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GPL stuff (OT)
by Phill Hugo 13 Sep '00

13 Sep '00

Zopistas, I've heard a lot of GPL issued raised recently and I want to say a couple of things to hopefully end the subject. I don't mind you pointing replies to me if they aren't of general interest [hint ;)] Firstly, read the GPL. It sounds like some of you talking about it haven't (or have forgotten its contents). That'll clear most things up. Its ambiguousity is limited to very technical cases such as dynamic linking etc. Even in that case, the use of the GPL'd C Header files at compile time can be taken to be indication of agreement to the GPL (even the use of header files produces a legally defined "derivative work" - one look at the sql.h files MS distibute to make that clear. The lack of court testing is irrelevent too, that hasn't happened becuase no one has stood to gain from it - a good indication that they'd lose. If any company found real legal fault with the GPL where they could take code and not be force to comply, they would have done. The legal issues surround very specfic cases, not the entire license. The Objective C front end to GCC is there because NeXT backed down after admitting a futile case. The "its not been tested in court" argument applies for many many licenses and EULAs but you can bet that the flip side is true also - the reason its not got to court is becuase everyone seems to be agreeing to it out of court - a precedent no court would ignore if it ever came to it. The compatibility issues of [MQZ]PL / GPL are generally cases where some case is strongly demanded which the GPL strongly rejects. Things like choice of law, the right to take patches for non Free use etc would cause incompatibility due to the difference in the rights assigned to the user under GPL and those not allowed under the other. This DOESN'T stop you using the GPL in Zope though if you specifically allow it on your side and the creators also do. As far as I know, DC hasn't forbade modules under GPL to be used, or rather they have made the Product interface "open" enough to allow even proprietry Products to be written and used. Of course, this is module authoring (even Linux kernel modules need not be under GPL). In the case of taking ObjectManager.py and adding things to it, that stays under ZPL like it or not (even your changes). That is where the two are incompatible. You can take embed GPL code in BSD code - that's why they are "compatible". To call that "pilfering" but not mention companies who take BSD code and don't even share their extenstions is a little harsh I think (the windows FTP command comes to mind). I don't think that using a GPLd product in Zope (via the Product interface) would mean you have to give source away for _your_ Products and site code which uses them. They are distinct and bound only by the open interface Zope provides. If, however, you change the GPL'd Product, then you will have to stick with the GPL. Either that or re-implement. And yes, you will have to offer the GPL'd parts under the GPL terms if you distribute the whole. A real world case of this? There are many commercial products that include GPL code. I've seen it used in firewalls and printers and in all cases the GPL parts where distibuted under GPL of course. The distinct parts (non linked, seperated by "open interface" - be that as seperate processes, kernel modules etc) are not always available under GPL. Philips' Tivo site has their changes to Linux under GPL available. You won't find their MPEG suite though - shame ;) The GPL has no direct stance on making money or otherwise. You can sell GPL'd code for all you like, changes or none. It only governs the rights assigned to those YOU distribute it to (not the world). However, that one customer then has the right to distribute to the world. Unless you are bloody good with your support and documentation, they won't need you. If you are good that's a different matter. The choice of license on an open project isn't, from the real world, an indication of how well it'll do commercially either. Yes, apache, XFree86, Perl, Python etc etc all use non GPL licenses and that's good for them in some cases - their aims are DIFFERENT to FSF/GNUs. Besides, Linux, GNOME and the GNU compiler tools get just the same amount of commercial recognition (Mozilla is now also under GPL), if not more and from just the same people. That's about it. The only really clarifcation needed to clear this all up is... 1) DC to say Products do not have to be under ZPL and to deem their Product API an open interface akin to Linus' statement on the Linux kernel module interface or RMS's on calling GPL'd apps through the System() call. 2) Any GPL code that effects Zope's core will have to be deemed under ZPL while running with Zope. I'm not sure any Products do this but in the case of any, this would sort it out. Yes, its really just a dual licensing scheme but many do that - Mozilla, Perl and Qt amongst them (and all with the GPL alongside their other license). In the case of the first being granted, its only the latter that would cause "distribution concerns" I think. Thankfully its also a lot more unlikely to happen. Phill phill(a)gnu.org

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Zope 2.2.1 Vrs Apache Benchmarks using Apache Bench (AB)
by J. Atwood 13 Sep '00

13 Sep '00

I have done this before (http://www.zope.org/Members/BwanaZulia/benchmarks.html) but I just got my hands on a brand new server and thought I would see how 2.2.1 does. Machine: 600 MHz, 128 MB Ram, 20 GB EIDE drive, Linux 6.2 Ran it 5 times.. always came out close to this (+/- 1 RPS) Server Software: Zope/Zope Server Port: 80 Document Path: /index_html Document Length: 184 bytes Concurrency Level: 25 Time taken for tests: 9.715 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 387387 bytes HTML transferred: 184184 bytes Requests per second: 102.93 Transfer rate: 39.88 kb/s received Connnection Times (ms) min avg max Connect: 0 5 254 Processing: 100 234 36 Total: 100 239 290 And Apache which I ran a lot. The RPS were anywhere from 250-850.. so this was about average of all of them. Server Software: Apache/1.3.12 Server Port: 8080 Document Path: /index.html Document Length: 231 bytes Concurrency Level: 25 Time taken for tests: 1.896 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 520520 bytes HTML transferred: 231231 bytes Requests per second: 527.43 Transfer rate: 274.54 kb/s received Connnection Times (ms) min avg max Connect: 0 3 27 Processing: 18 42 706 Total: 18 45 733 Interesting as I upped the anti (requests and concurrency) Zope stuck to about 95-100 RPS and Apache started to lower (250-650). Disclaimer: This was a totally static test and it only shows how fast Zope can serve up static pages as Apache certainly does not have all the features of Zope. This is not very scientific just interesting. Take a look the page linked at the top if you want to have look at some other tests. J

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Why do Copy/Paste attempts fail?
by Roland Reumerman 13 Sep '00

13 Sep '00

I'm using Zope 2.2.1 on NT. I've imported an exported binary file into a freshly created Zope server [whose objects somehow show up under some Zope folder]. I want to remove the entire object structure one level up, because all the paths contained in those objects are no longer valid. Therefore I perform several copy/paste and cut/paste operations on the several DTML methods etc. in the Zope sub folder. However, they all fail with the same error message, both as super user and manager: One or more items referred to in the clipboard data was not found. The item may have been moved or deleted after you copied it. What is going on here? Traceback (innermost last): File E:\PROGRA~1\DDSN\lib\python\ZPublisher\Publish.py, line 222, in publish_module File E:\PROGRA~1\DDSN\lib\python\ZPublisher\Publish.py, line 187, in publish File E:\PROGRA~1\DDSN\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File E:\PROGRA~1\DDSN\lib\python\ZPublisher\Publish.py, line 171, in publish File E:\PROGRA~1\DDSN\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_pasteObjects) File E:\PROGRA~1\DDSN\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: manage_pasteObjects) File E:\PROGRA~1\DDSN\lib\python\OFS\CopySupport.py, line 202, in manage_pasteObjects (Object: ApplicationDefaultPermissions) Copy Error: (see above) _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com.

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Oops...
by Shane Hathaway 13 Sep '00

13 Sep '00

You can quote me: One cannot experiment with mail systems without creating a mail loop at some time. If you get a mail bounce message from my box, please ignore it. It was an accident. Shane

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RE: [Zope] how to change the 'Zope' realm/resource??
by Brian Lloyd 13 Sep '00

13 Sep '00

> Steve Drees wrote: > > WHat if we want to change the realm dependent on the folder? > > > > I.e. Is there a way to change this at run-time? > > I'd love to know the answer to this one too :-) > > Chris The realm is currently an attribute of the RESPONSE object. There is a 'realm' class attribute which provides the default realm - you could either somehow change this as needed (which may be sort of hard, especially since unauthorized usually gets raised before user code ever gets run), or change the default class attribute. You could change the default class attribute by either: - hacking the code (bleah) - or maybe better, create a "product" in your lib/python/Products (say RealmHack). The product dir would only have an __init__.py file that looked like: import ZPublisher.HTTPResponse ZPublisher.HTTPResponse.HTTPResponse.realm='whatever' ...which would allow you change the default class attr without hacking the code itself. When your product gets imported (at startup time), your realm would be used. Note that wouldn't help with "per folder" realm changing. I'm open to suggestions on that. One way I suppose would be to subclass Folder and implement an extended version of __bobo_traverse__ that changed the realm upon traversal. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Re: [Zope] Backslash as line continuation in C (Unix)
by Hung Jung Lu 13 Sep '00

13 Sep '00

>Or your source files get white space after the "\" only when transported >to Linux; this may happen if under Linux the lines of your source files >still end with CR-LF (carriage return, line feed) as they do in Windows, >instead of only LF (the expected end of line character in Unix). Yeap yeap, this is exactly the problem. :) I have written a small Python program and got rid of the CR characters. The problem must have happened when the original author FTP'ed the files in binary mode from Windows onto a Unix machine. Thanks to everyone that have helped! Hung Jung _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com.

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FW: list of users tied to database
by tom smith 13 Sep '00

13 Sep '00

---------- From: tom smith <tom(a)othermedia.com> Date: Wed, 13 Sep 2000 15:37:02 +0100 To: <gotcha(a)swing.be> Subject: Re: list of users tied to database on 13/9/00 3:03 pm, gotcha(a)swing.be at gotcha(a)swing.be wrote: > So maybe, you could try something like changing your previous > code to > > <dtml-in "theOTHERintranet.acl_users.getUserNames()"> > <dtml-let TheUserName==<dtml-var sequence-item> > <dtml-in "get_email('UserName=<dtml-var TheUserName>')"> > <dtml-var Email><br> > </dtml-in> > </dtml-let> > </dtml-in> > > Hope it can help, I can't quite get this to work. I tried adding an extra > to line 2. It seems there's one missing. I get errors in the let statement. Is UserName a reserved word? arrgh! This is so close... tom p.s the"UserInfo" product may make all this academic, but I've yet to install it to find out. http://www.zope.org/Members/did/UserInfoFolder

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dtml-raise and standard_error_message
by Diego Rodrigo Neufert 13 Sep '00

13 Sep '00

Hi.. I'm having problems to do dtml-raise show the error in standard_error_message. Here's what i'm doing: <dtml-raise type="ErrType"> err msg </dtml-raise> I got an error screen but it's not the standard_error_message How to make dtml-raise show the error in standard_error_message? Thanks -- --------------------------- Diego Rodrigo Neufert -webmaster --------------------------- (Magic Web Design) (email) (diego(a)magicwebdesign.com.br) (curitiba) (pr)

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Re: list of users tied to database
by gotcha＠swing.be 13 Sep '00

13 Sep '00

Quoting : > on 13/9/00 2:47 pm, gotcha(a)swing.be at gotcha(a)swing.be wrote: > > > I am still a newbie, but I wonder if you can use the sequence-item of > > a enclosing dtml-in inside the definition of a nested dtml-in > > yeah, I think I"ve done this before by using a <dtml-let.... to set a > variable, but can't for the life of me work out how to do it > > <dtml-in "theOTHERintranet.acl_users.getUserNames()"> > <dtml-in "get_email('UserName=<dtml-var sequence-item>')"> > <dtml-var Email><br> > </dtml-in> > </dtml-in> So maybe, you could try something like changing your previous code to <dtml-in "theOTHERintranet.acl_users.getUserNames()"> <dtml-let TheUserName==<dtml-var sequence-item> <dtml-in "get_email('UserName=<dtml-var TheUserName>')"> <dtml-var Email><br> </dtml-in> </dtml-let> </dtml-in> Hope it can help, Godefroid Chapelle --------------------- BubbleNet sprl rue Victor Horta 30 1348 Louvain-la-Neuve Belgium --------------------------------------------------------------------- This mail sent through SwinG Webmail: http://mail.swing.be

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2.2.0b4 to 2.2.1
by Diego Rodrigo Neufert 13 Sep '00

13 Sep '00

It's safe to update 2.2.0b4 to 2.2.1? Or I need to install 2.2.0final first? Thanks in advance... -- --------------------------- Diego Rodrigo Neufert -webmaster --------------------------- (Magic Web Design) (email) (diego(a)magicwebdesign.com.br) (curitiba) (pr)

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