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@nuxeo.com