[Tutor] What are the benefits of template or abstract base classes?

[Peter Otten]

boB Stepp wrote:

> Now in "4.2 Inheritance" at
> https://dabeaz-course.github.io/practical-python/Notes/04_Classes_objects/02_Inheritance.html
> 
> class TableFormatter:
>      def headings(self, headers):
>          '''
>          Emit the table headings.
>          '''
>          raise NotImplementedError()
> 
>      def row(self, rowdata):
>          '''
>          Emit a single row of table data.
>          '''
>          raise NotImplementedError()
> 
> with the comment:
> 
> "This class does nothing

> What are your thoughts?

Dunno. Maybe writing code that does nothing is an art form, like poems or 
songs... and mypy is your arbiter elegantiarum.