[Python-Dev] PEP 435 - ref impl disc 2

Glenn Linderman v+python at g.nevcal.com
Sun May 5 09:16:56 CEST 2013


On 5/5/2013 12:10 AM, Glenn Linderman wrote:
> On 5/4/2013 11:46 PM, Glenn Linderman wrote:
>> Somehow, the overloading is not finding the __add__ operator in the 
>> NamedInt class, when the NamedInt's are wrapped in enumerations.
>
> And I guess I figured it out... NamedInt needs to test
>
>     issubclass( type( self ), NamedInt )
>
> rather than
>
>     isinstance( self, NamedInt )
>
> and likewise for other.  Sorry for the noise, and I finally figured 
> out what issubclass is for  :)
Sorry, it is getting late here... issubclass was not the cure I thought 
it might be.
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