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RE: [Zope] Newbie - passing a list to an External Method
by Passin, Tom 22 Apr '03

22 Apr '03

[ Dylan Reinhardt] > > I'm not sure if I can explain _all_ of what you're seeing here... you > seem to be having a different error than you were before and I don't > have any experience with the sping module. > > But... do have something to recommend. Use: > > def run(self, fileID, lines): > > to define your external method. > > The first argument passed to an external method is the "self" > object, a > reference to the context from which the method was called. > Aren't you mixing up Python scripts with External Methods? I have never included a 'self' parameter in any of my external methods and they work just fine. Cheers, Tom P

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RE: [Zope] Python Script Error
by volker.wend＠efgbsh.de 22 Apr '03

22 Apr '03

He folks, I verified now, that the following lines in the standard.py caused my problems: --> 'restructured_text', from DocumentTemplate.DT_Var import special_formats, \ whole_dollars, dollars_and_cents, structured_text, sql_quote, \ html_quote, url_quote, url_quote_plus, newline_to_br, thousands_commas, \ url_unquote, url_unquote_plus, restructured_text ---------------------------------^ I installed the restructured Text Module. I didn't check after each installed product if all sites were working and I did not realize that the standard.py module got changed. So I got into that trouble.... http://www.zope.org/Members/ajung/reStructuredText/ Anyway now it works almost as before. Volker -----Original Message----- From: Andreas Jung [mailto:andreas@andreas-jung.com] Sent: Freitag, 18. April 2003 11:06 To: Dieter Maurer; volker.wend(a)efgbsh.de Cc: zope(a)zope.org Subject: Re: [Zope] Python Script Error This problems seems to be only in 2.6.X but not in 2.5 and not in 2.7. I filed a collector issue for this problem since it affects the usage of the standard module both in ZPT and PythonScripts. -aj --On Donnerstag, 17. April 2003 21:03 Uhr +0200 Dieter Maurer <dieter(a)handshake.de> wrote: > volker.wend(a)efgbsh.de wrote at 2003-4-17 15:36 +0200: > > any Idea what goes wrong ? > > > > Site Error > > An error was encountered while publishing this resource. > > > > Error Type: ImportError > > Error Value: import of "html_quote" from > "Products.PythonScripts.standard" > is unauthorized. The container > has no security assertions. Access to > 'html_quote' of (module > 'Products.PythonScripts.standard' from 'C:\Program > > Files\Zope\lib\python\Products\PythonScripts\standard.py') denied. > > Funny! > > Looks as if there were some problem earlier when "standard" was > imported for the first time. The "security.apply" comes at the end of > "standard.py" (and only it makes the security declaration active). > When it is not reached, there will be no active security declaration. > > Do you see anything suspicious in the log file > (--> doc/LOGGING.txt). > > > Dieter > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev )

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Re: [Zope] Newbie - passing a list to an External Method
by Ashley Lloyd 22 Apr '03

22 Apr '03

Dylan, Thanks very much for the reply. AFAIK, there is absolutely no change made to lines before trying to use it, but I'll put a bit more detail in here, so someone can no doubt prove me wrong! I set the value of lines, passed to the external method, to be: ['Hello, this is my test pdf', 'This is still my test pdf.', 'Still here', 'and this is the end ..'] ( Just in case, this is done using a python script: lines=[] lines.append("Hello, this is my test pdf") lines.append("This is still my test pdf.") lines.append("Still here") lines.append("and this is the end ..") return lines ) If the code in the External Method is: ******************************************************************** #!/usr/bin/env python def run(fileID, lines): import sping.stringformat from sping.PDF import PDFCanvas from sping.PS import PSCanvas filename="c:/zopepdf/"+fileID canvas = PDFCanvas(size=(350,200), name=filename) y = 20 for line in lines: sping.stringformat.drawString(canvas, line, 10,y) y = y + 20 canvas.flush() canvas.save() return fileID ******************************************************************** Then I get the following error details: ==================================================================== Error Type AttributeError Error Value __getitem__ Traceback (most recent call last): File "C:\PROGRA~1\ZopeSite\lib\python\DocumentTemplate\DT_Try.py", line 149, in render_try_except result = render_blocks(self.section, md) File "C:\PROGRA~1\ZopeSite\lib\python\DocumentTemplate\DT_Let.py", line 75, in render else: d[name]=expr(md) File "C:\PROGRA~1\ZopeSite\lib\python\DocumentTemplate\DT_Util.py", line 159, in eval return eval(code, d) File "", line 2, in f File "C:\PROGRA~1\ZopeSite\lib\python\Products\ExternalMethod\ExternalMethod.py", line 198, in __call__ try: return apply(f,args,kw) File "C:\PROGRA~1\ZopeSite\Extensions\formatted-strings.py", line 21, in run from sping.PDF import PDFCanvas AttributeError: __getitem__ ==================================================================== Whereas, if the code in the External Method is: ******************************************************************** #!/usr/bin/env python def run(fileID, lines): import sping.stringformat from sping.PDF import PDFCanvas from sping.PS import PSCanvas filename="c:/zopepdf/"+fileID canvas = PDFCanvas(size=(350,200), name=filename) return lines ******************************************************************** then this returns the value of lines in the manner above. What am I doing wrong? TIA, Ashley From: Dylan Reinhardt <zope(a)dylanreinhardt.com> Reply-To: zope(a)dylanreinhardt.com To: Ashley Lloyd <ashleylloyd(a)hotmail.com> CC: zope(a)zope.org Subject: Re: [Zope] Newbie - passing a list to an External Method Date: 17 Apr 2003 10:11:17 -0700 On Thu, 2003-04-17 at 08:01, Ashley Lloyd wrote: > Error Type: AttributeError > Error Value: __getitem__ This error is typical when the object you're trying to iterate over isn't a sequence. Most likely, something you've done on lines 2-27 has changed the value of lines to None. Look extra carefully at any and all assignments you make in the external method. In particular, it's possible you may have committed a common error with lists, ex: a = [1,2.3] b = a b = None # now the value of a is None! HTH, Dylan _________________________________________________________________ On the move? Get Hotmail on your mobile phone http://www.msn.co.uk/mobile

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Accelerating images without proxy
by Marc Burgauer 22 Apr '03

22 Apr '03

Hi I have been asking about database cache parameters recently here. The replies received recommended using squid as a reverse proxy. However, the site I am trying to accelerate has large areas, which are password protected and configuration of squid looks like a minor nightmare. I have analysed the problem and I believe I could get a major boost if we could just cache some images. There are about two dozen images, mainly logos and navigation images that are used on almost every page. If I could just cache these, that should help a lot. (We are not in control of the HTML! Believe me, I do not consider this good practice. But it was a major reason why we were able to convince the customer to use Zope because it allowed for his preferred designers to do the HTML; we only did the "functionality".) I looked into the various internal mechanisms (Accelerated HTTP Cache Managers, Cache-tab on image object) and read the help. But I'm still not sure if this is helpful. The help text constantly tells me that some operations using cache can backfire and become more expensive. Can anybody share any light on this issue, please? Cheers Marc

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Attribute Error with Container
by Mark Nenadov 22 Apr '03

22 Apr '03

Hello all, I'm trying to make a Python script that checks the value of ZClass property (within a property sheet). What I am doing is very similar to the example implementation of "isHungry" in "The Zope Book". However, I am getting an error (error type: Attribute Error, and error value: SensoryProperties), when I try something equivalent to the following: if (container.SensoryProperties.taste == "good"): return 1 else: return 0 Does anyone have a clue what this might be? I assume that since "container" is a bound name I don't need to do anything special to "enable" it. I would appreciate any help or direction that I could be given. ~Mark

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Wow!, I added 3+ |nches 07awbst9kq6
by Jennifer Miller 22 Apr '03

22 Apr '03

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EXTEND your meat pole yv99cj1m
by Nathaniel Hayes 22 Apr '03

22 Apr '03

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Create links for newly uploaded page templates
by Patel, Tejash 22 Apr '03

22 Apr '03

Hello everyone, I have recently been trying to do this and am not getting far. I want my sites homepage to have links to all new uploaded page templates/dtml/3rd party products to my site that are being ftp-ed on a daily basis. I have used the following code which works great for content that is listed in the portal_types: ( I got the code from zopelabs.com) <div metal:fill-slot="main" tal:define="results python:container.portal_catalog(meta_type=[ 'Document', 'Event', 'Image', 'News Item', 'Link', 'ZWiki Page', 'Book', 'Forum', 'Photo Album', 'CMFQuote', 'Blog Entry' ],sort_on='modified',sort_order='reverse'); Batch python:modules['Products.CMFPlone'].Batch; DateTime python:modules['DateTime'].DateTime; b_start python:request.get('b_start',0);"> The code works fine for the listed items Document, Event, Link etc. But if I add the meta_type page template in the list it does not work. I want to be able to show links to uploaded/ftp-ed such as dtml, page templates, and other 3rd party products. Do I need to create portal_types for each of these items. If so how do I do that? I have used all the examples that JCLawrence has provided on zopelabs.com. They work great for portal_types that have Factory-based Type Information. But I could not find any code on page templates, or dtml pages. Can someone help? Thank you TP

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How to upload an image?
by Jan Maška 22 Apr '03

22 Apr '03

Hi there, I'm trying to provide an editors' interface for front-end users, who I don't want to allow access to ZOPE management console (for obvious reasons - if you've ever developed for managers and marketing, you'll understand).. :-)) Right now, my problem is an interface for adding 'NEWS-like' items - press releases, announcements etc. Errata: No problem with item creation, but I need to enable users to add a single image to the news item. I read tons of stuff from wannabe-tutorials to fairly complex solutions (Python libraries etc.).. and I'm only getting more confused. Is there a simple and reliable solution based on DTML or simple Python? e.g. <dtml-call "manage_addImage('imagename',$REQUEST.form['imagefile'])"> ..? Given that this is a pretty common problem, i suspect somebody's had to solve it already. I'd be really happy if you could give me a hint or a link to really *WORKING* howto.. or a demo in ZEXP would be really amazing help. Regards and thanks in advance. -Mac =============================== Jan Maska, web developer Systinet, Prague(CZ) jan.maska(a)systinet.com tel.:(+420)608453492 visit http://www.systinet.com ===============================

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Re: [Zope] Newbie - passing a list to an External Method
by Ashley Lloyd 22 Apr '03

22 Apr '03

Just thought I should add this bit in, sorry: If I assign to the lines variable inside the external method, using the same code that is in the python script, ie: ******************************************************************** #!/usr/bin/env python def run(fileID, lines): import sping.stringformat from sping.PDF import PDFCanvas from sping.PS import PSCanvas filename="c:/zopepdf/"+fileID canvas = PDFCanvas(size=(350,200), name=filename) lines=[] lines.append("Hello, this is my test pdf") lines.append("This is still my test pdf.") lines.append("Still here") lines.append("and this is the end ..") y = 20 for line in lines: sping.stringformat.drawString(canvas, line, 10,y) y = y + 20 canvas.flush() canvas.save() return fileID ******************************************************************** then this works fine. (The lines variable is still passed to the External Method, by the way, it just gets over-written) Thanks again, Ashley _________________________________________________________________ Use MSN Messenger to send music and pics to your friends http://www.msn.co.uk/messenger

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