Class variable inheritance
tjreedy at udel.edu
Tue Sep 8 15:52:48 CEST 2009
>> Makes sense to me. To step through what's happening:
>>>>> A.n, B.n
>> (0, 0)
>> Here, the lookup on B.n fails (that is, B itself has no variable n),
>> and thus falls back to A.n
> See, this is what tripped me up, right at the beginning. I thought B
> would inherit (as in copy) the variable n from A.
Python does not copy objects unless asked to.
Inheritance is a link request, not a copy request.
> Can you point out to me which part (or parts) of the Language
> Reference says this is the way it's supposed to be?
I could, but I will let you read and find what it says about class
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