[Zope-dev] regression with Acquisition and __iter__ in Python 2.5 / Zope 2.12

[Chris Withers]

Dieter Maurer wrote:
> It does not go wrong with Zope 2.11/Python 2.4, neither.
> Maybe, changes done for Python 2.5/2.6 compatibility broke something.
> 
> Here is a simpler script to check for problems:

Indeed:

 >>> class C:
...   l=[1,2,3]
...   def __getitem__(self, i):
...       return self.l[i]
list(_)

...
from Acquisition import Implicit
class C(Implicit):
 >>> c=C()
   def __getitem__(self, i):
 >>> iter(c)

<iterator object at 0xb7db8ecc>
 >>> list(_)
iter(c)
[1, 2, 3]
 >>>
list(_)
 >>> from Acquisition import Implicit
iter(c2)
list(_)
 >>> class C(Implicit):
...   l=[1,2,3]
...   def __getitem__(self, i):
...       return self.l[i]
...
 >>> c=C()
 >>> iter(c)
<iterator object at 0xb7dbb38c>
 >>> list(_)
[1, 2, 3]
 >>> c2=C().__of__(c)
 >>> iter(c2)
Traceback (most recent call last):
   File "<console>", line 1, in <module>
AttributeError: __iter__

cheers,

Chris

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