[Python-Dev] 2.6 object.__init__ & deling __new__

P.J. Eby pje at telecommunity.com
Wed Jul 15 17:58:42 CEST 2009


At 07:29 PM 7/15/2009 +1200, Greg Ewing wrote:
>P.J. Eby wrote:
>
>>In effect, 2.6 forces you to have a common known base class *other* 
>>than 'object' in order to write co-operative classes.  :-(
>
>You have to do that anyway if you want to make cooperative
>calls to any method *other* that __init__.

I haven't found that to be an issue, actually, since there's usually 
a base where the "bottom" version of those methods live, and anything 
implementing those methods is going to inherit it via the mixin.  The 
problem is that for at least __init__ and __new__, 'object' *is* the 
"bottom" -- and there may be more than one family of mixins that need 
to call it.



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