June 2006 - Zope-Dev

Re: __contains__ and acquisition problem?
by Florent Guillaume 02 Jun '06

02 Jun '06

Ok I fixed this for Zope 2.10 and trunk: http://svn.zope.org/?view=rev&rev=68459 Florent Jim Fulton wrote: > Anyway, the acquisition wrapper implementation hasn't been updated to > handle > many slots that were added in recent years, including __contains__. > > Jim > >> Florent Guillaume wrote: >> >>> Could anybody shed some light on what's happening here: >>> >>> >>> from Acquisition import Implicit >>> >>> >>> class Impl(Implicit): >>> ... pass >>> >>> >>> class C(Implicit): >>> ... def __getitem__(self, key): >>> ... print 'getitem', key >>> ... if key == 4: >>> ... raise IndexError >>> ... return key >>> ... def __contains__(self, key): >>> ... print 'contains', repr(key) >>> ... return key == 5 >>> >>> The class by itself behaves as expected: >>> >>> >>> c = C() >>> >>> 5 in c >>> contains 5 >>> True >>> >>> 3 in c >>> contains 3 >>> False >>> >>> Let's put c in the context of i: >>> >>> >>> i = Impl() >>> >>> i.c = c >>> >>> Now why is the following happening? Why is __contains__ not used? >>> >>> >>> 3 in i.c # c.__of__(i) >>> getitem 0 >>> getitem 1 >>> getitem 2 >>> getitem 3 >>> True >>> >>> 5 in i.c >>> getitem 0 >>> getitem 1 >>> getitem 2 >>> getitem 3 >>> getitem 4 >>> False >>> >> >> > > -- Florent Guillaume, Nuxeo (Paris, France) Director of R&D +33 1 40 33 71 59 http://nuxeo.com fg(a)nuxeo.com

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Re: SVN: Zope/trunk/lib/python/AccessControl/ Make python security policy work with a boolean __aatus__
by Philipp von Weitershausen 01 Jun '06

01 Jun '06

Florent Guillaume wrote: > Log message for revision 68446: > Make python security policy work with a boolean __aatus__ Wow, I wasn't aware that only ints were possible. Shouldn't this be backported to Zope 2.9 as well? I consider it a bug when an 1 won't be exchangeable for True in something that's apparently either true of false. By the way, a test for isinstance(__aatus__, int) would also be true for booleans because bool inherits from int. Philipp

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Zope 2.10 TALES repeat and 'item'
by Florent Guillaume 01 Jun '06

01 Jun '06

The following TALES expression using the 'item' name doesn't work: python:repeat['item'].even() Unauthorized: The container has no security assertions. Access to 'even' of (Products.PageTemplates.Expressions.PathIterator object at 0x47986f0) denied. whereas this works: repeat/item/even Anyone knows why? Florent -- Florent Guillaume, Nuxeo (Paris, France) Director of R&D +33 1 40 33 71 59 http://nuxeo.com fg(a)nuxeo.com

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Zope 2.10 deprecation warnings
by Florent Guillaume 01 Jun '06

01 Jun '06

Current bare Zope 2.10 sends some deprecation warnings because it itself imports things that it deprecates, this will have to be hidden. Suggestions welcome: - App/Product.py imports ZClasses which are deprecated, - Products/ZCatalog/ZCatalog.py imports TextIndex (for the Splitters) but TextIndex is deprecated. Also I've checked in a fix for the ZPT warnings such as: Init Ambiguous name for method of Products.PageTemplates.ZopePageTemplate.ZopePageTemplate: 'manage' != 'manage_main' Florent -- Florent Guillaume, Nuxeo (Paris, France) Director of R&D +33 1 40 33 71 59 http://nuxeo.com fg(a)nuxeo.com

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tempstorage to ZEO?
by Sidnei da Silva 01 Jun '06

01 Jun '06

I was looking, and trying to understand why 'tempstorage' is not included in the ZODB. Since some people might want to share sessions between ZEO clients, and that 'tempstorage' is what is mounted as '/temp_folder/session_data', why not make that easy to mount via ZEO? Does anyone see a problem with this? What I'm proposing is to move 'tempstorage' to 'ZODB', since it has no dependency on anything other than 'zLOG'. -- Sidnei da Silva Enfold Systems http://enfoldsystems.com Fax +1 832 201 8856 Office +1 713 942 2377 Ext 214

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