October 2008 - Zope-Dev

catalog performance: query plan
by Alan Runyan 10 Nov '08

10 Nov '08

I agree with Tres. A lot more can be done with Indexes and Catalog without caching. The most exiciting development in Catalog optimizations comes out Jarn. Helge Tesdal (iirc) did a buncha work at a RDBMS company when he was in college. He has a protoype of a query plan for ZCatalog. http://www.jarn.com/blog/catalog-query-plan I would like to ask Roche and others to look at the Query Plan. Caching is a total PITA because invalidation machinery becomes overwhelming complex and unwieldly quickly in production. -- Alan Runyan Enfold Systems, Inc. http://www.enfoldsystems.com/ phone: +1.713.942.2377x111 fax: +1.832.201.8856

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Interface for renderable component
by Malthe Borch 06 Nov '08

06 Nov '08

Currently a number of z3c.* packages rely on ``zope.pagetemplate.interfaces.IPageTemplate`` even though they don't care at all that it's a template they're getting. All they need to know is that it's a callable and that it returns HTML. I think it'd be a good idea to introduce the following interface that we can use instead: class IRenderer(Interface): def __call__(**kwargs): """Outputs HTML.""" This interface should be defined in a package with minimal dependencies. \malthe

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Proposal: Backporting some Python 2.5/2.6 fixes
by Sidnei da Silva 04 Nov '08

04 Nov '08

Hi all, I would like to propose backporting some of the fixes needed for Python 2.5 and 2.6 all the way down to Zope 2.10. The fixes that would be backported would only be those that deal with syntax changes (eg: 'with' and 'as' keyword being used as variables, relative imports) and some C-level changes, to Acquisition and zope.app.container if I recall. I would *not* backport changes to RestrictedPython because those are actually features (support for newer versions of Python) as opposed to the other changes, which are just 'bugfixes' IMHO. Would anyone be against this? -- Sidnei da Silva Enfold Systems http://enfoldsystems.com Fax +1 832 201 8856 Office +1 713 942 2377 Ext 214 Skype zopedc

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ZCatalog caching with memcached
by Hedley Roos 03 Nov '08

03 Nov '08

Hi all The past few weeks I've been optimizing a busy Plone site and so collective.catalogcache was born. It uses memcached as a distributed ZCatalog cache. It is currently in production and seems to be holding just fine. The site went from being unusable to serving quite a bit of data. I'll modify it in future to not be too tied to just memcached, but that's still some way off. BTW, if you do not have memcached available the catalog functions as usual. It's only been tested for Zope 2.9.6 - 2.10.6. The repo is at http://dev.plone.org/collective/browser/collective.catalogcache. The URL may contain the word Plone but it's all Zope :) The readme contains more info and instructions. The product is a monkey patch to Catalog.py. I'd love some feedback and suggestions. Hedley

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Re: [Zope-dev] SVN: Zope/branches/gsoc-python-2.5/utilities/mkzopeinstance.py sha -> hashlib
by Tres Seaver 31 Oct '08

31 Oct '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Andreas Jung wrote: > Log message for revision 92197: > sha -> hashlib That needs to be a conditional import, with a fallback to the old sha module: hashlib is not present in python 2.4. E.g.: try: import hashlib except ImportError: # Python < 2.5 import sha _sha = sha.new else: _sha = hashlib.sha1 and then use '_sha' in the code. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 tseaver(a)palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFI9NDv+gerLs4ltQ4RAuAuAJ9KX9WaftLbd1rQwCJ+JVNnA5QAeQCfTNjw cq+cees5SixBxFY5J2SS3FI= =PmQk -----END PGP SIGNATURE-----

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Bounty for Breaking RestrictedPython?
by Alan Runyan 31 Oct '08

31 Oct '08

So maybe we could crowd source the RestrictedPython problem? If we could create a pool of money from various people/organizations. And offer someone 50$ per scenario where they can break Restricted Python? Then it turns into sort of a game. Not only do you get "bragging rights" but some money (or something from Amazon). -- Alan Runyan Enfold Systems, Inc. http://www.enfoldsystems.com/ phone: +1.713.942.2377x111 fax: +1.832.201.8856

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Re: [Zope-dev] Zope 2.12 features / roadmap
by Kit BLAKE 31 Oct '08

31 Oct '08

> Andreas Jung <lists(a)zopyx.com> > From what I know of other consumers of Zope 2, it seems Haufe doesn't > have a need for any of the Zope 2.12 features at this point, > but is using Zope 2.11 / Zope 3.4 as a development base. > > There is no special need for a Zope 2.12 release from the Haufe side > - we still have to catch up :-) Ditto for Silva (the catch up as well) -- Kit BLAKE · Infrae · http://infrae.com/ + 31 10 243 7051

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Zope Tests: 4 OK, 2 Failed
by Zope Tests Summarizer 31 Oct '08

31 Oct '08

Summary of messages to the zope-tests list. Period Thu Oct 30 12:00:00 2008 UTC to Fri Oct 31 12:00:00 2008 UTC. There were 6 messages: 6 from Zope Tests. Test failures ------------- Subject: FAILED (failures=3) : Zope-trunk Python-2.4.5 : Linux From: Zope Tests Date: Thu Oct 30 22:12:28 EDT 2008 URL: http://mail.zope.org/pipermail/zope-tests/2008-October/010398.html Subject: FAILED (failures=3) : Zope-trunk Python-2.5.2 : Linux From: Zope Tests Date: Thu Oct 30 22:13:58 EDT 2008 URL: http://mail.zope.org/pipermail/zope-tests/2008-October/010399.html Tests passed OK --------------- Subject: OK : Zope-2.8 Python-2.3.7 : Linux From: Zope Tests Date: Thu Oct 30 22:06:24 EDT 2008 URL: http://mail.zope.org/pipermail/zope-tests/2008-October/010394.html Subject: OK : Zope-2.9 Python-2.4.5 : Linux From: Zope Tests Date: Thu Oct 30 22:07:55 EDT 2008 URL: http://mail.zope.org/pipermail/zope-tests/2008-October/010395.html Subject: OK : Zope-2.10 Python-2.4.5 : Linux From: Zope Tests Date: Thu Oct 30 22:09:25 EDT 2008 URL: http://mail.zope.org/pipermail/zope-tests/2008-October/010396.html Subject: OK : Zope-2.11 Python-2.4.5 : Linux From: Zope Tests Date: Thu Oct 30 22:10:58 EDT 2008 URL: http://mail.zope.org/pipermail/zope-tests/2008-October/010397.html

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Bristow T has sent you a private message
by Bristow T 30 Oct '08

30 Oct '08

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Re: [Zope-dev] [Checkins] SVN: zc.recipe.cmmi/trunk/README.txt Corrected the link to the SVN repository; I had put in the direct one via
by Benji York 30 Oct '08

30 Oct '08

On Thu, Oct 30, 2008 at 8:15 AM, Jeff Rush <jrush(a)taupro.com> wrote: > Log message for revision 92695: > Corrected the link to the SVN repository; I had put in the direct one via > svn+ssh when it should have been the one accessed via http. > - <http://svn.zope.org/repos/main/zc.recipe.cmmi/trunk#egg=zc.recipe.cmmi-dev> > + <http://svn.zope.org/zc.recipe.cmmi/trunk#egg=zc.recipe.cmmi-dev> I'd be surprised if setuptools can build an egg from the ViewCVS web page that http link points at. I suspect you want svn://svn.zope.org/repos/main/zc.recipe.cmmi/trunk which is available anonymously (not the lack of "+ssh" in the protocol). -- Benji York Senior Software Engineer Zope Corporation

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