November 1999 - Zope

Zope on BeOS
by Christopher Heschong 13 Nov '99

13 Nov '99

I'm an avid BeOS user, and I thought I'd point out a few cross-platform issues with Zope's web interface: Under NetPositive (the BeOS web browser), the management interface acts as "view." What I mean by that is if I click on a folder (whatever/ manage_workspace) it redirects to the index_html file. If I manually type in whatever/manage_main, I can get there, but this is not automatic. Is this because NetPositive doesn't understand Javascript? Also, BeOS does have python 1.5.2, but Zope doesn't actually compile . Here's the relevant info: In file included from /boot/home/Desktop/Zope-2.0.1-src/pcgi/pcgi- wrapper.c:51: /boot/home/Desktop/Zope-2.0.1-src/pcgi/pcgi.h:59: sys/un.h: No such file or directory /boot/home/Desktop/Zope-2.0.1-src/pcgi/pcgi.h:60: sys/ipc.h: No such file or directory /boot/home/Desktop/Zope-2.0.1-src/pcgi/pcgi.h:61: sys/sem.h: No such file or directory In file included from /boot/home/Desktop/Zope-2.0.1-src/pcgi/pcgi- wrapper.c:51: /boot/home/Desktop/Zope-2.0.1-src/pcgi/pcgi.h:63: arpa/inet.h: No such file or directory make: *** [pcgi-wrapper.o] Error 1 Traceback (innermost last): File "/boot/home/Desktop/Zope-2.0.1-src/w_pcgi.py", line 111, in ? if __name__=='__main__': main(sys.argv[0]) File "/boot/home/Desktop/Zope-2.0.1-src/w_pcgi.py", line 104, in main import build_pcgi File "/boot/home/Desktop/Zope-2.0.1-src/inst/build_pcgi.py", line 97, in ? do('make') File "/boot/home/Desktop/Zope-2.0.1-src/inst/do.py", line 103, in do if i and picky: raise SystemError, i SystemError: 2 I don't know if it would be possible to port Zope to BeOS, but it would be a useful addition. For more information about BeOS, visit http:// www.be.com/ It has standard posix-like development tools like gcc, etc. My main concern is the web interface, as I currently have to go find a Windows machine to effectively mess with any Zope stuff. Thanks in advance. -- Christopher Heschong The Wire Company

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getting traceback involving BIGFLOAT
by Matthew Wilbert 13 Nov '99

13 Nov '99

I was running Zope2 successfully under RH Linux 6.0. using pcgi behind Apache. I had a hardware problem and by the time I was able to fix it, I had to do some reinstalls, particularly of Python. Zope didn't like it. Now I have it almost working, but when I try to go the initial Zope page, I get a traceback that I can't figure out. It goes: /usr/lib/python1.5/site-packages/ZPublisher/Publish.py line 214 in publish_module /usr/lib/python1.5/site-packages/ZPublisher/Publish.py line 120 in publish /usr/lib/python1.5/site-packages/ZPublisher/Publish.py line 259 in get_module_info /usr/share/zope/lib/python/Zope/__init__.py line 94 in ? /usr/share/zope/lib/python/ZODB/__init__.py line 111 in ? /usr/share/zope/lib/python/ZODB/DB.py line 91 in ? /usr/share/zope/lib/python/ZODB/Connection.py line 96 in ? /usr/share/zope/lib/python/ZODB/ExportImport.py line 92 in ? /usr/share/zope/lib/python/Shared/DC/xml/ppml.py line 337 in ? /usr/share/zope/lib/python/Shared/DC/xml/ppml.py line 382 in ToXMLUnpickler ImportError: (<class exceptions.NameError at 80d59e8>, 'BINFLOAT') Any ideas as to what might be messed up would be appreciated. Matt Wilbert Matt.Wilbert(a)alum.mit.edu ______________________________________________________________________ Get Visto.com! Private groups, event calendars, email, and much more. Visto.com. Life on the Dot. Check it out @ http://www.visto.com/info

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RE: [Zope-dev] Generated Images Again
by Rob Page 13 Nov '99

13 Nov '99

> <IMG SRC="GenerateImage(arg)"> > <IMG SRC="GenerateImage(RESPONSE,arg)"> Try: <IMG SRC="GenerateImage(arg_used_in_external_method=arg_from_request)"> --Rob

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Re: [Zope] ZSERVER, THREADS, PERFORMANCE & FUTURE PERFORMANCE
by Michel Pelletier 13 Nov '99

13 Nov '99

Sam Gendler wrote: > > By the way, how easy is it to port from Zope to Zeo. It is transparent. There is no application level change in functionality. You can take an existing Zope site and fire it up with Zeo in a few seconds, and then switch back to the original threaded mode just as quickly. -Michel

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Re: [Zope-dev] Zope-beta failure on OSF/Alpha
by Jeff Rush 13 Nov '99

13 Nov '99

On Thu, 11 Nov 1999 18:04:08 +0100, Gilles lavaux wrote: >-Jeff Rush wrote: >> >> The reason I ask is that I created the RPMs and Red Hat then tested >> them on all of their platforms and reported that it works on all. Now >> I'm wondering whether their testing was extensive enough and >> they really don't work on an alpha. >I compiled the Zope2 from source myself, I also have compiled the new >python(1.5.2). > >I didn't know that Red-hat has a RPM for the version 2 of Zope, where is >it?? For the Intel platform or to get the source RPM, go to: http://starship.python.net/crew/jrush/Zope/ or you can find it via the 'rpmfind' tool that searches the RDF network. >Anyway I think that it can not works directly out of the Red-hat instalation >because of the fact that pyhton with red-hat 6.0 is version 1.5.10 whithout >thread. So you have to recompile or reinstall python. It works under Red Hat 6.1 and in fact, ships on the Power Tools CDROM that comes with that release. Red Hat 6.1 ships Python 1.5.2 w/threads. -Jeff Rush

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Copying displayed pages
by Robin Becker 13 Nov '99

13 Nov '99

Is there any way to get selected text + control-c to behave in the expected way on winnt/9x. I have a table which when copied into an excel spreadsheet from either NS 4.5 or IE5 is just crap. Anybody know how to make tables copy to the selection as tables? -- Robin Becker

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Re: [Zope] Python in expressions (fwd)
by Clarence Gardner 13 Nov '99

13 Nov '99

> > Try > <dtml-if "_.math.divmod(33,2) == 1"> a </dtml-if> Thanks, everyone. For some reason, in the line in the documentation "The following attributes are available through the variable _" the word 'attributes' didn't click with me as Python attributes.

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Re: [Zope] ZSERVER, THREADS, PERFORMANCE & FUTURE PERFORMANCE
by Jeff Rush 12 Nov '99

12 Nov '99

On Thu, 11 Nov 1999 18:34:31 -0500, Michel Pelletier wrote: >However, the goal of threading Zope was NOT to increase requests >per/sec, the goal was to allow simultaneous requests to happen, in Zope >1.x, requests were serialized and one requests wait for (possibly long >running) previous requests. Threading allows many requests to happen >simultaneously, and means that individual threads can call 'blocking' >methods without worrying about locking up the whole site. Related question -- if _adding_ threads doesn't gain much raw performance, then is it a sound workaround, on a site that (a) does a lot of OODB writing and (b) doesn't take a ton'o'hits, to turn threading off to avoid the dreaded ZODB conflicts. It seems this wouldn't lose much performance either. Or will the nifty async properties of Medusa still allow >1 transactions to have ZODB conflicts? Basically, is threading the _only_ way Zope can ever overlap requests internally? I'm looking to document a workaround that *guarantees* those conflicts never happen, even at some small loss of performance. -Jeff Rush

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Python in expressions
by Clarence Gardner 12 Nov '99

12 Nov '99

Hello, it's my first day with Zope! I'm trying to do a simple Python expression, e.g., <dtml-if "divmod(33,2) == 1"> a </dtml-if> I get a NameError. I was given to understand that double-quoted expressions are normal Python expressions, and divmod is a builtin, so there shouldn't be a problem. Just for the heck of it, after that error, I tried <dtml-if "_.has_key('divmod')"> which evaluated to false. Am I missing something simple here? Thanks -=-=-=-=-=-=-=-= Clarence Gardner Software Engineer NetLojix Communications, Inc. NASDAQ:NETX clarence(a)netlojix.com

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Zope database on a relational DB [Q]
by Bruno Mattarollo 12 Nov '99

12 Nov '99

Hello. Is it possible to store the Zope database (Data.fs) into a relational one? For example an Oracle 8i? Would that be possible in the future? I mean, since you can export an object into XML and this is been integrated quite well (my opinion only) into Oracle 8i, it can be done, no? TIA /B Bruno Mattarollo <brunomadv(a)ciudad.com.ar> --- Python Powered <http://www.python.org/psa/>

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