> On Feb 24, 2017, at 1:24 AM, Steve D'Aprano <steve+pyt...@pearwood.info>
> wrote:
>
> On Fri, 24 Feb 2017 11:19 am, Irv Kalb wrote:
>
>> Hi,
>>
>> I have built a set of three classes:
>>
>> - A super class, let's call it: Base
> [...]
>> I would like to add is some "insurance" that I (or someone else who uses
>> my code) never instantiates my Base class, It is not intended to be
>> instantiated because some of the needed instance variables are only
>> created in the __init__ method of ClassA and ClassB.
>
> class Base:
> def __init__(self):
> if type(self) is Base:
> raise TypeError("cannot instantiate Base class")
>
>
> Does that help?
>
>
Double D'oh!!
That's exactly what I was looking for. (Why didn't I think of that?)
Thanks very much!
Irv
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