December 1999 - Zope

RE: [Zope] Python Products
by Michel Pelletier 21 Dec '99

21 Dec '99

> -----Original Message----- > From: Stephen Pitts [mailto:smpitts@midsouth.rr.com] > Sent: Monday, December 20, 1999 4:10 PM > To: zope(a)zope.org > Subject: [Zope] Python Products > > > Is there any way to get Zope to reread a Python product's > files without > restarting? If Zope is running in debug model, all HTMLFile objects and external methods are reloaded every time they are hit. The only way to reload python code is to restart Zope. > I'm developing using a cycle like this: > * change .py file in lib/python/Products/* > * save changes > * restart Zope (takes 10 seconds :-() > > Is there a better way? You could try developing a patch that uses the python reload() method. -Michel

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RE: [Zope] Re: [python] python (fwd)
by Oleg Broytmann 21 Dec '99

21 Dec '99

> > A friend of me has a problem. He tries to add programmatically the > > instance of Boring product to a folder, but without success. > > How is it not succeeding? Is there a traceback? > > -Michel Traceback attached. It can't find manage_addBoring...

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RE: [Zope] Manage page error
by Michel Pelletier 21 Dec '99

21 Dec '99

> -----Original Message----- > From: James Wheatcroft [mailto:jwheat@zip.com.au] > Sent: Monday, December 20, 1999 11:53 PM > To: zope(a)zope.org > Subject: [Zope] Manage page error > > > I'm getting the error when I go to the manage page for the > first time (using pcgi). Could anyone provide any pointers? > > Temporarily Unavailable > The resource you requested is temporarily unavailable - > please try again > later. > (102) failure during connect >  <guess> I suspect pgci cannot find, or does not have permission to see your Zope.cgi file. Check all permissions and make sure the user that Apache runs as can jive with Zope. </guess> -Michel

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RE: [Zope] Part-time tracebacks
by Michel Pelletier 21 Dec '99

21 Dec '99

> -----Original Message----- > From: Phil Harris [mailto:phil.harris@zope.co.uk] > Sent: Tuesday, December 21, 1999 9:20 AM > To: Michel Pelletier; Zope(a)zope.org > Subject: RE: [Zope] Part-time tracebacks > > > Right..... > > But why would documents of exactly the same Zope type and content-type > behave differently??? I don't know, perhaps all the objects your external method is chewing (I'm assuming an EM here) are not all objects if the same type, it's happened to me... My wrapped object suggestion may not be the case, but that's what it looks like from your traceback. What might be useful is to fire up Zope in DeBug mode and wrap your code with something like: try: pass # your code here... except: import pdb pdb.set_trace() When an exception gets raised, you'll find your Zope in the python debugger waiting for input (all other Zope services will be locked out, BTW). Now you can inspect your object to see what it really is: pdb> p obj <DTMLMethod instance at 8403ed8> pdb> type(obj) <extension class Acquisition.ImplicitAcquirerWrapper at 400fa3b0> pdb> etc... at this point it's kinda fun (in my sick and twisted world) to play around with the obj in question, examining all of its various aq_ properties, like aq_self, aq_parent, aq_inner, aq_inContextOf, and aq_uncle. > These were all File with a type of text/xml, so why the difference??? Not sure. -Michel

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RE: [Zope] Re: [python] python (fwd)
by Michel Pelletier 21 Dec '99

21 Dec '99

> -----Original Message----- > From: Oleg Broytmann [mailto:phd@sun.med.ru] > Sent: Tuesday, December 21, 1999 6:16 AM > To: Zope Mailing List; Python Mailing List @ GlasNet > Subject: [Zope] Re: [python] python (fwd) > > > Hello! > > A friend of me has a problem. He tries to add programmatically the > instance of Boring product to a folder, but without success. How is it not succeeding? Is there a traceback? -Michel

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RE: [Zope] Part-time tracebacks
by Michel Pelletier 21 Dec '99

21 Dec '99

> -----Original Message----- > From: Phil Harris [mailto:phil.harris@zope.co.uk] > Sent: Sunday, December 19, 1999 5:58 PM > To: Zope(a)zope.org > Subject: [Zope] Part-time tracebacks > > Hi all, > > I have a problem. > > I have a folder that contains file objects that contain > text/xml. (I know I > could have used XMLDocuments, but I found them too slow). > > These documents are being rendered to html via xsl in an > external method, > using a java based xsl processor and this is pretty much > working well, but. > > Some of the documents cause the error below, any ideas? > > Error Type: TypeError > Error Value: argument 1: expected read-only character buffer, > ImplicitAcquirerWrapper found Most objects in Zope are wrapped up with special wrappers that allow the Acquisition machinery to work. Your code is looking for a string, but finding a wrapped object. Zope usualy handles all of these details for you, but when you drop down to python you have to be aware of them sometimes. if you wrapped object is called 'obj', then the *unwrapped* version of that exact same object can be gotten with 'obj.aq_self'. You can do a simple test in python: if hasattr(obj, 'aq_self'): # then it's wrapped obj = obj.aq_self This will unwrap the object for you. -Michel

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Problem with Confera
by Oras Kaarel (2914) 21 Dec '99

21 Dec '99

Hi :-) I have a problem with Confera. The messages are ranked by date - the newest message is at the bottom. Is it possible that the newest message is at the top ?? Thankfully ------------------------------------------------------- Kaarel Oras e-mail: kaarel.oras(a)merita.fi tel: +372 628 3355

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Expressions with strings with double-quotations?
by Dave Parker 21 Dec '99

21 Dec '99

Well, this may sound silly, but... I've been having a heck of a time figuring out how to do DTML expression which builds a string which contains a double-quotation mark in Zope 2.0. I've tried \", which is supposed to be the Python syntax for doing it, but to no avail. Any ideas? This is (theoretically) as in <dtml-var "'hello \" world'"> - whenever I try anything like this Zope misses the escape and terminates the expression (colorfully)...

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Errors adding second Zope instance to NT box : asyncore.py error anyone ? error anyone ?
by chas 21 Dec '99

21 Dec '99

This is an error that has plagued me for weeks/months whenever trying to add a second Zope instance to my NT box. The following error messages always appear when I try to run start.bat for the second instance (even if the first instance is not running) and the second Zope instance never starts. Does anyone have any idea what's causing it ? ------ 1999-12-20T18:53:54 PROBLEM(100) ZServer Computing default hostname ------ 1999-12-20T18:53:55 INFO(0) ZServer Medusa (V1.13) started at Tue Dec 21 02:53:5 5 1999 Hostname: EGG Port:80 ------ 1999-12-20T18:53:55 INFO(0) ZServer FTP server started at Tue Dec 21 02:53:55 19 99 Authorizer:None Hostname: egg Port: 8021 ------ 1999-12-20T18:53:55 INFO(0) ZServer Monitor Server (V1.5) started on port 9099 Traceback (innermost last): File "D:\Inetpub\MoreTesting\z2.py", line 596, in ? asyncore.loop() File "D:\Inetpub\MORETE~1\ZServer\medusa\asyncore.py", line 107, in loop poll_fun (timeout) File "D:\Inetpub\MORETE~1\ZServer\medusa\asyncore.py", line 55, in poll (r,w,e) = select.select (r,w,e, timeout) select.error: (0, 'Error') Again, I stress that no other Zope instances were running when the above occured. The steps to repeat this. I already have one Zope server installed on my NT workstation box. With this Zope instance NOT running, I then do the following : 1. Install a second Zope instance in its own separate location 2. Copy over the Data.fs from the first instance, and the extensions directory and the products from /lib/Python/Products 3. Try to start the second instance. No joy :( Thanks in advance, chas

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RE: [Zope] Submitting a patch for a DA?
by Rob Page 21 Dec '99

21 Dec '99

Hi Timothy! > Never thought I would get the privilege of doing this... Congratulations. Is Open Source great or what!?!?! :^) > As some of you may have seen, I have been requesting help for the > PostgreSQL DA, I didn't get any help, so I finally figured out that > maybe no one new the answer. I went digging through the DA and think I > have solved my problem. Now I have a two part question: > > 1. How do I submit a patch (I've never done it before)? > > 2. To whom do I submit the patch? I think Ross Reedstrom did the PostgreSQL DA: reedstrm(a)rice.edu I'd send him the patch. Thanks! --Rob

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