- Zope - Zope lists

- Next problem - looking for dtml file in the wrong place...
by skip＠calendar.com 08 Dec '98

08 Dec '98

I'm inching along. Thanks to Michel Pelletier and Andy Kuchling, I now know my calendar module is a Product and what most (all?) of the necessary scaffolding is. My Calendar class supports a show method: def show(self, year, month=0): """return plain ASCII calendar month == 0 ==> display calendar for entire year """ if year < 1 or year > 9999: raise ValueError, ("year out of range: %d" % year) if month < 0 or month > 12: raise ValueError, ("month out of range: %d" % month) if month: cal = os.popen("cal %s %s" % (month, year)).read() else: cal = os.popen("cal %s" % year).read() return HTMLFile('cal', month=month, year=year, cal=cal) When I access http://localhost:8080/Calendar/show?month:int=0&year:int=1998 I get the following traceback: Traceback (innermost last): File /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/ZPublisher/Publish.py, line 861, in publish_module File /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/ZPublisher/Publish.py, line 585, in publish (Info: /Calendar/show) File /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/ZPublisher/Response.py, line 284, in setBody File /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/DocumentTemplate/DT_HTML.py, line 217, in __str__ (Object: /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/cal.dtml) File /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/DocumentTemplate/DT_HTML.py, line 209, in quotedHTML (Object: /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/cal.dtml) File /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/DocumentTemplate/DT_String.py, line 532, in read_raw (Object: /home/dolphin/skip/src/Zope-1.9b1-src/lib/python/cal.dtml) IOError: (2, 'No such file or directory') which suggests to me that my cal.dtml file is not where Zope expects to find it. All files in my Products/Calendar directory are in that directory: % ls -F lib/python/Products/Calendar/ __init__.py cal.dtml vcal.gif __init__.pyc cal.py addCalendar_form.dtml cal.pyc Why is it looking up two levels in the directory hierarchy for the DTML file? As far as I can tell, I'm using the same calling conventions for HTMLFile objects as the MailHost and sample Products do. Any suggestions this time? Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip(a)calendar.com | Musi-Cal: http://concerts.calendar.com/ 518-372-5583

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- PROPOSAL: Rearrange Zope Documents
by Jim Fulton 08 Dec '98

08 Dec '98

"Christopher G. Petrilli" wrote: > > OK, this REALLY shouldn't be difficult, but I've tried every variation > of '_' and everythign else I can think of, read the source, seen > references to _p_mtime that don't seem to go anywhere... I'm obviously > missing something hideously transparent... > > How do I insert the time a document was last modified? > > i.e. I wanna create standard_html_footer that has something like: > > "Last modified: date here" > > at the bottom. I can't get anything to resolve correctly. The problem is that Documents are not what you think they are. They are miss-named. They should be called "DTML Methods". There should be another kind of object called "DTML Documents" that are meant to be the source of information, not a method. They should have properties and search their own attribute namespace before their folder's. Then, when a DTML method, like standard_html_footer, was used in a DTML document, and had:  the modification time of the DTML document would be inserted. I propose, by the end of the Zope beta period to: - Rename Document to "DTML Method", - Add a new object type, "DTML Document", and as a bonus: - Add a new object type, "Structured Text Document", that would use Structured text input and allow DTML tags to be interspursed, possibly using the Python string format or some other less-verbose format than SSI. Jim -- Jim Fulton mailto:jim@digicool.com Technical Director (540) 371-6909 Python Powered! Digital Creations http://www.digicool.com http://www.python.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.

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- Re: ExtensionClass/__of__ credit
by Jim Fulton 08 Dec '98

08 Dec '98

"Phillip J. Eby" wrote: > > Hey Jim, I'm in the midst of writing a paper on ASDF, and I want to > properly credit the invention of the '__of__' protocol and its > ExtensionClass implementation. I'm in the middle of a section where I'm > explaining how __of__ plus wrappers is the world's simplest (and coolest) > meta-object protocol for implementing acquisition, inheritance, and > method-to-instance binding. > > Currently I am referring to it as: > > "a simple, yet powerful dynamic binding technique invented by computer > scientist Jim Fulton (Digital Creations' Technical Director)" > > Is this correct? If you are looking for a reference I would use some think like: "The __of__ protocol was proposed by Jim Fulton and implemented in the ExtensionClass system [Fulton 96x] ... [Fulton 96x] Fulton, James L., Extension Classes, Python Extension Types Become Classes, http://www.digicool.com/releases/ExtensionClass/ExtensionClass.html, 1996. I happen to agree with you that __of__ an extremely useful protocol that is a natural extension of Python's method mechanism. I feel as though I've been a lone voice in the wilderness advocating it. Are you a member of the types-sig, http://www.python.org/sigs/types-sig/ ? That would be a good place to champion __of__. I think there's been some relevant discussion there, but I've been to busy with Zope to pay attention. :( Jim -- Jim Fulton mailto:jim@digicool.com Technical Director (540) 371-6909 Python Powered! Digital Creations http://www.digicool.com http://www.python.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.

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- iterative sorting w/dtml
by kent＠eaenki.nde.swri.edu 08 Dec '98

08 Dec '98

when using:  How can one filter the 'name' list prior to sorting? For example, to lower(case) the values, but I am looking for a more general solution.

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- Importing objects
by Andy Dustman 08 Dec '98

08 Dec '98

I have an application where I would collect various automated e-mail responses which arrive more or less randomly. How can I get these into Zope? It looks like I could use the ZPublisher.Client module. Following along in the code, it looks like it ought to do the job. Is there some existing object type I can use for this, or do I have to make one? Note: the Client module uses rand, which I think is obsoleted; it is no longer in the Python Library Reference. To get around this, I did: #from rand import rand from whrandom import randint def rand(): return randint(0,2**31) Although, the only thing it is doing with rand.rand() is making a MIME multipart boundary, which could also be done with mimetools.choose_boundary(). -- Andy Dustman You should always say "spam" and "eggs" ComStar Communications Corp. instead of "foo" and "bar" (706) 549-7689 | PGP KeyID=0xC72F3F1D in Python examples. (Mark Lutz)

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Re: [Zope] - Finding recently changed pages
by Jim Fulton 08 Dec '98

08 Dec '98

Kent Polk wrote: > > Hi A.M. (A.M. Kuchling), in <199812061624.LAA25965(a)207-172-39-232.s232.tnt10.ann.erols.com> on Dec 6 you wrote: > > > At http://discuss.userland.com/msgReader$857 , Dave Winer suggests > > that Web sites should have a top-level siteChanges.xml file that lists > > URLs that have recently changed. Search engines could then use this > > information to only crawl pages that have changed recently, which > > would let them keep up to date more easily. How would one go about > > implementing something like this under Zope? Andrew, I seem to have missplaced your original post, so I'll reply here. One problem we've run into whenever we've approached this is that it's really hard to *define* when a URL changes. If A URL is computed fron n objects, when does a URL change? When one of the n objects have changed? When they've all changed? When m (1 <= m <= n) have changed? When some particular subobjects have changed? I suspect that the definition could be application dependent. Jim -- Jim Fulton mailto:jim@digicool.com Technical Director (540) 371-6909 Python Powered! Digital Creations http://www.digicool.com http://www.python.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.

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- Mailman Problems
by Amos Latteier 08 Dec '98

08 Dec '98

Hi Folks: We've been having a fair amount of trouble with Mailman. So if something isn't working right for you please bear with us; we're aware that there are problems and we're trying to fix them. Also: * We are currently running mailman behind a firewall so you CANNOT manage your subscription through the web. * I put instructions on managing your subscription with email on the Zope site: http://www.zope.org/Community/Mailman Thanks for your patience. -Amos -- Amos Latteier mailto:amos@digicool.com Digital Creations http://www.digicool.com

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RE: [Zope] - Rewrite rules somewhere besides httpd.conf?
by Jeff Bauer 08 Dec '98

08 Dec '98

> Can the Apache rewrite rules be put in a file other > than httpd.conf? For example, could they be put in > a file local to the Zope directories such as a .htaccess > file? It can, but it's more difficult to set up properly than including rewrite rules in httpd.conf, which is no cakewalk. Are you using .htaccess because you don't have access to httpd.conf or for some other reason? Here are some things to consider: - Verify RewriteBase is set correctly for the location you're using. - Try using RewriteLog with loglevel 9 and see what it says. Note that if your webmaster has disabled this, you're out of luck. - Remember to check the apache access and error logs. Lest anyone confuse me for someone who knows what they're doing, I've note used .htaccess with Zope/Apache yet. I hate to weasel out of a legitimate question, but this really is an Apache issue. If you have problems getting .htaccess to work, you may find further answers available from the comp.infosystems.www.servers.unix newsgroup. Good luck, Jeff Bauer Rubicon, Inc.

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RE: [Zope] - newbie PCGI problems (fwd)
by Peter J Ulintz 08 Dec '98

08 Dec '98

On Mon, 7 Dec 1998, Jeff Bauer wrote: > > > NEWBIE QUESTION I: > > Exactly where do you put the mod_rewrite config info? I > > tried putting it in the normal three .conf files and got > > errors. I DID compile the server with the mod_rewrite > > included. > > The Rewrite directives for Apache normally go in > httpd.conf. Actually the Rewrite directives should only > affect authorization, so if you are denied access *after* > the user name and password dialog appears, everything > else with PCGI is probably working. Cool. I added em, but it didn't seem to help much. > > Ah, this points out a potential problem. If you start using > Zope with ZopeHTTPServer under your account, then it's possible > that the database is no longer accessible through your web > server. This is something we should document better, because > it represents a natural progression of tasks. > Yea, I probably shoulda mentioned that... I did run the wo_pcgi.py script first with the ZopeHTTPServer, and it installed flawlessly, and I played around in there a bit... > > File > > "/export/home/pulintz/Zope-1.9b1-src/lib/python/ > > Products/sample/Product.py", > > line 24, in ? > > import OFS.SimpleItem, Persistence, Acquisition, AccessControl.Role > > ImportError: (<class exceptions.ImportError at ab540>, > > 'No module named Persistence') > > > Went into the Product.py file and changed "Persistence" to > > "BoboPOS.Persistence", and tried to bring up zope in the > > browser again. I got the authentication window! But I > > couldn't authenticate, getting the error message concerning > > the authentication headers. > > Changing the code in Product.py is a no-no at this stage > unless you're doing something benign (e.g. log file or > MrCreosote) because you're simply hiding a problem that > will be more difficult to track later. See below. > Okay, changed that back... actually, to be totally safe, I scrubbed everything and reinstalled Zope, making the appropriate permissions changes, and adding the PYTHONPATH to the pcgi info file... I also rechecked the apache configuration files to make sure the mod_rewrite was included in the build, and to make sure that I could follow symbolic links,etc. Tried to fire up Zope and got the "Serious Application Error" screen. Checked the pcgi.log, and had the same permission trouble with the Data.bbb file, so I reset these permissions to be globally writable and tried again-- got the authentication screen. Still can't authenticate. Gives the "You are not authorized to access this resource. No Authorization header found" error. Reading your "Sacrificial Virgin" email: so on Solaris is it necessary to have the UNION_SEMUN macro in pcgi.h? (I'll try and avoid editing the Publish.unauthorized() method) Anything else need to be done, or should I just wait for the next release? > > > > PCGI info file: /export/home/pulintz/Zope-1.9b1-src/Zope.cgi > > PCGI wrapper: /export/home/pulintz/Zope-1.9b1-src/pcgi/pcgi-wrapper > > error attempting: 'from cgi_module_publisher import publish_module' > > status: FAILURE > > This provides us an important clue, although it's slightly > misreported and you actually had it available in your earlier > traceback. (Zope was released before pcgifile.py could be > updated; to be remedied shortly.) > > The pcgi_publisher.py module is actually trying to import > publish_module from ZPublisher. > Yea-- Can't seem to get around this... <cringe> Potential stupid question: Shouldn't there be a ZPublisher module somewhere? </cringe> Anyway, trying your advice below... > Since your problem (authentication aside) is essentially > one of not being able to import the correct module, for > the time being let's put PYTHONPATH in your Zope.cgi > info file: > > PYTHONPATH=/usr/local/bin/python:. > > If the solution still isn't obvious, you can try > to expedite things by creating a test cgi file, > TestZope.cgi: > > #!/usr/local/bin/python > > print "Content-type: text/html" > print > print "Looks OK" > > Get TestZope.cgi working and then add some import statements, > placed just before print "Looks OK", e.g.: > > from ZPublisher import publish_module > > As it breaks, you can add to your import path by iteratively > doing the following, placing the sys.path.append just ahead > of importing publish_module. > > import sys > sys.path.append('/export/home/...') > > The step above shouldn't be necessary, but it helps to > define a small test case so that you can narrow down the > real problem. And it's better than sitting there staring > at your screen <wink>. > The simple script with just "Looks okay" works fine of coarse, but I can't seem to find a path to ZPublisher anywhere, no matter how many locations I add to sys.path. Trying to test pcgi more, I did the Example /pcgitest/getTime and I got the "Temporarily Unavailable" screen, with no additional error message. (And I did make sure the directives were set correctly) NOW, the ../cgi-bin/pcgifile.py?filename=.../Zope.cgi thing gives me PCGI info file: /export/home/pulintz/Zope-1.9b1-src/Zope.cgi PCGI wrapper: /export/home/pulintz/Zope-1.9b1-src/pcgi/pcgi-wrapper PCGI_SOCKET_FILE write permission error: /export/home/pulintz/Zope-1.9b1-src/var/pcgi.soc status: FAILURE but I've checked the permissions on everything, and /var is globally writable. I'll keep at it... I installed Bobo, and that works, which makes me feel a bit better. Maybe I'll content myself to play around with that until the dust settles a bit. Thanks for the help so far! -P

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- Q: Any experience with PIL and charting?
by Paul Everitt 08 Dec '98

08 Dec '98

Does anybody have any experience with PIL and drawing charts, such as pie charts? --Paul Paul Everitt Digital Creations paul(a)digicool.com 540.371.6909

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