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Mon Jan 10 23:42:52 CET 2005 · https://mail.python.org/pipermail/python-dev/2005-January/050832.html

On Jan 10, 2005, at 16:38, Phillip J. Eby wrote:

> At 07:42 PM 1/10/05 +0100, Alex Martelli wrote:
>
>> On 2005 Jan 10, at 18:43, Phillip J. Eby wrote:
>>    ...
>>> I am not saying we shouldn't have a tp_conform; just suggesting that 
>>> it may be appropriate for functions and modules (as well as classic 
>>> classes) to have their tp_conform delegate back to 
>>> self.__dict__['__conform__'] instead of a null implementation.
>>
>> I have not considered conformance of such objects as functions or 
>> modules; if that is important,
>
> It's used in at least Zope and PEAK; I don't know if it's in use in 
> Twisted.

SVN trunk of Twisted (what will be 2.0) uses zope.interface.  It still 
has the older stuff implemented as a wrapper on top of zope.interface, 
but I think the guideline is to just use zope.interface directly for 
new code dependent on Twisted 2.0.

-bob

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[Python-Dev] PEP 246, redux