.minimize(3), if a Bar object has been loaded which defines a __del__ method thus: def __del__(self): print deleting, self.getId() It couldn't be related, could it? (it's borking at a point where it frees memory) Cheers, Seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] debugging memory leaks
I've got a fairly major memory leak in my application. I've followed the thread from August including Shane's suggestions about using a debug build of Python to inspect object references and the rest [1] I know from the refcounts in Zope that items of class Foo are definitely leaking, yet when I do a sys.getobjects(0, Foo) I get nothing back. Navigating all 10-ish references one by one seems a bit daunting. So I'm not sure where to go from here. Shane, you mentioned you had put together some useful functions for exploring this debug information - could you share them? Or were you just refering to the remote console you supplied earlier? Also, what kinds of Python code can cause memory leaks? I'm not really sure what I should be looking for. The only thing I can think of is hanging file descriptors, as circular references should be picked up by the gc anyway. Seb [1] http://mail.zope.org/pipermail/zope-dev/2003-August/020358.html ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] debugging memory leaks
Tim Peters wrote: snip useful info about new-style classes Debugging memory leaks can be hard, in any language. No kidding. I thought when I identified the suspect class two days ago I was nearly there ;-) Another place to look for ideas is in the top-level test.py from a current Zope HEAD checkout (or 2.7 branch, or Zope3). OK, will do. 2. Reference cycles. Big topic wink. Seeing as the suspect leaker contains code like: other = Foo() other.reciprocal = self self.reciprocal = other I fear the worst ;-) ...but my (naive?) reading of the documentation was that reference cycles are cleaned out by the garbage collector, *unless* they define a __del__ (which is not the case here). How am I wrong? Thanks, seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] _p_deactivate() and _v_ variables?
Chris Withers wrote: Casey Duncan wrote: I would argue that a better plan would be to only use _v_ vars for completely disposable data only. The application should expect that this values will be gone at any random time, not just at transaction boundaries. Agreed. Are there any situations, apart from the already discussed CMF skindata, where this currently isn't the case? I'm a bit puzzled - of what use is a variable which may disappear at any random time? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Caching Policy Manager (Was: Caching prob with AHCM and headers)
Andy McKay wrote: This thread and an application for a client has meant i've started to formulate a replacement for Caching Policy Manager. From the way I see it all the functionality in CPM (Vary etc) should be rolled into AHCM. +1 What about the don't cache the following hostnames knob for the use case I outlined previously, which enables you to circumvent caching (useful for site editors, for example)? I think adding an extra virtual host is a very natural way to ensure fresh content as it is guaranteed to have a unique key in upstream caches. seb -- [] j a m k i t web solutions for charities seb bacon T: 020 7549 0520 F: 020 7490 1152 M: 07968 301 336 W: www.jamkit.com ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] AW: [Summary] Caching prob with AHCM and headers
Fred Yankowski wrote: That makes sense. Is there a way to do that with the CMF 1.4 version of the CPM? One could, I suppose, test the names of the FSDV folders in CPM predicates, but that seems a royal PITA. That's why I'm making do with one-size-fits-all CPM policy for now. Here's how I handle caching, for the record. I use squid, which doesn't require last-modified headers. I guess that's not an option for you, or you'd probably already be using it ;-) But in any case, I don't see why Shane's suggestion of uncommenting the last-modified line shouldn't work. I use a standard HTTP Cache Manager for all our caching needs - I have yet to find the granuality allowed by CPM necessary. I add 2 or 3 cache managers to the site (e.g. slow_http and fast_http). I associate templates which need a fast turnaround (e.g. the home page) with fast_http and others (e.g. the site map) with slow_http. (BTW, in the CMF you can associate FS Objects with named cache managers by adding a file called foo.dtml.metadata with the following contents:: [default] cache=fast_http ) The only class of request for which I need to have a separate policy is requests from people who are actually editing a site. I have created a customised HTTP Cache Manager which doesn't cache requests for specified URLs. I then instruct site editors to edit the site using, e.g. 'edit.mysite.com' and to view it using 'www.mysite.com'. HTH seb -- [] j a m k i t web solutions for charities seb bacon T: 020 7549 0520 F: 020 7490 1152 M: 07968 301 336 W: www.jamkit.com ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] AW: [Summary] Caching prob with AHCM and headers
Fred Yankowski wrote: I use Squid as an HTTP accelerator in front of ZServer. What do last-modified headers have to do with this discussion? I thought that was how this thread started. I must have mis-read something. I use a standard HTTP Cache Manager for all our caching needs - I have yet to find the granuality allowed by CPM necessary. Aha, I didn't realize that an HTTP Cache Manger can now handle FSDV objects. That does seem to make the CMF CPM unnecessary for my purposes. (I'm using Zope 2.6.1, CMF 1.4, and Plone 1.1alpha2). FYI, it's nothing to do with the Cache Manager code, it's the FSObjects which have been changed to support *it*. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] PythonLibraries Product
Tres Seaver wrote: Evan Simpson wrote: Seb Bacon wrote: Could you provide a brief summary of why this is better than a folder of python scripts? Perhaps a use case which illustrates the problems of the current way of doing things? It isn't *better* than a Folder of Scripts, it's *different* :-) I have two weak use-cases, a longstanding I'm going to write that some day itch, and some aesthetic arguments. Actually, the restricted case is the one which has the real win; the free-floating library is pretty, but not semanticaally needed. An added argument: a ZPT with its own private library becomes, in effect, a Zope3 view component; adopting such beasts will ease migration to Zope3. Well, I'm completely convinced :-) I'm not quite sure about the metaphor for binding a library to a template yet, though. Could libraries be added to folders as first-class objects (you want to be able to share them between templates easily, no?) and bound to the templates using a tab on either them or the templates? Their icons would be overlaid with a visual indication of if they are bound or not. Or, could you bind them at run-time using a new tal directive? (not likely to be a popular suggestion, I know) seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: PythonLibraries Product
Evan Simpson wrote: I'm thinking seriously about writing a Product to provide collections of Python functions defined by a single source text -- PythonLibraries. This would *not* be the same as Zope 3's persistent modules, although it would provide some of the same benefits. Here's the README.txt: Python Libraries The Python Libraries Product provides support for collections of restricted Python code. A Python Library is similar to a Folder full of Python-based Scripts, except that the functions in the Library are more like ordinary Python functions than Scripts, and a single persistent global variable namespace is shared among the functions in the Library. So AFAICT it's a convenience which allows you (a) to keep related functions together; and (b) to store local variables in a convenient place. It definitely sounds useful but also a lot of work for something it's possible to manage without quite easily at the moment..? Could you provide a brief summary of why this is better than a folder of python scripts? Perhaps a use case which illustrates the problems of the current way of doing things? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: Catalog performance
Nguyen Quan Son wrote: Hi, I have a problem with performance and memory consumption when trying to do some statistics, using following code: ... docs = container.portal_catalog(meta_type='Document', ...) for doc in docs: obj = doc.getObject() value = obj.attr ... With about 10.000 documents this Python script takes 10 minutes and more than 500MB of memory, after that I had to restart Zope. I am running Zope 2.6.1 + Plone 1.0 on Windows 2000, Xeon P4 with 1GB RAM. What's wrong with this code? Any suggestion is appreciated. With getObject(), you're loading entire objects into memory in order to grab a single attribute. This is very wasteful. Try putting the attribute into the metadata for the catalog and grabbing it from there. Then you can do: for doc in docs: value = doc.attr seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] ape performance
Hi, I'm trying to use Ape for a photo album - the idea being that I just drop new photos where I normally do on the filesystem, and Zope provides a thumbnails-bells-and-whistles view onto it. Performance is extremely poor: viewing the root of the hierarchy causes *all* descendent objects to be loaded first (about 3000). Is there a way I can avoid or mitigate this problem? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] weak examples, weak exploits
On Mon, 2003-06-23 at 09:20, Jamie Heilman wrote: I'll submit a fixed Examples.zexp but I need to know how its normally prepared, ownership, etc. Is there anything special I should do? No. Just go ahead and make the changes. It would be instructive for others reading the examples to add a comment or two explaining the rationale behind the extra checking code. The file upload vulnerability was fixed in version 1.3 of Examples.zexp, though. The reason it's still turning up in 2.6.x versions is probably due to upgrades. Therefore I suppose additionally there should be a patch which examines the ZODB on startup and prints a warning if an old Examples folder is present. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] 2.6.2b3?
Just a quick repeat from last week in case it slipped from anyone's radar... Here is the important bit again: a) Any reason why I shouldn't merge BTree bugfixees into the 2.6 branch? b) If no, how about a 2.6.2b3? seb On Wed, 2003-06-18 at 17:25, seb bacon wrote: There lave been various BTree fixes lounging in the HEAD since Jan 2003 which I'd like to get into a release, basically because we have seen one of the bugs causing segfaults in production - this is the culprit: http://cvs.zope.org/Zope/lib/python/BTrees/BTreeItemsTemplate.c.diff?r1=1.17r2=1.18 a) Any reason why I shouldn't merge it into the 2.6 branch? b) Any chance of a 2.6.2b3? Seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] BTree fixes in a release?
There lave been various BTree fixes lounging in the HEAD since Jan 2003 which I'd like to get into a release, basically because we have seen one of the bugs causing segfaults in production - this is the culprit: http://cvs.zope.org/Zope/lib/python/BTrees/BTreeItemsTemplate.c.diff?r1=1.17r2=1.18 a) Any reason why I shouldn't merge it into the 2.6 branch? b) Any chance of a 2.6.2b3? Seb ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: AdaptableStorage
Chris Withers wrote: seb bacon wrote: I'd prefer just to have a method somewhere that, as Shane suggested, could be hit by URL, etc. A whole seperate server seems like overkill... Well, if by server you could mean script that gets run by cron every 1 minute and hits a URL in Zope if something has changed, then I might be in agreement ;-) Put it like this, I don't mean managed blade cluster running custom distributed architecture :-) ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Zope reference counts
Toby Dickenson wrote: On Wednesday 22 January 2003 11:43 am, Ivo van der Wijk wrote: Do these references point to the same object instances, or are these copied as well? They are independant copies Is there a way to optimize this? 1. Obviously, use fewer threads. Do you have a component that otherwise benefits from many threads? Also note that it is almost always a better use of memory to increase the cache size than the number of threads (this is the size of each cache, not the total cache size). Are you aware of the activity and cache parameters tab in the database management part of the control panel? If not, you may not be using a 2.6x Zope - there are some significant improvements in cache usage (especially under load) in these versions. Look at the Help on the cache parameters page for more info. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Re: AdaptableStorage
How about having a seperate process which just watched the files and notifed Zope when they changed? A definite possibility. It might even just poke an URL to send the notification. Since every storage will have its own unique notification scheme, which may be more or less inefficient (worst case scenario, periodic polling of entire storage for recently modified items), it might make sense to have a notification server. It would make it simpler for users to create custom storage transaction alert handlers. For different cache invalidation scenarios, Zope could poll the server as well as get poked. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Can't return / publish object of a dictionary?
Jeff Rush wrote: Yeah, the new property type in Python 2.2 is pretty cool, but out of range for use under Zope at the moment. The ExtensionClass requirement for persistence eliminates using it with new style Python classes. Why? I can't see why ExtensionClass should not work with the new property type. Or is the problem specifically to do with persisting a property? In any case, it is certainly out of range for Zope since Zope does not yet officially support python 2.2 - I just mentioned it out of interest. Cheers, seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Re: AdaptableStorage
Chris Withers wrote: seb bacon wrote: Since every storage will have its own unique notification scheme, which may be more or less inefficient (worst case scenario, periodic polling of entire storage for recently modified items), it might make sense to have a notification server. It would make it simpler for users to create custom storage transaction alert handlers. For different cache invalidation scenarios, Zope could poll the server as well as get poked. I'd prefer just to have a method somewhere that, as Shane suggested, could be hit by URL, etc. A whole seperate server seems like overkill... But what about, for example, databases which don't have an efficient way to do callbacks to external applications? You may have to do a SELECT id FROM tblObjects WHERE timestamp some_time or a similar kludge from a polling server. You may want this server to reside at the same location as the RDBMS, rather than as a thread in Zope. I'm worrying that if we are not to be restricted to Oracle or bleeding edge kernels, the notification part of the cache invalidation scheme may be (a) kludgy, (b) inefficient, and (c) utterly different in design between different storages. A server could offer a layer of indirection which could provide a single API for Zope to see, an opportunity to take the process load somewhere else, and a pluggable interface for writers of storages. On the other hand, I don't know much about RDBMS callbacks or filesystem accounting, so I could be inventing a problem to solve :-) seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Can't return / publish object of a dictionary?
Jeff Rush wrote: I use a form of the following to compute dynamic titles for Zope objects, where the 'title' attribute is the result of a method call. Modifying it slightly for your case... from ComputedAttribute import ComputedAttribute Class B(A): def getMyObjects(self): ... myObjects = ComputedAttribute(lambda self: self.getMyObjects()) In Python 2.2 (which is unfortunately not yet an option unless you are using a bleeding edge Zope) you can also use the new property type: http://www.python.org/doc/2.2.1/whatsnew/sect-rellinks.html#SECTION00034 seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Effect of DB Writes on Performance
Writes are slower than reads, but the real bottleneck is likely to be your application, not the ZODB. Commonly ZODB writes take place within a busy transaction, including catalog updates, transformations, etc. Brian R Brinegar wrote: Hello, What effect do ZODB Writes have on Performance? We use Zope in an environment where users are constantly updating and maintaining content within the ZODB. Do these writes to the Database slow down overall performance? ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Can't return / publish object of a dictionary?
Sounds like an acquisition problem to me. Are the objects wrapped? Try def _getOb(..): ... return someobject.__of__(self) Lars Heber wrote: Hi zopers, my class has a list with several objects in it. When calling my self written _getOb() method, I want to return one of these objects. But I get an Unauthorized... When I put an object of the same type into a normal class attribute (self.dummyObject), return of that object from _getOb() works perfectly. What am I doing wrong? Thanks a lot! ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Re: AdaptableStorage
Shane Hathaway wrote: Chris Withers wrote: Shane Hathaway wrote: performance. There needs to be a way for applications that modify the database to tell Zope about the modification, so Zope can reset its caches. But, IIRC, the last time this was discussed on a mailing list you had some cool ideas to sovle the problem, right? Yes, but I want to hear other people's ideas first. What do you think? Isn't this a different problem for each kind of storage, e.g. MD5 hash for ext2, transaction ID for foo...? Or are you referring to a different aspect of the problem? While reading the referenced thread on the subject, I found your description of the product design here: http://lists.zope.org/pipermail/zope-dev/2002-August/016981.html Could this go in the docs/ directory of the product? The design, while very clean, doesn't lend itself to immediate understanding on a cursory view of the source... seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] AdaptableStorage
Shane, AdaptableStorage is insane and beautiful - congratulations :-) It could fit a possible project we have coming up where a requirement is to store content in an XML format inside MS SQL Server. Do you have a TODO list? Are there any particularly alpha parts? I would need to get an idea of the risk I was taking on, but if the list is sufficiently small, I love to help mature and extend the product. Seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] KeywordIndex errors
2002-11-27T16:16:26 ERROR(200) KeywordIndex unindex_object could not remove documentId -869933785 from index companies. This should not happen. exceptions.KeyError: -869933785 This usually happens when there are duplicates in the indexed keywords and the record isn't updated before unindexing. Shouldn't cause any problems, though it isn't nice. This can be easily fixed by changing the KeywordIndex' index_object method to make keywords unique before indexing. Hmm, recall that PathIndex error I reported a few days ago? That was also an unindex error, also exercised by migrating to 2.6.0. I wonder why the process of *migrating* should cause dups in the index...? seb Hi, started seeing quite a few of these showing up in one of our server's logs: -- 2002-11-27T16:16:26 ERROR(200) KeywordIndex unindex_object could not remove documentId -869933785 from index companies. This should not happen. exceptions.KeyError: -869933785 This is Zope 2.6.0, hence the total lack of traceback :-( Anyone got any idea what's going on here? cheers, Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] Bugfix release?
The DateTime bug in 2.6.0 breaks all of my sites. This must be true for very many other people. If we collectively want use of Zope to multiply 10x, I don't think it's a great idea to let a major bug like that stay in the latest-and-greatest release. Can we have a bugfix release? seb - This mail sent through IMP: http://horde.org/imp/ ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] PathIndex unindex fix
Anyone object to me changing PathIndex so it swallows exceptions and logs them when unindexing content? On upgrading to Zope 2.6 some if the unindex paths seem to have got hosed, and I don't want this breaking my site. ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] PathIndex unindex fix
I've already fixed it; should I commit it or do you want the patches? Andreas Jung wrote: Please file a collector issue and assign it to me. -aj --On Donnerstag, 21. November 2002 13:24 + seb bacon [EMAIL PROTECTED] wrote: Anyone object to me changing PathIndex so it swallows exceptions and logs them when unindexing content? On upgrading to Zope 2.6 some if the unindex paths seem to have got hosed, and I don't want this breaking my site. ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 ) - -Andreas Jung http://www.andreas-jung.com - - EMail: andreas at andreas-jung.com - -Life is too short to (re)write parsers - - -- [] j a m k i t seb bacon T: 020 7549 0520 F: 020 7490 1152 M: 07968 301 336 W: www.jamkit.com ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] IIS / login bug
There is a bug in IIS[1] which causes cookies to be dropped during a
redirect. The result in the CMF is that a login fails when it is
combined with a redirect, as happens following an attempted access of a
forbidden resource when using the CookieCrumbler.
Now, I'm not too familiar with the pcgi mechanism, or IIS, and not
having my own Windows development machine makes debugging a bit
problematic. So I'd appreciate advice from IIS / pcgi savants (there
must be some, somewhere ;-)
M$ says the workaround is to rename the zope.pcgi script to
nhp-zope.pcgi, which indicates to IIS that it should pass on all HTTP
headers untouched. The problem here is that the ZPublisher defers to
the server to produce some of the relevant HTTP headers, namely the
protocol version / status header ('HTTP/1.1 200 OK'). Without this
header, browsers display all the headers as if they are part of the body.
My solution is to alter the pcgi_publisher.py script so that it passes
the publish_module a ZServerHTTPResponse object - which *will* add all
the relevant server headers [2].
However, altering the pcgi_publisher script seems to have no effect,
whatsoever, on anything.
Should my approach work? Are there better workarounds?
Thanks,
seb
--
References
[1] http://support.microsoft.com/default.aspx?scid=kb;EN-US;q176113
[2] pcgi_publisher.py patch (watch for line wraps)
*** pcgi_publisher.py Thu Sep 7 17:40:07 2000
--- nhp-pcgi_publisher.py Thu Jul 11 09:56:42 2002
***
*** 294,306
### IIS hack to fix broken PATH_INFO
### taken from Mike Fletcher's win_cgi_module_publisher
import string
if env.has_key('SERVER_SOFTWARE') and
string.find(env['SERVER_SOFTWARE'],'Microsoft-IIS') != -1:
script =
filter(None,string.split(string.strip(env['SCRIPT_NAME']),'/'))
path =
filter(None,string.split(string.strip(env['PATH_INFO']),'/'))
env['PATH_INFO'] = string.join(path[len(script):],'/')
!
try:
!
self.publish_module(self.moduleName,stdin=stdin,stdout=stdout,stderr=stderr,environ=env)
except:
self.fatalError(unable to publish module)
--- 294,308
### IIS hack to fix broken PATH_INFO
### taken from Mike Fletcher's win_cgi_module_publisher
import string
+ from ZServer.HTTPResponse import ZServerHTTPResponse
+ iis-nhp-response = None
if env.has_key('SERVER_SOFTWARE') and
string.find(env['SERVER_SOFTWARE'],'Microsoft-IIS') != -1:
script =
filter(None,string.split(string.strip(env['SCRIPT_NAME']),'/'))
path =
filter(None,string.split(string.strip(env['PATH_INFO']),'/'))
env['PATH_INFO'] = string.join(path[len(script):],'/')
! iis-nhp-response = ZServerHTTPResponse(stdout=stdout,
stderr=stderr)
try:
!
self.publish_module(self.moduleName,stdin=stdin,stdout=stdout,stderr=stderr,environ=env,response=iis-nhp-response)
except:
self.fatalError(unable to publish module)
___
Zope-Dev maillist - [EMAIL PROTECTED]
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 )
Re: [Zope-dev] vulnerability in stock Zope
Shane Hathaway wrote: seb bacon wrote: Production sites running a stock Zope are vulnerable to abuse of their server if they have not removed the 'Examples' folder. For example, anyone could use http://notcarefulenough.com/Examples/FileLibrary as a warez repository. Are you sure? I get an Unauthorized error (but not until I actually try to upload). Shane I'm sure, I've tried it on a few sites. Try this ;-) http://new.zope.org/Examples/FileLibrary seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] vulnerability in stock Zope
Production sites running a stock Zope are vulnerable to abuse of their server if they have not removed the 'Examples' folder. For example, anyone could use http://notcarefulenough.com/Examples/FileLibrary as a warez repository. Are you sure? I get an Unauthorized error (but not until I actually try to upload). Shane I'm sure, I've tried it on a few sites. Wait a minute, now I see it. The addFile script has the Manager proxy role! (And apparently my Zope is disregarding the proxy roles.) That's wrong. I suggest we remove the proxy roles, replacing the proxy role explanation with the text you can set proxy roles if you want anonymous users to be able to use this script. Don't forget the Message Board application too. Are you fixing this or shall I? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] Bad Marshal Data
I've asked this before, about a year ago, but got no response. Does anyone else ever see 'bad marshal data' errors sometimes? What are they a symptom of? It sometimes happens in my products, other times in Zope. It always occurs on import statements. I usually manage to fix it by playing around with line spacing, etc, in the module being imported. Deleting *pyc files does not help. Here's an example: Traceback (most recent call last): File /usr/local/Zope-2.5.1b1-src/lib/python/OFS/Application.py, line 531, in import_product product=__import__(pname, global_dict, global_dict, silly) ValueError: bad marshal data seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] manage frame change
On Mon, 2002-03-18 at 19:18, Leonardo Rochael Almeida wrote: On Mon, 2002-03-18 at 13:21, Lennart Regebro wrote: The machine should, in my opinion, be the domain you are logged in on. I.e, if you are authenticated for domain www.foobar.com:1001, thats what it should say, according to an internal survey here at Torped (that means me and Johan). :-) It would be nice to have it configurable, but I'm not sure it's enough to configure it per instance. You may want to configure it per virtual domain too. +1 on that. It's 'The Simplest Thing That Could Possibly Work' (TM) and only requires changes to the template as all the extra data (host and port) is present in the request. But we come back to the point that you may be logged into one of (say) 3 app servers (ZEO clients) all serving the same domain, no? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] manage frame change
anyone object to changing the text at in the top ZMI frame to Logged in as user on machine? Or is there a better place to put that info? I find it useful when I've got several windows open to different servers. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
(OT) Re: [Zope-dev] Zope 2.6 planning - call for contributors!
On Mon, 2002-03-04 at 03:55, Anthony Baxter wrote: I think the performance hit is really quite minimal for two if statements at the entry and exit point(s) of a function to turn the behaviour on and off. I'm not convinced. Those small increments of performance really add up. Look at how Python's performance over time has degraded as one after another small bits of cruft accumulated. ?!?! :-) $ python1.5 pystone.py Pystone(1.1) time for 1 passes = 0.84 This machine benchmarks at 11904.8 pystones/second $ python2.1 pystone.py Pystone(1.1) time for 1 passes = 0.77 This machine benchmarks at 12987 pystones/second $ python2.2 pystone.py Pystone(1.1) time for 1 passes = 0.68 This machine benchmarks at 14705.9 pystones/second seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Zope 2.6 planning - call for contributors!
On Mon, 2002-03-04 at 03:47, Richard Jones wrote: On Mon, 4 Mar 2002 14:40, Casey Duncan wrote: I agree, monkey patches are perfect for this. That makes them totally transparent to the application and Zope for that matter. There's nothing wrong with them in the right application. My main concern is the use of monkeypatching in the core makes it difficult for someone else to release a product that also MPs without them worrying about whether something has already patched code. Especially when we're talking about MP'ing so many core Zope objects (yes, I count 1 as so many :) I agree - altering classes at runtime is less predictable or discoverable than defining them statically. I think the current solution is really nice, but I don't see that it has any particular benefits over a static implementation, which has the benefit of following a standard, well-known pattern. I think the performance hit is really quite minimal for two if statements at the entry and exit point(s) of a function to turn the behaviour on and off. Yes - I would bet the performace difference is in the order of hundredths of a second. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Zope 2.6 planning - call for contributors!
On Mon, 2002-03-04 at 10:47, Chris Withers wrote: seb bacon wrote: Yes - I would bet the performace difference is in the order of hundredths of a second. Which I would prefer not to have added to the several hundred other hundredths-of-a-second little differences-that-people-thought-wouldn't-make-a-difference that have been added to Zope over time... What, like ZPT? ;-P http://zope.nipltd.com/public/lists/dev-archive.nsf/ByKey/4084B02199CC6AFB (to save the bother of following the link, that's the thread from about a month ago regarding evidence suggesting ZPT may be *twice* as slow as DTML) seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] MonkeyPatching in the Core (was: Zope 2.6 planning)
On Mon, 2002-03-04 at 11:23, Chris Withers wrote: seb bacon wrote: http://zope.nipltd.com/public/lists/dev-archive.nsf/ByKey/4084B02199CC6AFB (to save the bother of following the link, that's the thread from about a month ago regarding evidence suggesting ZPT may be *twice* as slow as DTML) Yup. And I'm a pretty strong advocate that ZPT should be speeded up a lot. Indeed. However, I was being a bit glib with my example, and didn't explain my point properly: that performance issues should be subordinate to good design. Therefore, I suspect MonkeyPatching is bad: Pros - a tiny performance gain Cons - unpredictable interaction with future products; not a well-known method of distributing products; not easily discoverable But perhaps my 'cons' are misplaced? Mostly, I'm uneasy that someone looking at ZPublisher code would have no way of knowing that CallProfiler hooks into it if it were monkeypatched. seb seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] MonkeyPatching in the Core (was: Zope 2.6 planning)
What if, instead of the static list of callable info that the CP currently uses, Zope objects could register themselves as profilable? We would then make sure that the object types that CP handles now register themselves, but other products that we don't know (or have to know) about could register themselves too if they wanted. Think of this as consentual monkey-patching (hmm... may have to change this metaphor soon!). The products have to take some explicit action to be profilable, so it is not invisible in the code of the product. The hooks will continue to installed as-needed, so there is no performance issue. Thoughts? Bingo! seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Zope 2.6 planning - call for contributors!
Absolutely ... and I would also like to see Richards excellent Call Profiler service become part of the core. I'm definitely putting the profiler into 2.6 - there's just an open question of where it gets put. The question was asked on zope-coders, and got no response. I figure if no-one answers within a week of my original posting, I'll just check it in as a product. Richard, FWIW, my own opinion is that it should not take the 'MonkeyPatch' approach. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Zope 2.6 planning - call for contributors!
I'd like to see the ZSyncer Product, or a variant thereof, included in Zope by default. That is, I'd like Synchronization, to a be a default property of Zope objects, so that objects/content can be pushed and pulled between two Zope installations. I would use ZCVSFolder or somewhat likely that included instead of ZSyncer. I think the use cases driving synchronisation requirements are not yet sufficiently understood. Agreed, it's a feature that many people need, but I get the impression it would be premature to include ZSyncer as is in Zope without more detailed planning. On the other hand, there is an argument which says, ZSyncer is a good product used by a lot of people, let's put it in Zope and deal with any issues after the event. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Re: Zope vs. Cocoon
A few points I'd like to add. Before I do, a disclaimer: I've never used Cocoon, and I really like Zope. Having said that, I've used lots of other 'competing' systems, and I am able to see Zope's weak points. Some don't think this 'cloning restriction' a severe limitation, I think this is not a annoyance, but the *first* rule. I agree that this is a very important consideration. However, I cannot agree with your observation. Zope powers many more sites than those of which you may be aware. Unfortunately, I don't know too many of them personally, but here are a few: http://www.activestate.com http://www.homegain.com http://www.arielpartners.com(I couldn't resist :-) ...here's some more from our side of the pond: http://www.breastcancercare.org.uk http://www.intellident.co.uk http://www.mulberry-insurance.co.uk http://www.jubilee.gov.uk http://www.drugs.gov.uk Boths are fruits, as both publish web content, but Zope is a 'publishing environment' while Cocoon is a 'publishing framework'. An 'environment' is an application that you customize, a 'framework' is the foundation of your own application. I disagree: Zope is very much a framework. I've used it for a CMS, for intranets, and for online data capture. I've created applications which automatically catalog and convert Word, PDF, and various image formats which have been emailed to a mailing list as attachments. There's bug trackers, wikis, slashdot-alikes, etc... What Zope lacks IMO is good best practice guidance and detailed developer documentation, though it's getting there now. Without best practice guidance, developers tend to choose the first development model they see, which at the moment tends towards heaps of quick-and-dirty through the web hacks and tricks. This does give the illusion of Zope being an 'environment' rather than a 'framework', and encourages Zopish-looking sites, too. I believe that Zope is mis-placed architecturally, it's an hybrid between a CMS and a publishing framework. And does some of everything, but both poorly, compared to specialized solutions. Actually, there is a CMS available for Zope: the Zope Content Management Framework (see http://cmf.zope.org). We chose not to use the Zope CMF because of its architecture: it is not based on standard XML technologies and, in our opinion, brings us too far into the proprietary language land. You don't have to be tied into one implementation if you're using the CMF - nothing about it is more proprietary than vanilla Zope. The default, out of the box Zope and CMF may give the impression of being a poor fit to most requirements. However, most people misunderstand that it is just an example implementation of a site built using the CMF. The actual possibilities are endless, and it's a robust and useful framework. 1) Integrated Object-oriented database with support for full graphical editing of all objects Do you really want this? I don't. Being able to create objects which persist transactionally in a database simply by mixing in a 'Persisent' class makes development very fast and simple. If you like programming in python, you should look into the ZODB a bit more - I think you'll like it, regardless of Zope. Then the Cocoon strong points: 1) Integration with Source Code Control System Zope is not file based, it's entirely database based. So CVS doesn't work on it. We have made our first baby steps toward solving this problem: http://www.zope.org/Members/arielpartners/CVSFile This is a very real concern. There are a number of ways of dealing with it. We use the FSObjects from the CMF. These are filesystem-based objects which are loaded into the database at run-time. However, we still have to use DB-only things occasionally. This is all set to change in Zope3. The plan is to have full, bidirectional mapping between the ZODB and the filesystem. 2) Integration with J2EE and other Java-based business logic Cocoon is a servlet, thus we get it for free. They find themselves completely detached from the rest of the world, even if they could easily use web-services to glue things. This is a clear marketing plus for us./listinfo/zope ) - If Zope could be made to run under Jython (http://www.jython.org), integration with J2EE would be virtually a no-brainer, b/c you are already inside a Java VM. This is also a goal for Zope3 (a Jython implementation), though I'm not sure when it'll land. Moreover, there is no indication of internal modularity and extensibility, SoC-based design, IoC design, data storage abstraction... and no indication on caching strategies, scalability and performance issues. You are right that there is *way* too much magick in Zope. That is the main motivator behind Zope3, which is entirely component-driven. Architecturally, it is *excellent*, and I'm very excited about it. I could wax on for hours, but I won't right now. Suffice to say everyone in the
Re: [Zope-dev] Zope builds (new Intel C++ compiler)
However, I do build Python with gcc 3.1 (cvs) and Python 2.1.2 and with various compile options can get a 17% speedup. Could you share the compile options with us? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Zope builds (new Intel C++ compiler)
On Tue, 2002-02-12 at 12:36, Matthew T. Kromer wrote: On Tuesday, February 12, 2002, at 07:17 AM, seb bacon wrote: However, I do build Python with gcc 3.1 (cvs) and Python 2.1.2 and with various compile options can get a 17% speedup. Could you share the compile options with us? seb Gcc 3.0X doesn't seem to be able to make a good build with these options; gcc 3.1 (from cvs) does, but YMMV -- don't blame me or ask me for help building python with fancy options, please. Your suggestions made my floppy drive run out of gcc, and now the interweb's crashed - and it's all YOUR fault ;-) Thanks - this will be very interesting. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Benchmarks: DTML vs. ZPT?
Hi! It wouldn't surprise me - ZPT has the roughly the same overheads as DTML for the language parsing, but a presentation template goes through an HTML parser in addition - which is always going to be quite slow in python. seb On Thu, 2002-02-07 at 00:01, Joachim Werner wrote: Hello! Has anyone done any performance comparisons between DTML and ZPT yet? The reason I'm asking is that we did some first(completely unscientific) tests and had the impression that ZPT were actually quite a bit SLOWER than DTML - and I just can't believe that ... Joachim ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Adding gzip compression to HTTPResponse.py
I don't have much useful to add - I just wanted to mention that I know
there are people out there who have succesfully used mod_gzip with Zope;
and that I *like* the name dogzip :-)
seb
On Tue, 2002-02-05 at 22:34, Brad Clements wrote:
I'm looking for architectural suggestions for adding gzip compression to
HTTPResponse for text types.
First, I just wanted to compress xml-rpc output, since I'm returing lots of table
data as
XML text (not objects), then loading that text/xml into a DOM for XSLT processing.
I hacked the attached code into HTTPResponse, at the end of setBody. It works for
xml-rpc responses and I suppose any text output, so long as the response object has
a
header named dogzip set.
I know dogzip is a stupid name, but this is just a testing thing.
Representative compressions:
compress oldlen 150366 new len 11926
compress oldlen 204382 new len 14170
compress oldlen 12746 new len 1364
As you can see, very useful compressions for xml-rpc output.
But for HTML output, what's really needed is I think a special kind of Cache Object.
One that combines HTTP Caching with Ram caching to keep gzip compressed objects
in memory.
Some HTML pages are really quite large, and gzip compression can make a noticable
difference. Just the javascript code sizes themselves are .. really big.
For xml-rpc, obviously every response must be compressed if it's worth it, and I
can
see that having to set a response property on a per request basis is appropriate for
xml-rpc.
But for text file objects, Page Templates and stuff.. How does setBody work with Ram
Cache objects? I have some ideas...
Anyone think this is worthwhile?
Also, RESPONSE.setBody really should have access to REQUEST.headers. What's
the clean way to do that? Just pass the request object to response object's init
method?
Here's quick gzip compression hack-in, based on code posted by Neil Schemenauer
Thanks Neil.
Added about line 265 in HTTPResponse.py in Zope 2.5 B3
try:
dogzip = self.headers['dogzip']
del self.headers['dogzip']
if dogzip and split(content_type,'/')[0] == 'text':
body = self.body
startlen = len(body)
import zlib, struct
_gzip_header = (\037\213 # magic
\010 # compression method
\000 # flags
\000\000\000\000 # time
\002
\377)
co = zlib.compressobj(6,zlib.DEFLATED,-zlib.MAX_WBITS,
zlib.DEF_MEM_LEVEL,0)
chunks = [_gzip_header, co.compress(body),
co.flush(),struct.pack(ll,zlib.crc32(body),startlen)]
z = join(chunks,)
newlen = len(z)
print compress oldlen ,startlen,new len,newlen
if newlen startlen:
self.body = z
self.setHeader('content-length', newlen)
self.setHeader('content-encoding','gzip')
except:
pass
Brad Clements,[EMAIL PROTECTED] (315)268-1000
http://www.murkworks.com (315)268-9812 Fax
netmeeting: ils://ils.murkworks.com AOL-IM: BKClements
___
Zope-Dev maillist - [EMAIL PROTECTED]
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 - [EMAIL PROTECTED]
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 )
Re: [Zope-dev] Call Profiler
I've just announced our Call Profiler product on zope.org and the zope announce list (waiting for people in different timezones to authorise them :) ( http://www.zope.org/Members/richard/CallProfiler/ for the impatient) This is absolutely excellent, well done and thanks :) I added various FSObjects to the profiled modules list and have been looking at my CMF systems - it's really instructive. It does pose a question though: would it be better to have support for this stuff in the core, or is it OK for a product like this to dynamically patch the call methods when it needs to? I see nothing wrong with it being a monkeypatch product. On the other hand, it is a very useful tool, and as such could benefit from being in the core simply so that it always gets maintained with the core. On one hand, the performance hit when dynamically patching the methods is zero when the product is not active, but it does mean diddling with methods that really probably should be left alone. On the other hand, having changes to the core code to test for profiling being enabled introduces a small performance hit even when profiling is not activated. You could do this check only if zope is being run in debug mode; then there would be zero perormance hit in production sites. Any comments? I think the reporting could do with some usability improvements. It's good now, but takes a while to navigate round. - All the reports could benefit from being sortable by column. - the trace for a complete template could be slightly clearer. The colour coding for the start and end of a module could have a clear legend, for example. - there needs to be some solution for really long URLs, which require lots of horizontal scrolling - just displaying the final parts of the path, with the rest of the url hidden somehow? I can't think of exactly what else I would do to improve it right now, though. And that's the kind of change I never get round to bothering with, personally... Sorry these aren't really constructive ideas, but you did ask for feedback :-) seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] CMF 1.2 - Can I convert Files to PortalFiles
You can use FTP to upload the files - check out which port your Zope FTP server is running on and have a look there. Investigate the content_type_registry to see how to link certain file types to particular CMF types. Sorry for the brevity of the mail, but hopefully that points you in the right direction. seb On Wed, 2002-01-30 at 17:58, [EMAIL PROTECTED] wrote: I have a number (100plus - not too many but enough) of objects of type File in my zope that aren't visible under CMF 1.2. Is there any easy way to convert these into objects of type PortalFile without having to upload all of the content again. I have tried importing them, but the CMF site catalog is not updated automatically. I understand that I might have to add in the new metadata. I just want a way to avoid the uploads. I'm not a python programmer, so please don't tell me that I could write a script in a minute, but you could send me the script. John Knutson Candle Corp England ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 - [EMAIL PROTECTED] 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] Calling every zoper, newbies to gurus
First, apologies for the cross posting. I need to make sure this gets to as many people as possible, for obvious reasons... Everyone's got grumbles about how zope.org is organised. Now is the time to quit grumbling and do something about it. If you are a newbie or a guru, please take the time to respond to this email! I'm currently in the process of defining requirements for improving the zope.org website. The first part of this process is listening to the key constituencies for the site. Please note, I'm *not* planning on making a new products rating system, or a replacement for the fishbowl: I'm interested in the graphical design and informational content of the site. The questions are intended to help me understand who is using zope.org, how they use it, and what they would like it to be. If you don't want to answer all the questions, that's fine - just one answer is better than none. Reply to this email privately. I won't divulge any of the information to anyone else for any reasons, and the information will only be used to help improve the zope.org website. I will write up a report once I've received enough input, and publish the results online. Thanks for taking the time to help improve the web site... seb -=-=-=-=-=- 1) How did you hear about Zope? 2) Before you used Zope, what were you expecting? 3) How did the zope.org website change this? Did it confirm, exceed or undermine your expectations? 4) Are you: (a) just trying to find out about this zope thing (b) a zope newbie (c) a zoper of moderate ability (d) a zoper of distinction (e) a guru 5) How would you describe your role in your organisation? The following list is for guidance only - try to describe what you do in your own words. (a) developer (b) technology decision maker (c) business decision maker (d) technical architect / technical lead (e) content developer (f) content manager (g) just a hobby 6) (developers only) Give an estimate of your skill level (none, low, medium or high) for the following: (i) Client side development - HTML - Javascript - XML (ii) Server side development - ASP - PHP - ColdFusion - JSP - perl - SQL (iii) Server admin skills - Apache - IIS - mySQL - shell - postgres - oracle - ms sql server 7) Have you ever used the following products? - broadvision - vignette - interwoven - spectra - midguard - phpnuke - cocoon - mediasurface 8) Which of the technologies mentioned in questions 6 and 7 do you see as closest to Zope? (You can name more than one) 9) What is your preferred operating system? 10) If you could make one piece of information easier to find on zope.org, what would it be? 11) Graphically, what would you expect from a site like zope.org? Give examples from other sites, if possible. 12) Give 3 adjectives which describe the current zope.org website 13) Give 3 adjectives which describe how you'd like it to be 14) How often do you visit the zope.org website? 15) Which part of the current site do *you* find the most useful? 16) Give the current zope.org website a score between 1 and 10 (1=completely useless; 3=pretty bad 5=just about usable 7=pretty good 10=my favourite site) 17) Would you be happy for me to contact you again for more detail (I'm thinking of further emails or IRC sessions)? 18) Any other comments? ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] Session Tracking in 2.5
I thought it was time to catch up on the CST stuff which has made it into the core, only to find that it's only *based on* Chris' CST stuff. And I can't find a fishbowl project anywhere describing the rationale, apis, whatever... Is there a fishbowl for this? Or was session tracking implemented as a guerilla project? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Session Tracking in 2.5
On Tue, 2002-01-08 at 13:03, Chris McDonough wrote: There are supposed to be docs for the sessioning stuff, and there *are* API docs in the help system. However, the narrative docs that went along with CST were not translated for the Zope 2.5 stuff. The docs folks here dont seem to think its important, so I may need to do this and put it in the Dev Guide. It's important because session tracking is such a crucial feature for people migrating from other web platforms - seeing detailed documentation will make them so much more comfortable. it would also be a crying shame not to make use of all the docs you already generated along the way. So, please do try to find the time, and show my plea to those who make room for doing such things :-) seb On 08 Jan 2002 11:39:35 + seb bacon [EMAIL PROTECTED] wrote: I thought it was time to catch up on the CST stuff which has made it into the core, only to find that it's only *based on* Chris' CST stuff. And I can't find a fishbowl project anywhere describing the rationale, apis, whatever... Is there a fishbowl for this? Or was session tracking implemented as a guerilla project? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Merhabalar;
ROTFLMAO :-) On Wed, 2001-12-12 at 22:44, Lennart Regebro wrote: From: Can Canbilek [EMAIL PROTECTED] Öncelikle rahatsýz ediyorsak özür dileriz ama bu maili okursanýz sanýrým bize teþekkür edeceksiniz. Sizlere, hiçbir masraf yapmadan yalnýzca internete girerek para kazanacaðýnýzý iddia ediyoruz. Oh, yeah? Well you aint that pretty yourself! Hiçbir yalan dolan, hile olmadan Keep my mother out of this!! :-) ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Zope and Curl
There was some brief chatting about it a while ago on the list, do a search. seb On Sat, 2001-12-08 at 21:00, Dirk Datzert wrote: Hi, has any zoper played with the new internet technology curl from http://www.curl.com ? Regards, Dirk ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Re: core i18n support
On Fri, 2001-12-07 at 11:47, Paul Everitt wrote: In fact, we'd like to start a pattern of opening up the sprints to outsiders. We'd like to invite folks to Fburg for a sprint. Though you'll pay your own freight, we'll supply a spacious cubicle. :^) If you're interested, contact me. Third, we'd like to host an open house on the Thur and Fri after IPC10. Besides an open house, we'd like to have perhaps a massive sprint. [ sorry for x-posting, I wanted a eurozope perspective on this ] An exciting invitation, but ultimately frustrating for those of us in a different timezone. A lot of the active Zope community is in Europe, and a lot of us are members of very small businesses or academia (I think). At a minimum, coming to Fredericksburg would cost about $700 (travel and accomodation and food). If I wanted to visit IPC10 too, it would be between $1000 and £1700. Would other members of the EZ business / academic community be willing to stump up this money? I'd be interested to know. I don't think *we* could justify it at this stage in our business development - we already use a lot of resources on zope rd, and community support. IMO, the economic reality of this community and its resources (on this side of the pond, at least) means it will stay vapour. ZC is the biggest fish, and the only times we in Europe will see you folks is when you come over here. When are you going to open a London office? ;-) Or perhaps we could consider distributed xp (using irc, kibitz, etc...?) Thanks for the invitation, though :) OT: big OSS conferences seem unfairly priced against the small fishes who make up a lot of the OSS community. Or am I being naive? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Open Letter to zope-dev
* Lennart Regebro [EMAIL PROTECTED] [011130 11:24]: From: Andrew Kenneth Milton [EMAIL PROTECTED] Noone from Zope Corp seems to monitor the list to help out. That is not my experience at all. I have received answers from Zope corps several times. But sure, most of the answers you get come from the community members. Thats what a community is all about, and thats the hallmark of a good community. I agree. The best community I have seen is for the Clavia Nord Modular synthesizer. Clavia contributes abolsutely NOTHING to that community. They do, however, listen to it, and implement several of the features that are most requested in that community. And that is not an open source project, so the community can't contribute anything else than ideas. Personally, I think ZC are trying very hard, but are not getting it right. I'm also very sure they are taking this conversation seriously. Brian responded very quickly to the userfolder 'api' issues. They commit a *lot* in terms of software and support (IMO) but little in terms of fostering a community. But then, why should *they* be responsible for this? If we think we're a community, then we should all be responsible for building on it. I think we should have a conversation about what makes a community work, and then come up with some positive suggestions about improving the community *ourselves*. ZC will follow, for sure. There must be members of various OSS communities knocking around here. Python, XML things, Apache Foundation, GNOME. What are peoples' experiences? Which are the best? Why? I'm not sure about the ideal community, but here's some practical ideas to start off with. 1) Just because no-one can ever agree about splitting up the mailing lists, what's to stop somebody setting one up unilaterally? Perhaps the people who care strongly about this should just set up an egroup? I'm sure ZC would link to it from zope.org. Come on somebody, set up a forum at [EMAIL PROTECTED], today, right now, and continue the discussion there. 2) How about the responsiveness of ZC? Granted, it could be much better, but they're *trying*. Let's help them with suggestions. Look at the fishbowl. It's an open process, but doesn't get contributed to that much. What are the problems with it? How can we improve it? I think it should be linked from zope.org more prominently, for a start. I think the wiki format puts people off because they're not familiar with it. How about a familiar-looking discussion board on each proposal, too? 3) Another thing mentioned regularly: the zope.org community site is pretty bad. I think, just as the respository is beginning to open up, so should construction of zope.org. There should be a mailing list, some members of the community should be appointed to some kind of committee, and ZC should always have some representation on it. But it should be led by the people for whom it exists in the first place, IMO. Collectively, we have a vast array of talented designers, programmers, information architects, etc, at our disposal. Will ZC countenance this proposal? If not, should we be working on our own community site? These may be crap ideas, I don't know; but I think we *can* do something about these issues, collectively. We shouldn't just ask ZC to do something about it. Carpe diem and all that. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Zope has been Hijacked! Save Zope!
found, the harshness of the expression of that opinion is directly related to the way that these days Zope Corp seems to be an Ivory Tower and the way they seem to treat the community at large. There are approximately 450 products released by just over 200 people on Zope.org. There are approximately 1000 'entities' subscribed to this list (more to the main list), I represent 0.1% of this community, but, am responsible (but, not soley) for 3% of the total product space available. If people want to form an opinion of me based on one email, that's your right. You don't have the right to tell me, that *I* don't have the right to say the things I'm saying. I have earned the right to make these comments, I have contributed time, effort, and code, and I put my money where my mouth is. I'm not some backseat political observer, I am in the trenches I deal with the disaffected, the confused, and the generally pissed off every day. In my efforts, I try to help to make Zope a better product. You would be hard pressed to find a more stalwart supporter of Zope than me. This doesn't mean that I have to think that everything that leaves the holy temple of Zope Corp is the panacea of web development. My opinions might be wrong, but, they're not wrong simply because something was released by Zope Corp, or written by some person you have attached some god like status to. I will continue to do my thing, but, the way Zope Corp deals with us, the little fish had better change, or there's not going to be much of a community left. Those of you who subscribe to zope-dev who think that your time is too valuable to be spent helping others, well, words fail me. -- Totally Holistic Enterprises Internet| | Andrew Milton The Internet (Aust) Pty Ltd | | ACN: 082 081 472 ABN: 83 082 081 472 | M:+61 416 022 411 | Carpe Daemon PO Box 837 Indooroopilly QLD 4068 |[EMAIL PROTECTED]| ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 ) __ Do You Yahoo!? Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month. http://geocities.yahoo.com/ps/info1 ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 - [EMAIL PROTECTED] 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 ) -- [] j a m k i t seb bacon T: 020 7749 7218 F: 020 7739 8683 M: 07968 301 336 W: www.jamkit.com ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] (SHOUT) NOTIFICATION!!!!
+2 I like the idea of unifying the fishbowl and the collector. And I agree about notification. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] (SHOUT) NOTIFICATION!!!!
Paul Everitt wrote: This isn't a good track record. Brian produced 35 pages worth of almost-flawless docs on web services to go with his code. But no comments. And he's doing this on his own time. So let's remember that this is a two-way street. snip * Chris Withers [EMAIL PROTECTED] [011130 16:47]: list archives and the like...) and so never came back. Now, if I could have ticked a box saying email me when such and such happens then I, or other people here at NIP who are dealing with Web Services in a big way ,would have got involved as soon as appropriate... I think there's another problem here: possibly the community isn't large enough yet. There's already been a discussion on zope-coders about how little those with commit priviledges are actually committing, and the main reason is simply that no-one has enough time. How many people are there who are really comfortable with Zope to the point where they would be able to contribute meaningfully to a discussion about, for example, Web Services? Of the active community, I would guess fewer than 40. Of these, perhaps half missed the announcement. Of the others, probably another half were in the middle of very hectic projects. Of the 10 remaining, perhaps they weren't interested, or were going to look tomorrow but forgot... What we need, as Paul suggested about zope-web, is a set of community members who are able and willing to contribute 10 hours per week. I think there are very few such people. I would love to, but I simply can't. The best way of getting such people is to cast the community web wider, and draw more people in. The best way of doing this is make zope.org *really good*, I reckon. I for one will be pontificating on zope-web next week. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] FW: Zope optimistic transactions.
Dude, it's not a bug. You're *meant* to get a ConflictError exception
when writes conflict. That signals the publisher to retry.
Search on zope.org for conflict resolution.
Regards,
seb
* Clark O'Brien [EMAIL PROTECTED] [011130 18:05]:
That was not the point dude. Your cowardly call for a
response from the intellectual prostitutes on this
list leaves me uninterested in anything you may have
to say.
Over and Out
Clark
--- Chris McDonough [EMAIL PROTECTED] wrote:
There won't be any more discussion about this issue
from me.
- C
- Original Message -
From: Clark OBrien
[EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, November 30, 2001 12:48 PM
Subject: [Zope-dev] FW: Zope optimistic
transactions.
-Original Message-
From: Clark OBrien
Sent: Monday, November 05, 2001 7:14 AM
To: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]'
Cc: '[EMAIL PROTECTED]'
Subject: Zope optimistic transactions.
Chris,
I set up a test harness to exercise zopes
optimistic transaction
management.
My test immediatly caused a ZODB exception.
I am running zope 2.42. on win 2k, the scripts
are attached.
Results below:
As you recall I posed the following question:
What if you had a directory structure like:
Folder1
Folder-2
Folder-3
...
..
Folder-n
Each folder had an attribute foo and there were
two scripts,
script1 and
script2.
script1 modified foo on one Folder only while
script2 traversed
all the
folders modifying the attribute foo on each one
of them.
Would the script2 ever commit while the fist
while script1 was
continuously called. This is interesting because
a call to
script2 would
never finish before several calls to script1
finished.
I set up a simple test with only 10 folders. I
then wrote the
script below
changeLevel2 that is my scri1 above and
changeFolders that is my
script2
above.
I ran changeLevel2 in a loop using the following
code:
script--
--
---
import urllib
params = urllib.urlencode({'theText': 'Vitamin
D'})
while 1:
f =
urllib.urlopen(http://localhost:8080/Test/changeLevel2?%s;
%
params)
print f.read()
-script-
--
-
I then ran the script changeFolders from my
browsers.
The result was the following error message:
ZODB.POSException.ConflictError
Sorry, a site error occurred.
Traceback (innermost last):
File C:zopelibpythonZPublisherPublish.py,
line 223, in
publish_module
File C:zopelibpythonZPublisherPublish.py,
line 200, in
publish
File C:zopelibpythonZPublisherPublish.py,
line 200, in
publish
File C:zopelibpythonZPublisherPublish.py,
line 200, in
publish
File C:zopelibpythonZPublisherPublish.py,
line 195, in
publish
--
scripts.txt
___
Zope-Dev maillist - [EMAIL PROTECTED]
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 )
__
Do You Yahoo!?
Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month.
http://geocities.yahoo.com/ps/info1
___
Zope-Dev maillist - [EMAIL PROTECTED]
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 )
--
[] j a m k i t
seb bacon
T: 020 7749 7218
F: 020 7739 8683
M: 07968 301 336
W: www.jamkit.com
___
Zope-Dev maillist - [EMAIL PROTECTED]
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 )
Re: [Zope-dev] FW: Zope optimistic transactions.
He he, Another classic Withers-style measured response ;-) Easy on those flames, dude...Everyone move along now, there's nothing to see here... seb * Chris Withers [EMAIL PROTECTED] [011130 18:19]: Clark O'Brien wrote: That was not the point dude. Your cowardly call for a response from the intellectual prostitutes on this list leaves me uninterested in anything you may have to say. Excuse me, what the FUCK is your problem 'dude'? You obviously have no fucking clue. Kindly piss off and grow up. That's about the sum total of anything useful I can say in response to your postings so far... Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 ) -- [] j a m k i t seb bacon T: 020 7749 7218 F: 020 7739 8683 M: 07968 301 336 W: www.jamkit.com ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] bug reporting idea
Your points are valid, but I think I maybe didn't explain myself well enough. I was just thinking of it happening in debug mode, not on a live server. So many people may find bugs but don't know about the collector. Even just a link to the collector would encourage more people to report bugs. There would be a greater volume of false positives, but this is a bug management issue, not a reason to discourage bug reports. IMO we should be aiming at a very stable, bug free system, and for that we need lots of eyeballs. All this thinking just came from the observation that real bugs often don't get reported because someone doesn't know about the collector, or even how to report bugs well. seb - Original Message - From: Chris Withers [EMAIL PROTECTED] To: seb bacon [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Sunday, November 11, 2001 11:14 AM Subject: Re: [Zope-dev] bug reporting idea seb bacon wrote: What do people think about a semi-automatic bug reporting system, like the gnome bug buddy? Gotta be a big -1 from me I'm afraid. There's a few issues: - huge ammounts of false reports. Imagine someone who sticks up their first Zope site has a slight bug. Everyone who visits it sees the warning and 'does their duty' by reporting the bug. - irritation factor for site users - I go to special efforts to kill off Netscape's thing when I'm using Mozilla 'cos it just adds more time to recovering from a Mozilla crash/hang/etc. With a website, people might well walk away :-( however, this last one is the killer for me: - security. As someone who runs Zope servers, I don't want _anything_ automatically dumping potentially senesitive information out of my server. And yes, I am one of those people who sometimes 'cleans' tracebacks before posting them here or in the collecto ;-) cheers, Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] random regex
I'm finding that the regex which deals with links in structured text is broken (Zope 2.4.1, Python 2.1). If you try a link with a query string: link:http://www.foo.com?ding=dongbit=bat the part of the regex which is matching the url only matches up to the first '=' (or ''). If I run the expression against a string in the python interpreter, the correct match is returned. The problem only occurs in lib/python/StructuredText/DocumentClass.py. After a lot of playing around with the expression, I found I could only get it to match correctly *by running it against the same string three times in a row*. Can anyone else reproduce this problem? Has anyone any suggestions as to what might be causing it? Perhaps it's some kind of boundary condition in the re module? I don't really have the time to pursue it much further, so it looks like I'll have to settle with a Tracker entry and a nasty hack. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Vulnerability in Zope
* Andy McKay [EMAIL PROTECTED] [010924 01:11]: Haven't we been complaining about this automatic appending of tracebacks for a while? To me this is what log files are for but Im not sure what this guy is on. I wouldnt count this as a security vulnerability. It's not an exploitable vulnerability (which is the only sort of vulnerability in my book ;) but it's as ugly as a warthog, and it would be nice to arrange things more gracefully. seb - Original Message - From: Chris Withers [EMAIL PROTECTED] To: Paul Everitt [EMAIL PROTECTED]; ALife [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Sunday, September 23, 2001 10:44 AM Subject: Re: [Zope-dev] Vulnerability in Zope Do others consider this a vulnerability? Yup... especially given the hard-coded (sigh) error page returned for authentication error gives out this information :-( Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Traversal Barf
snip stuff about SERVER_URL KeyError * Casey Duncan [EMAIL PROTECTED] [010711 16:22]: I haven't the time time to pursue this right now, but I'll attempt to make a simple, reproduceable example and submit it to the Tracker. But just in case I get time to debug it, where might I start? I'm not very familiar with the Traversal / Publishing stuff. I'm happy to help if I can. Thanks for the offer. I'll need to take time to assemble something that isn't our entire framework for you to have a look at. Hopefully by the end of the week... cheers, seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Traversal Barf
* Steve Alexander [EMAIL PROTECTED] [010711 07:59]: KeyError: SERVER_URL I have seen a similar traceback which was due to a bug in CopyPaste.py, to which I have submitted a patch. It had to do with a lack of an acquisition wrapper at an inopportune time. It looks as though absolute_url() is being called without a proper wrapper around the object it is begin called for. Looks to me like absolute_url() is being called when absolute_url(1) should be used. I didn't know about the absolute_url(relative=1) switch. Do virtually hosted envirnoments not have a SERVER_URL variable? However, I don't think this is the problem. (1) I'm not in a virtual hosting scenario (2) it happens at fairly random intervals *on the same page*. I can be working on a page, then reload it, and I get the KeyError. Then I can reload it again and the error goes. Then I go back to it, reload it again, and the error appears. Reload it again and the error remains. Reload it again and it disappears again... You get the idea. This makes it very difficult to debug. I left my computer on overnight, without changing any app settings, and haven't seen the error yet today. My feeling is that Casey's right. It's happening on a CMF object to which I've added BeforeTraverse hooks, which could possibly have something to do with it. However, I've actually seen this problem before, about a year ago, with a completely unrelated ZClass-based objects. I remember then noticing that the error occured more often with Netscape and Opera than IE. Of course, that theory is utter nonsense seeing as HTTP is a connectionless protocol and the headers each browser sends are effectively the same. However, in the absence of a reproduceable error, I have to clutch at straws ;-) seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] Traversal Barf
I've been getting a puzzling error. It's not reliably reproduceable. It occurs perhaps one time in four when I'm using Opera. At first, it appeared only to be related to Opera, but now I'm getting the same error in netscape. I can just hit refresh and it works again. There's no sign of anything like ConflictErrors or the like on the console. Has anyone seen this before? What could it be? snip File /usr/local/Zope/lib/python/DocumentTemplate/DT_Let.py, line 146, in render (Object: rootpath=absolute_url()) File /usr/local/Zope/lib/python/DocumentTemplate/DT_Util.py, line 334, in eval (Object: absolute_url()) (Info: absolute_url) File string, line 0, in ? File /usr/local/Zope/lib/python/OFS/Traversable.py, line 119, in absolute_url (Object: Traversable) KeyError: SERVER_URL Cheers, seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] zope core dump
* Evan Simpson [EMAIL PROTECTED] [010709 21:12]: seb bacon wrote: I just tried to restart zope and got a core dump. The backtrace (pasted below) indicated a problem with the binascii module, and sure enough, trying to import it reproduced the segfault. I reinstalled python and it all worked again. Reinstalling Python to fix it?? That sounds like filesystem (or disk) corruption to me. Unless you've installed something between Zope startups that could conceivably have overwritten the module? That's what I thought. Thing is, it's on a RAID0+1 system with new, clean disks, and a current, stable kernel. Still, that's the only logical explanation really. I was just hoping you wouldn't say that ;-) seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] zope core dump
I just tried to restart zope and got a core dump. The backtrace (pasted below) indicated a problem with the binascii module, and sure enough, trying to import it reproduced the segfault. I reinstalled python and it all worked again. This isn't strictly a Zope issue but I wondered if anyone's seen this before, or can explain what might have happened? I'm a bit out of my depth when it comes to this kind of thing... cheers, seb (top of backtrace follows) #0 0x40181ba3 in frame_dummy () from /home/Zope-2.3.2-src/lib/python2.0/lib-dynload/binascii.so #1 0x40181a01 in _init () from /home/Zope-2.3.2-src/lib/python2.0/lib-dynload/binascii.so #2 0x40130c0a in dl_open_worker (a=0xbfffaa48) at dl-open.c:199 #3 0x4000ac3b in _dl_catch_error () at dl-error.c:99 #4 0x40130d1d in _dl_open () at dl-open.c:210 #5 0x4002e3d3 in dlopen_doit (a=0xbfffab58) at dlopen.c:41 #6 0x4000ac3b in _dl_catch_error () at dl-error.c:99 #7 0x4002e8b9 in _dlerror_run (operate=0x4002e3a8 dlopen_doit, args=0xbfffab58) at dlerror.c:125 #8 0x4002e393 in __dlopen_check ( file=0xbfffaea4 /home/Zope-2.3.2-src/lib/python2.0/lib-dynload/binascii.so, mode=2) at dlopen.c:53 #9 0x8069e14 in _PyImport_GetDynLoadFunc (fqname=0xbfffb334 binascii, shortname=0xbfffb334 binascii, pathname=0xbfffaea4 /home/Zope-2.3.2-src/lib/python2.0/lib-dynload/binascii.so, fp=0x8266ff8) at dynload_shlib.c:81 #10 0x80640c7 in _PyImport_LoadDynamicModule (name=0xbfffb334 binascii, pathname=0xbfffaea4 /home/Zope-2.3.2-src/lib/python2.0/lib-dynload/binascii.so, fp=0x8266ff8) at ./importdl.c:42 #11 0x806279e in load_module (name=0xbfffb334 binascii, fp=0x8266ff8, buf=0xbfffaea4 /home/Zope-2.3.2-src/lib/python2.0/lib-dynload/binascii.so, type=3) at import.c:1236 #12 0x8063355 in import_submodule (mod=0x80b7bcc, subname=0xbfffb334 binascii, fullname=0xbfffb334 binascii) at import.c:1755 #13 0x8062f53 in load_next (mod=0x80b7bcc, altmod=0x80b7bcc, ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] dtml-in batching badly
* Joachim Werner [EMAIL PROTECTED] [010618 20:28]: That's not the behaviour I'd expect. Can anyone confirm this is a bug? As LEE Kwan Soo has already said, it is not a bug, but a clever (too clever?) feature that should maybe not be enabled by default. Every second week or so somebody runs into this and thinks it is a bug. Thanks for the hint, folks. I'm not a zope newbie, and this still bit me. IMO there's something fairly wrong with the current setup. either the default behaviour should be changed to orphans=0, or the visibility of default values for tags should be improved (from the book: orphan=int The desired minimum batch size - no mention of defaults). Furthermore, the 'feature' doesn't work as I'd expect. In the example I posted, for the sequence (1,2,3,4), I got: batch 1: 1 batch 2: 2 3 4 batch 3: 3 4 batch 4: 4 This isn't in batches of at least 3... If it were iterating in minimum batches of 3, shouldn't that be: batch 1: 1 2 3 batch 2: 2 3 4 batch 3: 2 3 4 batch 4: 2 3 4 It's ugly! seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] dtml-in batching badly
Hi,
First, I don't post to this list normally; is it the best place to
discuss an apparent bug?
Anyway, the lowdown:
If you iterate over a list with a batch size of 1, it messes up
towards the end of the sequence. For example, the following code:
dtml-call REQUEST.set('hoo',(1,2,3,4))
dtml-in hoo
calling lt;dtml-in hoo size=1 start=dtml-var sequence-itemgt;:br
dtml-in hoo size=1 start=sequence-item
dtml-var sequence-item
/dtml-in hr
/dtml-in
produces the following output:
calling dtml-in hoo size=1 start=1:
1
calling dtml-in hoo size=1 start=2:
2 3 4
calling dtml-in hoo size=1 start=3:
3 4
calling dtml-in hoo size=1 start=4:
4
That's not the behaviour I'd expect. Can anyone confirm this is a
bug?
Cheers,
seb
___
Zope-Dev maillist - [EMAIL PROTECTED]
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] clipboard utility
Just a quick thought - It'd be useful to be able to see what is on your 'clipboard' when you're copyandpasting. Would it be a Bad Thing to factor out the first bit of OFS.CopySupport.manage_pasteObjects into a separate function, which is callable TTW? You could then iterate over the objects on the clipboard in dtml, etc. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Catalog in 2.3.1
* Adrian Hungate [EMAIL PROTECTED] [010419 10:09]: Are there some problems with the new catalog? I have spotted two possible problems: 1) In CatalogAware, there is a function reindex_all, which appears to have a few problems, like calling index_object instead of reindex_object. Also, why "sub = self.objectValues()" when sub is never used? 2) If I search a text index for a value that it does not contain, I get nothing back (No surprises there), but if I search for a word that is a substring of a word in the index, I get a Type Error (expected integer key). Did I do something wrong, or have I hit a bug? Don't know much about (1), but (2) is certainly a bug, and seems to have been fixed in CVS. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] Medusa and HTTP/1.1
I've been yelling at my ISP (BTopenworld) for having a badly configured transparent proxy cache, which caches all content *unless* the source specifies otherwise. It's been really messing up my development, and of course it's a concern for my users too. Hopefully they'll sort it out. Anyway, while I was researching for ammunition, I read all the HTTP/1.1 specs (RFC2068). Interestingly although the RFC strongly recommends making unvalidated objects uncacheable, it stops short of forbidding it. I wondered if it might be a good idea to make the ZServer more HTTP/1.1 compliant, by always adding validators to all objects (at present validators are only added to image / file objects). This is the recommended behaviour for servers. In the case of the ZServer, I guess the correct behaviour would be to have every page object return a Last-modified header, which defaults to the modified date of the newest component of the page. This behaviour could then be modified using cache managers like the Accelerated HTTP Cache Manager. Just wondered what anyone else thought. seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
RE: [Zope-dev] 2.3.0 release badness
FWIW, I recall having similar problems with external JavaScript files in NS - it seemed that the onload event of the body is triggered *before* the external JS is loaded into the namespace. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Steve Alexander Sent: 29 January 2001 17:07 To: Shane Hathaway Cc: [EMAIL PROTECTED] Subject: Re: [Zope-dev] 2.3.0 release badness Shane Hathaway wrote: [EMAIL PROTECTED] wrote: Of course, embedding the style in the page (a-la the Zope management interface) gets around this problem, but this is not an option for us. This is a known bug in Netscape. I'm intrigued to know what causes it (in more detail than "race condition"). Do you have a URL for a description of the bug? ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] IE5 / Medusa bug?
Tempting fate by claiming a bug...but although I'm sure I'm at fault here, there's no sensible reason for the results I'm getting. When I view one of several different pages with IE5, the last 11 bytes don't reach the browser. I've got a couple of other people to try it out. One of them reported the same symptoms, the other didn't. I don't get it with Netscape. I'd *really* appreciate it if anyone who has IE5 could have a go at http://test.jamkit.com and let me know (you can tell if the bug's happened if the source ends abruptly with something like '/ta'). Things I've deduced: - http://test.jamkit.com/index_html works :S - It's not related to the bad HTML in that example page (I've tried pages with perfect HTML) - It's related to how I've built the page (the Zope Welcome screen is fine, other pages built using the same product don't work. The product I'm building is a folderish thing with lots of extra navigational services) - it's always the last 11 bytes that are missing, however large the page is - I've sent exact copies of the HTTP headers to the server, using telnet, and there's no problem there I imagine the fact that I can make it work by adding index_html is the most telling point, but it's not telling me anything ;) I'll continue my research by eliminating elements until I've nailed down exactly the bit that's messing it up. Right now, though, I have to go to bed. Meanwhile, any comments? Cheers, seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] is _getCopy slow?
My product is performing incredibly badly. I profiled it and got the following results: ncalls tottime percall cumtime percall filename:lineno(function) ...snip... 4/10.0100.0036.3606.360 WebFactory.py:92(change_theme) 37/60.4400.0126.3301.055 CopySupport.py:426(_getCopy) 37/60.7100.0196.2701.045 ExportImport.py:126(importFile) 380.0200.0011.9300.051 BaseStorage.py:200(tpc_finish) 381.9100.0501.9100.050 FileStorage.py:768(_finish) For each folder in the instance, a method change_theme() is called recursively on each of its subfolders. The culprit appears to be the _getCopy call, which in turn calls importFile, and takes a whole second to call each time. The object being copied is in each case typically a folder containing 3 - 5 documents. Is _getCopy inherently slow, or am I misreading the profiler output, or is it more likely there's something wrong with my code? Cheers, seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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] Exceptions
I was just building in some error handling into some UI code, and wanted to catch errors relating to duplicate ids. The problem is that just about every client-side error raises the same kind of Exception, a 'Bad Request'. A quick grep counted 41 different types of 'Bad Request' in my Zope source. Wouldn't it be *much* nicer to have a hierarchy of exception types, so that applications can deal with them at an arbitrarily granular level? e.g. ZopeException | `RequestException | | | `XMLException | `IdException | | | `ReservedWordException | `DuplicateException Has this discussion taken place before? Would it be useful? Would its effort:benfits ratio be too great to justify doing? seb ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
RE: [Zope-dev] Inheritable Propertysheets!???!!?!?!?!!
AFAIK (but I'm no expert), a ZClass inherits its parents' propertysheets and you can access them in the normal way. The problem is that the all the propertysheets have to have different names. Example: If your parent class and the child class both have a property sheet called "Basic", but the child class is hoping to inherit someproperty from the parent class: ParentClass.Propertysheets.Basic.someproperty is ok, but ChildClass.Propertysheets.Basic.someproperty won't work, because "someproperty" is not in ChildClass's "Basic" propertysheet. If your parent class and child class do not share propertysheets with the same name, you *can* access parent properties: ChildClass.Propertysheets.ChildSheet.anotherproperty ChildClass.Propertysheets.Basic.someproperty will both work. If I'm correct, this is all wrong and a bad thing, surely? However that was the worst-explained thing I've ever been responsible for and it's probably wrong. That particular configuration of punctuation in the subject header just struck a chord with me... seb. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alexander Schonfeld Sent: 18 October 2000 10:25 To: [EMAIL PROTECTED] Subject: Re: [Zope-dev] Inheritable Propertysheets!???!!?!?!?!! I guess I can just use dtml methods that return lists and stuff, but is that as cool? On Wed, 18 Oct 2000 18:21:33 +0900 Alexander Schonfeld [EMAIL PROTECTED] wrote: I'm doing an experiment... If I add more '!' and '?' marks will I get a response. Soon with enough experimentation I can find the optimal number and frequency of variation. I want to inherit the properties of one zclass in another zclass, but it seems to cause some namespace clashing... shouldn't this be possible? Working with the instance of the class is fine, but inter-zclass inheritance (acquisition?) would be nice... Cool feature? Am I missing something? Thanks, Alex. 1010011010101001101010100110101010011010 0 Digital Garage$B!!%G%8%?%k
