Inheritance but only partly?

[Gary Herron]

Gary Herron wrote:
> process wrote:
>   
>> Let's say I have a class X which has 10 methods.
>>
>> I want class Y to inherit 5 of them.
>>
>> Can I do that? Can I do something along the lines of super(Y, exclude
>> method 3 4 7 9 10) ?
>>
>> --
>> http://mail.python.org/mailman/listinfo/python-list
>>   
>>     
>  No.
>
> But why do yo care?  You can just ignore the 5 you don't want -- their
> existence costs you nothing in either memory or execution speed.
>
> You can also redefine the ones you don't want inherited:
>
> class A:
>     def DontInheritMe(self, ...):
>        ...
>
> Class B(A):
>     def DontInheritMe(self, ...):
>        raise NotImplementedError // Or some such
>
>
> Gary Herron
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>   

Here's another (very Python) possibility

class Base:
    class m1(self, ...):
       ...
    class m2(self, ...):
       ...

class NotInheritable:
    class m3(self, ...):
      ...

class A(Base, NotInheritable);
    ...

class B(Base):
   ...